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Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 02, 2017 | Jul. 03, 2016 | Jul. 02, 2017 | Jul. 03, 2016
New Accounting Pronouncements or Change in Accounting Principle |  |  |  |
Income tax provision (benefit) | $ 31,901 | $ (7,271) | $ 38,696 | $ (65)
ASU 2016-09 |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle |  |  |  |
Cumulative effect adjustment to increase retained earnings and deferred tax assets | 39,000 |  | 39,000 |
Income tax provision (benefit) | $ (800) |  | $ (6,000) |

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