Equity Award, Conversion Basis

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- Definition

Number of Tranches

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No definition available.

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- Definition

Number of Trustees in Board of Trustees

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- Definition

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

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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

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

+ References

No definition available.

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- Definition

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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- Definition

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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- Definition

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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- Definition

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

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

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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- Definition

Percentage of vesting of award under share-based payment arrangement.

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- Definition

Aggregate value of stock related to Restricted Stock Awards issued during the period.

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Share-Based Compensation - Narrative (Details) $ / shares in Units, $ in Thousands						3 Months Ended		9 Months Ended
	Sep. 16, 2020 USD ($) $ / shares shares	Jun. 23, 2020 USD ($) trustee $ / shares shares	Jan. 27, 2020 $ / shares shares	Jun. 20, 2019 USD ($) trustee $ / shares shares	Jan. 29, 2019 $ / shares shares	Sep. 30, 2020 USD ($) shares	Sep. 30, 2019 USD ($) shares	Sep. 30, 2020 USD ($) tranche $ / shares shares	Sep. 30, 2019 USD ($) shares	Dec. 31, 2019 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued (in shares)						121,524,510		121,524,510		121,924,199
Compensation expense, accelerated vesting due to a staffing reduction \| $								$ 17	$ 800
Common shares available for issuance (in shares)						2,289,273		2,289,273
General and Administrative Expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense \| $						$ 3,300	$ 3,400	$ 9,900	$ 11,100
Restricted shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period								4 years
Stock issued during period, value \| $	$ 100
Number of equity awards granted (in shares)	2,526	19,104	85,058	23,520	112,359
Granted shares value (in dollars per share) \| $ / shares	$ 30.39				$ 31.77
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period								3 years
Number of tranches \| tranche								2
Share-based compensation arrangement (in shares)								388,615	384,811
Common stock issued (in shares)						388,615	384,811	388,615	384,811
Granted shares value (in dollars per share) \| $ / shares					$ 39.65
RSUs \| Vesting in three years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percent								50.00%
RSUs \| Vesting in four years
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period								1 year
Vesting percent								50.00%
RSUs at target
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity awards granted (in shares)			172,697		228,128
RSUs at maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity awards granted (in shares)			430,447		568,609
LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion basis						1		1
Time-based LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity awards granted (in shares)		9,552	20,116	2,940
Market-based LTIP Units, at target
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity awards granted (in shares)			40,841
Market-based LTIP Units, at maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity awards granted (in shares)			101,796
Restricted shares and time-based LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		1 year		1 year
Stock issued during period, value \| $		$ 100		$ 100
Number of equity awards granted (in shares)		3,184		2,940
Granted shares value (in dollars per share) \| $ / shares		$ 31.41	$ 32.81	$ 34.01
Number of trustees in board of trustees \| trustee		9		9
Estimated future compensation expense for unvested shares \| $						$ 7,100		$ 7,100
Weighted average period over which compensation expense will be recorded								2 years 3 months 18 days
RSUs and market-based LTIP units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted shares value (in dollars per share) \| $ / shares								$ 40.17
Estimated future compensation expense for unvested shares \| $						$ 13,700		$ 13,700
Weighted average period over which compensation expense will be recorded								2 years 2 months 12 days