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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
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