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Leases (Tables) | 12 Months Ended
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Dec. 31, 2021
Leases [Abstract] |
Schedule of assets and liabilities, lessee | Our ROUA and ROUL balances for the years ended December 31, 2021 and December 31, 2020 were as follows (in millions):
| December 31, 2021 |  | December 31, 2020
ROUA(1) | $ | 22.9 |  |  | $ | 24.9 |
ROUL - current(2) | $ | 1.6 |  |  | $ | 1.6 |
ROUL - non-current(3) | 22.9 |  |  | 24.3 |
Total ROUL | $ | 24.5 |  |  | $ | 25.9 |
(1) ROUA was recorded as part of Other Assets within Non-current assets at December 31, 2021 and 2020. (2) ROUL - current was recorded as part of Accrued and other current liabilities within Current liabilities at December 31, 2021 and 2020. (3) ROUL - non-current was recorded as part of Leases - Right of use liabilities within Non-current liabilities at December 31, 2021 and 2020.
Schedule of maturities of operating lease liability balances | The undiscounted maturities of our operating lease liability balances are as follows (in millions):
Year | December 31, 2021
2022 | $ | 3.3 |
2023 | 3.0 |
2024 | 2.8 |
2025 | 2.7 |
2026 | 2.7 |
Thereafter | 25.1 |
Total | 39.6 |
Less: Interest | (15.1) |
ROUL | $ | 24.5 |
Schedule of lease, expense | Total operating expense includes the following (in millions):
| December 31, 2021 |  | December 31, 2020
Operating leases expense | $ | 4.7 |  |  | $ | 4.7 |
Short term lease expense | 0.6 |  |  | 0.5
Total(1) | $ | 5.3 |  |  | $ | 5.2 |
(1) Total lease expense is included in cost of goods sold and selling, general, and administrative expenses on the Consolidated Statements of Operations.

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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 http://asc.fasb.org/extlink&oid=123408670&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 http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
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