Percentage Of Restricted Share Units Issued To Trustees

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- Definition

The 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).

+ References

No definition available.

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- Definition

Represents number of dividend equivalent included in equity instruments other than options.

+ References

No definition available.

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- Definition

Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
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- Definition

Amount of noncash expense for share-based payment arrangement.

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-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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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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-Paragraph 2
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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).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 2
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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.

+ References

No definition available.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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- Definition

Value, before forfeiture, of shares granted under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

+ References

No definition available.

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Stock-based Compensation - (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended				12 Months Ended
	Mar. 31, 2021	Jan. 31, 2021	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Apr. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-cash share compensation					$ 15,032	$ 12,486	$ 10,115
2013 Plan \| Restricted common shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)								7,000,000
Granted (in shares)					224,163	190,418	194,413
Non-cash share compensation					$ 3,700	$ 3,500	$ 3,300
Unrecognized compensation expense					$ 1,400	$ 1,300	$ 1,100
Grant date value (in dollars per share)					$ 17.42	$ 19.00	$ 17.80
2013 Plan \| Restricted Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	265,275		223,579	229,884
Non-cash share compensation					$ 11,200	$ 8,900	$ 6,700
Unrecognized compensation expense					$ 12,000	$ 11,500	$ 5,800
Number of dividend equivalent included in award (in shares)					1
2013 Plan \| Market Based RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date value (in dollars per share)					$ 29.18	$ 31.95	$ 32.65
2013 Plan \| Performance based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date value (in dollars per share)					22.00		25.27
Grant date fair value (in dollars per share)					$ 17.21		$ 17.89
Officers and Certain Employees \| 2013 Plan \| Restricted common shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)					224,163	190,418	194,413
Share-based compensation, gross					$ 3,900	$ 3,600	$ 3,500
Officers and Certain Employees \| 2013 Plan \| Restricted Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		1 year
Officers and Certain Employees \| 2013 Plan \| Market Based RSU
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares awarded					40.00%	40.00%	50.00%
Officers and Certain Employees \| 2013 Plan \| Performance based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of shares awarded					60.00%	60.00%	50.00%
Percentage of restricted share units issued to trustees						100.00%
Senior Management \| 2013 Plan \| Restricted common shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					1 year	1 year	1 year
Senior Management \| 2013 Plan \| Restricted Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Senior Management \| 2013 Plan \| Performance based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value (in dollars per share)						$ 19.30
Employee \| 2013 Plan \| Restricted common shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					3 years	3 years	3 years
Officer \| 2013 Plan \| Restricted Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			259,067
Vesting period			5 years
Officer \| 2013 Plan \| Performance based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value (in dollars per share)						$ 24.36
Trustees \| 2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		13,343
Trustees \| 2013 Plan \| Restricted Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	43,582		38,858	41,925
Vesting period	2 years
Number of dividend equivalent included in award (in shares)		1
Trustees \| 2013 Plan \| Performance based restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value (in dollars per share)		$ 17.80