Quarterly report pursuant to Section 13 or 15(d)

Acquisition - Pro Forma Disclosure (Details)

v3.10.0.1
Acquisition - Pro Forma Disclosure (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Business Acquisition        
Pro forma sales   $ 397,251   $ 738,625
Pro forma net loss   (2,629)   (4,162)
Pro forma net loss attributable to PQ Group Holdings Inc.   $ (2,568)   $ (4,240)
Pro forma basic and diluted net loss per share (usd per share)   $ (0.02)   $ (0.04)
Sovitec Mondial S.A.        
Business Acquisition        
Pro forma sales $ 19,326 $ 3,704 $ 30,247 $ 3,704
Net income $ 2,585 $ 503 $ 814 $ 503