DETAILS OF CERTAIN BALANCE SHEET ACCOUNTS - Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015	Jun. 30, 2014	Mar. 31, 2014
Accrued Liabilities [Abstract]
Employee compensation and benefits	$ 24,052	$ 31,888
Warranty obligation	8,183	7,717	$ 8,207	$ 7,965
VAT/Sales Tax Payable	5,496	4,749
Accrued other	17,754	17,687
Accrued liabilities	$ 55,485	$ 62,041