Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Line Items]
Reduction in current income tax payable attributable to stock-based compensation	$ 76,000	$ 130,000	$ 69,000
Net operating loss carryforwards	121,000	119,000	$ 329,000
Valuation allowance	(65,516)	$ (122,850)
Decrease in NOL valuation allowance	57,000
Undistributed earnings of certain foreign subsidiaries	$ 1,800,000
Effective interest rate of federal statutory income tax rate	35.00%	35.00%	35.00%
Unrecognized tax benefits	$ 220,532	$ 171,177	$ 110,561	$ 109,712
Unrecognized tax benefits that would impact effective tax rate	181,000	138,000
Uncertain tax positions, interest and penalties	15,000	10,000
Interest and penalties	5,304	$ 3,142	$ (8,327)
Foreign
Income Taxes [Line Items]
Indefinite foreign net operating loss carryforwards	235,000
Foreign net operating loss carryforwards subject to expiration	$ 94,000