Earnings Per Share - Computation of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Weighted average shares:
Basic weighted average shares outstanding	51,152	50,835	50,926	50,615
Effect of dilutive securities outstanding	0	626	0	636
Diluted weighted average and equivalent shares outstanding	51,152	51,461	50,926	51,251
Net (loss) income	$ (28,950)	$ 14,945	$ (130,505)	$ 84,108
Basic per share amounts:
Basic weighted average shares outstanding	51,152	50,835	50,926	50,615
Per share amount	$ (0.57)	$ 0.29	$ (2.56)	$ 1.66
Diluted per share amounts:
Diluted weighted average and equivalent shares outstanding	51,152	51,461	50,926	51,251
Per share amount	$ (0.57)	$ 0.29	$ (2.56)	$ 1.64