Condensed Consolidated Statements of Comprehensive (Loss) Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Statement of Comprehensive Income [Abstract]
Net (Loss) Income	$ (9,515)	$ 2,933	$ (9,706)	$ 14,711
Other Comprehensive Loss
Amortization of actuarial losses and prior service costs, net of tax benefit of approximately $83 and $40 for the three months ended October 3, 2015 and September 27, 2014, respectively, and approximately $248 and $124 for the nine months ended October 3, 2015 and September 27, 2014, respectively	(139)	(66)	(417)	(192)
Other Comprehensive Loss	(139)	(66)	(417)	(192)
Comprehensive (Loss) Income	$ (9,376)	$ 2,999	$ (9,289)	$ 14,903