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SUPPLEMENTAL CASH FLOW DISCLOSURES (Details) (USD $)	12 Months Ended
SUPPLEMENTAL CASH FLOW DISCLOSURES (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Net cash paid for:
Interest	$ 66,071,000	$ 42,067,000	$ 83,133,000
Income Taxes	52,306,000	66,013,000	77,690,000
Non-cash investing activity:
Accounts payable for fixed assets purchases	$ 89,718,000	$ 63,671,000	$ 73,036,000

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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