SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 25, 2010
Long-Lived Assets
Depreciation expense	$ 55,559	$ 54,352	$ 46,791
Buildings and improvements
Long-Lived Assets
Estimated useful lives, Minimum (in years)	15
Estimated useful lives, Maximum (in years)	40
Machinery and equipment
Long-Lived Assets
Estimated useful lives, Minimum (in years)	3
Estimated useful lives, Maximum (in years)	12
Transportation equipment
Long-Lived Assets
Estimated useful lives, Minimum (in years)	3
Estimated useful lives, Maximum (in years)	24
Office furniture and equipment
Long-Lived Assets
Estimated useful lives, Minimum (in years)	3
Estimated useful lives, Maximum (in years)	7