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Share-Based Compensation (Schedule of Share-Based Compensation Information) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share Based Compensation [Abstract]
Expense relating to share/unit grants	$ 785,000	$ 629,000	$ 1,662,000	$ 2,650,000
Amounts capitalized		(46,000)	(54,000)	(141,000)
Total charged to operations	$ 785,000	$ 583,000	$ 1,608,000	$ 2,509,000
Unvested shares/units, December 31, 2021			492,000
Restricted share grants			7,000
Vested during period			(417,000)
Forfeitures/cancellations/retirements			(82,000)
Unvested shares/unit, December 31, 2021, weighted average grant date fair value			$ 23.47
Restricted share grants, weighted average grant date fair value			26.31
Vested during period, weighted average grant date fair value			28.63
Forfeitures/cancellations/retirements, weighted average grant date fair value			$ 28.29

X

- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
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Amount of cost capitalized for award under share-based payment arrangement.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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

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