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Equity - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 31, 2016	Jan. 23, 2019	Dec. 11, 2017	May 19, 2015
Equity [Line Items]
Shares authorized for repurchase				3,000,000	1,963,875
Remaining shares available for repurchase	1,000,000
Total cost of repurchase of common stock	$ 208,087	$ 50,516
Preferred stock, shares authorized and unissued	2,000,000
Subsequent Event [Member]
Equity [Line Items]
Shares authorized for repurchase			1,000,000
Remaining shares available for repurchase			2,000,000
Treasury Stock
Equity [Line Items]
Common stock repurchased during period, shares	2,000,000	773,281

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- Definition

Equity [Line Items]

+ References

No definition available.

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- Definition

The cash outflow to reacquire common stock during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

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- Definition

The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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

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- Definition

The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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- Definition

The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

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