SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Components of Accumulated Other Comprehensive Loss (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012
Change in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive Income Balance, Beginning	$ (39,454)	$ (37,413)
Net current-period other comprehensive loss	14,221	(2,041)
Accumulated Other Comprehensive Income Balance, Ending	(25,233)	(39,454)
Other Comprehensive Income (Loss), Tax	5,540
Accumulated Translation Adjustment [Member]
Change in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive Income Balance, Beginning	(192)	(330)
Net current-period other comprehensive loss	(169)	138
Accumulated Other Comprehensive Income Balance, Ending	(361)	(192)
Accumulated Defined Benefit Plans Adjustment [Member]
Change in Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Accumulated Other Comprehensive Income Balance, Beginning	(39,262)	(37,083)
Net current-period other comprehensive loss	14,390	(2,179)
Accumulated Other Comprehensive Income Balance, Ending	$ (24,872)	$ (39,262)