CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Net loss	$ (19,060)	$ (3,529)	$ (23,470)	$ (5,623)
Other comprehensive loss:
Amortization of prior service cost	38	42	76	84
Amortization of actuarial loss	(4)	(8)	(7)	(17)
Adjustments to net periodic benefit cost	34	34	69	67
Comprehensive loss	$ (19,094)	$ (3,563)	$ (23,539)	$ (5,690)