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Leases - Narrative (Details) |  |  | 12 Months Ended
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Sep. 10, 2020 USD ($) a | Jan. 01, 2019 segment | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Leases [Abstract] |  |  |  |
Operating lease liability related to sale leaseback transactions |  |  | $ 32,900,000 |
Sale leaseback liabilities as a percentage of total operating lease liabilities |  |  | 98.00% |
Initial term of operating lease |  | 20 years |  |
Number of renewal options | segment |  | 2 |  |
Number of years in each renewal option |  | 10 years |  |
Escalator equal to the lessor |  | 125.00% |  |
Maximum rent escalator percentage |  | 2.00% |  |
Area of land | a | 12.5 |  |  |
Reduction on right-of-use asset | $ (3,200,000) |  |  |
Reduction on operating lease |  |  |  | $ (3,400,000)
Gain on lease modification | $ 200,000 |  | $ 171,000 | $ 0
Right-of-use asset obtained in exchange for operating lease liability |  |  | $ 0 |

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- Definition Sale Leaseback Transaction, Operating Lease, Liability + References No definition available. + Details
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