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Shareholders' Equity - Additional Information (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Dec. 31, 2020
Accelerated Share Repurchases [Line Items] |  |
Treasury stock shares (in shares) | 18,243,000 | 16,685,000
Fair value of common stock repurchased | $ 661,358,000 | $ 591,338,000
Business combination, shares issued | 106,586,000 |
Business combination, total value | $ 4,900,000 |
Second Accelerated Share Repurchase Agreement | Maximum |  |
Accelerated Share Repurchases [Line Items] |  |
Shares repurchased, authorized amount | $ 100,000,000.0 |
Accelerated Share Repurchase Agreement |  |
Accelerated Share Repurchases [Line Items] |  |
Treasury stock shares (in shares) | 1,557,815 |
Fair value of common stock repurchased | $ 70,000,000.0 |
Treasury stock, average cost per share | $ 44.95 |
Stock repurchase program, remaining authorized repurchase amount | $ 336,200,000 |

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