Quarterly report pursuant to Section 13 or 15(d)

RESTRUCTURING CHARGES - Accrued Restructuring (Details)

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RESTRUCTURING CHARGES - Accrued Restructuring (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Restructuring Reserve [Roll Forward]    
Balance as of March 31, 2017 $ 1,350 $ 2,737
Restructuring costs 1,570 1,915
Adjustment of prior estimates 756 179
Cash payments (883) (1,368)
Balance as of June 30, 2017 2,793 3,463
Severance and Benefits    
Restructuring Reserve [Roll Forward]    
Balance as of March 31, 2017 130 354
Restructuring costs 1,570 1,489
Adjustment of prior estimates 0 0
Cash payments (472) (1,029)
Balance as of June 30, 2017 1,228 814
Facilities    
Restructuring Reserve [Roll Forward]    
Balance as of March 31, 2017 1,220 2,383
Restructuring costs 0 426
Adjustment of prior estimates 756 179
Cash payments (411) (339)
Balance as of June 30, 2017 $ 1,565 $ 2,649