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Stock-based Compensation - Restricted Stock and Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Weighted Average Grant Date Fair Value
Compensation expense	$ 11,431	$ 12,204
Restricted Stock
Changes in unvested restricted stock
Unvested restricted shares, beginning of period (in shares)	628,732
Issued (in shares)	815,627
Vested (in shares)	(154,834)
Forfeited (in shares)	(56,307)
Unvested restricted shares, end of period(in shares)	1,233,218		628,732
Weighted Average Grant Date Fair Value
Balance, beginning of period	$ 41.28
Issued (in dollars per share)	17.30
Vested (in dollars per share)	52.88
Forfeited (in dollars per share)	33.23
Balance, ending of period	$ 24.33		$ 41.28
Unrecognized stock-based compensation expense	$ 19,100
Period for recognition	2 years 10 months 24 days
Performance based awards | Employees
Changes in unvested restricted stock
Issued (in shares)	259,367
Stock options
Weighted Average Grant Date Fair Value
Unrecognized stock-based compensation expense	$ 34,400
Period for recognition	3 years 1 month 6 days
Changes in unvested stock options
Outstanding, beginning of period (in shares)	3,016,085
Granted (in shares)	1,136,614
Exercised (in shares)	(12,573)
Cancelled (in shares)	(220,043)
Outstanding, end of period (in shares)	3,920,083		3,016,085
Exercisable (in shares)	1,483,822
Outstanding, beginning of period (in dollars per share)	$ 34.24
Granted (in dollars per share)	17.29
Exercised (in dollars per share)	17.31
Cancelled (in dollars per share)	30.30
Outstanding, end of period (in dollars per share)	29.60		$ 34.24
Exercisable (in dollar per share)	$ 29.34
Remaining contractual life	7 years 10 months 24 days		7 years 6 months
Exercisable, remaining contractual life	6 years 6 months
Aggregate intrinsic value	$ 3,954,769		$ 5,052,469
Exercisable, aggregated intrinsic value	$ 2,023,433

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