Share repurchases Share Repurchase Table (Details) - Open Market Purchases - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock (in shares)	2,104	2,949
Treasury Stock, Value, Acquired, Cost Method	$ 233,318	$ 322,333
Treasury Stock Acquired, Average Cost Per Share	$ 110.90	$ 109.28

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

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Number of shares that have been repurchased during the period and are being held in treasury.

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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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