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Accounts Payable And Accrued Expenses (Schedule Of Accounts Payable And Accrued Expenses) (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2012 | Mar. 31, 2011
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Accounts Payable And Accrued Expenses [Abstract] |  |
Accounts payable | $ 8,191 | $ 40,074
Accrued inventories in-transit | 3,330 | 6,196
Accrued miscellaneous expenses | 9,708 | 14,785
Accrued subcontractor program costs | 1,885 | 1,190
Accrued compensation | 8,380 | 8,174
Income taxes payable | 192 | 11,947
Accrued warranty | 5,896 | 7,907
Total | $ 37,582 | $ 90,273

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