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Leases (Tables) | 12 Months Ended
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Dec. 31, 2024
Leases [Abstract] |
Components of Lease Expense | The components of lease expense were as follows:
(in millions) |  | Twelve Months Ended December 31 |  |  | Twelve Months Ended December 31 |  |  | Twelve Months Ended December 31 |
|  | 2024 |  |  | 2023 |  |  | 2022 |
Operating lease cost |  |  | 17.1 |  |  |  | 17.9 |  |  |  | 15.6 |
Short-term lease cost |  |  | 8.7 |  |  |  | 8.1 |  |  |  | 7.2 |
Variable lease cost |  |  | — |  |  |  | — |  |  |  | 0.3 |
Total lease cost |  | $ | 25.8 |  |  | $ | 26.0 |  |  | $ | 23.1 |
Supplemental Cash Flow Information Related to Leases | Supplemental cash flow information related to leases is as follows:
(in millions) |  | Twelve Months Ended December 31 |  |  | Twelve Months Ended December 31 |  |  | Twelve Months Ended December 31 |
|  | 2024 |  |  | 2023 |  |  | 2022 |
Cash paid for amounts included in the measurement of lease liabilities: |  |  |  |  |  |  |  |  |
Operating cash flows from operating leases |  | $ | 25.9 |  |  | $ | 26.1 |  |  | $ | 23.1 |
Operating cash flows from finance leases |  |  | — |  |  |  | — |  |  |  | 0.1 |
Right-of-use assets obtained in exchange for new lease obligations: |  |  |  |  |  |  |  |  |
Operating leases |  | $ | 7.7 |  |  | $ | 7.8 |  |  | $ | 14.9 |
Supplemental Balance Sheet Information Related to Leases | Supplemental balance sheet information related to leases is as follows:
(in millions except lease term and discount rate) |  | December 31, 2024 |  |  | December 31, 2023 |
Operating leases: |  |  |  |  |  |
Operating lease right-of-use assets |  | $ | 44.8 |  |  | $ | 45.1 |
Current portion of operating lease liabilities |  | $ | 13.9 |  |  | $ | 13.6 |
Operating lease liabilities, net of current portion |  |  | 31.0 |  |  |  | 31.6 |
Total operating lease liabilities |  | $ | 44.9 |  |  | $ | 45.2 |
Weighted average remaining lease term: |  |  |  |  |  |
Operating leases |  | 5.6 years |  |  | 6.2 years |
Weighted average discount rate: |  |  |  |  |  |
Operating leases |  |  | 3.8 | % |  |  | 3.5 | %
Maturities of Lease Liabilities | Maturities of lease liabilities were as follows as at December 31, 2024:
(in millions) |  | Operating Leases |
Within one year |  | $ | 14.3 |
Year two |  |  | 9.8 |
Year three |  |  | 5.7 |
Year four |  |  | 5.1 |
Year five |  |  | 3.9 |
Thereafter |  |  | 11.7 |
Total lease payments |  |  | 50.5 |
Less imputed interest |  |  | (5.6 | )
Total |  | $ | 44.9 |
As of December 31, 2024, additional operating and finance leases that have not yet commenced are $0.3 million. Maturities of lease liabilities were as follows as at December 31, 2023:
(in millions) |  | Operating Leases |
Within one year |  | $ | 14.0 |
Year two |  |  | 10.0 |
Year three |  |  | 7.3 |
Year four |  |  | 3.3 |
Year five |  |  | 3.0 |
Thereafter |  |  | 12.6 |
Total lease payments |  |  | 50.2 |
Less imputed interest |  |  | (5.0 | )
Total |  | $ | 45.2 |

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
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