Convertible Senior Notes - Capped Call and Common Stock Forward (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended		3 Months Ended		9 Months Ended
	May 18, 2020	Nov. 30, 2020	Aug. 31, 2020	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2021	Jan. 31, 2021	Dec. 31, 2020	May 31, 2020	May 29, 2020	Mar. 31, 2018
Capped Call and Common Stock Forward
Closing stock price on grant date		$ 22.25	$ 10.25
Common stock shares issued		43,700,000	35,276,250
Common Stock Forward
Capped Call and Common Stock Forward
Net cost incurred						$ 27,500
Number of shares settled				0	0	0	8,100,000
3.75% Convertible Senior Notes
Capped Call and Common Stock Forward
Interest rate (as a percent)	3.75%			3.75%	3.75%	3.75%	3.75%	3.75%			3.75%	3.75%
Principal amount	$ 200,000			$ 197,278	$ 15,200	$ 197,278	$ 15,200				$ 212,500	$ 12,500
Closing stock price on grant date				$ 21.01		$ 21.01
Convertible senior notes				$ 849,000		$ 849,000
3.75% Convertible Senior Notes | Capped Call
Capped Call and Common Stock Forward
Capped call options amount	$ 16,200
Cap price	$ 6.7560
Premium (as a percent)	60.00%
Closing stock price on grant date	$ 4.11
5.5% Convertible Senior Notes
Capped Call and Common Stock Forward
Interest rate (as a percent)								5.50%	5.50%	5.50%	5.50%		5.50%
Principal amount									$ 200	$ 33,500			$ 100,000
5.5% Convertible Senior Notes | Common Stock Forward
Capped Call and Common Stock Forward
Common stock shares issued						14,397,906