Stock-Based Compensation - Restricted Common Stock and Restricted Stock Units (Details) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($) employee $ / shares shares	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) employee $ / shares shares	Sep. 30, 2021 USD ($)
Weighted average grant date fair value
Stock-based compensation expense, including discontinued operations (in dollars) | $	$ 17,236	$ 8,011	$ 32,537	$ 28,962
Restricted stock and restricted stock units
Weighted average grant date fair value
Stock-based compensation expense, including discontinued operations (in dollars) | $	13,061	$ 6,447	26,129	$ 22,846
Unrecognized compensation expense (in dollars) | $	$ 30,976		$ 30,976
Weighted average period expected to be recognized			2 years 4 months 24 days
Restricted stock and restricted stock units | Minimum
Stock-Based Compensation
Vesting period			1 year
Restricted stock and restricted stock units | Maximum
Stock-Based Compensation
Vesting period			4 years
Restricted stock, performance based restricted stock and restricted stock units
Number of shares
Outstanding at beginning of period (in shares)			2,196,566
Granted (in shares)			1,935,883
Vested (in shares)			(1,224,471)
Forfeited (in shares)			(676,723)
Outstanding at end of period (in shares)	2,231,255		2,231,255
Weighted average grant date fair value
Outstanding at beginning of period (in dollars per share) | $ / shares			$ 40.19
Granted (in dollars per share) | $ / shares			4.44
Vested (in dollars per share) | $ / shares			34.32
Forfeited (in dollars per share) | $ / shares			16.40
Outstanding at end of period (in dollars per share) | $ / shares	$ 19.61		$ 19.61
Restricted stock | Named executive officers
Weighted average grant date fair value
Accelerated vesting expense | $	$ 8,143		$ 8,143
Number of retired employees with accelerated vesting related to separation agreements | employee	2		2
Restricted stock units
Weighted average grant date fair value
Awards vested but not yet issued	14,222		14,222