ACQUISITIONS (Seaton Narrative) (Details) (USD $)	12 Months Ended			0 Months Ended	6 Months Ended
	Dec. 26, 2014	Dec. 27, 2013	Dec. 28, 2012	Jun. 30, 2014	Dec. 26, 2014
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired	$ 305,876,000	$ 77,560,000	$ 0
Revolving Credit Facility [Member] | Bank of America, N.A. and Wells Fargo Capital Finance, LLC [Member]
Business Acquisition [Line Items]
Revolving Credit Facility, maximum borrowing capacity				300,000,000
Staffing Solutions Holdings, Inc. (Seaton) [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition				Jun. 30, 2014
Payments to Acquire Businesses, Net of Cash Acquired				305,900,000
Acquisition-related and integration Costs	5,200,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual					394,400,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual					13,600,000
BUSINESS COMBINATION, DEPRECIATION AND AMORTIZATION OF ACQUIRED COMPANY INCLUDED					6,300,000
Staffing Solutions Holdings, Inc. (Seaton) [Member] | Revolving Credit Facility [Member] | Bank of America, N.A. and Wells Fargo Capital Finance, LLC [Member]
Business Acquisition [Line Items]
Cash from credit facility used in business acquisition				$ 187,000,000