Debt - Schedule of Debt Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total long-term debt, gross amount	$ 367,762	$ 316,250	$ 316,250
Total long-term debt, debt discount and issuance costs	(8,778)	(3,347)	(4,406)
Total long-term debt, carrying amount	358,984	312,903	311,844
Senior Notes | 2029 Convertible Notes
Debt Instrument [Line Items]
Total long-term debt, gross amount	230,000	0	0
Total long-term debt, debt discount and issuance costs	(7,351)	0	0
Total long-term debt, carrying amount	222,649	0	0
Senior Notes | 2025 Convertible Notes
Debt Instrument [Line Items]
Total long-term debt, gross amount	103,373	172,500	172,500
Total long-term debt, debt discount and issuance costs	(1,181)	(2,172)	(2,762)
Total long-term debt, carrying amount	102,192	170,328	169,738
Senior Notes | 2024 Convertible Notes
Debt Instrument [Line Items]
Total long-term debt, gross amount	34,389	143,750	143,750
Total long-term debt, debt discount and issuance costs	(246)	(1,175)	(1,644)
Total long-term debt, carrying amount	$ 34,143	$ 142,575	$ 142,106