Segment information - Revenue Classified by Major Geographic Areas (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 1,638,071	$ 1,432,496	$ 1,248,825
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	1,572,329	1,376,254	1,199,558
Europe/Middle East
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	63,149	52,513	46,490
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 2,593	$ 3,729	$ 2,777