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Right of Use Assets and Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2022
Leases [Abstract] |
Components of lease expense | The components of lease expense were as follows:
| Year Ended December 31,
(dollars in millions) | 2022 |  | 2021 |  | 2020
Operating lease cost | $ | 2.1 |  |  | $ | 1.4 |  |  | $ | 1.0 |
Schedule of supplemental cash flow information related to leases | Supplemental cash flow information related to leases was as follows:
| December 31,
(dollars in millions) | 2022 |  | 2021 |  | 2020
Cash paid for amounts included in the measurement of lease liabilities: |  |  |  |  |
Operating cash flows from operating leases | $ | 1.9 |  |  | $ | 1.2 |  |  | $ | 0.9 |
Supplemental non-cash information: |  |  |  |  |
Right-of-use assets obtained in exchange for new lease obligations | $ | 2.4 |  |  | $ | 3.2 |  |  | $ | 0.6 |
Schedule of maturities of operating lease liabilities | Maturities of operating lease liabilities as of December 31, 2022 were as follows:
(dollars in millions) |
2023 | $ | 2.0 |
2024 | 2.2 |
2025 | 0.5 |
2026 | — |
Total lease payments | 4.7 |
Less: imputed interest | (0.2) |
Total | $ | 4.5 |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918701-209980 + Details
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