Annual report pursuant to Section 13 and 15(d)

Earnings per Share - Reconciliation of Net Income (Details)

v3.22.0.1
Earnings per Share - Reconciliation of Net Income (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Numerator:                      
Net income attributable to PQ Group Holdings Inc. $ 25,435 $ (71,259) $ (1,490) $ (92,635) $ (302,434) $ 7,514 $ 15,925 $ 224 $ (139,949) $ (278,771) $ 79,539
Denominator:                      
Weighted average shares outstanding – Basic (shares) 136,256,601 136,129,591 136,095,060 136,006,082 135,406,081 135,106,969 135,083,126 135,240,897 136,167,384 135,528,977 134,389,667
Weighted average shares outstanding – Diluted (shares) 137,528,028 137,354,427 136,095,060 136,006,082 136,284,272 135,106,969 135,671,830 135,240,897 137,708,931 136,450,953 135,548,694
Net (loss) income per share:                      
Basic (loss) income per share $ 0.19 $ (0.52) $ (0.01) $ (0.68) $ (2.23) $ 0.06 $ 0.12 $ 0 $ (1.03) $ (2.06) $ 0.59
Diluted (loss) income per share $ 0.18 $ (0.52) $ (0.01) $ (0.68) $ (2.22) $ 0.06 $ 0.12 $ 0 $ (1.02) $ (2.04) $ 0.59