Annual report pursuant to Section 13 and 15(d)

Acquisition - Pro Forma Disclosure (Details)

v3.19.3.a.u2
Acquisition - Pro Forma Disclosure (Details) - Sovitec Mondial S.A. - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2017
Business Acquisition    
Pro forma sales   $ 1,488,528
Pro forma net income   58,774
Pro forma net income attributable to PQ Group Holdings Inc.   $ 57,814
Pro forma basic income per share   $ 0.52
Pro forma diluted income per share   $ 0.52
Acquisition-related costs    
Business Acquisition    
Pro forma net income $ 2,515  
Intangible asset amortization    
Business Acquisition    
Pro forma net income   $ 367
Property, plant, and equipment depreciation    
Business Acquisition    
Pro forma net income   $ 760