Annual report pursuant to Section 13 and 15(d)

GEOGRAPHIC INFORMATION - Schedule of Revenues Attributable to Product Groups, Services and Royalties (Details)

v3.4.0.3
GEOGRAPHIC INFORMATION - Schedule of Revenues Attributable to Product Groups, Services and Royalties (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Product revenue                 $ 286,217 $ 355,579 $ 348,318
Service revenue                 148,548 155,674 147,199
Royalty revenue                 41,193 41,842 57,648
Total revenue $ 120,029 $ 128,048 $ 117,025 $ 110,856 $ 147,798 $ 142,063 $ 135,106 $ 128,128 475,958 553,095 553,165
Tape automation systems                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Product revenue                 97,454 152,205 174,438
Disk backup systems                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Product revenue                 39,722 54,845 50,217
Devices and media                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Product revenue                 45,767 62,642 70,680
Scale-out storage solutions                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Product revenue                 $ 103,274 $ 85,887 $ 52,983