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Shareholders' Equity (Details) - USD ($) shares in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Apr. 26, 2021
Class of Stock [Line Items] |  |  |  |  |
Dividends | $ 36,814,000 | $ 32,447,000 | $ 74,139,000 | $ 65,056,000 |
Payments for repurchase of common stock |  |  | $ 353,703,000 | $ 95,676,000 |
Increase in share repurchase authorization |  |  |  |  | $ 1,000,000,000.0
Share repurchase plan |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Share repurchases (shares) |  |  | 6.9 | 2.8 |
Payments for repurchase of common stock |  |  | $ 353,700,000 | $ 95,700,000 |
Remaining value of stock repurchase programs authorization | $ 1,000,000,000.0 |  | 1,000,000,000.0 |  |
Shares withheld to pay taxes |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |
Payments for repurchase of common stock |  |  | $ 10,600,000 | $ 14,900,000 |

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