Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Supplemental disclosure of non-cash transactions:
Right-of-use asset obtained in exchange for new operating lease obligations	$ (5,654)
Non-cash investing and financing activities
Net increase in accrued fixed assets	21
Reconciliation of cash, cash equivalents and restricted cash included in the condensed consolidated balance sheets:
Cash and cash equivalents	113,195	$ 68,329
Restricted cash	6,981	7,014
Total cash, cash equivalents and restricted cash	120,176	75,343
Supplemental non-cash disclosure:
Issuance of common stock to noteholders in connection with repurchase of convertible notes	209,391
Exchange for existing 2023 and 2026 convertible notes		(421,200)
Exchange for new 2026 secured convertible notes		382,400
Issuance of common stock to financial advisor in connection with convertible notes exchange		10,000
Recognition of conversion option upon issuance of 2026 secured convertible notes		150,704
Extinguishment of conversion options upon exchange and repurchase of 2023 convertible notes and exchange of 2026 convertible notes		$ (39,146)
Supplementary cash flow data:
Income taxes paid	$ 455