Long-Lived Assets - Summary of Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 182,458	$ 175,091
Less - accumulated depreciation	(98,029)	(93,278)
Property and equipment, net	$ 84,429	81,813
Minimum
Property Plant And Equipment [Line Items]
Property and equipment, useful lives	3 years
Maximum
Property Plant And Equipment [Line Items]
Property and equipment, useful lives	10 years
Computer equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 88,701	84,814
Computer equipment | Minimum
Property Plant And Equipment [Line Items]
Property and equipment, useful lives	3 years
Computer equipment | Maximum
Property Plant And Equipment [Line Items]
Property and equipment, useful lives	6 years
Leasehold improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 25,778	22,494
Leasehold improvements | Minimum
Property Plant And Equipment [Line Items]
Property and equipment, useful lives	5 years
Leasehold improvements | Maximum
Property Plant And Equipment [Line Items]
Property and equipment, useful lives	10 years
Operating equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 59,864	58,521
Operating equipment | Minimum
Property Plant And Equipment [Line Items]
Property and equipment, useful lives	3 years
Operating equipment | Maximum
Property Plant And Equipment [Line Items]
Property and equipment, useful lives	8 years
Furniture and fixtures
Property Plant And Equipment [Line Items]
Property and equipment, useful lives	8 years
Property and equipment, gross	$ 8,115	$ 9,262