Condensed Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Impact of adoption	Preferred Stock	Common Stock	Additional Paid-In Capital	Additional Paid-In Capital Impact of adoption	Treasury Stock	Retained Earnings	Retained Earnings Impact of adoption
Beginning balance at Dec. 31, 2020	$ 10,691
Increase (Decrease) in Temporary Equity [Roll Forward]
Accretion adjustments of redeemable noncontrolling interest to redemption value	473
Net income / (loss) attributable to common stockholders	(280)
Ending balance at Mar. 31, 2021	10,884
Balance (in shares) at Dec. 31, 2020			0	49,631,000			147,000
Balance at Dec. 31, 2020	467,752		$ 0	$ 496	$ 405,831		$ (5,149)	$ 66,574
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued in connection with equity-based plans (in shares)				173,000
Common stock issued in connection with equity-based plans	$ 1,989			$ 2	1,987
Purchases of treasury stock (in shares)	0
Stock-based compensation expense	$ 7,888				7,888
Equity component of convertible senior notes, net	56,515				56,515
Accretion adjustments of redeemable noncontrolling interest to redemption value	(473)				(473)
Net income / (loss) attributable to common stockholders	14,830							14,830
Balance (in shares) at Mar. 31, 2021			0	49,804,000			147,000
Balance at Mar. 31, 2021	$ 548,501		$ 0	$ 498	471,748		$ (5,149)	81,404
Accounting Standards Update [Extensible List]	Accounting Standards Update 2020-06 [Member]
Beginning balance at Dec. 31, 2020	$ 10,691
Ending balance at Dec. 31, 2021	12,888
Balance (in shares) at Dec. 31, 2020			0	49,631,000			147,000
Balance at Dec. 31, 2020	467,752		$ 0	$ 496	405,831		$ (5,149)	66,574
Balance (in shares) at Dec. 31, 2021			0	50,407,000			147,000
Balance at Dec. 31, 2021	$ 613,167	$ (46,543)	$ 0	$ 504	498,979	$ (56,515)	$ (5,149)	118,833	$ 9,972
Accounting Standards Update [Extensible List]	Accounting Standards Update 2020-06 [Member]
Increase (Decrease) in Temporary Equity [Roll Forward]
Accretion adjustments of redeemable noncontrolling interest to redemption value	$ 2,569
Net income / (loss) attributable to common stockholders	(176)
Ending balance at Mar. 31, 2022	15,281
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued in connection with equity-based plans (in shares)				85,000
Common stock issued in connection with equity-based plans	$ 1,080			$ 1	1,079
Purchases of treasury stock (in shares)	354,123						354,000
Purchase of treasury stock	$ (23,331)						$ (23,331)
Stock-based compensation expense	12,110				12,110
Accretion adjustments of redeemable noncontrolling interest to redemption value	(2,569)				(2,569)
Net income / (loss) attributable to common stockholders	9,079							9,079
Balance (in shares) at Mar. 31, 2022			0	50,492,000			501,000
Balance at Mar. 31, 2022	$ 562,993		$ 0	$ 505	$ 453,084		$ (28,480)	$ 137,884