OTHER INCOME (EXPENSE) , NET Components of Other Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Other Income and Expenses [Abstract]
Interest and investment income	$ 12	$ 36	$ 26	$ 57
Income tax (expense) benefit	(35)	283	(119)	171
Termination fee income, net	0	745	0	745
Total other income (expense), net	$ (23)	$ 1,064	$ (93)	$ 973