Annual report pursuant to Section 13 and 15(d)

Reportable Segments - Summary Financial Information by Reportable Segment (Details)

v3.19.3.a.u2
Reportable Segments - Summary Financial Information by Reportable Segment (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Sales $ 352,375 $ 423,801 $ 431,675 $ 359,221 $ 380,041 $ 427,203 $ 434,713 $ 366,197 $ 1,567,072 $ 1,608,154 $ 1,472,101
Equity in net income from affiliated companies                 46,034 37,611 38,772
Charges related to purchase accounting fair value adjustments                 (7,534) (6,634)  
Refining Services                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Sales                 443,683 452,325  
Catalysts                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Sales                 85,558 72,013  
Performance Materials                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Sales                 362,740 377,979  
Performance Chemicals                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Sales                 675,091 705,837  
Operating segments                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Sales                 1,580,850 1,623,275  
Segment Adjusted EBITDA                 514,424 500,923 483,715
Operating segments | Refining Services                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Sales                 447,081 455,562 398,342
Segment Adjusted EBITDA                 175,640 176,499 154,191
Operating segments | Catalysts                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Sales                 85,667 72,099 75,333
Segment Adjusted EBITDA                 107,808 81,067 89,396
Operating segments | Performance Materials                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Sales                 362,965 378,279 324,225
Segment Adjusted EBITDA                 76,712 72,471 69,661
Operating segments | Performance Chemicals                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Sales                 685,137 717,335 687,645
Segment Adjusted EBITDA                 154,264 170,886 170,467
Eliminations                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Sales                 (13,778) (15,121) (13,444)
Zeolyst Joint Venture | Catalysts                      
Segment Reporting, Revenue Reconciling Item [Line Items]                      
Sales                 170,338 156,687 143,774
Segment Adjusted EBITDA                 68,138 56,663 58,156
Equity in net income from affiliated companies                 45,899 37,437 38,486
Charges related to purchase accounting fair value adjustments                 7,534 6,634 8,600
Joint venture depreciation, amortization, and interest                 $ 14,705 $ 12,592 $ 11,070