Quarterly report pursuant to Section 13 or 15(d)

Earnings per Share - Reconciliation of Net Income (Loss) (Details)

v3.19.1
Earnings per Share - Reconciliation of Net Income (Loss) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Numerator:    
Net income attributable to PQ Group Holdings Inc. $ 3,151 $ 214
Denominator:    
Weighted average shares outstanding – Basic (shares) 133,946,308 133,154,144
Weighted average shares outstanding – Diluted (shares) 134,894,354 133,884,983
Net income per share:    
Basic income per share (usd per share) $ 0.02 $ 0.00
Diluted income per share (usd per share) $ 0.02 $ 0.00