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Share repurchases (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 1 Months Ended |
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Apr. 28, 2021 | Dec. 10, 2020
Equity, Class of Treasury Stock [Line Items] |  |
Stock Repurchase Program, Authorized Amount |  | $ 2,000,000
Terminated Remaining Prior Share Repurchases Authorized, Amount |  | $ 329,302
Subsequent Event |  |
Equity, Class of Treasury Stock [Line Items] |  |
Repurchase of common stock (in shares) | 991 |
Treasury Stock, Value, Acquired, Cost Method | $ 108,892 |
Treasury Stock Acquired, Average Cost Per Share | $ 109.91 |
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ 1,498,730 |

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