Equity - Share Repurchase Program and Share Repurchase Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Oct. 31, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Jul. 31, 2021	Apr. 30, 2021	Feb. 28, 2021	Dec. 31, 2015
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount									$ 1,200,000
Stock repurchase program, additional authorized amount						$ 800,000	$ 500,000	$ 300,000
Stock repurchase program, remaining authorized repurchase amount		$ 776,300		$ 776,300
Number of shares repurchased (in shares)		1,255,218	17,167	6,624,634	440,873
Cash paid for repurchased shares		$ 355,458	$ 2,255	$ 1,438,808	$ 76,117
Treasury stock, average price paid per share (in dollars per share)		$ 290.54	$ 131.35	$ 219.00	$ 149.97
Open Market Purchases
Equity, Class of Treasury Stock [Line Items]
Cash paid for repurchased shares				$ 8,000	$ 10,000
Open Market Purchases | Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Cash paid for repurchased shares	$ 20,000