Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

v3.3.0.814
Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Income Tax Examination [Line Items]        
Income tax expense $ 3,041 $ 4,800 $ 5,508 $ 4,853
Pre-tax income (loss) $ 10,022 $ 16,548 17,015 28,135
Decrease of deferred tax liability     (455) $ (3,224)
Annual effective tax rate before discrete events 29.40%     28.50%
Long-term liability for uncertain tax positions $ 1,914   1,914  
Reduction of uncertain tax positions in next 12 months 1,281   1,281  
Interest and penalties accrued as income tax expense     47  
Industrial Process Insulators, Inc.        
Income Tax Examination [Line Items]        
Long-term liability for uncertain tax positions 1,119   1,119  
Reduction of uncertain tax positions in next 12 months $ 501   $ 501