Annual report pursuant to Section 13 and 15(d)

Business Combination - Intangible Assets Acquired (Details)

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Business Combination - Intangible Assets Acquired (Details) - PQ Holdings, Eco Services
$ in Thousands
May 04, 2016
USD ($)
Business Acquisition  
Intangible assets subject to amortization: $ 520,000
Total 754,000
Trade names  
Business Acquisition  
Intangible assets not subject to amortization 151,100
Trademarks  
Business Acquisition  
Intangible assets not subject to amortization 82,900
Trademarks  
Business Acquisition  
Intangible assets subject to amortization: $ 35,400
Finite lived intangible assets useful life 15 years
Technical know-how  
Business Acquisition  
Intangible assets subject to amortization: $ 189,300
Finite lived intangible assets useful life 20 years
Contracts  
Business Acquisition  
Intangible assets subject to amortization: $ 19,800
Finite lived intangible assets useful life 5 years 3 months 18 days
Customer relationships  
Business Acquisition  
Intangible assets subject to amortization: $ 268,700
Finite lived intangible assets useful life 10 years 7 months 6 days
In-process research and development  
Business Acquisition  
Intangible assets subject to amortization: $ 6,800