Discontinued operations - Assets and Liabilities of Discontinued Operations (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Discontinued Operations [Line Items]
Total current assets, discontinued operations	$ 0	$ 36,691
Total current liabilities, discontinued operations	0	18,816
Deferred tax liabilities	$ 0	74
Discontinued Operations, Disposed of by Sale
Discontinued Operations [Line Items]
Cash and cash equivalents		7,532
Restricted cash		10
Accounts receivable, net		10,758
Inventories		16,292
Prepaid expenses and other current assets		2,099
Total current assets, discontinued operations		36,691
Assets held for rent, net		796
Property and equipment, net		15,387
Operating lease right-of-use assets, net		4,568
Financing lease right-of-use assets, net		94
Long-term deposits and other assets		203
Intangible assets, net		9,153
Goodwill		12,437
Total assets, discontinued operations		79,329
Accounts payable		4,671
Accrued expenses and other current liabilities		3,029
Sales taxes payable		1,043
Warranty liability		7,638
Lease liabilities, operating, current portion		1,512
Lease liabilities, financing, current portion		376
Debt, current portion		547
Total current liabilities, discontinued operations		18,816
Lease liabilities, operating, long-term		4,510
Lease liabilities, financing, long-term		1,168
Debt, long-term		751
Deferred tax liabilities		74
Total liabilities, discontinued operations		25,319
Discontinued Operations, Disposed of by Sale | Global Cooling
Discontinued Operations [Line Items]
Cash and cash equivalents		2,090
Restricted cash		0
Accounts receivable, net		1,728
Inventories		11,248
Prepaid expenses and other current assets		303
Total current assets, discontinued operations		15,369
Assets held for rent, net		0
Property and equipment, net		146
Operating lease right-of-use assets, net		0
Financing lease right-of-use assets, net		0
Long-term deposits and other assets		4
Intangible assets, net		0
Goodwill		0
Total assets, discontinued operations		15,519
Accounts payable		3,367
Accrued expenses and other current liabilities		1,156
Sales taxes payable		481
Warranty liability		7,507
Lease liabilities, operating, current portion		263
Lease liabilities, financing, current portion		22
Debt, current portion		0
Total current liabilities, discontinued operations		12,796
Lease liabilities, operating, long-term		1,016
Lease liabilities, financing, long-term		11
Debt, long-term		0
Deferred tax liabilities		0
Total liabilities, discontinued operations		13,823
Discontinued Operations, Disposed of by Sale | SciSafe
Discontinued Operations [Line Items]
Cash and cash equivalents		5,102
Restricted cash		0
Accounts receivable, net		6,353
Inventories		0
Prepaid expenses and other current assets		895
Total current assets, discontinued operations		12,350
Assets held for rent, net		796
Property and equipment, net		15,241
Operating lease right-of-use assets, net		4,568
Financing lease right-of-use assets, net		94
Long-term deposits and other assets		199
Intangible assets, net		9,153
Goodwill		11,333
Total assets, discontinued operations		53,734
Accounts payable		578
Accrued expenses and other current liabilities		1,300
Sales taxes payable		44
Warranty liability		0
Lease liabilities, operating, current portion		1,249
Lease liabilities, financing, current portion		74
Debt, current portion		447
Total current liabilities, discontinued operations		3,692
Lease liabilities, operating, long-term		3,494
Lease liabilities, financing, long-term		27
Debt, long-term		679
Deferred tax liabilities		0
Total liabilities, discontinued operations		7,892
Discontinued Operations, Disposed of by Sale | CBS
Discontinued Operations [Line Items]
Cash and cash equivalents		340
Restricted cash		10
Accounts receivable, net		2,677
Inventories		5,044
Prepaid expenses and other current assets		901
Total current assets, discontinued operations		8,972
Assets held for rent, net		0
Property and equipment, net		0
Operating lease right-of-use assets, net		0
Financing lease right-of-use assets, net		0
Long-term deposits and other assets		0
Intangible assets, net		0
Goodwill		1,104
Total assets, discontinued operations		10,076
Accounts payable		726
Accrued expenses and other current liabilities		573
Sales taxes payable		518
Warranty liability		131
Lease liabilities, operating, current portion		0
Lease liabilities, financing, current portion		280
Debt, current portion		100
Total current liabilities, discontinued operations		2,328
Lease liabilities, operating, long-term		0
Lease liabilities, financing, long-term		1,130
Debt, long-term		72
Deferred tax liabilities		74
Total liabilities, discontinued operations		$ 3,604