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Leases (Tables) | 12 Months Ended
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Dec. 31, 2020
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 |
|  | 2020 |  |  | 2019 |
Finance lease cost: |  |  |  |  |  |  |  |
Amortization of right-of-use assets |  | $ | 1.0 |  |  | $ | 1.7 |
Interest on lease liabilities |  |  | 0.0 |  |  |  | 0.0 |
Total finance lease cost |  |  | 1.0 |  |  |  | 1.7 |
Operating lease cost |  |  | 12.8 |  |  |  | 12.1 |
Short-term lease cost |  |  | 3.2 |  |  |  | 2.5 |
Variable lease cost |  |  | 0.3 |  |  |  | 0.3 |
Total lease cost |  | $ | 17.3 |  |  | $ | 16.6 |
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 |
|  | 2020 |  |  | 2019 |
Cash paid for amounts included in the measurement of lease liabilities: |  |  |  |  |  |  |  |
Operating cash flows from operating leases |  | $ | 15.9 |  |  | $ | 14.3 |
Operating cash flows from finance leases |  |  | 1.2 |  |  |  | 2.1 |
Finance cash flows from finance leases |  |  | 0.0 |  |  |  | 0.0 |
Right-of-use assets obtained in exchange for new lease obligations: |  |  |  |  |  |  |  |
Operating leases |  | $ | 5.7 |  |  | $ | 4.3 |
Finance leases |  |  | 0.0 |  |  |  | 0.0 |
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 2020 |  |  | December 31 2019 |
Operating leases: |  |  |  |  |  |  |  |
Operating lease right-of-use assets |  | $ | 40.1 |  |  | $ | 32.4 |
Current portion of operating lease liabilities |  | $ | 11.3 |  |  | $ | 10.6 |
Operating lease liabilities, net of current portion |  |  | 28.9 |  |  |  | 21.9 |
Total operating lease liabilities |  | $ | 40.2 |  |  | $ | 32.5 |
Finance leases: |  |  |  |  |  |  |  |
Property, plant and equipment at cost |  | $ | 9.0 |  |  | $ | 9.9 |
Accumulated depreciation |  |  | (8.0 | ) |  |  | (8.1 | )
Net property, plant and equipment |  | $ | 1.0 |  |  | $ | 1.8 |
Current portion of finance leases |  | $ | 0.5 |  |  | $ | 1.0 |
Finance leases, net of current portion |  |  | 0.1 |  |  |  | 0.5 |
Total finance lease liabilities |  | $ | 0.6 |  |  | $ | 1.5 |
Weighted average remaining lease term: |  |  |  |  |  |  |  |
Operating leases |  |  | 4.1 years |  |  |  | 3.3 years |
Finance leases |  |  | 1.1 years |  |  |  | 1.7 years |
Weighted average discount rate: |  |  |  |  |  |  |  |
Operating leases |  |  | 3.0 | % |  |  | 3.1 | %
Finance leases |  |  | 2.6 | % |  |  | 2.4 | %
Maturities of Lease Liabilities | Maturities of lease liabilities were as follows as at December 31, 2020:
(in millions) |  | Operating Leases |  |  | Finance Leases |
Within one year |  | $ | 11.4 |  |  | $ | 0.5 |
Year two |  |  | 9.4 |  |  |  | 0.1 |
Year three |  |  | 8.2 |  |  |  | 0.0 |
Year four |  |  | 5.5 |  |  |  | 0.0 |
Year five |  |  | 3.8 |  |  |  | 0.0 |
Thereafter |  |  | 4.6 |  |  |  | 0.0 |
Total lease payments |  |  | 42.9 |  |  |  | 0.6 |
Less imputed interest |  |  | (2.7 | ) |  |  | 0.0 |
Total |  | $ | 40.2 |  |  | $ | 0.6 |
As of December 31, 2020, additional operating and finance leases that have not yet commenced are $ 0.0 million. Future lease payment for all non-cancellable operating and finance leases as of December 31, 2019 were as follows:
(in millions) |  | Operating Leases |  |  | Finance Leases |
Within one year |  | $ | 10.8 |  |  | $ | 1.1 |
Year two |  |  | 9.1 |  |  |  | 0.4 |
Year three |  |  | 5.8 |  |  |  | 0.1 |
Year four |  |  | 4.4 |  |  |  | 0.0 |
Year five |  |  | 2.1 |  |  |  | 0.0 |
Thereafter |  |  | 2.5 |  |  |  | 0.0 |
Total lease payments |  |  | 34.7 |  |  |  | 1.6 |
Less imputed interest |  |  | (2.2 | ) |  |  | (0.1 | )
Total |  | $ | 32.5 |  |  | $ | 1.5 |

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