CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Operating activities:
Net loss	$ (144,326)	$ (78,994)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	26,756	10,949
Stock-based compensation	36,450	17,659
Amortization of debt discount and debt issuance costs	1,868	3,974
Amortization of right-of-use assets	3,418	683
Write-down for excess and obsolete inventories	11,147	7,044
Loss on disposal of assets	1,976	498
Loss on debt extinguishment, net	7,434	7,612
Impairment of investment	3,000
Other	2,721	116
Changes in operating assets and liabilities:
Accounts receivable	(10,141)	(7,484)
Inventories	(27,746)	(18,192)
Prepaid expenses and other current assets	1,258	(2,930)
Other assets	11	(51)
Accounts payable	757	7,130
Accrued expenses and other current liabilities	6,983	8,812
Lease liability	150	(1,312)
Other long-term liabilities	4,852	(1,926)
Net cash used in operating activities	(73,432)	(46,412)
Investing activities:
Purchases of property and equipment	(68,544)	(23,131)
Acquisition of business, net of cash acquired	(62,133)
Purchase of OCEANE	(21,097)
Cash paid for investments	(3,000)
Cash paid for acquisition of intangible assets		(755)
Cash received from sale of assets		27
Settlement of forward contract	(2,988)
Net cash used in investing activities	(157,762)	(23,859)
Financing activities:
Proceeds from common stock offering, net	131,828	107,698
Proceeds from issuance of convertible notes	316,250
Payment of debt issuance costs	(10,028)
Net cash (paid) received from common stock exercises	(5,963)	3,341
Borrowings under lines of credit		42,455
Repayments under lines of credit		(56,615)
Purchase of capped calls	(39,866)
Repurchase of common stock	(25,000)
Proceeds from issuance of term debt, net		34,008
Repayment of Squadron Medical Term Loan	(45,000)
Repayment of Inventory Financing Agreement	(8,088)
Other	(2,167)	(58)
Net cash provided by financing activities	311,966	130,829
Effect of exchange rate changes on cash	(1,289)	94
Net increase in cash and cash equivalents	79,483	60,652
Cash and cash equivalents at beginning of year	107,765	47,113
Cash and cash equivalents at end of year	187,248	107,765
Supplemental disclosure of cash flow information:
Cash paid for interest	5,027	6,330
Cash paid for income taxes	223	190
Supplemental disclosure of noncash investing and financing activities:
Common stock warrants issued with term loan draw		2,974
Common stock issued for partial extinguishment of debt		33,807
PPP Loan Forgiveness	4,271
Common stock issued for development of intangible assets		123
Purchases of property and equipment in accounts payable	2,577	$ 3,527
Financed inventory	4,015
Recognition of lease liability	$ 23,403