Annual report pursuant to Section 13 and 15(d)

Restructuring and Other Charges/(Income) - Narrative (Details)

v3.24.1.1.u2
Restructuring and Other Charges/(Income) - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2022
Restructuring Cost and Reserve [Line Items]          
Costs incurred     $ 984 $ 3,693 $ (414)
Russia Exit          
Restructuring Cost and Reserve [Line Items]          
Costs incurred $ 984        
Legal and professional fees   $ 209   282  
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Russia Exit          
Restructuring Cost and Reserve [Line Items]          
Restructuring final sale price $ 1,041   $ 1,041    
Thermon South Africa Proprieary Limited          
Restructuring Cost and Reserve [Line Items]          
Cash receipts         (311)
Canada          
Restructuring Cost and Reserve [Line Items]          
Cost of revenue       $ 241  
Canada | Russia Exit          
Restructuring Cost and Reserve [Line Items]          
Severance cost (gain)         $ (103)