Property and Equipment, Net - Components of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property Plant And Equipment [Line Items]
Total property and equipment, gross	$ 90,492	$ 365,029
Less accumulated depreciation	(64,666)	(98,472)
Total property and equipment, net	25,826	266,557
Computer Equipment [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross	25,029	20,624
Software [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross	33,932	34,937
Land [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross		89,130
Building and Building Improvements [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross		203,873
Furniture and Fixtures [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross	11,567	10,321
Leasehold Improvements [Member]
Property Plant And Equipment [Line Items]
Total property and equipment, gross	$ 19,964	$ 6,144