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Acquisition and Divestitures - Schedule of Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($)
$ in Thousands
 12 Months Ended
Nov. 01, 2016
Dec. 31, 2017
Dec. 31, 2016
Business Acquisition [Line Items]      
Goodwill   $ 211,040 $ 211,063
Blackhawk      
Business Acquisition [Line Items]      
Current assets, excluding cash $ 23,626 23,626  
Property, plant and equipment 45,091 45,146  
Property, plant and equipment, measurement period adjustments   55  
Other long-term assets 3,139 3,139  
Intangible assets 41,972 42,125  
Intangible assets, measurement period adjustments   153  
Assets acquired 113,828 114,036  
Assets acquired, measurement period adjustments   208  
Current liabilities assumed 11,132 11,317  
Current liabilities assumed, measurement period adjustments   185  
Other long-term liabilities 542 542  
Liabilities assumed 11,674 11,859  
Liabilities assumed, measurement period adjustments   185  
Fair value of net assets acquired 102,154 102,177  
Fair value of net assets acquired, measurement period adjustments   23  
Total consideration transferred 294,563 294,563  
Goodwill $ 192,409 192,386  
Goodwill, measurement period adjustments   $ (23)