Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details)

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Fair Value Measurements (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Mar. 31, 2012
Financial Liabilities, Long-term debt    
Carrying Value $ 118,145 $ 139,145
Fair Value 131,879 153,755
Thermon Holding Corp.
   
Financial Liabilities, Long-term debt    
Carrying Value 118,145 139,145
Fair Value $ 131,879 $ 153,755