Quarterly Sales and Earnings Data - Unaudited (Tables)

12 Months Ended

Jan. 01, 2016

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

	4th Qtr.			3rd Qtr.		2nd Qtr.		1st Qtr.
	(in thousands, except per share data)
2015
Sales	$	317,567		$	146,637	$	174,890	$	161,320
Gross profit	73,140			51,646		57,951		52,398
Net income (loss)	(24,907		)	22		9,283		8,008
EPS—basic	(0.85		)	—		0.36		0.32
EPS—diluted	(0.85		)	—		0.35		0.31
2014
Sales	$	169,726		$	171,699	$	172,081	$	174,281
Gross profit	57,214			58,118		58,470		57,596
Net income	14,176			14,012		12,348		14,922
EPS—basic	0.57			0.56		0.50		0.61
EPS—diluted	0.54			0.54		0.48		0.58