# InterDigital, Inc. (IDCC) FY 2022 MD&A

Verbatim Item 7 Management's Discussion and Analysis from InterDigital, Inc.'s 10-K for fiscal year 2022.

SEC filing source: https://www.sec.gov/Archives/edgar/data/1405495/000140549523000011/idcc-20221231.htm
Accession: 0001405495-23-000011
Filing date: 2023-02-15
Report date: 2022-12-31
Extracted structurally from real Item 7 body heading to real Item 7A/8 boundary.
Confidence: high

Company profile: /company/IDCC/
All MD&A years: /company/IDCC/mda/
Previous year: /company/IDCC/mda/fy2021/ (FY 2021)
Next year: /company/IDCC/mda/fy2023/ (FY 2023)

Item 7.     MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

OVERVIEW

The following discussion should be read in conjunction with the Consolidated Financial Statements and the Notes thereto contained in this Form 10-K. The following section generally discusses our financial condition and results of operations for our fiscal year ended December 31, 2022 compared to our fiscal year ended December 31, 2021. A discussion regarding our financial condition and results of operations for December 31, 2021 compared to our fiscal year ended December 31, 2020 can be found in Part II, Item 7 of our Annual Report on Form 10-K for fiscal year 2021, filed with the Securities and Exchange Commission (the “SEC”) on February 17, 2022.

Throughout the following discussion and elsewhere in this Form 10-K, we refer to “recurring revenues” and “non-recurring revenues.” For variable and dynamic fixed-fee license agreements, “non-recurring revenue” primarily represents revenue associated with reporting periods prior to the execution of the license agreement, while “recurring revenue” represents revenue associated with reporting periods beginning with the execution of the license agreement. For static fixed-fee license agreements, we typically classify the associated revenue as non-recurring revenue.

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Business

InterDigital, Inc. ("InterDigital") is a global research and development company focused primarily on wireless, visual and related technologies. We design and develop advanced technologies that enable connected, immersive experiences in a broad range of communications and entertainment products and services. We license or intend to license our innovations worldwide to companies providing such products and services, including wireless communications, consumer electronics, personal computer, and automotive, as well as cloud-based services such as video streaming. Since our founding in 1972, our engineers have designed and developed a wide range of innovations that are used in wireless products and networks, from the earliest digital cellular systems to 5G. With the acquisitions of the patent licensing business (the "Technicolor Patent Acquisition") and research and innovation unit of visual technology industry leader Technicolor SA ("Technicolor") (together, the "Technicolor Acquisitions"), we are a leader in video processing, encoding/decoding, and display technology, with a significant Artificial Intelligence ("AI") research effort that intersects with both wireless and visual technologies.

InterDigital is one of the largest pure research and development and licensing companies in the world, with one of the most significant patent portfolios of fundamental wireless and video technologies. As of December 31, 2022, InterDigital's wholly owned subsidiaries held a portfolio of approximately 28,800 patents and patent applications related to wireless communications, video coding, display technology, and other areas relevant to communications and entertainment products and services. Our portfolio includes numerous patents and patent applications that we believe are or may be essential or may become essential to standards established by many Standards Development Organizations ("SDOs"), including cellular and other wireless communications and video technology standards. Those wireless standards include 3G, 4G and the IEEE 802 suite of standards, as well as patents and patent applications that we believe are or may become essential to 5G standards that currently exist or are under development. Our video technology portfolio includes patents and applications relating to standards established by ISO/IEC Moving Picture Expert Group (MPEG), the ITU-T Video Coding Expert Group (VCEG), the Joint Collaborative Team on Video Coding (JCT-VC) and the Joint Video Expert Team (JVET), among others.

Our wireless portfolio has largely been built through internal development, supplemented by joint development projects with other companies, and select acquisitions of patents and companies. Our video technology portfolio combines patents and applications that InterDigital obtained through the Technicolor Acquisitions and patents and applications created by internal development. Our patented inventions have been implemented in a wide variety of products and services, including smartphones, other wireless communication devices and infrastructure equipment, such as tablets, and base stations, consumer electronics and Internet of Things ("IoT") products, such as televisions, laptops, gaming consoles, set-top boxes, streaming devices and connected automobiles.     

Revenue

In 2022, 2021, and 2020, our total revenues were $457.8 million, $425.4 million, and $359.0 million, respectively. Our recurring revenues in 2022, 2021 and 2020 were $403.9 million, $351.7 million, and $336.8 million, respectively. In 2022, 2021, and 2020, we recognized $53.9 million, $73.7 million and $22.2 million, respectively, of non-current patent royalties and patent sales as more fully discussed below. In 2022, fixed-fee royalties accounted for 90% of our recurring revenues. These fixed-fee revenues are not affected by the related licensees’ success in the market or the general economic climate. The majority of the remaining portion of our recurring revenue was variable in nature due to the per-unit structure of the related license agreements.

Beginning in 2022, we updated our disaggregated revenue disclosures to provide information to enable investors to better understand the composition of revenue from contracts with customers. As a result, variable patent royalty revenue and fixed-fee royalty revenue was combined and disaggregated into the Smartphone and CE, IoT/Auto groupings. Additionally, the Other category includes current technology solutions revenues and non-recurring revenue is comprised of past patent royalties and revenues from static agreements. We believe this better reflects both our current revenue sources and our growth opportunities across these vertical markets.

The Company considers Smartphone and CE, Auto/IoT as the groupings that best reflect the Company's core licensing product verticals. The Smartphone revenue grouping consists primarily of smartphones and also includes other wireless communication devices and infrastructure equipment, such as tablets, and base stations. The CE, IoT/Auto revenue grouping consists of consumer electronics and IoT products, such as televisions, laptops, gaming consoles, set-top boxes, streaming devices and connected automobiles.

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New Agreements

During 2022, we entered an agreement with Samsung for binding arbitration to take a new license and eight direct patent license agreements, including agreements with Apple, Amazon, Panasonic, Zebra, and LG as discussed below. We agreed to renew our patent license agreement with Samsung and enter into binding arbitration to determine the final terms of the license, including the amount payable by Samsung under the new agreement.

Direct Licenses

During second quarter 2022, we entered into a multi-year, worldwide, non-exclusive, fee bearing patent license agreement with Amazon Technologies, Inc., covering a range of Amazon's consumer electronic devices. We also entered into a multi-year, worldwide, non-exclusive, royalty bearing license with Zebra Technologies Corporation, under the Company’s standard essential patents related to 4G, 5G and Wi-Fi.

During third quarter 2022, we renewed a patent license agreement with Apple. The Company expects to recognize approximately $133.7 million in revenue each year over the seven-year term of the license, which commenced on October 1, 2022.

During fourth quarter 2022, the Company entered into four licenses covering digital television and/or video patents, including with Panasonic Entertainment & Communication Co., Ltd. and LG Electronics.

Expiration of License Agreements

We had seven revenue generating patent license agreements that were scheduled to expire between January 1, 2022 and December 31, 2022, including with Apple and Samsung. As discussed above, Apple was renewed to a seven-year agreement, which commenced on October 1, 2022. We also agreed to renew our patent license agreement with Samsung and enter into binding arbitration to determine the final terms of the license, including the amount payable by Samsung under the new agreement. We expect to recognize revenue for Samsung effective January 1, 2023, at a conservative level consistent with the revenue we have recognized from our patent license agreement that just expired on December 31, 2022. We believe that it is likely the arbitration award will exceed the conservative estimate and require a true-up at that time. The remaining patent license agreements that have not yet been renewed contributed $15.4 million of recurring revenue in 2022.

Ten of our revenue generating patent license agreements are scheduled to expire during 2023. Collectively, these agreements accounted for $55.2 million, or approximately 14%, of recurring revenue in 2022. We are actively working to renew these agreements on terms consistent with the licensees' respective market positions and utilization of our technology.

Intellectual Property Rights Enforcement

If we believe a party is required to license our patents in order to manufacture, use and/or sell certain products and such party refuses to do so, we typically offer such party to have royalty rates, or other terms, set by third party adjudicators (such as arbitrators). If the party refuses that offer and we believe they are unwilling to agree to a patent license on a fair, reasonable and non-discriminatory basis, we may have no other viable recourse but to institute legal action against them to enforce our patent rights. This legal action has typically taken the form of a patent infringement lawsuit or an administrative proceeding. In addition, we and our licensees, in the normal course of business, might seek to resolve disagreements as to the rights and obligations of the parties under the applicable license agreement through arbitration or litigation. Such legal actions ultimately may be decided by the presiding court, third party adjudicator, or a negotiated resolution between the parties.

In 2019 we were engaged in litigation with ZTE, Huawei, and Lenovo. During 2020, we filed patent infringement actions against Xiaomi. We negotiated resolutions to the matters involving ZTE, Huawei and Xiaomi in December 2019, April 2020 and July 2021, respectively, while our matters with Lenovo continue to proceed. During 2021, we filed patent infringement actions against Oppo, OnePlus and realme. During 2022, we agreed to have a panel of arbitrators establish the royalties to be paid by Samsung Electronics for a worldwide license to certain of the Company’s patents, as well as any other terms to a patent license agreement on which the parties are not able to agree.

The matters are more fully discussed in Note 11, “Litigation and Legal Proceedings,” to the Notes to Consolidated Financial Statements included below in Part II, Item 8 of this Form 10-K. We filed these actions after lengthy periods of negotiation and after the refusal of our counterparties to accept our various proposals to them, including our proposal to have a third party adjudicator set a royalty rate and resolve certain other terms upon which we could not mutually agree.

In 2022, our intellectual property enforcement costs increased to $44.4 million, from $34.3 million and $28.6 million in 2021 and 2020, respectively. These costs represented 62% of our total licensing costs of $71.4 million in 2022. Intellectual property enforcement costs will vary depending upon activity levels, and it is likely they will continue to be a significant expense for us in the future.

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Cash and Short-Term Investments

As of December 31, 2022, we had $1,211.5 million of cash, restricted cash and short-term investments and an additional $727.3 million of cash payments due under contracted fixed price agreements, including $22.6 million recorded in our $53.2 million accounts receivable balance. The remaining accounts receivable is primarily related to variable patent royalty revenue.

90% of our recurring revenue comes from fixed-fee royalties. Such agreements often have prescribed payment schedules that are uneven and sometimes front-loaded, resulting in timing differences between when we collect the cash payments and recognize the related revenue.

The following table reconciles the timing differences between cash receipts and recognized revenue on a quarterly basis for each of the last three years, including the resulting operating cash flow (in thousands):

[[GREPCENT_TABLE]]
[["","2022"],["Cash vs. Non-cash revenue:","Q1","","Q2","","Q3","","Q4","","YTD"],["Fixed fee cash receipts (a)","$","43,803","","","$","3,339","","","$","26,662","","","$","384,252","","","$","458,056"],["Other cash receipts (b)","8,592","","","16,620","","","6,403","","","20,154","","","51,769"],["Change in deferred revenue","50,741","","","76,959","","","(274,034)","","","60,931","","","(85,403)"],["Change in receivables","(7,475)","","","25,163","","","354,242","","","(349,861)","","","22,069"],["Other","5,657","","","2,576","","","1,491","","","1,579","","","11,303"],["Total Revenue","$","101,318","","","$","124,657","","","$","114,764","","","$","117,055","","","$","457,794"],["Net cash (used in) provided by operating activities","$","(17,972)","","","$","(33,768)","","","$","(18,729)","","","$","356,508","","","$","286,039"]]
[[/GREPCENT_TABLE]]

[[GREPCENT_TABLE]]
[["","2021"],["Cash vs. Non-cash revenue:","Q1","","Q2","","Q3","","Q4","","YTD"],["Fixed fee cash receipts (a)","$","47,312","","","$","3,050","","","$","143,050","","","$","123,050","","","$","316,462"],["Other cash receipts (b)","10,676","","","17,808","","","7,739","","","15,556","","","51,779"],["Change in deferred revenue","23,429","","","63,230","","","(150,703)","","","80,912","","","16,868"],["Change in receivables","(3,507)","","","(499)","","","129,655","","","(110,546)","","","15,103"],["Other","4,453","","","4,146","","","13,755","","","2,843","","","25,197"],["Total Revenue","$","82,363","","","$","87,735","","","$","143,496","","","$","111,815","","","$","425,409"],["Net cash (used in) provided by operating activities","$","(9,842)","","","$","(27,259)","","","$","96,264","","","$","71,229","","","$","130,392"]]
[[/GREPCENT_TABLE]]

[[GREPCENT_TABLE]]
[["","2020"],["Cash vs. Non-cash revenue:","Q1","","Q2","","Q3","","Q4","","YTD"],["Fixed fee cash receipts (a)","$","20,019","","","$","114,413","","","$","142,019","","","$","53,410","","","$","329,861"],["Other cash receipts (b)","14,481","","","9,880","","","7,845","","","15,751","","","47,957"],["Change in deferred revenue","39,512","","","(16,829)","","","(75,749)","","","28,669","","","(24,397)"],["Change in receivables","(2,664)","","","(6,228)","","","8,902","","","(11,364)","","","(11,354)"],["Other","4,862","","","3,262","","","4,476","","","4,324","","","16,924"],["Total Revenue","$","76,210","","","$","104,498","","","$","87,493","","","$","90,790","","","$","358,991"],["Net cash (used in) provided by operating activities","$","(26,885)","","","$","69,755","","","$","101,342","","","$","19,255","","","$","163,467"]]
[[/GREPCENT_TABLE]]

(a) Fixed fee cash receipts are comprised of cash receipts from Dynamic Fixed-Fee Agreement royalties, including the associated past patent royalties

(b) Other cash receipts are comprised of cash receipts related to our variable patent royalty revenue, including the associated past patent royalties, current technology solutions revenue and royalties from static agreements.

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When we collect payments on a front-loaded basis, we recognize a deferred revenue liability equal to the cash received and accounts receivable recorded which relate to revenue expected to be recognized in future periods. That liability is then reduced as we recognize revenue over the balance of the agreement. The following table shows the projected amortization of our current and long term deferred revenue as of December 31, 2022 (in thousands):

[[GREPCENT_TABLE]]
[["","Deferred Revenue"],["2023","$","189,059"],["2024","125,652"],["2025","106,224"],["2026","1,011"],["2027","1,076"],["Thereafter","3,617"],["Total","$","426,639"]]
[[/GREPCENT_TABLE]]

Return of Capital

In June 2014, our Board of Directors authorized a $300 million share repurchase program (the “Share Repurchase Program”). Subsequently our Board of Directors authorized five $100 million increases to the program, respectively, and an additional $333 million in December 2022, bringing the total amount of the Share Repurchase Program to $1.1 billion. Since 2014, we have repurchased $733.0 million of shares at an average price of $52.22, adjusted for dividends. As of December 31, 2022, there was $400.0 million remaining under the share repurchase authorization, of which the Company expects to use up to $200 million pursuant to the modified Dutch auction tender offer commenced by the Company in January 2023.

Since January 2014, we have paid $355.1 million in dividends, bringing our total return of capital over the last nine years to $1.1 billion.

The table below sets forth the total number of shares repurchased and the dollar value of shares repurchased under the Share Repurchase Program, cash dividends on outstanding common stock declared, and the total capital returned to our shareholders (in thousands):

[[GREPCENT_TABLE]]
[["","","Share Repurchase Program","","Cash Dividends Declared","","Total Capital Returned to Shareholders"],["","","# of Shares","","Value","","Per Share","","Value"],["2022","","1,224","","","$","74,445","","","$","1.40","","","$","41,949","","","$","116,394"],["2021","","458","","","30,000","","","1.40","","","43,041","","","73,041"],["2020","","6","","","349","","","1.40","","","43,111","","","43,460"],["2019","","2,962","","","196,269","","","1.40","","","43,718","","","239,987"],["2018","","1,478","","","110,505","","","1.40","","","47,922","","","158,427"],["2017","","107","","","7,693","","","1.30","","","45,122","","","52,815"],["2016","","1,304","","","64,685","","","1.00","","","34,359","","","99,044"],["2015","","1,836","","","96,410","","","0.80","","","28,726","","","125,136"],["2014","","3,554","","","152,625","","","0.70","","","27,153","","","179,778"],["Total","","12,929","","","$","732,981","","","$","10.80","","","$","355,101","","","$","1,088,082"]]
[[/GREPCENT_TABLE]]

2027 Senior Convertible Notes

On May 27, 2022, we issued the $460.0 million aggregate principal of 2027 Notes. The net proceeds from the offering were approximately $450.0 million after deducting the initial purchasers' fees and estimated offering expenses. Additionally, on May 24 and May 25, 2022, in connection with the offering of the 2027 Notes, we entered into the 2027 Call Spread Transactions.

The net proceeds from the issuance of the 2027 Notes, after deducting fees and offering expenses, were used for the following: (i) $282.5 million was used to repurchase $273.8 million in aggregate principal amount of the 2024 Notes in privately negotiated transactions concurrently with the offering of the 2027 Notes (ii) $74.4 million was used to repurchase shares of common stock at $60.78 per share, the closing price of the stock on May 24, 2022; and (iii) $36.8 million, in addition to the proceeds from the 2027 Warrant Transactions, was used to fund the cost of the 2027 Call Spread Transactions.

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The 2027 Notes will be convertible into cash up to the aggregate principal amount of the notes to be converted and in respect of the remainder, if any, of the Company’s obligation in excess of the aggregate principal amount of the notes being converted, pay or deliver, as the case may be, cash, shares of the Company’s common stock (“Common Stock”) or a combination thereof, at the Company’s election, at an initial conversion rate of 12.9041 shares of Common Stock per $1,000 principal amount of Notes (which is equivalent to an initial conversion price of approximately $77.49 per share).

For more information on this transaction, refer to Note 9, "Obligations" within the Notes to the Consolidated Financial Statements included in Part II, Item 8 of this Form 10-K.

Restructuring Activities

On June 10, 2021, we announced that, as a result of a strategic review of our research and innovation priorities, we commenced the process of a collective economic layoff in which we proposed a reduction in force of our research and innovation unit. Additionally, in October 2021, we expanded our restructuring efforts to include general and administrative functions largely centered in the U.S. All impacted employees have been provided notification of termination.

During 2022, we recognized $3.3 million restructuring expenses, including a $2.4 million asset impairment, $0.3 million severance and other benefits, and $0.5 million outside services and other associated costs, which are included within “Restructuring Activities” in the consolidated statement of income. The $2.4 million impairment, comprised of $2.0 million of right-of-use assets and $0.4 million of property and equipment, was due to the abandonment of portions of three of our leased properties resulting from the Company’s evaluation of its current office space footprint and its expected needs going forward.

The Company does not anticipate further significant restructuring charges, however these charges are estimated based on information available at the time such charges are recorded. Due to the inherent uncertainty involved in estimating restructuring expenses, actual amounts incurred for such activities may differ from amounts initially estimated.

Impact of Inflation and Market Factors

We have been actively monitoring the impact of the current macroeconomic environment in the U.S. and globally characterized by increasing inflation, supply chain issues, rising interest rates, labor shortages, and the potential for a recession. These market factors, as well as the impacts of the Russia and Ukraine conflict, have not had a material impact on our business to date. However, if these conditions continue or worsen, they could have an adverse effect on our operating results and our financial condition.

Impact of COVID-19 Pandemic

In March 2020, the World Health Organization categorized the novel coronavirus ("COVID-19") as a pandemic, and it continues to significantly impact the United States and the rest of the world. We continue to believe that our strategic strengths, including talent, our strong balance sheet, stable revenue base, and the strength of our patent portfolio, allows us to weather a rapidly changing marketplace. Fixed-fee royalties accounted for 90% of our recurring revenues in 2022. These fixed-fee revenues are not directly affected by our related licensees’ success in the market or the general economic climate. To that end, in fiscal year 2022, we did not experience a significant impact on our contracted revenue due to COVID-19.

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Comparability of Financial Results

When comparing our 2022 financial results against the financial results of other periods, the following items should be taken into consideration:

•Our 2022 revenue includes $53.9 million of non-recurring revenue primarily related to seven new patent license agreements signed in 2022 and new connected automobile license agreements.

•In 2022, we repurchased approximately $273.8 million in aggregate principal amount of our 2024 Notes, which resulted in the recognition of a $11.2 million loss on the extinguishment of debt, which was included within “Other (expense) income, net” in the condensed consolidated statement of income. For more information on this transaction, refer to Note 9, "Obligations" within the Notes to the Consolidated Financial Statements included in Part II, Item 8 of this Form 10-K.

•In 2022, we incurred $1.5 million of one-time supplemental compensation costs driven by licensing successes achieved during 2022.

•In 2022, we recognized $3.3 million of restructuring expenses including a $2.4 million asset impairment, $0.3 million of severance and other benefits, and $0.5 million of associated outside services and other costs. These costs resulted from our restructuring activities as described in Note 20, "Restructuring Activities" within the Notes to the Consolidated Financial Statements included in Part II, Item 8 of this Form 10-K.

•In 2022, "Other (expense) income, net" includes a $1.3 million net loss resulting from observable price changes in orderly transactions of our long-term strategic investments.

Critical Accounting Policies and Estimates

Our consolidated financial statements are based on the selection and application of GAAP, which require us to make estimates and assumptions that affect the amounts reported in both our consolidated financial statements and the accompanying notes. Future events and their effects cannot be determined with absolute certainty. Therefore, the determination of estimates requires the exercise of judgment. Actual results could differ from these estimates and any such differences may be material to the financial statements. Our significant accounting policies are described in Note 2, "Summary of Significant Accounting Policies and New Accounting Guidance" within the Notes to the Consolidated Financial Statements included in Part II, Item 8 of this Form 10-K. We believe the accounting policies that are of particular importance to the portrayal of our financial condition and results and that may involve a higher degree of complexity and judgment in their application compared to others are those relating to revenue recognition, compensation, and income taxes. If different assumptions were made or different conditions existed, our financial results could have been materially different.

Revenue Recognition

We derive the vast majority of our revenue from patent licensing. The timing and amount of revenue recognized from each licensee depend upon a variety of factors, including the specific terms of each agreement and the nature of the deliverables and obligations. Such agreements are often complex and include multiple performance obligations. These agreements can include, without limitation, performance obligations related to the settlement of past patent infringement liabilities, patent and/or know-how licensing royalties on covered products sold by licensees, access to a portfolio of technology as it exists at a point in time, and access to a portfolio of technology at a point in time along with promises to provide any technology updates to the portfolio during the term.

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In accordance with US GAAP, we use a five-step model to achieve the core underlying principle that an entity should recognize revenue to depict the transfer of goods or services to customers at an amount that the entity expects to be entitled to in exchange for those goods or services. These steps include (1) identifying the contract with the customer, (2) identifying the performance obligations, (3) determining the transaction price, (4) allocating the transaction price to the performance obligations, and (5) recognizing revenue as the entity satisfies the performance obligation(s). Additionally, we have elected to utilize certain practical expedients in the application of ASC 606. In evaluating the presence of a significant financing component in our agreements, we utilize the practical expedient to exclude any contracts wherein the gap between payment by our customers and the delivery of our performance obligation is less than one year. We have also elected to utilize the practical expedient related to costs of obtaining a contract where an entity may recognize the incremental costs of obtaining a contract as an expense when incurred if the amortization period of the asset that the entity otherwise would have recognized is one year or less. Timing of revenue recognition may differ significantly from the timing of invoicing to customers. Contract assets are included in accounts receivable and represent unbilled amounts expected to be received from customers in future periods, where the revenue recognized to date exceeds the amount billed, and right to payment is subject to the underlying contractual terms. Contract assets are classified as long-term assets if the payments are expected to be received more than one year from the reporting date. Contract assets due within less than twelve months of the balance sheet date are included within accounts receivable in our consolidated balance sheets. Contract assets due more than twelve months after the balance sheet date are included within other non-current assets.

For certain patent license agreements or other contractual arrangements, the amount of consideration that we will receive is uncertain. In such cases, we estimate and recognize licensing revenues only when we have a contract, as defined in the revenue recognition guidance. Such estimates are only recognized to the extent it is probable that a significant reversal of cumulative revenues recognized will not occur. We analyze the risk of a significant revenue reversal considering both the likelihood and magnitude of the reversal and, if necessary, constrain the amount of estimated revenues recognized in order to mitigate this risk, which may result in recognizing revenues less than amounts we expect we are most likely to receive. These aforementioned estimates may require significant judgment.

Patent License Agreements

Upon signing a patent license agreement, we provide the licensee permission to use our patented inventions in specific applications. We account for patent license agreements in accordance with the guidance indicated above.

Certain patent license agreements contain revenue from non-financial sources in the form of patents received from the customer. Under our patent license agreements, we typically receive one or a combination of the following forms of payment as consideration for permitting our licensees to use our patented inventions in their applications and products

Consideration for Past Patent Royalties

Consideration related to a licensee’s product sales from prior periods may result from a negotiated agreement with a licensee that utilized our patented inventions prior to signing a patent license agreement with us or from the resolution of a disagreement or arbitration with a licensee over the specific terms of an existing license agreement. We may also receive consideration for past patent royalties in connection with the settlement of patent litigation where there was no prior patent license agreement. In each of these cases, we record the consideration as revenue as prescribed by the five-step model.

Fixed-Fee Agreements

Fixed-fee license agreements include fixed, non-refundable royalty payments that fulfill the licensee’s obligations to us under a patent license agreement for a specified time period or for the term of the agreement for specified products, under certain patents or patent claims, for sales in certain countries, or a combination thereof - in each case for a specified time period (including for the life of the patents licensed under the agreement).

Dynamic fixed-fee license agreements contain a single performance obligation that represents ongoing access to a portfolio of technology over the license term, since our promise to transfer to the licensee access to the portfolio as it exists at inception of the license, along with promises to provide any technology updates to the portfolio during the term, are not separately identifiable. Upon entering a new agreement, we allocate the transaction price to the performance obligations delivered at signing (e.g. our existing patent portfolio) and future performance obligations (e.g. the technology updates). We use a time-based input method of progress to determine the timing of revenue recognition, and as such we recognize the future deliverables on a straight-line basis over the term of the agreement. We utilize the straight-line method as we believe that it best depicts efforts expended to develop and transfer updates to the customer evenly throughout the term of the agreement.

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Static fixed-fee license agreements are fixed-price contracts that generally do not include updates to technology we create after the inception of the license agreement or in which the customer does not stand to substantively benefit from those updates during the term. Although we have few static fixed-fee license agreements, we generally satisfy our performance obligations under such agreements at contract signing, and, as such, revenue is recognized at that time.

Variable Agreements

Upon entering a new variable patent license agreement, the licensee typically agrees to pay royalties or license fees on licensed products sold during the term of the agreement. We utilize the sales- or usage- based royalty exception for these agreements and recognize revenues during the contract term when the underlying sale or usage occurs. Our licensees under variable agreements provide us with quarterly royalty reports that summarize their sales of covered products and their related royalty obligations to us. We typically receive these royalty reports subsequent to the period in which our licensees’ underlying sales occurred. As a result, we are required to estimate revenues and recognize sales-based royalties on such licensed products in the period in which the associated sales occur, considering all relevant information (historical, current and forecasted) that is reasonably available to us. Estimating licensees’ quarterly royalties prior to receiving the royalty reports requires us to make assumptions and judgments related to forecasted trends and growth rates used to estimate our licensees’ sales, which could have an impact on the amount of revenue we report on a quarterly basis. As a result of recognizing revenues in the period in which the licensees’ sales occur using estimates, adjustments to revenues are required in subsequent periods to reflect changes in estimates as new information becomes available, primarily resulting from actual amounts reported by our licensees.

Technology Solutions

Technology solutions revenue consists primarily of revenue from royalty payments, software licenses, and engineering services. The nature of these contracts and timing of payments vary. We recognize revenue from royalty payments and license agreements using the same methods described above under our policy for recognizing revenue from patent license agreements. We recognize revenue from engineering services using the percentage of completion method.

Patent Sales

During 2022, we determined patent sales are no longer a part of the company’s on-going central operations and therefore will no longer be accounted for as revenue. We had no patent sales during 2022 or 2021 and $0.6 million of patent revenues during 2020.

Agreements with Multiple Performance Obligations

During 2022, we signed four new fixed-fee agreements that had multiple performance obligations. Consistent with the revenue recognition policies disclosed above, we (1) identified the contract with the customer, (2) identified the performance obligations, (3) determined the transaction price, (4) allocated the transaction price to the performance obligations, and (5) recognized revenue as we satisfy the performance obligations. We allocated the transaction price to each performance obligation for accounting purposes using our best estimate of the term and value. The process for determining the value of the standalone selling prices of identified performance obligations in dynamic fixed-fee license agreements requires the exercise of significant judgment when evaluating the valuation methods and assumptions, including the assumed royalty rates, projected sales volumes, discount rate, identification of comparable market transactions which are not directly observable and other relevant factors. Changes in any of a number of these assumptions could have had a substantial impact on the relative fair value assigned to each performance obligation for accounting purposes. These inputs and assumptions represent management's best estimates at the time of the transaction.

The impact that a five percent change in the aggregate amount allocated to past patent royalties under these agreements would have had on 2022 revenue is summarized in the following table (in thousands):

[[GREPCENT_TABLE]]
[["","Change in amount allocated"],["Allocation to past patent royalties","+5%","","-%5"],["Change in Revenue","$","2,669","","","$","(2,669)"]]
[[/GREPCENT_TABLE]]

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Revenue from Non-financial Sources

During 2022, 2021 and 2020, approximately 4%, 5% and 7%, respectively, of our total revenue was based on the estimated fair value of patents. The process for determining the value of revenue from non-financial sources requires estimating the fair value of patents received. We estimated the fair value of the patents in the above transactions using one of, or a combination of, an analysis of comparable market transactions (the market approach), a discounted cash flow analysis (the income approach) and/or by quantifying the amount of money required to replace the future service capability of the assets (the cost approach). For the market approach, judgment was applied as to which market transactions were most comparable to the transaction. For the income approach, the inputs and assumptions used to develop these estimates were based on a market participant perspective and included estimates of projected royalties, discount rates, economic lives and income tax rates, among others. For the cost approach, we utilized the historical cost of assets of similar technologies to determine the estimated replacement cost, including research, development, testing and patent application fees. The development of a number of these inputs and assumptions requires a significant amount of management judgment and is based upon a number of factors, including identification of comparable market transactions, assumed royalty rates, projected sales volumes, economic lives of the patents and other relevant factors. Changes in any of a number of these assumptions could have had a substantial impact on the fair value assigned to the patents for accounting purposes. These inputs and assumptions represent management's best estimates at the time of the transaction.

The impact that a five-percent change in the estimated aggregate value of the patents acquired would have had on 2022 revenue, patent amortization and pre-tax income is summarized in the following table (in thousands).

[[GREPCENT_TABLE]]
[["","Change in estimate"],["Estimated value of patents acquired in connection with PLAs","+5%","","-%5"],["Revenue","$","925","","","$","(925)"],["Less: Patent amortization","1,054","","","(1,054)"],["Pre-tax income","$","(129)","","","$","129"]]
[[/GREPCENT_TABLE]]

Compensation Programs

We use a variety of compensation programs to attract, retain and motivate our employees, and to align employee compensation more closely with company performance. These programs include, but are not limited to, short-term incentives tied to performance goals, cash awards to inventors for filed patent applications and patent issuances, and long-term incentives in the form of stock option awards, time-based restricted stock unit (“RSU”) awards, performance-based RSU awards and cash awards, noting equity awards are granted pursuant to the terms and conditions of our Equity Plans (as defined within the Notes to the Consolidated Financial Statements included in Part II, Item 8 of this Form 10-K). Our long-term incentives, including equity awards, typically include annual equity or cash award grants with three to five year vesting periods; as a result, in any one year, we are typically accounting for at least three active cycles.

The aggregate amount of performance compensation expense we record in a period, under both short-term and long-term incentive compensation programs, requires the input of subjective assumptions and is a function of our estimated progress toward performance goals at both the beginning and the end of the period. Our estimated progress toward goals under performance equity grants is based on meeting a minimum confidence level of achievement in accordance with accounting rules for share-based compensation. Due to the binary nature of patent license agreements, performance awards with milestone goals are typically not expensed until the goal has been achieved. Achievement rates can vary by performance cycle and from period to period, resulting in variability in our compensation expense.

We account for compensation costs associated with share-based compensation based on the fair value of the instruments issued. The estimated value of stock options includes assumptions around expected life, stock volatility and dividends. For stock options considered to be “plain vanilla” options, the Company estimates the expected term based on the simplified method as prescribed by Staff Accounting Bulletin Topic 14. The simplified method was used because the Company does not believe it has sufficient historical exercise data to provide a reasonable basis for the expected term of its grants. In all periods, our policy has been to set the value of RSUs awards equal to the value of our underlying common stock on the date of measurement. For grants with graded vesting, we amortize the associated unrecognized compensation cost using an accelerated method. For grants that cliff vest, we amortize the associated unrecognized compensation cost on a straight-line basis over their vesting term.

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In the event of canceled awards, we adjust compensation expense recognized to date as they occur. Tax windfalls and shortfalls related to the tax effects of employee share-based compensation are included in our tax provision. On the consolidated statements of cash flows, tax windfalls and shortfalls related to employee share-based compensation awards are included within operating activities and cash paid to tax authorities for shares withheld are included within financing activities. The inclusion of windfalls and shortfalls in the tax provision could increase our earnings volatility between periods. Tax windfalls and shortfalls related to share-based compensation was shortfalls of $0.4 million for the year ended 2022, and windfalls for the years ended 2021 and 2020 of $0.8 million and $0.2 million, respectively.

The below table summarizes our supplemental compensation expense for 2022, 2021 and 2020, in thousands:

[[GREPCENT_TABLE]]
[["","2022","","2021","","2020"],["Short-term incentive compensation","$","24,341","","","$","18,820","","","$","16,166"],["Time-based awards (a)","10,521","","","8,528","","","6,668"],["Performance-based awards (a)","8,155","","","17,933","","","2,347"],["Other share-based compensation","4,901","","","3,962","","","2,580"],["Total supplemental compensation expense","$","47,918","","","$","49,243","","","$","27,761"]]
[[/GREPCENT_TABLE]]

(a) For 2022, 2021 and 2020, approximately 8%, 7%, and 12%, respectively, of the aggregate expense associated with time-based and performance-based awards related to cash awards.

Income Taxes

Income taxes are accounted for under the asset and liability method. Under this method, deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, and operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in the consolidated statement of income in the period in which the change was enacted. A valuation allowance is recorded to reduce the carrying amounts of deferred tax assets if management has determined that it is more likely than not that such assets will not be realized.

In addition, the calculation of tax liabilities involves significant judgment in estimating the impact of uncertainties in the application of complex tax laws. We are subject to examinations by the U.S. IRS and other taxing jurisdictions on various tax matters, including challenges to various positions we assert in our filings. In the event that the IRS or another taxing jurisdiction levies an assessment in the future, it is possible the assessment could have a material adverse effect on our consolidated financial condition or results of operations.

The financial statement recognition of the benefit for an uncertain tax position is dependent upon the benefit being more likely than not to be sustainable upon audit by the applicable tax authority. If this threshold is met, the tax benefit is then measured and recognized at the largest amount that is greater than 50 percent likely of being realized upon ultimate settlement. In the event that the IRS or another taxing jurisdiction levies an assessment in the future, it is possible the assessment could have a material adverse effect on our consolidated financial condition or results of operations.

Between 2014 and 2022, we paid approximately $134.6 million in foreign taxes to foreign governments that have tax treaties with the U.S., for which we have claimed foreign tax credits against our U.S. tax obligations, and for which the tax treaty procedures are still open. It is possible that as a result of tax treaty procedures, the U.S. government may reach an agreement with the related foreign governments that will result in a partial refund of foreign taxes paid with a related reduction in our foreign tax credits. Due to foreign currency fluctuations, any such agreement could result in foreign currency gain or loss.

On November 8, 2019, the Company received notification that its request for competent authority pertaining to Article 25 (Mutual Agreement Procedure) of the United States-Republic of Finland Income Tax Convention had been reviewed by the IRS and an agreement has been reached (the “Finland Competent Authority Proceeding”). As a result of this agreement, the Company does not anticipate any tax consequences.

New Accounting Guidance

Refer to Note 2, "Summary of Significant Accounting Policies and New Accounting Guidance" within the Notes to the Consolidated Financial Statements included in Part II, Item 8 of this Form 10-K for a discussion of recently issued accounting guidance.

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Legal Proceedings

We are routinely involved in disputes associated with enforcement and licensing activities regarding our intellectual property, including litigations, arbitrations and other proceedings. These litigations, arbitrations and other proceedings are important means to enforce our intellectual property rights. We are a party to other disputes and legal actions not related to our intellectual property, but also arising in the ordinary course of our business. Refer to Note 11, “Litigation and Legal Proceedings,” to the Notes to Consolidated Financial Statements included below in Part II, Item 8 of this Form 10-K for a description of our material legal proceedings.

FINANCIAL POSITION, LIQUIDITY AND CAPITAL RESOURCES

Our primary sources of liquidity are cash, cash equivalents and short-term investments, as well as cash generated from operations. We believe we have the ability to obtain additional liquidity through debt and equity financings. From time to time, we may engage in a variety of transactions to augment our liquidity position as our business dictates and to take advantage of favorable interest rate environments or other market conditions, including the incurrence or issuance of debt and the refinancing or restructuring of existing debt. Based on our past performance and current expectations, we believe our available sources of funds, including cash, cash equivalents and short-term investments and cash generated from our operations, will be sufficient to finance our operations, capital requirements, debt obligations, existing stock repurchase program, dividend program, and other contractual obligations discussed below in both the short-term over the next twelve months, and the long-term beyond twelve months.

Cash, cash equivalents, restricted cash and short-term investments

As of December 31, 2022 and December 31, 2021, we had the following amounts of cash, cash equivalents, restricted cash and short-term investments (in thousands):

[[GREPCENT_TABLE]]
[["","December 31, 2022","","December 31, 2021","","Increase / (Decrease)"],["Cash and cash equivalents","$","693,479","","","$","706,282","","","$","(12,803)"],["Restricted cash included within prepaid and other current assets","9,682","","","5,861","","","3,821"],["Restricted cash included within other non-current assets","\u2014","","","1,081","","","(1,081)"],["Short-term investments","508,298","","","235,345","","","272,953"],["Total cash, cash equivalents, restricted cash and short-term investments","$","1,211,459","","","$","948,569","","","$","262,890"]]
[[/GREPCENT_TABLE]]

The net increase in cash, cash equivalents, restricted cash and short-term investments was attributable to cash provided by operating activities of $286.0 million and cash provided by financing activities of $18.6 million. These increases were partially offset by cash used in investing activities, excluding sales and purchases of short-term investments of $42.8 million. Cash used in investing activities primarily related to net purchases of short-term investments, as well as capital investments for patents and fixed assets. Cash provided by financing activities primarily related net proceeds from the debt refinancing, partially offset by dividend payments and repurchases of common stock. Refer to the sections below for further discussion of these items.

Cash flows from operations

We generated the following cash flows from our operating activities in 2022 and 2021 (in thousands):

[[GREPCENT_TABLE]]
[["","For the Year Ended December 31,"],["","2022","","2021","","Increase / (Decrease)"],["Cash flows provided by operating activities","$","286,039","","","$","130,392","","","$","155,647"]]
[[/GREPCENT_TABLE]]

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Our cash flows provided by operating activities are principally derived from cash receipts from patent license agreements, offset by cash operating expenses and income tax payments. The $155.6 million change in net cash provided by operating activities was primarily driven by higher cash receipts, largely attributable to new or renewed patent license agreements, including the Apple patent license agreement discussed above. Additionally, lower cash operating expenses benefiting from the cost-savings actions taken in 2021 contributed to the increase. The table below sets forth the significant items comprising our cash flows provided by operating activities during the years ended December 31, 2022 and 2021 (in thousands):

[[GREPCENT_TABLE]]
[["","For the Year Ended December 31,"],["","2022","","2021","","Increase / (Decrease)"],["Cash Receipts:"],["Patent royalties","$","509,517","","","$","364,348","","","$","145,169"],["Technology solutions","308","","","3,893","","","(3,585)"],["Total cash receipts","509,825","","","368,241","","","141,584"],["Cash Outflows:"],["Cash operating expenses (a)","(204,153)","","","(234,046)","","","29,893"],["Income taxes paid, net of refunds (b)","(6,805)","","","(23,091)","","","16,286"],["Total cash outflows","(210,958)","","","(257,137)","","","46,179"],["Other working capital adjustments","(12,828)","","","19,288","","","(32,116)"],["Cash flows provided by operating activities","$","286,039","","","$","130,392","","","$","155,647"]]
[[/GREPCENT_TABLE]]

(a) Cash operating expenses include operating expenses less depreciation of fixed assets, amortization of patents, and non-cash compensation.

(b) Income taxes paid include foreign withholding taxes.

Cash provided by or used in investing and financing activities

Net cash used in investing activities in 2022 was $314.7 million, a $494.3 million change from $179.6 million net cash provided by investing activities in 2021.

During 2022, we purchased $272.0 million of short-term marketable securities, net of sales, and capitalized $42.8 million of patent costs and property and equipment purchases. During 2021, we sold $216.6 million of short-term marketable securities, net of purchases, capitalized $35.9 million of patent costs and property and equipment purchases, acquired $2.4 million of patents, and received $1.4 million of net cash receipts from the sale of one of our long-term strategic investments. The increase in net purchases of short-term marketable securities was largely driven by higher cash receipts discussed above, as well as more favorable market conditions.

Net cash provided by financing activities for 2022 was $18.6 million, a $93.1 million change from net cash used in financing activities of $74.5 million in 2021. This change was primarily attributable to net proceeds of $138.9 million from the debt refinancing, partially offset by a $44.4 million increase in share repurchases.

Other

Our combined short-term and long-term deferred revenue balance at December 31, 2022 was $426.6 million, a increase of $115.5 million from December 31, 2021. Based on current license agreements, we expect the amortization of dynamic fixed-fee royalty payments to reduce the December 31, 2022 deferred revenue balance by $189.1 million over the next twelve months.

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Convertible Notes

Refer to Note 9, "Obligations" within the Notes to the Consolidated Financial Statements included in Part II, Item 8 of this Form 10-K for definitions of capitalized terms used below.

Our 2027 and 2024 Notes, which for purposes of this discussion are also referred to as the "Convertible Notes", are included in the dilutive earnings per share calculation using the if-converted method. Under the if-converted method, we must assume that conversion of convertible securities occurs at the beginning of the reporting period. The Convertible Notes are convertible into cash up to the aggregate principal amount of the Convertible Notes to be converted and any remaining obligation may be settled in cash, shares of the Company’s common stock or a combination thereof. As the principal amount must be paid in cash and only the conversion spread is settled in shares, we only include the net number of incremental shares that would be issued upon conversion. We must calculate the number of shares of our common stock issuable under the terms of the Convertible Notes based on the average market price of our common stock during the applicable reporting period and include that number in the total diluted shares figure for the period.

At the time we issued the Convertible Notes, we entered into the 2027 Call Spread Transactions and 2024 Call Spread Transactions that together were designed to have the economic effect of reducing the net number of shares that will be issued in the event of conversion of the Convertible Notes by, in effect, increasing the conversion price of the Convertible Notes from our economic standpoint. However, under GAAP, since the impact of the 2027 Note Hedge Transactions and 2024 Note Hedge Transactions (together, the "Note Hedge Transactions") is anti-dilutive, we exclude from the calculation of fully diluted shares the number of shares of our common stock that we would receive from the counterparties to these agreements upon settlement.

During periods in which the average market price of our common stock is above the applicable conversion price of the Convertible Notes ($77.49 per share for the 2027 Notes and $81.29 per share for the 2024 Notes as of December 31, 2022) or above the strike price of the warrants ($106.37 per share for the 2027 Warrant Transactions and $109.43 per share for the 2024 Warrant Transactions as of December 31, 2022), the impact of conversion or exercise, as applicable, would be dilutive and such dilutive effect is reflected in diluted earnings per share. As a result, in periods where the average market price of our common stock is above the conversion price or strike price, as applicable, under the if-converted method, we calculate the number of shares issuable under the terms of the Convertible Notes and the warrants based on the average market price of the stock during the period, and include that number in the total diluted shares outstanding for the period.

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Under the if-converted method, changes in the price per share of our common stock can have a significant impact on the number of shares that we must include in the fully diluted earnings per share calculation. As described in Note 7, "Obligations," the Convertible Notes are convertible into cash up to the aggregate principal amount of the Convertible Notes to be converted and any remaining obligation may be in cash, shares of the Company’s common stock or a combination thereof ("net share settlement"). Assuming net share settlement upon conversion, the following tables illustrate how, based on the $460.0 million aggregate principal amount of the 2027 Notes and the $126.2 million aggregate principal amount of the 2024 Notes outstanding as of December 31, 2022, and the approximately 5.9 million warrants related to the 2027 Notes and the 1.6 million warrants remaining related to the 2024 Notes, outstanding as of the same date, changes in our stock price would affect (i) the number of shares issuable upon conversion of the Convertible Notes, (ii) the number of shares issuable upon exercise of the warrants subject to the 2027 Warrant Transactions and 2024 Warrant Transactions (together, the "Warrant Transactions"), (iii) the number of additional shares deemed outstanding with respect to the Convertible Notes, after applying the if-converted method, for purposes of calculating diluted earnings per share ("Total If-Converted Method Incremental Shares"), (iv) the number of shares of our common stock deliverable to us upon settlement of the Note Hedge Transactions and (v) the number of shares issuable upon concurrent conversion of the Convertible Notes, exercise of the warrants subject to the Warrant Transactions, and settlement of the Note Hedge Transactions:

[[GREPCENT_TABLE]]
[["2027 Notes"],["Market Price Per Share","Shares Issuable Upon Conversion of the 2027 Notes","Shares Issuable Upon Exercise of the 2027 Warrant Transactions","Total Treasury Stock Method Incremental Shares","Shares Deliverable to InterDigital upon Settlement of the 2027 Note Hedge Transactions","Incremental Shares Issuable (a)"],["$80","186","\u2014","186","(186)","\u2014"],["$85","524","\u2014","524","(524)","\u2014"],["$90","825","\u2014","825","(825)","\u2014"],["$95","1,094","\u2014","1,094","(1,094)","\u2014"],["$100","1,336","\u2014","1,336","(1,336)","\u2014"],["$105","1,555","\u2014","1,555","(1,555)","\u2014"],["$110","1,754","196","1,950","(1,754)","196"],["$115","1,936","445","2,381","(1,936)","445"],["$120","2,103","674","2,777","(2,103)","674"],["$125","2,256","885","3,141","(2,256)","885"]]
[[/GREPCENT_TABLE]]

[[GREPCENT_TABLE]]
[["2024 Notes"],["Market Price Per Share","Shares Issuable Upon Conversion of the 2024 Notes","Shares Issuable Upon Exercise of the 2024 Warrant Transactions","Total Treasury Stock Method Incremental Shares","Shares Deliverable to InterDigital upon Settlement of the 2024 Note Hedge Transactions","Incremental Shares Issuable (a)"],["$85","68","\u2014","68","(68)","\u2014"],["$90","150","\u2014","150","(150)","\u2014"],["$95","224","\u2014","224","(224)","\u2014"],["$100","290","\u2014","290","(290)","\u2014"],["$105","351","\u2014","351","(351)","\u2014"],["$110","405","8","413","(405)","8"],["$115","455","75","530","(455)","75"],["$120","501","137","638","(501)","137"],["$125","543","193","736","(543)","193"],["$130","582","246","828","(582)","246"]]
[[/GREPCENT_TABLE]]

(a) Represents incremental shares issuable upon concurrent conversion of convertible notes, exercise of warrants and settlement of the hedge agreements.

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Contractual Obligations

The following table summarizes our contractual obligations as of December 31, 2022 (in thousands):

[[GREPCENT_TABLE]]
[["","Payments Due by Period"],["","Total","","Less Than 1 year","","1-3 Years","","3-5 Years","","Thereafter"],["2024 and 2027 Notes(a)","$","586,174","","","$","\u2014","","","$","126,174","","","$","460,000","","","$","\u2014"],["Contractual interest payments on the 2024 and 2027 Notes(a)","76,235","","","18,623","","","33,462","","","24,150","","","\u2014"],["Operating lease obligations","28,724","","","4,772","","","8,086","","","7,817","","","8,049"],["Defined benefit plan obligations (b)","3,111","","","254","","","146","","","391","","","2,320"],["Purchase obligations (c)","11,697","","","11,697","","","\u2014","","","\u2014","","","\u2014"],["Total contractual obligations","$","705,941","","","$","35,346","","","$","167,868","","","$","492,358","","","$","10,369"]]
[[/GREPCENT_TABLE]]

(a)Refer to Note 9, “Obligations,” within the Notes to the Consolidated Financial Statements included in Part II, Item 8 of this Form 10-K for details of our 2024 Notes and 2027 Notes.

(b)Refer to Note 10, "Commitments," within the Notes to the Consolidated Financial Statements included in Part II, Item 8 of this Form 10-K for details of our defined benefit plan obligations. Estimated future benefit payments included above are through 2030.

(c)Purchase obligations consist of agreements to purchase goods and services that are legally binding on us, as well as accounts payable. Our consolidated balance sheet as of December 31, 2022 includes a $16.1 million non-current liability for uncertain tax positions. The future payments related to uncertain tax positions have not been presented in the table above due to the uncertainty of the amounts and timing of cash settlement with the taxing authorities.

As discussed above we believe our available sources of funds, including cash, cash equivalents and short-term investments and cash generated from our operations, will be sufficient to finance these contractual obligations discussed below in both the short-term over the next twelve month, and the long-term beyond twelve months.

As of December 31, 2022, we have recorded long-term debt of $30.7 million related to the Technicolor Patent Acquisition. Additionally, we are subject to a revenue-sharing arrangement with Technicolor resulting from the Technicolor Acquisitions. There is no liability associated with the revenue-share agreement at December 31, 2022, as there are no minimum or maximum payments under the revenue-sharing arrangement, and, except in certain circumstances, the arrangement continues through December 31, 2038. Refer to Note 9, "Obligations," within the Notes to the Consolidated Financial Statements included in Part II, Item 8 of this Form 10-K for further information. Due to the uncertainty regarding the timing and amount of future payments related to these items, the amounts are excluded from the contractual obligations table above.

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RESULTS OF OPERATIONS

2022 Compared with 2021

Revenues

The following table compares 2022 revenues to 2021 revenues (in thousands):

[[GREPCENT_TABLE]]
[["","For the Year Ended December 31,"],["","2022","","2021","","Total Increase/(Decrease)"],["Recurring revenues:"],["Smartphone","$","351,064","","","$","315,098","","","$","35,966","","","11","%"],["CE, IoT/Auto","51,717","","","31,721","","","19,996","","","63","%"],["Other","1,107","","","4,881","","","(3,774)","","","(77)","%"],["Total recurring revenues","403,888","","","351,700","","","52,188","","","15","%"],["Non-recurring revenues a","53,906","","","73,709","","","(19,803)","","","(27)","%"],["Total revenues","$","457,794","","","$","425,409","","","$","32,385","","","8","%"]]
[[/GREPCENT_TABLE]]

(a)    Non-recurring revenues are comprised of past patent royalties and revenues from static agreements.

Total revenues of $457.8 million, which includes both recurring and non-recurring revenues, increased 8% from $425.4 million in 2021 primarily due to recurring revenue increasing 15% to $403.9 million, compared to $351.7 million in 2021. The company increased recurring revenue in both its Smartphone (up 11%) and CE, IoT/Auto markets (up 63%) as a result of twenty new agreements signed over the last seven quarters.

Non-recurring revenues decreased $19.8 million primarily attributable to revenues recognized on nine previously disclosed agreements signed in 2021. Non-recurring revenues in 2022 were primarily attributable to seven of the above disclosed license agreements signed in 2022 and revenues from new connected automobile license agreements.

In each of 2022 and 2021, 70% of our total revenues were attributable to companies that individually accounted for 10% or more of our total revenues. In 2022 and 2021, the following licensees or customers accounted for 10% or more of our total revenues:

[[GREPCENT_TABLE]]
[["","For the Year Ended December 31,"],["","2022","","2021"],["Customer A","30%","","28%"],["Customer B","17%","","18%"],["Customer C","13%","","14%"],["Customer D","10%","","10%"]]
[[/GREPCENT_TABLE]]

46

Operating Expenses

The following table summarizes the change in operating expenses by category (in thousands):

[[GREPCENT_TABLE]]
[["","For the Year Ended December 31,"],["","2022","","2021","","Increase/(Decrease)"],["Research and portfolio development","$","185,202","","","$","200,484","","","$","(15,282)","","","(8)","%"],["Licensing","71,419","","","64,625","","","6,794","","","11","%"],["General and administrative","47,377","","","61,217","","","(13,840)","","","(23)","%"],["Restructuring activities","3,280","","","27,877","","","(24,597)","","","(88)","%"],["Total operating expenses","$","307,278","","","$","354,203","","","$","(46,925)","","","(13)","%"]]
[[/GREPCENT_TABLE]]

Operating expenses decreased 13% to $307.3 million in 2022 from $354.2 million in 2021. The $46.9 million decrease in total operating expenses was primarily due to increase/(decrease) in the following items (in thousands):

[[GREPCENT_TABLE]]
[["","Increase/(Decrease)"],["Restructuring activities","$","(24,598)"],["Personnel-related costs","(19,569)"],["Consulting and outside services","(6,986)"],["Revenue share","(6,620)"],["Intellectual property enforcement and non-patent litigation","10,152"],["Other","696"],["Total increase in operating expenses","$","(46,925)"]]
[[/GREPCENT_TABLE]]

The $46.9 million decrease in operating expenses was primarily due to reduction in non-recurring costs, which were driven by a $6.6 million decrease in revenue share costs primarily attributable to a patent license agreement signed in third quarter 2021, and a $24.6 million decrease in restructuring costs associated with cost savings measures taken in 2021. These measures also helped drive both the $19.6 million decrease in personnel-related costs and the $7.0 million decrease in consulting and outside services. These decreases were offset by a $10.2 million increase in intellectual property enforcement costs, primarily driven by the Oppo and Lenovo litigations.

Research and portfolio development expense:  Research and portfolio development expense decreased by $15.3 million primarily resulting from the above-noted decreases in personnel-related costs and consulting costs.

Licensing expense:  The $6.8 million increase in licensing expense primarily resulted from the above noted increase in intellectual property enforcement costs. This increase was partially offset by the above noted decrease in revenue share costs.

General and administrative expense:  The $13.8 million decrease in general and administrative expense was primarily due to the above-noted decreases in personnel-related costs and consulting costs.

Restructuring Activities:  Restructuring expenses associated with our overall restructuring plan decreased due to the plan being substantially complete in 2022. For more information on the restructuring activities refer to Note 20, "Restructuring Activities" within the Notes to the Consolidated Financial Statements included in Part II, Item 8 of this Form 10-K.

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Non-Operating Expense

The following table compares 2022 non-operating expense to 2021 non-operating expense (in thousands):

[[GREPCENT_TABLE]]
[["","For the Year Ended December 31,"],["","2022","","2021","","Change"],["Interest expense","$","(29,496)","","","$","(25,225)","","","$","(4,271)","","","(17)","%"],["Interest and investment income","14,452","","","1,690","","","12,762","","","755","%"],["Loss on extinguishment of long-term debt","(11,190)","","","\u2014","","","(11,190)","","","100","%"],["Other","(6,719)","","","9,885","","","(16,604)","","","(168)","%"],["Total non-operating expense","$","(32,953)","","","$","(13,650)","","","$","(19,303)","","","(141)","%"]]
[[/GREPCENT_TABLE]]

Interest expense increased $4.3 million due to the interest on the 2027 Notes issued during second quarter 2022. The $12.8 million increase in interest and investment income was primarily due to market conditions driving higher yields on the Company's short-term investments. The $11.2 million loss on extinguishment of long-term debt was related to the partial repurchase of the 2024 Notes, as described further in Note 9, "Obligations" within the Notes to the Consolidated Financial Statements included in Part II, Item 8 of this Form 10-K.

The change in Other was primarily due to fair value adjustments of our investments resulting in a $3.7 million net loss in 2022, compared to a $9.1 million net gain in 2021 and due to foreign currency translation losses arising from euro translation of our foreign subsidiaries of $3.9 million in 2022, compared to $3.0 million in 2021. Additionally, we recognized a $1.9 million gain on a contract termination in 2021.

Income Taxes

In 2022, based on the statutory federal tax rate net of discrete federal and state taxes, our effective tax rate is 21.7%. as compared to an effective tax of 27.0% in 2021. In both periods, the effective tax rate was impacted by losses in certain jurisdictions where the Company presently has recorded a valuation allowance against the related tax benefit.  Excluding this valuation allowance, our effective tax rate would have been 19.3% and 16.7% in 2022 and 2021, respectively. 

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FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K contains forward-looking statements within the meaning of Section 21E of the Exchange Act. Such statements include certain information in “Part I, Item 1. Business” and “Part II, Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations” and other information regarding our current beliefs, plans and expectations, including, without limitation, the matters set forth below. Words such as "believe," “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “forecast,” "goal," "could," "would," "should," "if," "may," "might," "future," "target," "trend," "seek to," "will continue," "predict," "likely," "in the event," variations of any such words or similar expressions contained herein are intended to identify such forward-looking statements. Forward-looking statements are made on the basis of management’s current views and assumptions and are not guarantees of future performance. Although the forward-looking statements in this Form 10-K reflect the good faith judgment of our management, such statements can only be based on facts and factors currently known by us. Consequently, forward-looking statements concerning our business, results of operations and financial condition are inherently subject to risks and uncertainties. We caution readers that actual results and outcomes could differ materially from those expressed in or anticipated by such forward-looking statements due to a variety of factors, including those set forth below:

•unanticipated delays, difficulties or accelerations in the execution of patent license agreements;

•our ability to leverage our strategic relationships and secure new patent license agreements on acceptable terms;

•our ability to enter into sales and/or licensing partnering arrangements for certain of our patent assets;

•our ability to enter into partnerships with leading inventors and research organizations and identify and acquire technology and patent portfolios that align with our roadmap;

•our ability to commercialize our technologies and enter into customer agreements;

•the failure of the markets for our current or new technologies to materialize to the extent or at the rate that we expect;

•unexpected delays or difficulties related to the development of our technologies;

•changes in our interpretations of, and assumptions and calculations with respect to the impact on us of, the 2017 Tax Cuts and Jobs Act, as well as further guidance that may be issued regarding such act;

•risks related to the potential impact of new accounting standards on our financial position, results of operations or cash flows;

•failure to accurately forecast the impact of our restructuring activities on our financial statements and our business;

•the resolution of current legal proceedings, including any awards or judgments relating to such proceedings, additional legal proceedings, changes in the schedules or costs associated with legal proceedings or adverse rulings in such proceedings;

•the timing and impact of potential administrative and legislative matters;

•changes or inaccuracies in market projections;

•our ability to obtain liquidity through debt and equity financings;

•the potential effects that macroeconomic uncertainty could have on our financial position, results of operations and cash flows;

•changes in our business strategy;

•changes or inaccuracies in our expectations with respect to royalty payments by our customers; and

•risks related to our assumptions and application of relevant accounting standards.

You should carefully consider these factors as well as the risks and uncertainties outlined in greater detail in Part I, Item 1A, of this Form 10-K before making any investment decision with respect to our common stock. These factors, individually or in the aggregate, may cause our actual results to differ materially from our expected and historical results. You should understand that it is not possible to predict or identify all such factors. In addition, you should not place undue reliance on the forward-looking statements contained herein, which are made only as of the date of this Form 10-K. We undertake no obligation to revise or update publicly any forward-looking statement for any reason, except as otherwise required by law.

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