Repurchases of Common Stock (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Equity [Abstract]
Shares repurchased in the open market (in shares)	453	274	1,764	892
Shares acquired through employee surrender for statutory tax withholding (in shares)	0	1	21	29
Total shares repurchased (in shares)	453	275	1,785	921
Cost of shares repurchased in the open market	$ 166,423	$ 183,315	$ 742,661	$ 510,937
Cost of shares for employee surrenders	162	515	10,552	15,501
Total cost of shares	$ 166,585	$ 183,830	$ 753,213	$ 526,438
Average cost per share - open market repurchases (in USD per share)	$ 367.55	$ 668.33	$ 421.12	$ 572.10
Average cost per share - employee surrenders (in USD per share)	387.07	688.35	502.26	547.90
Average cost per share - total (in USD per share)	$ 367.56	$ 668.38	$ 422.07	$ 571.36