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Intangible Assets and Goodwill - Additional Information (Detail) $ in Millions |  |  |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Oct. 31, 2024 USD ($) | Oct. 31, 2023 USD ($) | Oct. 31, 2022 USD ($) | Jan. 31, 2022 USD ($) Segment | Dec. 31, 2024 USD ($) | Sep. 30, 2024 USD ($) | Mar. 31, 2022 USD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Oct. 31, 2021 USD ($)
Schedule Of Intangible Assets Excluding Goodwill [Line Items] |  |  |  |  |  |  |  |  |  |  |
Amortization expense |  |  |  |  |  |  |  | $ 27.3 | $ 44.0 | $ 56.1 |
Intangible asset impairment charge |  |  |  |  |  |  |  | $ 7.3 | 0.0 | 1.6 |
Impairment of indefinite-lived intangible assets |  |  |  |  |  |  |  |  | $ 0.0 |  |
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  |  |  |  |  |  | Intangible asset impairment charge |  |  |
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  |  |  |  |  |  |  | Intangible asset impairment charge |  |
Impairment charges of long-lived assets remaining of fair value |  |  |  |  | $ 0.0 |  |  |  |  |  |
Number of reporting units | Segment |  |  |  | 1 |  |  |  |  |  |  |
Goodwill impairment charge | $ 0.0 | $ 0.0 | $ 0.0 |  |  |  |  | $ 0.0 | $ 0.0 | 6.3 |
Goodwill |  |  |  |  | 573.8 |  |  | 573.8 | 553.9 | 545.5 |
Fair value of goodwill |  |  |  |  |  |  | $ 3.1 |  | $ 25.6 |  | $ 214.6
Accumulated goodwill impairment charges |  |  |  |  | $ 686.0 |  |  | $ 686.0 |  |  |
Maximum [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule Of Intangible Assets Excluding Goodwill [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated future net cash flows discounted rate |  |  |  |  |  |  | 3.00% |  |  |  |
Weighted average cost of capital discount rate |  |  |  |  | 11.80% |  | 15.50% | 11.80% | 15.50% |  |
Percentage of fair value of reporting unit exceeding carry value | 234.9 | 241.5 | 1,809.5 |  |  |  |  |  | 10 |  |
Maximum [Member] | Headroom [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule Of Intangible Assets Excluding Goodwill [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of fair value of reporting unit exceeding carry value |  |  |  |  |  |  |  |  |  |  | 5.00%
Minimum [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule Of Intangible Assets Excluding Goodwill [Line Items] |  |  |  |  |  |  |  |  |  |  |
Estimated future net cash flows discounted rate |  |  |  |  |  |  | 0.00% |  |  |  |
Weighted average cost of capital discount rate |  |  |  |  | 10.60% |  | 12.80% | 10.60% | 13.00% |  |
Percentage of fair value of reporting unit exceeding carry value | 41 | 4.2 | 53.2 |  |  |  |  |  |  |  |
Connections [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule Of Intangible Assets Excluding Goodwill [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill impairment charge |  |  |  |  |  |  | $ 6.0 |  |  |  |
Goodwill |  |  |  |  | $ 538.2 |  |  | $ 538.2 | $ 518.3 |  |
All Other Category [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule Of Intangible Assets Excluding Goodwill [Line Items] |  |  |  |  |  |  |  |  |  |  |
Goodwill impairment charge |  |  |  |  |  |  | $ 0.3 |  |  |  |
Goodwill |  |  |  |  | 35.6 |  |  | 35.6 | $ 35.6 |  |
Trade Names [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule Of Intangible Assets Excluding Goodwill [Line Items] |  |  |  |  |  |  |  |  |  |  |
Impairment of indefinite-lived intangible assets |  |  |  |  | $ 0.6 |  |  |  |  |  |
Trade Names [Member] | Connections [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule Of Intangible Assets Excluding Goodwill [Line Items] |  |  |  |  |  |  |  |  |  |  |
Impairment of definite-lived intangible asset |  |  |  |  |  |  |  | $ 0.4 |  |  |
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  |  |  |  |  |  | Intangible asset impairment charge |  |  |
Trademarks and Trade Names [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule Of Intangible Assets Excluding Goodwill [Line Items] |  |  |  |  |  |  |  |  |  |  |
Impairment of indefinite-lived intangible assets |  |  |  | $ 1.6 |  | $ 6.3 |  |  |  | 1.6 |
Impairment charges of indefinite-lived intangible assets remaining of fair value | $ 1.1 |  |  |  |  |  |  |  |  |  |
Trademarks and Trade Names [Member] | Connections [Member] |  |  |  |  |  |  |  |  |  |  |
Schedule Of Intangible Assets Excluding Goodwill [Line Items] |  |  |  |  |  |  |  |  |  |  |
Impairment of indefinite-lived intangible assets |  |  |  |  |  |  |  | $ 6.9 |  | $ 1.6 |

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