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Goodwill and Intangible Assets - Goodwill Associated with Reportable Segments (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Dec. 31, 2012
Segment Reporting Information [Line Items]      
Goodwill $ 193,050 $ 150,909 $ 150,733
Advanced Manufacturing Capital Equipment [Member]
     
Segment Reporting Information [Line Items]      
Goodwill 184,382 142,241  
Analytical Solutions Group [Member]
     
Segment Reporting Information [Line Items]      
Goodwill 8,668 8,668  
Europe Region Sales & Service Operations [Member]
     
Segment Reporting Information [Line Items]      
Goodwill        
Asia Region Sales & Service Operations [Member]
     
Segment Reporting Information [Line Items]      
Goodwill