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Leases (Tables) | 12 Months Ended
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Dec. 31, 2020
Leases [Abstract] |
Schedule of assets and liabilities, lessee | Our ROUA and ROUL balances for the years ended December 31, 2020 and December 31, 2019 were as follows (in millions):
| December 31, 2020 |  | December 31, 2019
ROUA(1) | $ | 24.9 |  |  | $ | 25.2 |
ROUL - current(2) | $ | 1.6 |  |  | $ | 2.8 |
ROUL - non-current(3) | $ | 24.3 |  |  | $ | 22.8 |
Total ROUL | $ | 25.9 |  |  | $ | 25.6 |
(1) ROUA was recorded as part of Other Assets within Non-current assets at December 31, 2020 and 2019. (2) ROUL - current was recorded as part of Accrued and other current liabilities within Current liabilities at December 31, 2020 and 2019. (3) ROUL - non-current was recorded as Leases - Right of use liabilities as part of Non-current liabilities at December 31, 2020 and 2019
Schedule of maturities of operating lease liability balances | The undiscounted maturities of our operating lease liability balances are as follows (in millions):
Year | As of December 31, 2020
2021 | $ | 3.4 |
2022 | 3.0 |
2023 | 2.7 |
2024 | 2.7 |
2025 | 2.7 |
Thereafter | 29.1 |
Total | 43.6 |
Less: Interest | (17.7) |
ROUL | $ | 25.9 |
Schedule of lease, expense | Total operating expense includes the following (in millions):
| December 31, 2020 |  | December 31, 2019
Operating leases expense | 4.7 |  |  | 4.9
Short term lease expense | 0.5 |  |  | 3.2
Total(1) | 5.2 |  |  | 8.1
(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=121609121&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=121609121&loc=SL77918701-209980 + Details
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