Stockholders' Equity - Additional Information (Detail) - USD ($) $ in Thousands		4 Months Ended
	Mar. 16, 2016	Apr. 23, 2016	Jul. 16, 2016
Class Of Stock [Line Items]
Agreement to repurchase an aggregate of common stock		$ 108,297
Purchase of shares under accelerated share repurchase	5,600,000	5,959,814
Total ASR Cost
Class Of Stock [Line Items]
Agreement to repurchase an aggregate of common stock	$ 120,000
Total ASR Cost | Scenario, Forecast
Class Of Stock [Line Items]
Number of shares to be repurchased			18,000,000
Original ASR Amount Settled
Class Of Stock [Line Items]
Agreement to repurchase an aggregate of common stock	$ 120,000
Authorized share repurchase plan
Class Of Stock [Line Items]
Agreement to repurchase an aggregate of common stock		$ 612,400
Purchase of shares under accelerated share repurchase		66,800,000