Fair value - Reconciliation of Acquisition-Related Contingent Consideration Payable (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Liabilities Reconciliation [Roll Forward]
Contingent consideration payable, beginning balance	$ 0	$ 3,288	$ 6,933
Effect of net foreign currency exchange rate changes	(451)
Contingent consideration payable, ending balance	9,729	$ 0	3,288
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Interest and other income, net
Liabilities transfers into level 3	0	$ 0	0
Liabilities transfers out of level 3	0	0	0
Daxx
Fair Value, Liabilities Reconciliation [Roll Forward]
Payment of contingent consideration			(1,933)
Tacit
Fair Value, Liabilities Reconciliation [Roll Forward]
Payment of contingent consideration			(5,000)
Mutual Mobile
Fair Value, Liabilities Reconciliation [Roll Forward]
Acquisition date fair value of contingent consideration payable			$ 3,288
Change in fair value of contingent consideration payable included in Other income/(expense)		(3,288)
NextSphere
Fair Value, Liabilities Reconciliation [Roll Forward]
Acquisition date fair value of contingent consideration payable		932
Change in fair value of contingent consideration payable included in Other income/(expense)		$ (932)
JUXT
Fair Value, Liabilities Reconciliation [Roll Forward]
Acquisition date fair value of contingent consideration payable	7,480
Mobile Computing
Fair Value, Liabilities Reconciliation [Roll Forward]
Acquisition date fair value of contingent consideration payable	$ 2,700