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LONG-TERM DEBT (Debt Maturities Due) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Mar. 31, 2012
Long-term Debt, Rolling Maturity [Abstract]
June 30, 2013	$ 3,674
June 30, 2014	3,674
June 30, 2015	7,347
Long-term Debt, Maturities, Repayments of Principal in Year Four	132,250
Long-term debt	$ 146,945	$ 133,601

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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