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New Markets Tax Credit (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
Oct. 24, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Line of Credit Facility [Line Items] |  |  |  |
Proceeds from financing obligation, net of issuance costs |  | $ 0 | $ 6,614,000 | $ 0
Due to affiliates |  | 0 | 2,000 |
Debt issuance costs |  | 43,000 | $ 7,000 | $ 0
Subsidiary |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Due to affiliates | $ 22,500,000 |  |  |
Investor |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Loans and leases receivable | $ 15,900,000 |  |  |
Loans and leases receivable, term | 25 years |  |  |
Loans and leases receivable, interest rate | 1.00% |  |  |
Proceeds from financing obligation, net of issuance costs | $ 15,900,000 |  |  |
Interest | 6,300,000 |  |  |
Debt issuance costs | 300,000 |  |  |
Revolving Credit Facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Credit facility maximum borrowings | $ 23,000,000.0 | $ 30,000,000.0 |  |

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