Debt and Financing Arrangements - Classification of the Company Lease Obligations (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Operating Lease Obligations:
Operating Lease Obligations (current portion)	$ 1.9	$ 1.5
Operating Lease Obligations (current portion)	Liabilities, Current	Liabilities, Current
Operating Lease Obligations (long-term portion)	$ 3.7	$ 2.8
Operating Lease Obligations (long-term portion)	Liabilities, Noncurrent	Liabilities, Noncurrent
Total Operating Lease Obligations	$ 5.6	$ 4.3
Capital Lease Obligations:
Other Current Liabilities (current portion)	$ 0.1	$ 0.1
Other Current Liabilities (current portion)	Other Liabilities, Current	Other Liabilities, Current
Other Noncurrent Liabilities (long-term portion)	$ 0.4	$ 0.1
Other Noncurrent Liabilities (long-term portion)	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Total Capital Lease Obligations	$ 0.5	$ 0.2
Total Lease Obligations	6.1	$ 4.5
Lease Obligations [Member]
Operating Lease Obligations:
Total Operating Lease Obligations	$ 5,561.0

No definition available.

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147478964/842-20-50-6

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-1

+ Details

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-1

+ Details

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- Definition

Indicates line item in statement of financial position that includes current finance lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-2

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent.

+ References

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- Definition

Indicates line item in statement of financial position that includes noncurrent finance lease liability.

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- References

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

+ References

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- Definition

Indicates line item in statement of financial position that includes current operating lease liability.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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Indicates line item in statement of financial position that includes noncurrent operating lease liability.

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- Definition

Lease obligation.

+ References

No definition available.

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