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Equity Compensation and Other Benefit Plans - Deferred Compensation Plans (Details) - Deferred Compensation Plans - USD ($) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |
Deferrable compensation by the employee, maximum | 100.00% |  |
Expenses related to Deferred Plans | $ 537,000 | $ (911,000) | $ 663,000
Cash distributed to the participants | 0 | 769,400 | 568,900
Undistributed Income Deferred | 2,687,000 | 2,197,000 |
Liability Under Deferred Plans | 2,836,000 | 1,809,000 |
Non-employee directors |  |  |
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] |  |  |
Expenses related to Deferred Plans | 537,000 | (911,000) | $ 663,000
Undistributed Income Deferred | 2,687,000 | 2,197,000 |
Liability Under Deferred Plans | $ 2,836,000 | $ 1,809,000 |

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