Goodwill and Intangible Assets (Additional Information) (Details) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Jan. 22, 2015
Goodwill and Intangible Assets Disclosure [Line Items]        
Goodwill $ 175,009,000   $ 98,227,000  
Amortization expense 2,400,000 1,500,000    
Annual Future Amortization Expense        
Anticipated future amortization expense for remainder of 2015 8,000,000      
Anticipated future amortization expense for 2016 10,200,000      
Anticipated future amortization expense for 2017 9,900,000      
Anticipated future amortization expense for 2018 9,400,000      
Anticipated future amortization expense for 2019 8,900,000      
Arlon [Member]        
Goodwill and Intangible Assets Disclosure [Line Items]        
Intangible assets       50,020,000
Goodwill       85,379,000
Annual Future Amortization Expense        
Anticipated future amortization expense for remainder of 2015       4,400,000
Anticipated future amortization expense for 2016       5,800,000
Anticipated future amortization expense for 2017       5,800,000
Anticipated future amortization expense for 2018       5,800,000
Anticipated future amortization expense for 2019       5,800,000
Curamik [Member] | Unclassified Indefinite-lived Intangible Assets [Member]        
Annual Future Amortization Expense        
Intangible assets $ 5,300,000