RESTRUCTURING COSTS AND ACCRUALS (Details) (USD $)	3 Months Ended			3 Months Ended	2 Months Ended	7 Months Ended	3 Months Ended				2 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Mar. 31, 2013 Restructuring Plan 2012 [Member]	Dec. 31, 2013 Employee Severance [Member] Non-Acquisition-Related [Member] Restructuring Plan 2013 [Member]	Dec. 31, 2013 Employee Severance [Member] Non-Acquisition-Related [Member] Restructuring Plan 2013 [Member] position	Mar. 31, 2014 Non-Acquisition-Related [Member] Employee Severance [Member]	Mar. 31, 2014 Non-Acquisition-Related [Member] Facilities-Related [Member]	Mar. 31, 2014 Facilities-Related [Member]	Mar. 31, 2014 Facilities-Related [Member] Restructuring Plan 2008 [Member]	Dec. 31, 2013 Hardware Shared Services Group [Member] Employee Severance [Member] Non-Acquisition-Related [Member] Restructuring Plan 2013 [Member] position	Dec. 31, 2013 Supply and Technology Group [Member] Employee Severance [Member] Non-Acquisition-Related [Member] Restructuring Plan 2013 [Member] position
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated						31					29	15
Severance costs					$ 1,700,000	$ 1,700,000
Restructuring accrual [Roll Forward]
Accrual balance at beginning of year	8,501,000						2,399,000	6,102,000
Restructuring Charges	0	273,000
Accretion	171,000						0	171,000
Cash payments for employee-related charges	(2,926,000)						(1,693,000)	(1,233,000)
Foreign exchange impact on ending balance	(19,000)						(19,000)	0
Accrual balance at end of period	5,727,000						687,000	5,040,000
Facilities-related accruals - current									2,800,000	5,000,000
Facilities-related accruals - non-current	2,202,000		2,335,000						2,200,000
Restructuring Plan, Estimate Revision				$ 300,000