INCOME TAXES (Details 4) (USD $)	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
INCOME TAXES
Fixed assets, Deferred tax liabilities	$ (73,327,000)	$ (76,524,000)
Others, Deferred tax liabilities	(44,603,000)	(54,900,000)
Total deferred tax liabilities	(117,930,000)	(131,424,000)
Fixed assets, Deferred tax assets	80,370,000	80,801,000
Intangible assets	28,954,000	62,951,000
Deferred compensation	13,618,000	10,263,000
Inventory valuation	11,864,000	9,255,000
Provision for doubtful accounts	3,149,000	3,558,000
Net operating loss and other carryforwards	2,394,456,000	2,613,095,000
Others	264,781,000	201,906,000
Gross deferred tax assets	2,797,192,000	2,981,829,000
Valuation allowances	(2,521,763,000)	(2,749,040,000)
Net deferred tax assets, net of valuation allowance	275,429,000	232,789,000
Net deferred tax assets	157,499,000	101,365,000
Current asset (classified as other current assets)	63,910,000	13,522,000
Long-term asset (classified as other assets)	211,519,000	219,267,000
Long-term liability (classified as other liabilities)	(117,930,000)	(131,424,000)
Current impact on the tax provision due to change in valuation allowance	34,000,000
Deferred tax asset associated with tax loss and tax credit carryforwards of indefinite duration	2,400,000,000
Valuation allowance relating to deferred tax assets	45,400,000
Tax losses and other carryforwards
Tax losses and other carryforwards	2,426,842,000
Undistributed earnings of subsidiaries	800,000,000
Undistributed foreign earnings that applicable foreign withholding taxes have been provided	145,900,000
Deferred tax liability on undistributed foreign earnings	12,600,000
2016-2021
Tax losses and other carryforwards
Tax losses and other carryforwards	344,790,000
2022-2027
Tax losses and other carryforwards
Tax losses and other carryforwards	939,453,000
2028 and post
Tax losses and other carryforwards
Tax losses and other carryforwards	660,072,000
Indefinite
Tax losses and other carryforwards
Tax losses and other carryforwards	$ 482,527,000