Stockholders' Equity - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Aug. 06, 2020	Dec. 31, 2017	Feb. 29, 2012
Class of Stock [Line Items]
Number of remaining shares available for purchase (in shares)		7,063,690
Repurchase of shares of common stock		$ 47,741
Number of shares purchased from plan participants (in shares)		251,946	111,451	71,077
3.25% Convertible Notes | Convertible Debt
Class of Stock [Line Items]
Conversion shares issued as extinguishment cost on 3.25% convertible notes (in shares)		3,050,850
2012 Repurchase Program
Class of Stock [Line Items]
Maximum number of shares authorized to be repurchased (in shares)								5,000,000
Number of remaining shares available for purchase (in shares)							2,873,920
Repurchased shares, aggregate amount			$ 204,600
Shares repurchased under the program (in shares)			1,140,819	197,870	600,000
Repurchase of shares of common stock			$ 87,500	$ 16,000	$ 42,500
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)		445,711	2,490,599
Repurchase of shares of common stock		$ 47,700	$ 177,800
2020 Repurchase Program | Subsequent Event
Class of Stock [Line Items]
Shares repurchased under the program (in shares)	554,289
Repurchase of shares of common stock	$ 58,700