Segment information - Revenue Classified by Major Geographic Areas (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 1,248,825	$ 1,110,941	$ 1,394,035
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	1,199,558	1,058,188	1,336,628
Europe/Middle East
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	46,490	47,080	51,698
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 2,777	$ 5,673	$ 5,709