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Shareholders' Equity - Additional Information (Details)		12 Months Ended
	Jun. 01, 2020 shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2018 USD ($) $ / shares shares	Jun. 12, 2020 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock conversion terms		Upon completion of the Mergers, each share of common stock of Xperi was converted into the right to receive one fully paid and non-assessable share of Company Common Stock. Further upon completion of the Mergers, each share of TiVo Common Stock was converted into the right to receive 0.455 fully paid and non-assessable shares of the Company Common Stock (the “Exchange Ratio”), in addition to cash in lieu of any fractional shares of the Company Common Stock.
Dividends declared, per share | $ / shares		$ 0.50	$ 0.80	$ 0.80
Stock repurchase program, authorized amount | $					$ 150,000,000.0
Treasury stock, total repurchase during period (in shares)		4,900,000
Treasury stock, average price of share repurchased (in dollars per share) | $ / shares		$ 14.25
Treasury stock, total cost of repurchased stock | $		$ 70,100,000
Stock repurchase program, remaining amount available for repurchase | $		$ 79,900,000
Tax withholding on restricted stock units (in shares)		700,000	200,000	200,000
Tax withholding on restricted stock units | $		$ 10,500,000	$ 4,500,000	$ 3,400,000
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for grant (in shares)		2,000,000.0
Expiration period		24 months
Maximum employee subscription rate		100.00%
Purchase price of common stock, percent		85.00%
Maximum employee subscription amount | $		$ 25,000
Rolling expiration period		24 months
Performance Shares | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance awards, percentage of grant available to vest		0.00%
Performance Shares | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance awards, percentage of grant available to vest		200.00%
Xperi Corporation Seventh Amended and Restated 2003 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for grant (in shares)	0
2020 EIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period		10 years
Vesting period		4 years
Share based compensation full value awards counted against shares available for issuance ratio		1.5
Number of shares reserved for issuance		8,000,000
2020 EIP | Time-based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		4 years
2020 EIP | Employee Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for grant (in shares)		3,100,000
Assumed Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for grant (in shares)		7,600,000
Expiration period	7 years
Vesting period	4 years
Assumed Plans | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Xperi
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, conversion ratio	1
TiVo
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, conversion ratio	0.455

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