Income taxes - Reconciliation of Uncertain Tax Liabilities, Inclusive of Accruals for Related Penalties and Interest (Parenthetical) (Details) $ in Thousands	Mar. 31, 2025 USD ($)
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued [Abstract]
Uncertain tax liabilities, accrued interest	$ 9,322
Uncertain tax liabilities, accrued penalties	$ 6,123

Amount of statutory penalties accrued for a tax position claimed or expected to be claimed by the entity, in its tax return.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-15

Name:	us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant