INCOME TAXES (Details 4) (USD $)	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
INCOME TAXES
Fixed assets, Deferred tax liabilities	$ (36,542,000)	$ (30,159,000)
Others, Deferred tax liabilities	(61,621,000)	(30,032,000)
Total deferred tax liabilities	(98,163,000)	(60,191,000)
Fixed assets, Deferred tax assets	66,959,000	73,588,000
Intangible assets	112,327,000	178,910,000
Deferred compensation	10,341,000	11,088,000
Inventory valuation	12,514,000	12,265,000
Provision for doubtful accounts	13,807,000	3,340,000
Net operating loss and other carryforwards	2,600,895,000	2,753,940,000
Others	167,085,000	176,547,000
Gross deferred tax assets	2,983,928,000	3,209,678,000
Valuation allowances	(2,825,579,000)	(3,099,561,000)
Net deferred tax assets	158,349,000	110,117,000
Net deferred tax assets, net of valuation allowance	60,186,000	49,926,000
Current asset (classified as other current assets)	7,881,000	815,000
Long-term asset	52,305,000	49,111,000
Valuation allowance relating to income tax benefits	34,000,000
Deferred tax asset associated with tax loss and tax credit carryforwards	43,700,000
Deferred tax asset associated with tax loss and tax credit carryforwards of indefinite duration	21,100,000
Undistributed earnings of foreign subsidiaries	$ 457,700,000