v3.26.3
Segment Information - Net Sales and Segment Operating Profit (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Apr. 01, 2026
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting, Profit (Loss)          
Segment EBITDA   $ 114.7 $ 121.7 $ 337.6 $ 336.4
Interest expense, net   (13.5) (18.4) (43.6) (56.4)
(Provision) benefit for income taxes on continuing operations   (17.8) (21.4) (35.5) (34.7)
Depreciation and amortization   (20.9) (27.7) (65.6) (77.4)
Gain on sale of business [1]       59.6 0.0
Restructuring and other income (charges), net   (0.2) (1.0) (2.4) (10.1)
Goodwill impairment charge   0.0 0.0 0.0 (183.8)
Long-lived asset impairment charge   0.0 0.0 (32.1) [1] 0.0 [1]
Gain (loss) on strategic investment   0.0 0.0 0.0 (2.5)
Impairment of license agreement   0.0 0.0 (2.8) 0.0
Proxy contest charges   0.0 0.0 0.0 (8.2)
Portfolio realignment costs   (1.5) (1.1) (7.6) (1.1)
Litigation charge     0.0   0.0
Corporate and other   (6.7) (7.8) (23.1) (24.0)
Indirect costs allocated to Divestiture   0.0 (3.5) 0.0 (9.7)
Net income (loss) from continuing operations   51.1 40.8 114.3 (71.5)
BASF Lawsuit          
Segment Reporting, Profit (Loss)          
Litigation charge $ (16.2) 0.0   (16.2)  
Performance Materials          
Segment Reporting, Profit (Loss)          
Segment EBITDA   83.4 83.8 261.5 248.3
Pavement Technologies          
Segment Reporting, Profit (Loss)          
Segment EBITDA   19.6 26.9 45.6 61.5
Gain on sale of business   (3.0) 0.0 5.6 0.0
Advanced Polymer Technologies          
Segment Reporting, Profit (Loss)          
Segment EBITDA   $ 11.7 $ 11.0 $ 30.5 $ 26.6
[1] The cash flows related to discontinued operations have not been segregated and remain included in the major classes of assets and liabilities. Accordingly, the condensed consolidated statements of cash flows include the results of continuing and discontinued operations.