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Share Incentive Plans - Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Compensation information |  |  |
Compensation Expense | $ 27,810 | $ 23,174 | $ 24,449
Compensation Capitalized | 1,430 | 1,527 | 1,450
Restricted Units In-Lieu of Bonus | 1,038 | 1,743 | 3,266
Compensation Equity | 30,278 | 26,444 | 29,165
Dividends Incurred | 2,015 | 3,027 | 1,804
Restricted Shares [Member] |  |  |
Compensation information |  |  |
Compensation Expense | 7,258 | 10,053 | 11,522
Compensation Capitalized | 1,131 | 1,172 | 916
Restricted Units In-Lieu of Bonus | 0 | 0 | 0
Compensation Equity | 8,389 | 11,225 | 12,438
Dividends Incurred | 761 | 1,172 | 979
Restricted Stock Units (RSUs) [Member] |  |  |
Compensation information |  |  |
Compensation Expense | 16,689 | 10,103 | 9,905
Compensation Capitalized | 70 | 80 | 240
Restricted Units In-Lieu of Bonus | 1,038 | 1,743 | 3,265
Compensation Equity | 17,797 | 11,926 | 13,410
Dividends Incurred | 1,254 | 1,855 | 825
Options [Member] |  |  |
Compensation information |  |  |
Compensation Expense | 2,980 | 2,156 | 2,420
Compensation Capitalized | 121 | 193 | 254
Restricted Units In-Lieu of Bonus | 0 | 0 | 1
Compensation Equity | 3,101 | 2,349 | 2,675
Dividends Incurred | 0 | 0 | 0
Employee Share Purchase Plan Discount [Member] |  |  |
Compensation information |  |  |
Compensation Expense | 883 | 862 | 602
Compensation Capitalized | 108 | 82 | 40
Restricted Units In-Lieu of Bonus | 0 | 0 | 0
Compensation Equity | 991 | 944 | 642
Dividends Incurred | $ 0 | $ 0 | $ 0

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