Segment Information - Revenue Classified by Major Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 422,908	$ 276,259	$ 264,730	$ 234,770	$ 295,881	$ 234,793	$ 250,935	$ 251,770	$ 1,198,667	$ 1,033,379	$ 958,154
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue									1,146,759	998,344	925,127
Europe/Middle East
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue									45,767	31,599	29,292
Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue									$ 6,141	$ 3,436	$ 3,735