Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

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Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Income Tax Disclosure [Abstract]        
Annual effective tax rate before discrete events     26.70% 35.00%
Annual effective tax rate after discrete events     (2.60%) 35.30%
Income tax expense (benefit) $ 2,345 $ 3,790 $ (92) $ 7,424
Pre-tax income (loss) 12,917 10,777 3,542 21,011
Long-term liability for uncertain tax positions 657   657  
Income tax expense (benefit) recorded due to release of liability recorded for income tax uncertainties 1,047   1,047  
Interest and penalties accrued as income tax expense     $ 30