Stockholders' Equity - Repurchase Program (Details) - USD ($) $ in Thousands	3 Months Ended				65 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jul. 27, 2021
Class of Stock [Line Items]
Shares repurchased	$ 246,203	$ 170,382	$ 32,230	$ 530,237
Program
Class of Stock [Line Items]
Shares repurchased (in shares)					16,184,095
Shares repurchased					$ 3,500,000
Program | Common Stock | Subsequent Event
Class of Stock [Line Items]
Increase in authorized amount to be repurchased						$ 1,000,000
Stock repurchase program, approved amount						5,100,000
Remaining authorized repurchase amount						$ 1,600,000