RESTRUCTURING COSTS AND ACCRUALS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Restructuring accrual [Roll Forward]
Accrual balance at beginning of year			$ 2,343
Restructuring Charges	$ 539	$ (165)	539	$ (165)
Revisions of estimated liabilities			539
Accretion			107
Cash payments			(736)
Foreign exchange impact on ending balance			(48)
Accrual balance at end of period	2,205		2,205
Facilities-related accruals - non-current	1,158		1,158		$ 1,334
Non-Acquisition-Related [Member] | Employee Severance [Member]
Restructuring accrual [Roll Forward]
Accrual balance at beginning of year			58
Revisions of estimated liabilities			0
Accretion			0
Cash payments			(58)
Foreign exchange impact on ending balance			0
Accrual balance at end of period	0		0
Non-Acquisition-Related [Member] | Facilities-Related [Member]
Restructuring accrual [Roll Forward]
Accrual balance at beginning of year			2,285
Revisions of estimated liabilities			539
Accretion			107
Cash payments			(678)
Foreign exchange impact on ending balance			(48)
Accrual balance at end of period	2,205		2,205
Facilities-Related [Member]
Restructuring accrual [Roll Forward]
Facilities-related accruals - current	1,000		1,000
Facilities-related accruals - non-current	1,200		1,200
Facilities-Related [Member] | Restructuring Plan 2008 [Member]
Restructuring accrual [Roll Forward]
Facilities-related accruals - current	$ 2,200		$ 2,200