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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Represents dividends paid during the period for each type of long term compensation outstanding.

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Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost capitalized for award under share-based payment arrangement.

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Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders.

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