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Amount of additional cost recognized for award under share-based payment arrangement from occurrence of event accelerating recognition of cost.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Equity-Based Compensation Plans (Narrative) (Details) - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested deferred shares reserved for future issuance	205,378
Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested deferred shares reserved for future issuance	5,484
Performance stock awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share award granted under stock incentive plan, performance period	3 years
TSR of performance peer group weighted percentage	50.00%
TSR within NAREIT All Equity REIT weighted percentage	50.00%
Unrecognized compensation cost	$ 6.2
Weighted average period (in years)	1 year 6 months
Restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 6.7
Weighted average period (in years)	1 year 8 months 12 days
Minimum [Member] \| Performance stock awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Actually Issued, as a Percent of the Amount Subject to the Performance Share Award	0.00%
Minimum [Member] \| Restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
Maximum [Member] \| Performance stock awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Actually Issued, as a Percent of the Amount Subject to the Performance Share Award	200.00%
Maximum [Member] \| Restricted stock units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
CatchMark Merger [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense for accelerated vesting cost		$ 9.3
Long-Term Incentive Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future use	1,800