Notes Payable - General Information (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		12 Months Ended
	Aug. 31, 2019	Jun. 30, 2015	Dec. 31, 2019	Jun. 30, 2022	Dec. 31, 2021	Apr. 15, 2019
Notes Payable
Payments for convertible note hedges	$ 25,200	$ 21,100
Proceeds from partial termination of convertible note hedges and note hedge warrants	3,200
Convertible Note Hedge
Notes Payable
Conversion price (in dollars per share)						$ 14.51
2.25% Convertible Senior Notes due 2022 | Convertible Senior Notes
Notes Payable
Aggregate principal amount of notes issued		335,700			$ 120,699
Net proceed received		324,000
Fees and expenses		$ 11,700
Stated interest rate (as a percent)		2.25%
Debt redeemed/repurchased	215,000			$ 120,700
Debt redemption/repurchase price	$ 227,300
Loss on extinguishment of debt			$ 23,400
Initial debt issuance costs			$ 2,800