BUSINESS SEGMENT INFORMATION (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Reconciliation of segment depreciation and amortization, total assets and expenditures to consolidated amounts
Depreciation and amortization	$ 39,632	$ 23,999	$ 18,668
Assets	620,961	764,069	556,390
Expenditures for long-lived assets	11,529	13,614	7,414
Reportable segments
Reconciliation of segment depreciation and amortization, total assets and expenditures to consolidated amounts
Depreciation and amortization	16,351	11,241	10,622
Assets	474,629	647,139	317,664
Expenditures for long-lived assets	8,251	9,523	5,669
Corporate
Reconciliation of segment depreciation and amortization, total assets and expenditures to consolidated amounts
Depreciation and amortization	23,281	12,758	8,046
Assets	146,332	116,930	238,726
Expenditures for long-lived assets	$ 3,278	$ 4,091	$ 1,745