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Borrowings - MetLife Facility (Narrative) (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
Feb. 03, 2022 | Dec. 31, 2022
2020 MetLife Term Note | Notes payable to bank |  |
Debt Instrument [Line Items] |  |
Amount | $ 75,000,000 |
Undrawn commitment |  | $ 38,100,000
2020 MetLife Term Note | Line of credit |  |
Debt Instrument [Line Items] |  |
Amount |  | $ 75,000,000
MetLife Credit Facility | Notes payable to bank |  |
Debt Instrument [Line Items] |  |
Amount | $ 100,000,000 |
MetLife Credit Facility | Notes payable to bank | Minimum |  |
Debt Instrument [Line Items] |  |
Unused fee | 0.10% | 0.10%
MetLife Credit Facility | Notes payable to bank | Maximum |  |
Debt Instrument [Line Items] |  |
Unused fee | 0.20% | 0.20%
MetLife Credit Facility | Line of credit |  |
Debt Instrument [Line Items] |  |
Amount | $ 75,000,000 |
Undrawn commitment |  | $ 74,900,000
MetLife Credit Facility | Line of credit | Minimum |  |
Debt Instrument [Line Items] |  |
Unused fee |  | 0.10%
MetLife Credit Facility | Line of credit | Maximum |  |
Debt Instrument [Line Items] |  |
Unused fee |  | 0.20%

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- Definition Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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