New Accounting Pronouncements - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 26, 2017	Mar. 27, 2016
Tax impact from equity-based compensation	$ 6,498	$ 31,896
Tax impact from equity-based compensation		31,896
Accounting Standards Update 2016-09 [Member]
Effective tax rate percentage decrease	(7.20%)
Tax impact from equity-based compensation	$ 6,498
Tax impact from equity-based compensation		$ 31,896

Effective Income Tax Rate Reconciliation, Change in Tax Rates

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- Definition

Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 20
-Section 55
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=65896087&loc=d3e11374-113907

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Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

+ References

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