Revenue recognition - Schedule of Capitalized Costs (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Revenue from Contract with Customer [Abstract]
Capitalized costs to fulfill contracts with customers - current	$ 1,602	$ 1,602
Capitalized costs to fulfill contracts with customers - non-current	$ 9,624	$ 10,425

Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer; classified as noncurrent.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 340
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479483/340-40-50-3

Name:	us-gaap_CapitalizedContractCostNetNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant