Revenue from Contracts with Customers - Summary of Revenue Disaggregated By Geography (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 509,336	$ 251,914	$ 1,350,412	$ 613,876
Revenue Benchmark
Disaggregation of Revenue [Line Items]
Revenue	$ 509,336	$ 251,914	$ 1,350,412	$ 613,876
Revenue Benchmark | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	100.00%	100.00%	100.00%	100.00%
Revenue Benchmark | United States and Canada
Disaggregation of Revenue [Line Items]
Revenue	$ 345,611	$ 173,872	$ 919,322	$ 426,289
Revenue Benchmark | United States and Canada | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	68.00%	69.00%	68.00%	69.00%
Revenue Benchmark | Europe
Disaggregation of Revenue [Line Items]
Revenue	$ 94,522	$ 46,398	$ 252,166	$ 110,839
Revenue Benchmark | Europe | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	19.00%	18.00%	19.00%	18.00%
Revenue Benchmark | Asia-Pacific, including Australia and New Zealand
Disaggregation of Revenue [Line Items]
Revenue	$ 37,529	$ 19,060	$ 98,891	$ 47,017
Revenue Benchmark | Asia-Pacific, including Australia and New Zealand | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	7.00%	8.00%	7.00%	8.00%
Revenue Benchmark | Rest of world
Disaggregation of Revenue [Line Items]
Revenue	$ 31,674	$ 12,584	$ 80,033	$ 29,731
Revenue Benchmark | Rest of world | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	6.00%	5.00%	6.00%	5.00%
Revenue Benchmark | U.S | Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Percentage of revenue	64.00%	65.00%	64.00%	65.00%