Quarterly report pursuant to Section 13 or 15(d)

Acquisitions - Finite-Lived Intangible Assets Acquired (Details)

v3.8.0.1
Acquisitions - Finite-Lived Intangible Assets Acquired (Details) - Thermon Heating Systems Inc. - USD ($)
$ in Thousands
Oct. 30, 2017
Dec. 31, 2017
Business Acquisition [Line Items]    
Gross Carrying Amount   $ 81,193
Accumulated Amortization   1,772
Net Carrying Amount   79,421
Products    
Business Acquisition [Line Items]    
Amortization period 10 years  
Gross Carrying Amount   66,408
Accumulated Amortization   1,107
Net Carrying Amount   65,301
Customer relationships    
Business Acquisition [Line Items]    
Amortization period 17 years  
Gross Carrying Amount   11,465
Accumulated Amortization   112
Net Carrying Amount   11,353
Backlog    
Business Acquisition [Line Items]    
Amortization period 1 year  
Gross Carrying Amount   3,320
Accumulated Amortization   553
Net Carrying Amount   $ 2,767