Unaudited Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Total product, rental, and service revenue	$ 33,328	$ 40,747	$ 110,538	$ 117,500
Costs and operating expenses:
General and administrative	12,513	11,916	42,757	35,098
Sales and marketing	7,256	5,278	20,045	15,601
Research and development	5,402	3,425	14,397	10,634
Asset impairment charges	15,485	0	15,485	69,900
Intangible asset amortization	1,356	2,513	4,266	8,236
Change in fair value of contingent consideration	(1,580)	2,346	(1,778)	(3,348)
Total operating expenses	62,111	52,487	168,208	213,770
Operating loss	(28,783)	(11,740)	(57,670)	(96,270)
Other (expense) income:
Change in fair value of investments	0	697	0	697
Gain on settlement of Global Cooling escrow	0	0	5,115	0
Interest expense, net	(476)	(15)	(1,305)	(250)
Other income	242	142	1,027	270
Total other (expense) income, net	(234)	824	4,837	717
Loss before income tax (expense) benefit	(29,017)	(10,916)	(52,833)	(95,553)
Income tax (expense) benefit	(115)	599	(212)	4,937
Net loss	(29,132)	(10,317)	(53,045)	(90,616)
Net loss attributable to common shareholders:
Net loss attributable to common shareholders, basic	(29,132)	(10,317)	(53,045)	(90,616)
Net loss attributable to common shareholders, diluted	$ (29,132)	$ (10,317)	$ (53,045)	$ (90,616)
Net loss per share attributable to common shareholders:
Net loss per share attributable to common shareholders, basic (in dollars per share)	$ (0.67)	$ (0.24)	$ (1.22)	$ (2.14)
Net loss per share attributable to common shareholders, diluted (in dollars per share)	$ (0.67)	$ (0.24)	$ (1.22)	$ (2.14)
Weighted average shares used to compute loss per share attributable to common shareholders:
Weighted average shares used to compute loss per share attributable to common shareholders, basic (in shares)	43,570,438	42,647,967	43,348,412	42,376,392
Weighted average shares used to compute loss per share attributable to common shareholders, diluted (in shares)	43,570,438	42,647,967	43,348,412	42,376,392
Product revenue
Total product, rental, and service revenue	$ 26,891	$ 33,668	$ 91,520	$ 98,227
Costs and operating expenses:
Cost of goods and services sold (exclusive of intangible assets amortization)	16,665	21,876	57,022	63,377
Service revenue
Total product, rental, and service revenue	4,378	4,330	13,043	11,117
Costs and operating expenses:
Cost of goods and services sold (exclusive of intangible assets amortization)	3,945	3,253	11,873	8,810
Rental revenue
Total product, rental, and service revenue	2,059	2,749	5,975	8,156
Costs and operating expenses:
Cost of goods and services sold (exclusive of intangible assets amortization)	$ 1,069	$ 1,880	$ 4,141	$ 5,462