Annual report pursuant to Section 13 and 15(d)

Leases - Summary of Lease Assets and Liabilities Recognized Within Consolidated Balance Sheets (Detail)

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Leases - Summary of Lease Assets and Liabilities Recognized Within Consolidated Balance Sheets (Detail) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
ASSETS    
Operating lease right-of-use assets $ 185.7 $ 185.8
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Operating lease right-of-use assets Operating lease right-of-use assets
Finance lease right-of-use assets $ 1.9 $ 1.6
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Property, plant, and equipment, at cost, net of accumulated depreciation and amortization Property, plant, and equipment, at cost, net of accumulated depreciation and amortization
Total lease assets $ 187.6 $ 187.4
Current liabilities:    
Operating lease liabilities $ 39.7 $ 39.5
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Other current liabilities Other current liabilities
Finance lease liabilities $ 0.8 $ 0.8
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] Current portion of long-term debt Current portion of long-term debt
Non-current:    
Non-current operating lease liabilities $ 169.5 $ 167.6
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Non-current operating lease liabilities Non-current operating lease liabilities
Finance lease liabilities $ 1.2 $ 0.9
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Long-term debt, net of current portion Long-term debt, net of current portion
Total lease liabilities $ 211.2 $ 208.8