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Goodwill and Other Intangible Assets - Net Intangible Assets (Detail) $ in Millions | 9 Months Ended
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Sep. 30, 2022 USD ($)
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |
Intangible assets with finite lives, Beginning balance | $ 81.8 |
Foreign Currency Translation Adjustments, Gross carrying amount | 0.1 |
Other finite lived intangible assets gross | 0.2 | [1]
Intangible assets with finite lives, Ending balance | 81.7 |
Intangible assets with finite lives, Accumulated amortization, Beginning balance | (71.1) |
Accumulated amortization | (1.8) |
Other finite lived intangible accumulated amortization | 0.2 | [1]
Intangible assets with finite lives, Accumulated amortization, Ending balance | (72.7) |
Net intangible assets with finite lives, Beginning balance | 10.7 |
Amortization, intangible assets | (1.8) |
Foreign Currency Translation Adjustments, Finite lived intangible assets | 0.1 |
Net intangible assets with finite lives, Ending balance | 9.0 |
Indefinite-lived Intangible Assets, Tradename and Other, Beginning Balance | 300.1 |
Indefinite-lived Intangible Assets, Tradename and Other, Ending Balance | 300.1 |
Total intangible assets - net, Beginning balance | 310.8 |
Amortization, Total intangible assets net | (1.8) |
Foreign Currency Translation Adjustments, Total intangible assets - net | 0.1 |
Total intangible assets - net, Ending balance | $ 309.1 |
[1] | Amounts represent the write-off of non-compete agreements that expired during the nine months ended September 30, 2022.

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- 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. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 + Details
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