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Share repurchases (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended
	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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Amount of stock repurchase plan authorized.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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