Summary of Significant Accounting Policies - Sale of Assets Related to Industrial Portion of Royal Purple Business (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||||
|---|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Sep. 30, 2025 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Feb. 28, 2025 |
|
| Summary of Significant Accounting Policies | |||||||
| Proceeds from sale of business, net | $ 0.0 | $ 95.4 | |||||
| Gain on sale of business | $ 0.0 | $ 0.0 | $ 0.0 | 62.2 | |||
| Industrial portion of Royal Purple business | |||||||
| Summary of Significant Accounting Policies | |||||||
| Sale of industrial portion | $ 110.0 | ||||||
| Proceeds from sale of business, net | $ 96.9 | ||||||
| Deferred payment to be received in 2026 | $ 1.5 | ||||||
| Gain on sale of business | $ 55.8 | $ 62.2 | |||||