Common Share Repurchases (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023	Apr. 19, 2023
Treasury Stock Transactions, Excluding Value of Shares Reissued [Abstract]
Number of shares repurchased under share repurchase authorization (in shares)	2,200,000	4,400,000
Cost of shares repurchased under share repurchase authorization	$ 400,000	$ 800,000
Average cost per share repurchased under share repurchase authorization (in dollars per share)	$ 180.13	$ 181.68
Number of shares acquired to cover tax withholding costs and exercise costs (in shares)	820	300,000
Cost of shares acquired to cover tax withholding costs and exercise costs	$ 146	$ 62,000
Share repurchase authorization			$ 5,000,000
Remaining capacity under share repurchase authorization	$ 6,200,000	$ 6,200,000