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           Acquisitions (Details) 
        In Thousands, unless otherwise specified  | 
        
           Mar. 31, 2013
 
          Kroma Pre-Press Preparation Systems Industry & Trade, Inc. ("Kroma") [Member] 
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           Jul. 31, 2011
 
          Kroma Pre-Press Preparation Systems Industry & Trade, Inc. ("Kroma") [Member] 
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           Mar. 31, 2013
 
          Furnace Construction Cremators Limited ("FCC") [Member] 
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           Mar. 31, 2010
 
          Furnace Construction Cremators Limited ("FCC") [Member] 
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           Dec. 31, 2012
 
          Pyramid Control Systems [Member]
 
          USD ($) 
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           Nov. 30, 2012
 
          Wetzel Holding AG [Member]
 
          USD ($) 
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           Nov. 30, 2012
 
          Wetzel Holding AG [Member]
 
          EUR (€) 
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|---|---|---|---|---|---|---|---|
| Business Acquisition [Line Items] | |||||||
| Interest acquired (in hundredths) | 38.50% | 61.50% | 20.00% | 80.00% | |||
| Purchase price of acquisition | $ 24,532 | $ 54,748 | € 42,600 | ||||
| Additional purchase price of acquisition | $ 3,700 | 
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- Definition 
          Amount of cash paid to acquire the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
          
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- Definition 
          Percentage of voting equity interests acquired in the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          For transactions that are recognized separately from the acquisition of assets and assumptions of liabilities in the business combination, such as related to pre-existing relationships with the acquiree, this element represents the disclosure of the amount of acquisition related costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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