Short-Term Revolving Lines of Credit (Details)
|
Dec. 31, 2012
Thermon Holding Corp.
USD ($)
|
Mar. 31, 2012
Netherlands
USD ($)
|
Dec. 31, 2012
Netherlands
Thermon Holding Corp.
USD ($)
|
Dec. 31, 2012
Netherlands
Thermon Holding Corp.
EUR (€)
|
Dec. 31, 2012
India
USD ($)
|
Mar. 31, 2012
India
USD ($)
|
Dec. 31, 2012
India
Thermon Holding Corp.
USD ($)
|
Dec. 31, 2012
India
Thermon Holding Corp.
INR
|
Dec. 31, 2012
Australia
USD ($)
|
Mar. 31, 2012
Australia
USD ($)
|
Dec. 31, 2012
Australia
Thermon Holding Corp.
USD ($)
|
Dec. 31, 2012
Australia
Thermon Holding Corp.
AUD
|
Dec. 31, 2012
Japan
USD ($)
|
Mar. 31, 2012
Japan
USD ($)
|
Dec. 31, 2012
Japan
Thermon Holding Corp.
USD ($)
|
Dec. 31, 2012
Japan
Thermon Holding Corp.
JPY (¥)
|
Mar. 31, 2012
Revolving credit facility
USD ($)
|
Dec. 31, 2012
Revolving credit facility
Netherlands
USD ($)
|
Dec. 31, 2012
Revolving credit facility
Netherlands
EUR (€)
|
Dec. 31, 2012
Revolving credit facility
India
USD ($)
|
Dec. 31, 2012
Revolving credit facility
India
INR
|
Dec. 31, 2012
Revolving credit facility
Australia
USD ($)
|
Dec. 31, 2012
Revolving credit facility
Australia
AUD
|
Dec. 31, 2012
Revolving credit facility
Japan
USD ($)
|
Dec. 31, 2012
Revolving credit facility
Japan
JPY (¥)
|
Dec. 31, 2012
Credit Facility [Domain]
Thermon Holding Corp.
USD ($)
|
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Short-Term Revolving Lines of Credit | ||||||||||||||||||||||||||
Maximum borrowing capacity | $ 5,286,000 | € 4,000,000 | $ 1,460,000 | 80,000,000 | $ 337,000 | 325,000 | $ 524,000 | ¥ 45,000,000 | $ 5,286,000 | € 4,000,000 | $ 1,460,000 | 80,000,000 | $ 337,000 | 325,000 | $ 524,000 | ¥ 45,000,000 | ||||||||||
Outstanding borrowings | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 | $ 0 |