INCOME TAXES (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating loss carryforwards
Provision for foreign withholding taxes or U.S. income taxes, which may become payable if undistributed earnings of foreign subsidiaries are repatriated	$ 0
Total amount of undistributed earnings of foreign subsidiaries	104,100	151,400
Gross unrecognized tax benefits including interest and penalties	21,712	22,406
Gross unrealized tax benefits, which would affect effective tax rate, if realized	14,302	15,646
Domestic | Begin to expire in 2026
Operating loss carryforwards
Net operating loss carryforwards	363,311
Foreign
Operating loss carryforwards
Net operating loss carryforwards	234,956
Foreign | Begin to expire in 2014
Operating loss carryforwards
Net operating loss carryforwards	5,656
Foreign | Begin to expire in 2016
Operating loss carryforwards
Net operating loss carryforwards	214,544
Foreign | Expire in 2023
Operating loss carryforwards
Net operating loss carryforwards	$ 1,614