Unaudited Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Total product, rental, and service revenue	$ 39,508	$ 40,533	$ 77,210	$ 76,752
Costs and operating expenses:
General and administrative	15,402	11,652	30,241	23,182
Sales and marketing	6,318	5,415	12,789	10,306
Research and development	4,840	3,428	8,995	7,209
Intangible asset impairment charges	0	69,900	0	69,900
Intangible asset amortization	1,450	2,863	2,911	5,725
Acquisition costs	0	5	0	16
Change in fair value of contingent consideration	(918)	(2,361)	(198)	(5,695)
Total operating expenses	54,788	117,096	106,097	161,283
Operating loss	(15,280)	(76,563)	(28,887)	(84,531)
Other income (expense):
Gain on settlement of Global Cooling escrow	5,115	0	5,115	0
Interest expense	(419)	(32)	(829)	(216)
Other income (expense)	390	(22)	785	110
Total other income (expense), net	5,086	(54)	5,071	(106)
Loss before income tax (expense) benefit	(10,194)	(76,617)	(23,816)	(84,637)
Income tax (expense) benefit	(5)	3,739	(97)	4,338
Net loss	(10,199)	(72,878)	(23,913)	(80,299)
Net loss attributable to common shareholders:
Net loss attributable to common shareholders, basic	(10,199)	(72,878)	(23,913)	(80,299)
Net loss attributable to common shareholders, diluted	$ (10,199)	$ (72,878)	$ (23,913)	$ (80,299)
Net loss per share attributable to common shareholders:
Net loss per share attributable to common shareholders, basic (in dollars per share)	$ (0.23)	$ (1.72)	$ (0.55)	$ (1.90)
Net loss per share attributable to common shareholders, diluted (in dollars per share)	$ (0.23)	$ (1.72)	$ (0.55)	$ (1.90)
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)	43,441,219	42,460,189	43,235,558	42,238,355
Weighted average shares used to compute loss per share attributable to common shareholders, diluted (in shares)	43,441,219	42,460,189	43,235,558	42,238,355
Product revenue
Total product, rental, and service revenue	$ 33,037	$ 34,170	$ 64,630	$ 64,558
Costs and operating expenses:
Cost of goods and services sold (exclusive of intangible assets amortization)	21,961	21,561	40,357	41,501
Service revenue
Total product, rental, and service revenue	4,195	3,698	8,665	6,787
Costs and operating expenses:
Cost of goods and services sold (exclusive of intangible assets amortization)	4,038	2,968	7,929	5,557
Rental revenue
Total product, rental, and service revenue	2,276	2,665	3,915	5,407
Costs and operating expenses:
Cost of goods and services sold (exclusive of intangible assets amortization)	$ 1,697	$ 1,665	$ 3,073	$ 3,582