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Open Market Share Repurchase Program - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	8 Months Ended
	Oct. 11, 2017	Sep. 10, 2017	Sep. 10, 2017	Sep. 11, 2016	Jul. 27, 2017
Share Repurchases [Line Items]
Common stock repurchased and retired (in shares)		4,558,863	4,639,223	2,714,322
Payments for purchases of common stock			$ 1,012,721	$ 283,858
Stock repurchase remaining authorized repurchase amount		$ 250,000	$ 250,000		$ 136,400
Open Market Purchases [Member]
Share Repurchases [Line Items]
Common stock repurchased and retired (in shares)				2,257,386
Payments for purchases of common stock				$ 283,858
ASR Agreement on October 27 2015 [Member]
Share Repurchases [Line Items]
Common stock repurchased and retired (in shares)				456,936
Accelerated share repurchase agreement				$ 600,000
ASR Agreement on August 2 2017 [Member]
Share Repurchases [Line Items]
Common stock repurchased and retired (in shares)		4,558,863
ASR Agreement on August 2 2017 [Member] | Subsequent Event [Member]
Share Repurchases [Line Items]
Common stock repurchased and retired (in shares)	5,218,670
Common stock repurchased and retired during period, average price	$ 191.62

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Share repurchases.

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The amount needed to adjust previously recorded stockholders' equity balances to the actual aggregate amounts paid, whether in cash or other consideration, to acquire all of the shares purchased under an Accelerated Share Repurchase arrangement.

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- Definition

The cash outflow to reacquire common stock during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585

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Amount remaining of a stock repurchase plan authorized.

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- Definition

Number of shares that have been repurchased and retired during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644

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