Common Stock Repurchase Programs - Accelerated Share Repurchase Agreements (Details) - USD ($) $ / shares in Units, $ in Thousands											12 Months Ended
	Nov. 22, 2021	Nov. 01, 2021	Sep. 27, 2021	Aug. 31, 2021	Aug. 02, 2021	Jul. 30, 2021	May 17, 2021	Apr. 30, 2021	Sep. 09, 2019	Jul. 30, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share Repurchases [Line Items]
Amount paid											$ 375,038	$ 0	$ 399,999
May 2018 Repurchase Program
Share Repurchases [Line Items]
Common stock repurchased and retired (shares)													800,000
Cost per share (in dollars per share)													$ 264.93
May 2018 Repurchase Program | July 30, 2019
Share Repurchases [Line Items]
Amount paid										$ 200,000
Common stock repurchased and retired (shares)									1,132,464
Cost per share (in dollars per share)									$ 176.61
May 2018 Repurchase Program | April 30, 2021
Share Repurchases [Line Items]
Amount paid								$ 100,000
Common stock repurchased and retired (shares)						171,322
Cost per share (in dollars per share)						$ 583.70
May 2021 Repurchase Program | May 17, 2021
Share Repurchases [Line Items]
Amount paid							$ 100,000
Common stock repurchased and retired (shares)				161,707
Cost per share (in dollars per share)				$ 618.40
May 2021 Repurchase Program | August 2, 2021
Share Repurchases [Line Items]
Amount paid					$ 75,000
Common stock repurchased and retired (shares)			109,239
Cost per share (in dollars per share)			$ 686.91
May 2021 Repurchase Program | November 1, 2021
Share Repurchases [Line Items]
Amount paid		$ 100,000
Common stock repurchased and retired (shares)	150,031
Cost per share (in dollars per share)	$ 666.53