Annual report pursuant to Section 13 and 15(d)

Acquisitions - Narrative (Details)

v3.19.2
Acquisitions - Narrative (Details)
$ in Thousands, $ in Thousands
12 Months Ended
Oct. 30, 2017
CAD ($)
Oct. 30, 2017
USD ($)
Mar. 31, 2019
USD ($)
Oct. 31, 2018
USD ($)
Mar. 31, 2018
USD ($)
Business Acquisition [Line Items]          
Amortization period     10 years 7 months 6 days    
Goodwill     $ 204,995   $ 210,566
Thermon Heating Systems Inc.          
Business Acquisition [Line Items]          
Equity interests acquired   100.00%      
Payments to acquire business $ 262,415 $ 204,596      
Transaction costs         $ 4,093
Goodwill   $ 85,637   $ 85,637