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Stock-Based Compensation - Additional Information (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Oct. 31, 2021 USD ($) shares | Sep. 30, 2021 USD ($) incentivePlan | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) incentivePlan shares | Sep. 30, 2020 USD ($) shares
Share-based Payment Arrangement [Abstract] |  |  |  |  |
Number of equity incentive plans | incentivePlan |  | 2 |  | 2 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Non-cash stock compensation expense |  | $ 21,642 | $ 21,431 | $ 64,252 | $ 58,323
Performance Stock Units |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Non-cash stock compensation expense |  |  |  | $ 15,400 | $ 17,400
Shares granted (in shares) | shares |  |  |  | 174,000 | 436,000
Number of common shares issued in connection with performance units (in shares) | shares |  |  |  | 500,000 | 500,000
Restricted Stock Units to be Settled in Common Stock |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Fair value of restricted stock, vested |  |  |  | $ 121,700 | $ 48,800
Non-cash stock compensation expense |  |  |  | 48,800 | $ 41,000
Unrecognized compensation cost, related to unvested RSUs to be settled in common stock, total |  | $ 101,000 |  | $ 101,000 |
Expected weighted average period to recognize compensation cost on RSUs to be settled in common stock |  |  |  | 2 years 2 months 15 days |
Shares granted (in shares) | shares |  |  |  | 945,000 | 2,008,000
Restricted Stock Units to be Settled in Common Stock | Subsequent Event |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Shares granted (in shares) | shares | 700,000 |  |  |  |
Fair market value at date of grant | $ 72,300 |  |  |  |
Restricted Stock Units to be Settled in Common Stock | Subsequent Event | Minimum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period for RSUs to be settled in stock | 5 years |  |  |  |
Restricted Stock Units to be Settled in Common Stock | Subsequent Event | Maximum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting period for RSUs to be settled in stock | 10 years |  |  |  |

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