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, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Income Tax Disclosure [Abstract]        
Income tax expense (benefit) $ 4,800 $ 2,345 $ 4,853 $ (92)
Pre-tax income (loss) 16,548 12,917 28,135 3,542
Decrease of deferred tax liability 3,224   3,224  
Income Tax Expense (Benefit) Recorded Due To Release Of Liability Recorded For Income Tax Uncertainties       (1,047)
Annual effective tax rate before discrete events     28.50% 26.70%
Long-term liability for uncertain tax positions 718   718  
Interest and penalties accrued as income tax expense     $ 31