Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details) - Thermon Holding Corp

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Income Taxes (Details) - Thermon Holding Corp (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Income Taxes    
Annual effective tax rate before discrete events 35.20% 35.20%
Annual effective tax rate after discrete events 35.50% 36.80%
Income tax expense (benefit) $ 3,634 $ (2,889)
Pre-tax income (loss) 10,234 (7,855)
Long-term liability for uncertain tax positions 1,307  
Interest and penalties accrued as income tax expense 33  
Cumulative total accrual of interest and penalties 235  
Thermon Holding Corp.
   
Income Taxes    
Annual effective tax rate before discrete events 35.20% 35.20%
Annual effective tax rate after discrete events 35.50% 36.80%
Income tax expense (benefit) 3,634 (2,889)
Pre-tax income (loss) 10,234 (7,855)
Long-term liability for uncertain tax positions 1,307  
Interest and penalties accrued as income tax expense 33  
Cumulative total accrual of interest and penalties $ 235