Goodwill and Other Intangible Assets - Components of Other Intangible Assets (Detail) - USD ($) $ in Millions |
Dec. 31, 2023 |
Dec. 31, 2022 |
---|---|---|
Finite Lived Intangible Assets [Line Items] | ||
Gross Carrying Amount | $ 11.4 | |
Accumulated Amortization | (3.6) | |
Net Book Value | $ 0.0 | 7.8 |
Customer Relationships | ||
Finite Lived Intangible Assets [Line Items] | ||
Gross Carrying Amount | 10.4 | |
Accumulated Amortization | (2.8) | |
Net Book Value | 7.6 | |
Trade Names | ||
Finite Lived Intangible Assets [Line Items] | ||
Gross Carrying Amount | 1.0 | |
Accumulated Amortization | (0.8) | |
Net Book Value | $ 0.2 |