Stockholders' Deficit - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended		29 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Feb. 28, 2019
Equity, Class of Treasury Stock [Line Items]
Purchase of Company common stock				$ 26,527,000
Reissuance of treasure stock (in shares)			596,645
Reissuance of treasury stock	$ 3,027,000	$ (1,000)	$ 22,511,000	$ 20,523,000
Treasury Stock
Equity, Class of Treasury Stock [Line Items]
Purchase of Company common stock (in shares)				460,000
Purchase of Company common stock				$ 26,527,000
Reissuance of treasure stock (in shares)	58,000	13,000	597,000	381,000
Reissuance of treasury stock	$ 2,279,000	$ 599,000	$ 24,052,000	$ 17,156,000
2019 Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount						$ 200,000,000
Purchase of Company common stock (in shares)	0	0	0	459,899	1,697,597
Purchase of Company common stock					$ 129,800,000
Remaining dollar value of shares that may be repurchased	$ 70,200,000		$ 70,200,000		$ 70,200,000