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Accrued Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Mar. 31, 2011
Liabilities, Current [Abstract]
Bankruptcy reorganization liability	$ 0	$ 19,385
Other accrued expenses	88,877	112,454
Accrued Liabilities, Current	$ 88,877	$ 131,839

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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