Condensed Statement of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash Flows from Operating Activities:
Net loss	$ (55,245)	$ (39,466)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,155	916
Stock-based compensation	5,121	878
Loss on asset disposal	13
Accretion of debt discount		289
Non-cash operating lease expense	4,227
Revaluation of warrants	(2,662)	(26)
Foreign currency transaction (gain) loss	38	(79)
Revaluation of convertible debt		1,865
Changes in operating assets and liabilities:
Accounts receivable	4,560	(239)
Prepaid expenses and other current assets	743	534
Other assets	(207)	(161)
Operating lease liabilities	(4,300)
Accounts payable	(513)	(267)
Accrued expenses and other current liabilities	(690)	488
Net cash used in operating activities	(47,760)	(35,268)
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchases of property and equipment	(437)	(537)
Net cash used in investing activities	(437)	(537)
Cash Flows from Financing Activities:
Proceeds from convertible loan		200
Proceeds from issuance of redeemable convertible preferred stock		15,000
Proceeds from issuance of common stock	118	423
Payment of deferred financing costs		(695)
Tax-related withholding of common stock	(473)
Net cash used in financing activities	(355)	14,928
Effect of exchange rate on cash, cash equivalents and restricted cash	(7)	(26)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	(48,559)	(20,903)
Cash, cash equivalents and restricted cash, beginning of period	87,546	63,946
Cash, cash equivalents and restricted cash, end of period	38,987	43,043
Supplemental Cash Flow Elements [Abstract]
Cash paid for interest	38	1,083
Supplemental disclosure of noncash operating and financing activities:
Property and equipment, net included in accounts payable	501	91
Property and equipment, net included in accrued expenses and other current liabilities	658
Operating lease ROU assets obtained in exchange for lease obligations	937
Non-cash interest		325
Gain on extinguishment of convertible loan		36,782
Deferred transaction costs included in accounts payable		1,291
Deferred Transaction Costs Included In Accrued Expenses And Other Current Liabilities		$ 1,030