Commitments and contingencies (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Jun. 05, 2023	Dec. 31, 2022	May 03, 2021
Other Commitments [Line Items]
Sales and excise tax payable	$ 4,800		$ 4,800			$ 3,700
Sales taxes assessed	$ 266		$ 266			$ 306
Common stock, shares issued (in shares)	43,442,250		43,442,250			42,832,231
Common stock, shares outstanding (in shares)	43,442,250		43,442,250			42,832,231
Gain on settlement of Global Cooling escrow	$ 5,115	$ 0	$ 5,115	$ 0
GCI Escrow
Other Commitments [Line Items]
Common stock, shares issued (in shares)							6,646,870
GCI Escrow | General Escrow Shares
Other Commitments [Line Items]
Shares deposited into escrow, percent							5.00%
GCI Escrow | General Escrow Shares | Settled Litigation
Other Commitments [Line Items]
Shares deposited into escrow, percent					65.00%
Common stock, shares outstanding (in shares)					216,024
GCI Escrow | Escrow Shares
Other Commitments [Line Items]
Shares deposited into escrow, percent							9.00%
Shares deposited into escrow, holding term							18 months