BALANCE SHEET DETAILS (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Outstanding note payable		$ 1.9
Outstanding note payable included in other long-term liabilities		1.6
Outstanding note payable included in accounts payable		0.3
Payment to equity method investee relating to a cost sharing arrangement for facility services	$ 5.8	$ 6.8