Basis of Presentation (Policies)	3 Months Ended
Basis of Presentation (Policies)	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The accompanying unaudited, condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and, accordingly, do not include all of the detailed schedules, information and notes necessary to state fairly the financial condition, results of operations and cash flows in conformity with United States generally accepted accounting principles (“GAAP”). The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP for year-end financial statements. Therefore, these financial statements should be read in conjunction with the financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022 (our “2022 Form 10-K”) as filed with the Securities and Exchange Commission (“SEC”) on February 15, 2023. Definitions of capitalized terms not defined herein appear within our 2022 Form 10-K. The results of operations for interim periods are not necessarily indicative of the results to be expected for the entire year. We have one reportable segment.
Estimates	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities as of the date of the financial statements, as well as the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates.
Reclassifications	Certain reclassifications have been made to prior year amounts to conform to the current year presentation. During 2022, the Company made reclassifications between the operating expenses lines on the consolidated income statement in order to more clearly reflect the Company’s investments to create and protect the value of our innovations. The Company grouped research and portfolio related costs within the line "Research and portfolio development", previously referred to as "Development", which resulted in reclassifying certain portfolio related costs out of the "Licensing" line, previously referred to as "Patent administration and licensing", and into "Research and portfolio development." The impact of this reclassification was $26.6 million for the three months ended March 31, 2022. Additionally, the previous "Selling, general, and administrative" line is now referred to as "General and administrative". Beginning in third quarter 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 catch-up revenues 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.
New Accounting Guidance	No new accounting pronouncement issued or effective during the quarter had or is expected to have a material impact on our condensed consolidated interim financial statements.