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Earnings Per Share - Schedule of Computation of Basic and Diluted Earnings Per Share from Continuing Operations (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 06, 2018	Oct. 07, 2017	Oct. 06, 2018	Oct. 07, 2017
Numerator:
Earnings (loss) from continuing operations	$ 17,545	$ (123,452)	$ 47,818	$ (87,327)
Adjustment for (earnings) loss attributable to participating securities	(407)	2,064	(1,044)	1,522
Earnings (loss) from continuing operations used in calculating earnings (loss) per share	$ 17,138	$ (121,388)	$ 46,774	$ (85,805)
Denominator:
Weighted average shares outstanding, including participating securities	35,934	37,254	36,033	37,596
Adjustment for participating securities	(833)	(623)	(787)	(655)
Shares used in calculating basic earnings per share	35,101	36,631	35,246	36,941
Effect of dilutive stock options	12		12
Shares used in calculating diluted earnings per share	35,113	36,631	35,258	36,941
Basic earnings (loss) per share from continuing operations	$ 0.49	$ (3.31)	$ 1.33	$ (2.32)
Diluted earnings (loss) per share from continuing operations	$ 0.49	$ (3.31)	$ 1.33	$ (2.32)

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Amount after tax of income (loss) from continuing operations attributable to the parent.

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The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period.

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