RESTRUCTURING COSTS AND ACCRUALS (Details) (USD $)	12 Months Ended			2 Months Ended	7 Months Ended	9 Months Ended	3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2013 position	Dec. 31, 2012 position	Jun. 30, 2014
Restructuring Cost and Reserve [Line Items]
New restructuring charges - operating expenses		$ 3,539,000	$ 22,832,000
Restructuring accrual [Roll Forward]
Accrual balance at beginning of year	8,501,000	15,731,000	10,896,000
Revisions of estimated liabilities	(165,000)	1,831,000	2,006,000
Accretion	565,000	612,000	404,000
Cash payments	(6,512,000)	(13,205,000)	(19,410,000)
Non-cash write-offs			(1,459,000)
Foreign exchange impact on ending balance	(46,000)	(7,000)	462,000
Accrual balance at end of period	2,343,000	8,501,000	15,731,000	8,501,000	8,501,000	15,731,000
Facilities-related accruals - non-current	1,334,000	2,335,000		2,335,000	2,335,000
RestructuringPlan2011 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Plan, Estimate Revision			300,000
2010 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Plan, Estimate Revision			700,000
Restructuring Plan 2008 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Plan, Estimate Revision			1,800,000
Employee Severance [Member] | Non-Acquisition-Related [Member] | Restructuring Plan 2013 [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated					31
Severance costs				1,700,000	1,700,000
Employee Severance [Member] | Non-Acquisition-Related [Member] | Restructuring Plan 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated						280
Severance costs		100,000				13,900,000
Employee Severance [Member] | Acquisition-Related [Member]
Restructuring Cost and Reserve [Line Items]
New restructuring charges - operating expenses		0	0
Restructuring accrual [Roll Forward]
Accrual balance at beginning of year	0	0	0
Revisions of estimated liabilities	0	0	0
Accretion	0	0	0
Cash payments	0	0	0
Non-cash write-offs			0
Foreign exchange impact on ending balance	0	0	0
Accrual balance at end of period	0	0	0	0	0	0
Non-Acquisition-Related [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
New restructuring charges - operating expenses		3,539,000	14,751,000
Restructuring accrual [Roll Forward]
Accrual balance at beginning of year	2,399,000	4,298,000	4,045,000
Revisions of estimated liabilities	0	50,000	(841,000)
Accretion	0	0	0
Cash payments	(2,340,000)	(5,469,000)	(14,082,000)
Non-cash write-offs			0
Foreign exchange impact on ending balance	(1,000)	(19,000)	425,000
Accrual balance at end of period	58,000	2,399,000	4,298,000	2,399,000	2,399,000	4,298,000
Non-Acquisition-Related [Member] | Facilities-Related [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Cash payments for facilities, net of sublease income	(4,172,000)	(7,394,000)	(4,893,000)
New restructuring charges - operating expenses			8,081,000
Restructuring accrual [Roll Forward]
Accrual balance at beginning of year	6,102,000	10,838,000	6,461,000
Revisions of estimated liabilities	(165,000)	2,060,000	2,229,000
Accretion	565,000	586,000	382,000
Non-cash write-offs			(1,459,000)
Foreign exchange impact on ending balance	(45,000)	12,000	37,000
Accrual balance at end of period	2,285,000	6,102,000	10,838,000	6,102,000	6,102,000	10,838,000
Facilities-Related [Member]
Restructuring accrual [Roll Forward]
Facilities-related accruals - current	1,000,000	3,800,000		3,800,000	3,800,000
Facilities-related accruals - non-current	1,300,000	2,300,000		2,300,000	2,300,000
Facilities-Related [Member] | Non-Acquisition-Related [Member] | Restructuring Plan 2012 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Plan, Estimate Revision		1,800,000
Restructuring costs, closure of facilities						8,600,000
Restructuring accrual [Roll Forward]
Revisions of estimated liabilities							200,000
Non-cash write-offs						1,400,000
Deferred Rent Liability Write-Off						1,000,000
Facilities-Related [Member] | Non-Acquisition-Related [Member] | Restructuring Plan 2008 [Member]
Restructuring accrual [Roll Forward]
Accrual balance at end of period	600,000
Facilities-Related [Member] | Acquisition-Related [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Cash payments for facilities, net of sublease income		(342,000)	(435,000)
New restructuring charges - operating expenses		0	0
Restructuring accrual [Roll Forward]
Accrual balance at beginning of year	0	595,000	390,000
Revisions of estimated liabilities	0	(279,000)	618,000
Accretion	0	26,000	22,000
Cash payments	0
Non-cash write-offs			0
Foreign exchange impact on ending balance	0	0	0
Accrual balance at end of period	$ 0	$ 0	$ 595,000	$ 0	$ 0	$ 595,000
Hardware Shared Services Group [Member] | Employee Severance [Member] | Non-Acquisition-Related [Member] | Restructuring Plan 2013 [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated				29
Supply and Technology Group [Member] | Employee Severance [Member] | Non-Acquisition-Related [Member] | Restructuring Plan 2013 [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated				15
Engineering Department [Member] | Employee Severance [Member] | Non-Acquisition-Related [Member] | Restructuring Plan 2013 [Member]
Restructuring Cost and Reserve [Line Items]
Number of positions eliminated				4