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Shareholders' Equity - Additional Information (Details) |  | 12 Months Ended |
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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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