Stockholders' Equity - Narrative (Details) - USD ($)		1 Months Ended		12 Months Ended
	Dec. 31, 2020	Jul. 31, 2016	Nov. 30, 2014	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Aug. 06, 2020	Feb. 29, 2012
Class of Stock [Line Items]
Number of remaining shares available for purchase (in shares)	7,509,401			7,509,401
Number of shares purchased from plan participants (in shares)				111,451
Series A Preferred Stock
Class of Stock [Line Items]
Exchange ratio (in shares)			20.4319
Issuance of common stock due to preferred stock exchange (in shares)			235,665
Series B Preferred Stock
Class of Stock [Line Items]
Exchange ratio (in shares)			31.8094
Issuance of common stock due to preferred stock exchange (in shares)				0	0	10,530
Incremental fair value recognized			$ 6,300,000
Additional share-based compensation recorded				$ 0	$ 0	$ 1,900,000
Integrated Global Concepts, Inc
Class of Stock [Line Items]
Shares acquired and subsequently retired (in shares)		935,231
2012 Repurchase Program
Class of Stock [Line Items]
Maximum number of shares authorized to be repurchased (in shares)								5,000,000
Shares repurchased under the program (in shares)				1,140,819	197,870	600,000
Aggregate cost of shares repurchased	$ 204,600,000			$ 87,500,000	$ 16,000,000.0	$ 42,500,000
2020 Repurchase Program
Class of Stock [Line Items]
Maximum number of shares authorized to be repurchased (in shares)							10,000,000
Shares repurchased under the program (in shares)				2,490,599
Aggregate cost of shares repurchased				$ 177,800,000