Open Market Share Repurchase Program - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended			8 Months Ended
	Mar. 14, 2016	Sep. 11, 2016	Mar. 27, 2016	Sep. 06, 2015	Sep. 11, 2016	Sep. 06, 2015
Share Repurchases [Line Items]
Accelerated share repurchase agreement			$ 600,000
Common stock repurchased and retired (in shares)	456,936	412,260		365,460		1,293,924
Common stock repurchased and retired		$ 59,700		$ 40,900	$ 283,858	$ 138,550
Stock repurchase program, amount remaining		$ 165,500			$ 165,500
Accelerated Share Repurchase Program [Member]
Share Repurchases [Line Items]
Common stock repurchased and retired (in shares)			456,936		456,936