Annual report pursuant to Section 13 and 15(d)

Acquisition, Goodwill and Other Intangible Assets Final Fair Value of Intangibles (Details)

v3.7.0.1
Acquisition, Goodwill and Other Intangible Assets Final Fair Value of Intangibles (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Mar. 31, 2016
Business Acquisition [Line Items]    
Noncurrent deferred tax liability $ 25,661 $ 29,114
Industrial Process Insulators, Inc. [Member]    
Business Acquisition [Line Items]    
Customer relationships 10,720  
Goodwill 10,204  
Noncurrent deferred tax liability 4,962  
Final Fair Value | Industrial Process Insulators, Inc. [Member]    
Business Acquisition [Line Items]    
Customer relationships 5,962  
Goodwill 13,249  
Noncurrent deferred tax liability $ 3,249