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Accrued Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Mar. 31, 2011
Notes to Financial Statements [Abstract]
Bankruptcy reorganization liability	$ 0	$ 19,385
Other accrued expenses	92,741	112,454
Accrued Liabilities, Current	$ 92,741	$ 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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