Segment information - Revenue Classified by Major Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 266,028	$ 373,282
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	251,910	356,707
Europe/Middle East
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	11,977	15,410
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 2,141	$ 1,165