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RESTRUCTURING CHARGES (Tables)
3 Months Ended
Jun. 30, 2017
Restructuring and Related Activities [Abstract]  
Summary of restructuring costs
The following table summarizes activities in the restructuring costs accrual balance.

 
Restructuring Costs
Balance as of June 30, 2016
$
2,375

Payments
(1,721
)
Balance as at March 31, 2017
654

Payments
(156
)
Balance as at June 30, 2017
498