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Balance Type:	na
Period Type:	duration

COMMITMENTS AND CONTINGENCIES (Details) $ in Millions	1 Months Ended		3 Months Ended
COMMITMENTS AND CONTINGENCIES (Details) $ in Millions	Feb. 28, 2009 item	Dec. 31, 2008 item	Mar. 27, 2016 USD ($) item
Letter of credit
Additional disclosures
Outstanding letters of credit \| $			$ 31.0
"Sacramento Case"
Contingencies
Number of carriers	5,000
Number of phases			3
"Fresno Case"
Contingencies
Number of carriers		3,500
Number of phases			2