Goodwill (Tables)
   | 
9 Months Ended | 
Dec. 31, 2015  | 
| Acquired Finite-Lived Intangible Assets [Line Items] | 
 
 | 
| Schedule of Business Acquisitions, by Acquisition | 
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 | 
 | 
 | 
 | 
 
Consideration to or on behalf of sellers at close  | 
$  | 
3,890  | 
 
  | 
 
Fair value of total consideration transferred  | 
$  | 
3,890  | 
 
  | 
 
  
 |  
 | 
 | 
 | 
 | 
 
Consideration to or on behalf of sellers at close  | 
$  | 
10,956  | 
 
  | 
 
Fair value of total consideration transferred  | 
$  | 
10,956  | 
 
  | 
 
  
 | 
| Schedule of Recognized Identified Assets Acquired and Liabilities Assumed | 
The following table summarizes the preliminary fair value of the assets and liabilities assumed:
 |  
 | 
 | 
 | 
 | 
 
Assets acquired:  | 
   | 
 
     Accounts receivable  | 
$  | 
1,693  | 
 
  | 
 
     Inventories  | 
1,299  | 
 
     Other current assets  | 
123  | 
 
     Property, plant and equipment  | 
1,316  | 
 
     Identifiable intangible assets  | 
2,645  | 
 
     Goodwill  | 
9,255  | 
 
Total assets  | 
16,331  | 
 
  | 
 
Liabilities assumed:  | 
   | 
 
     Current liabilities  | 
1,025  | 
 
     Noncurrent deferred tax liability  | 
714  | 
 
Total liabilities  | 
1,739  | 
 
  | 
 
Non-controlling interests  | 
3,636  | 
 
  | 
 
Total consideration  | 
$  | 
10,956  | 
 
  | 
 
  
  
The following table summarizes the preliminary fair value of the assets and liabilities assumed:
 |  
 | 
 | 
 | 
 | 
 
Assets acquired:  | 
   | 
 
     Accounts receivable  | 
$  | 
1,346  | 
 
  | 
 
     Inventories  | 
655  | 
 
     Other current assets  | 
21  | 
 
     Property, plant and equipment  | 
77  | 
 
     Identifiable intangible assets  | 
1,294  | 
 
     Goodwill  | 
1,630  | 
 
Total assets  | 
5,023  | 
 
  | 
 
Liabilities assumed:  | 
   | 
 
     Current liabilities  | 
415  | 
 
     Noncurrent deferred tax liability  | 
718  | 
 
Total liabilities  | 
1,133  | 
 
  | 
 
Total consideration  | 
$  | 
3,890  | 
 
  | 
 
  
  
 | 
| Schedule of Intangible Assets | 
Other intangible assets related to previous transactions consisted of the following:  
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 | 
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 | 
 | 
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   | 
   | 
Gross Carrying Amount at December 31, 2015  | 
   | 
Accumulated Amortization  | 
   | 
Net Carrying Amount at December 31, 2015  | 
   | 
Gross Carrying Amount at March 31, 2015  | 
   | 
Accumulated Amortization  | 
   | 
Net Carrying Amount at March 31, 2015  | 
 
Trademarks  | 
   | 
$  | 
41,972  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
41,972  | 
 
  | 
   | 
$  | 
43,034  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
   | 
$  | 
43,034  | 
 
  | 
 
Developed technology  | 
   | 
9,619  | 
 
  | 
   | 
2,764  | 
 
  | 
   | 
6,855  | 
 
  | 
   | 
9,862  | 
 
  | 
   | 
2,469  | 
 
  | 
   | 
7,393  | 
 
  | 
 
Customer relationships  | 
   | 
90,345  | 
 
  | 
   | 
50,037  | 
 
  | 
   | 
40,308  | 
 
  | 
   | 
92,581  | 
 
  | 
   | 
44,195  | 
 
  | 
   | 
48,386  | 
 
  | 
 
Backlog  | 
   | 
8,828  | 
 
  | 
   | 
8,828  | 
 
  | 
   | 
—  | 
 
  | 
   | 
9,129  | 
 
  | 
   | 
9,129  | 
 
  | 
   | 
—  | 
 
  | 
 
Certification  | 
   | 
438  | 
 
  | 
   | 
—  | 
 
  | 
   | 
438  | 
 
  | 
   | 
449  | 
 
  | 
   | 
—  | 
 
  | 
   | 
449  | 
 
  | 
 
Other  | 
   | 
1,630  | 
 
  | 
   | 
1,508  | 
 
  | 
   | 
122  | 
 
  | 
   | 
1,630  | 
 
  | 
   | 
1,317  | 
 
  | 
   | 
313  | 
 
  | 
 
Total  | 
   | 
$  | 
152,832  | 
 
  | 
   | 
$  | 
63,137  | 
 
  | 
   | 
$  | 
89,695  | 
 
  | 
   | 
$  | 
156,685  | 
 
  | 
   | 
$  | 
57,110  | 
 
  | 
   | 
$  | 
99,575  | 
 
  | 
 
  
 
 | 
| Schedule of carrying amount of goodwill | 
The carrying amount of goodwill as of December 31, 2015 is as follows:
 |  
 | 
 | 
 | 
 | 
 
   | 
Amount  | 
 
Balance as of March 31, 2015  | 
$  | 
105,232  | 
 
  | 
 
Goodwill acquired  | 
19,459  | 
 
  | 
 
Foreign currency translation impact  | 
(4,231  | 
)  | 
 
Balance as of December 31, 2015  | 
$  | 
120,460  | 
 
  | 
 
  
  
 | 
| Industrial Process Insulators, Inc. | 
 
 | 
| Acquired Finite-Lived Intangible Assets [Line Items] | 
 
 | 
| Schedule of Business Acquisitions, by Acquisition | 
 |  
 | 
 | 
 | 
 | 
 
Consideration to or on behalf of sellers at close  | 
$  | 
21,750  | 
 
  | 
 
Fair value of total consideration transferred  | 
$  | 
21,750  | 
 
  | 
 
  
 | 
| Schedule of Recognized Identified Assets Acquired and Liabilities Assumed | 
The following table summarizes the preliminary fair value of the assets and liabilities assumed:
 |  
 | 
 | 
 | 
 | 
 
Assets acquired:  | 
 
  | 
 
Cash  | 
$  | 
1,526  | 
 
  | 
 
     Accounts receivable  | 
3,723  | 
 
  | 
 
Inventories  | 
474  | 
 
  | 
 
     Other current assets  | 
204  | 
 
     Property, plant and equipment  | 
119  | 
 
     Identifiable intangible assets  | 
13,784  | 
 
     Goodwill  | 
10,204  | 
 
Total assets  | 
30,034  | 
 
  | 
 
Liabilities assumed:  | 
 
  | 
 
     Current liabilities  | 
2,203  | 
 
Uncertain tax position liability  | 
1,119  | 
 
  | 
 
     Noncurrent deferred tax liability  | 
4,962  | 
 
Total liabilities  | 
8,284  | 
 
  | 
 
Total consideration  | 
$  | 
21,750  | 
 
  | 
 
  
  
 | 
| Schedule of Intangible Assets | 
Our provisional estimate of identifiable intangible assets at December 31, 2015 that were related to the IPI transaction consisted of the following: 
 |  
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
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   | 
Amortization period  | 
   | 
Gross Carrying Amount at December 31, 2015  | 
   | 
Accumulated Amortization  | 
   | 
Net Carrying Amount at December 31, 2015  | 
 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
Order backlog  | 
6 months  | 
   | 
$  | 
437  | 
 
  | 
   | 
$  | 
364  | 
 
  | 
   | 
$  | 
73  | 
 
  | 
 
Customer relationships  | 
10 years  | 
   | 
10,720  | 
 
  | 
   | 
447  | 
 
  | 
   | 
10,273  | 
 
  | 
 
Trademark  | 
8 years  | 
   | 
1,820  | 
 
  | 
   | 
95  | 
 
  | 
   | 
1,725  | 
 
  | 
 
Other  | 
3 years  | 
   | 
807  | 
 
  | 
   | 
112  | 
 
  | 
   | 
695  | 
 
  | 
 
Total  | 
   | 
   | 
$  | 
13,784  | 
 
  | 
   | 
$  | 
1,018  | 
 
  | 
   | 
$  | 
12,766  | 
 
  | 
 
  
 
 | 
| Sumac Fabrication Company Limited | 
 
 | 
| Acquired Finite-Lived Intangible Assets [Line Items] | 
 
 | 
| Schedule of Intangible Assets | 
Our provisional estimate of identifiable intangible assets at December 31, 2015 that were related to the Sumac transaction consisted of the following: 
 |  
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 
   | 
Amortization period  | 
   | 
Gross Carrying Amount at December 31, 2015  | 
   | 
Accumulated Amortization  | 
   | 
Net Carrying Amount at December 31, 2015  | 
 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
Backlog  | 
6 months  | 
   | 
$  | 
170  | 
 
  | 
   | 
$  | 
170  | 
 
  | 
   | 
$  | 
—  | 
 
  | 
 
Customer relationships  | 
3 years  | 
   | 
1,705  | 
 
  | 
   | 
426  | 
 
  | 
   | 
1,279  | 
 
  | 
 
Other  | 
10.3 years  | 
   | 
546  | 
 
  | 
   | 
92  | 
 
  | 
   | 
454  | 
 
  | 
 
Total  | 
   | 
   | 
$  | 
2,421  | 
 
  | 
   | 
$  | 
688  | 
 
  | 
   | 
$  | 
1,733  | 
 
  | 
 
  
 
 | 
| Unitemp | 
 
 | 
| Acquired Finite-Lived Intangible Assets [Line Items] | 
 
 | 
| Schedule of Intangible Assets | 
  
Our provisional estimate of identifiable intangible assets that were related to the Unitemp Transaction consisted of the following: 
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   | 
Amortization period  | 
   | 
Gross Carrying Amount at December 31, 2015  | 
   | 
Accumulated Amortization  | 
   | 
Net Carrying Amount at December 31, 2015  | 
   | 
Gross Carrying Amount at March 31, 2015  | 
   | 
Accumulated Amortization  | 
   | 
Net Carrying Amount at March 31, 2015  | 
 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
   | 
 
Trademarks  | 
8 years  | 
   | 
$  | 
612  | 
 
  | 
   | 
$  | 
64  | 
 
  | 
   | 
$  | 
548  | 
 
  | 
   | 
$  | 
780  | 
 
  | 
   | 
$  | 
8  | 
 
  | 
   | 
$  | 
772  | 
 
  | 
 
Developed Technology  | 
3 years  | 
   | 
84  | 
 
  | 
   | 
23  | 
 
  | 
   | 
61  | 
 
  | 
   | 
107  | 
 
  | 
   | 
3  | 
 
  | 
   | 
104  | 
 
  | 
 
Customer Relationships  | 
5 years  | 
   | 
288  | 
 
  | 
   | 
48  | 
 
  | 
   | 
240  | 
 
  | 
   | 
368  | 
 
  | 
   | 
6  | 
 
  | 
   | 
362  | 
 
  | 
 
Total  | 
   | 
   | 
$  | 
984  | 
 
  | 
   | 
$  | 
135  | 
 
  | 
   | 
$  | 
849  | 
 
  | 
   | 
$  | 
1,255  | 
 
  | 
   | 
$  | 
17  | 
 
  | 
   | 
$  | 
1,238  | 
 
  | 
 
  
 
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