Quarterly report pursuant to Section 13 or 15(d)

Disaggregated Revenue (Details)

v3.20.2
Disaggregated Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Disaggregated Revenue        
Sales $ 359,525 $ 431,675 $ 721,123 $ 790,896
Refining Services        
Disaggregated Revenue        
Sales 89,652 116,395 189,418 221,352
Catalysts        
Disaggregated Revenue        
Sales 25,206 21,071 50,023 36,661
Performance Materials        
Disaggregated Revenue        
Sales 104,149 118,768 169,663 179,809
Performance Chemicals        
Disaggregated Revenue        
Sales 140,518 175,441 312,019 353,074
Operating segments        
Disaggregated Revenue        
Sales 362,484 434,847 727,887 798,108
Operating segments | Industrial & process chemicals        
Disaggregated Revenue        
Sales 69,776 95,348 161,139 186,492
Operating segments | Fuels & emission control        
Disaggregated Revenue        
Sales 50,723 63,505 106,474 121,195
Operating segments | Packaging & engineered plastics        
Disaggregated Revenue        
Sales 55,876 66,863 123,172 127,467
Operating segments | Highway safety & construction        
Disaggregated Revenue        
Sales 96,652 107,554 149,484 156,853
Operating segments | Consumer products        
Disaggregated Revenue        
Sales 59,907 65,440 123,933 133,949
Operating segments | Natural resources        
Disaggregated Revenue        
Sales 29,550 36,137 63,685 72,152
Operating segments | Refining Services        
Disaggregated Revenue        
Sales 90,432 117,290 191,123 223,134
Operating segments | Refining Services | Industrial & process chemicals        
Disaggregated Revenue        
Sales 16,713 21,903 36,071 40,305
Operating segments | Refining Services | Fuels & emission control        
Disaggregated Revenue        
Sales 50,681 63,505 106,393 121,195
Operating segments | Refining Services | Packaging & engineered plastics        
Disaggregated Revenue        
Sales 7,473 14,067 18,207 26,756
Operating segments | Refining Services | Highway safety & construction        
Disaggregated Revenue        
Sales 0 0 0 0
Operating segments | Refining Services | Consumer products        
Disaggregated Revenue        
Sales 0 0 0 0
Operating segments | Refining Services | Natural resources        
Disaggregated Revenue        
Sales 15,565 17,815 30,452 34,878
Operating segments | Catalysts        
Disaggregated Revenue        
Sales 25,208 20,857 50,072 36,723
Operating segments | Catalysts | Industrial & process chemicals        
Disaggregated Revenue        
Sales 2 0 49 62
Operating segments | Catalysts | Fuels & emission control        
Disaggregated Revenue        
Sales 0 0 0 0
Operating segments | Catalysts | Packaging & engineered plastics        
Disaggregated Revenue        
Sales 25,206 20,857 50,023 36,661
Operating segments | Catalysts | Highway safety & construction        
Disaggregated Revenue        
Sales 0 0 0 0
Operating segments | Catalysts | Consumer products        
Disaggregated Revenue        
Sales 0 0 0 0
Operating segments | Catalysts | Natural resources        
Disaggregated Revenue        
Sales 0 0 0 0
Operating segments | Performance Materials        
Disaggregated Revenue        
Sales 104,203 118,872 169,772 179,961
Operating segments | Performance Materials | Industrial & process chemicals        
Disaggregated Revenue        
Sales 9,314 12,783 21,438 25,812
Operating segments | Performance Materials | Fuels & emission control        
Disaggregated Revenue        
Sales 42 0 81 0
Operating segments | Performance Materials | Packaging & engineered plastics        
Disaggregated Revenue        
Sales 13,645 17,595 31,115 34,977
Operating segments | Performance Materials | Highway safety & construction        
Disaggregated Revenue        
Sales 78,340 85,257 110,983 112,617
Operating segments | Performance Materials | Consumer products        
Disaggregated Revenue        
Sales 0 0 0 0
Operating segments | Performance Materials | Natural resources        
Disaggregated Revenue        
Sales 2,862 3,237 6,155 6,555
Operating segments | Performance Chemicals        
Disaggregated Revenue        
Sales 142,641 177,828 316,920 358,290
Operating segments | Performance Chemicals | Industrial & process chemicals        
Disaggregated Revenue        
Sales 43,747 60,662 103,581 120,313
Operating segments | Performance Chemicals | Fuels & emission control        
Disaggregated Revenue        
Sales 0 0 0 0
Operating segments | Performance Chemicals | Packaging & engineered plastics        
Disaggregated Revenue        
Sales 9,552 14,344 23,827 29,073
Operating segments | Performance Chemicals | Highway safety & construction        
Disaggregated Revenue        
Sales 18,312 22,297 38,501 44,236
Operating segments | Performance Chemicals | Consumer products        
Disaggregated Revenue        
Sales 59,907 65,440 123,933 133,949
Operating segments | Performance Chemicals | Natural resources        
Disaggregated Revenue        
Sales 11,123 15,085 27,078 30,719
Inter-segment sales eliminations        
Disaggregated Revenue        
Sales (2,959) (3,172) (6,764) (7,212)
Inter-segment sales eliminations | Refining Services        
Disaggregated Revenue        
Sales (780) (895) (1,705) (1,782)
Inter-segment sales eliminations | Catalysts        
Disaggregated Revenue        
Sales (2) 214 (49) (62)
Inter-segment sales eliminations | Performance Materials        
Disaggregated Revenue        
Sales (54) (104) (109) (152)
Inter-segment sales eliminations | Performance Chemicals        
Disaggregated Revenue        
Sales $ (2,123) $ (2,387) $ (4,901) $ (5,216)