CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Cash Flows From Operating Activities
Net loss	$ (104,904)	$ (100,960)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	13,037	6,654
Deferred income taxes	(505)	(8,901)
Stock-based compensation	12,540	10,608
Change in fair value of convertible promissory notes	0	30,722
Accretion of discount on short-term investments	(688)	0
Other	721	301
Preferred stock warrant liability expense	0	4,124
Changes in operating assets and liabilities:
Receivables under development arrangements	(148)	230
Prepaid expenses and other current assets	2,382	(7,636)
Operating lease right-of-use assets and liabilities	(640)	3,256
Other long-term assets	13	126
Accounts payable	(533)	1,574
Accrued expenses and other liabilities	(1,707)	581
Deferred revenue	(907)	(1,277)
Net cash used in operating activities	(81,339)	(60,598)
Cash Flows From Investing Activities
Purchases of property and equipment	(16,175)	(38,047)
Acquisitions, net of cash acquired	(8,000)	(28,130)
Investment in equity securities	0	(1,200)
Investment in short-term investments	(108,590)	0
Proceeds from maturities of short-term investments	5,000	0
Proceeds from sales of property and equipment	133	0
Proceeds from property insurance settlements	650	0
Net cash used in investing activities	(126,982)	(67,377)
Cash Flows From Financing Activities
Proceeds from issuance of redeemable convertible preferred units and stock, net of issuance costs	0	4,944
Proceeds from issuance of long-term debt	12,031	0
Principal payments on long-term debt	(4,651)	(1,600)
Principal payments on finance lease obligations	(2,799)	(2,547)
Proceeds from issuance of common stock, net of issuance costs	656	210,396
Proceeds from issuance of convertible promissory notes	0	125,000
Net cash provided by financing activities	5,237	336,193
Net (decrease) increase in cash, cash equivalents, and restricted cash	(203,084)	208,218
Cash, cash equivalents and restricted cash - Beginning of year	279,926	71,708
Cash, cash equivalents, and restricted cash - End of period	76,842	279,926
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest	895	652
Supplemental Disclosure of Non-Cash Investing and Financing Activities
Property and equipment purchased under finance lease	0	4,313
Right-of-use assets obtained in exchange for operating lease obligation	111	3,330
Cash paid for amounts included in the measurement of operating lease liabilities	2,299	1,631
Property and equipment purchases included in accounts payable	$ 123	$ 5,565