Goodwill And Intangible Assets (Changes To Intangible Assets) (Detail) - USD ($) $ in Millions |
6 Months Ended | 12 Months Ended |
|---|---|---|
Jun. 30, 2025 |
Dec. 31, 2024 |
|
| Finite-Lived Intangible Assets [Roll Forward] | ||
| Balance at beginning of period, net of accumulated amortization | $ 159.9 | $ 87.1 |
| Additions | 0.0 | 92.4 |
| Amortization expense | (7.3) | (17.6) |
| Currency translation and other | 3.5 | (2.0) |
| Balance at end of period, net of accumulated amortization | $ 156.1 | $ 159.9 |
| X | ||||||||||
- Definition Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life or definite life, from an acquisition. No definition available.
|
| X | ||||||||||
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of foreign currency translation gain (loss) which increases (decreases) assets, excluding financial assets and goodwill, lacking physical substance with a finite life. No definition available.
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|