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New Accounting Pronouncements Not Yet Adopted
6 Months Ended
Sep. 30, 2011
New Accounting Pronouncements Not Yet Adopted [Abstract] 
New Accounting Pronouncements Not Yet Adopted
(10) New Accounting Pronouncements Not Yet Adopted
In May 2011, the FASB issued updated guidance for fair value measurements, primarily clarifying existing guidance and adding new disclosure requirements for Level 3 fair value measurements. This guidance requires entities to disclose quantitative information about the significant unobservable inputs used in Level 3 measurements, and to provide additional qualitative information regarding the valuation process in place for Level 3 measurements and the sensitivity of recurring Level 3 fair value measurements to changes in unobservable inputs used. This new guidance is effective for us beginning with our fourth quarter of fiscal 2012 and is not expected to have a material effect on our financial position, results of operations or cash flows.