Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangible Assets - Intangible Assets related to Acquisition (Details)

v3.3.1.900
Goodwill and Other Intangible Assets - Intangible Assets related to Acquisition (Details) - USD ($)
$ in Thousands
 9 Months Ended
Dec. 31, 2015
Mar. 31, 2015
Finite-Lived Intangible Assets [Line Items]    
Intangible Assets, Net (Excluding Goodwill) $ 105,043 $ 100,813
Industrial Process Insulators, Inc.    
Finite-Lived Intangible Assets [Line Items]    
Intangible Assets, Gross (Excluding Goodwill) 13,784  
Finite-Lived Intangible Assets, Accumulated Amortization 1,018  
Intangible Assets, Net (Excluding Goodwill) 12,766  
Unitemp    
Finite-Lived Intangible Assets [Line Items]    
Intangible Assets, Gross (Excluding Goodwill) 984 1,255
Finite-Lived Intangible Assets, Accumulated Amortization 135 17
Intangible Assets, Net (Excluding Goodwill) 849 1,238
Unitemp | Trademarks    
Finite-Lived Intangible Assets [Line Items]    
Intangible Assets, Gross (Excluding Goodwill) 612 780
Finite-Lived Intangible Assets, Accumulated Amortization 64 8
Intangible Assets, Net (Excluding Goodwill) 548 772
Sumac Fabrication Company Limited    
Finite-Lived Intangible Assets [Line Items]    
Intangible Assets, Gross (Excluding Goodwill) 2,421  
Finite-Lived Intangible Assets, Accumulated Amortization 688  
Intangible Assets, Net (Excluding Goodwill) $ 1,733  
Order or Production Backlog | Industrial Process Insulators, Inc.    
Finite-Lived Intangible Assets [Line Items]    
Amortization period 6 months  
Intangible Assets, Gross (Excluding Goodwill) $ 437  
Finite-Lived Intangible Assets, Accumulated Amortization 364  
Intangible Assets, Net (Excluding Goodwill) $ 73  
Order or Production Backlog | Sumac Fabrication Company Limited    
Finite-Lived Intangible Assets [Line Items]    
Amortization period 6 months  
Intangible Assets, Gross (Excluding Goodwill) $ 170  
Finite-Lived Intangible Assets, Accumulated Amortization 170  
Intangible Assets, Net (Excluding Goodwill) $ 0  
Customer Relationships | Industrial Process Insulators, Inc.    
Finite-Lived Intangible Assets [Line Items]    
Amortization period 10 years  
Intangible Assets, Gross (Excluding Goodwill) $ 10,720  
Finite-Lived Intangible Assets, Accumulated Amortization 447  
Intangible Assets, Net (Excluding Goodwill) 10,273  
Customer Relationships | Unitemp    
Finite-Lived Intangible Assets [Line Items]    
Intangible Assets, Gross (Excluding Goodwill) 288 368
Finite-Lived Intangible Assets, Accumulated Amortization 48 6
Intangible Assets, Net (Excluding Goodwill) $ 240 362
Customer Relationships | Sumac Fabrication Company Limited    
Finite-Lived Intangible Assets [Line Items]    
Amortization period 3 years  
Intangible Assets, Gross (Excluding Goodwill) $ 1,705  
Finite-Lived Intangible Assets, Accumulated Amortization 426  
Intangible Assets, Net (Excluding Goodwill) $ 1,279  
Trademarks | Industrial Process Insulators, Inc.    
Finite-Lived Intangible Assets [Line Items]    
Amortization period 8 years  
Intangible Assets, Gross (Excluding Goodwill) $ 1,820  
Finite-Lived Intangible Assets, Accumulated Amortization 95  
Intangible Assets, Net (Excluding Goodwill) 1,725  
Developed Technology Rights | Unitemp    
Finite-Lived Intangible Assets [Line Items]    
Intangible Assets, Gross (Excluding Goodwill) 84 107
Finite-Lived Intangible Assets, Accumulated Amortization 23 3
Intangible Assets, Net (Excluding Goodwill) $ 61 $ 104
Other Intangible Assets | Industrial Process Insulators, Inc.    
Finite-Lived Intangible Assets [Line Items]    
Amortization period 3 years  
Intangible Assets, Gross (Excluding Goodwill) $ 807  
Finite-Lived Intangible Assets, Accumulated Amortization 112  
Intangible Assets, Net (Excluding Goodwill) $ 695  
Other Intangible Assets | Sumac Fabrication Company Limited    
Finite-Lived Intangible Assets [Line Items]    
Amortization period 10 years 3 months 18 days  
Intangible Assets, Gross (Excluding Goodwill) $ 546  
Finite-Lived Intangible Assets, Accumulated Amortization 92  
Intangible Assets, Net (Excluding Goodwill) $ 454