Classes Of LTIP Units

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grant Date Fair Value

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award, Percent of Shares Able To Be Vested

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- Definition

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

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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.

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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

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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- 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

Number of non-option equity instruments exercised by participants.

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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

Number of shares issued under share-based payment arrangement.

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Share-Based Compensation Plan - Narrative (Details) $ / shares in Units, $ in Millions									1 Months Ended								12 Months Ended
	Feb. 18, 2021 USD ($) $ / shares shares	Jul. 24, 2020 shares	Feb. 12, 2020 shares	Feb. 13, 2019 shares	Feb. 14, 2018 shares	Feb. 15, 2017 shares	Feb. 10, 2016 shares	Dec. 13, 2013 USD ($) $ / shares shares	Jan. 31, 2021 shares	Mar. 31, 2020 USD ($)	Feb. 29, 2020 shares	Jan. 31, 2020 shares	Jan. 31, 2019 shares	Jan. 31, 2018 shares	Jan. 31, 2017 shares	Jan. 31, 2016 shares	Dec. 31, 2021 USD ($) class $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2018 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares available for issuance under the Plan (in shares)																	1,809,516
Service Condition Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accelerated share-based compensation \| $										$ 5.5
Compensation expense \| $																	$ 4.1	$ 8.1	$ 2.4
Total unrecognized compensation expense \| $																	$ 8.8
Period over which compensation expense is expected to be recognized																	3 years 2 months 12 days
Awards granted (in shares)																	415,531	390,242	88,430
Awards vested (in shares)																	81,591	72,824	66,276
Fair value of award on grant date (in usd per share) \| $ / shares																	$ 22.53	$ 24.94	$ 33.37	$ 32.22
Performance-Based Equity Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense \| $																	$ 4.9	$ 4.1	$ 4.8
Total unrecognized compensation expense \| $																	$ 5.8
Period over which compensation expense is expected to be recognized																	1 year 8 months 12 days
Awards granted (in shares)	189,348		161,777	126,891	78,918	81,939	100,919	252,088
Awards issued (in shares)											27,881		35,471	72,236	12,285	25,134
Performance-Based Equity Awards \| Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards issued (in shares)									0			1,972	142,173
Performance-Based Equity Awards \| Employee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards issued (in shares)									0			405	31,146
Long-Term Incentive Partnership ("LTIP") Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense \| $																	$ 2.4	$ 10.6	$ 1.1
Total unrecognized compensation expense \| $																	$ 11.2
Awards vested (in shares)																	127,111
Classes of LTIP Units \| class																	2
Long-Term Incentive Partnership ("LTIP") Class B Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period								5 years
Accelerated share-based compensation \| $										$ 10.5
Awards granted (in shares)	600,097		415,818					226,882
Fair value of award on grant date (in usd per share) \| $ / shares	$ 22.69							$ 29.19
Aggregate grant date fair value \| $	$ 13.6							$ 6.6
Units redeemed (in shares)		109,240
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period																	3 years
Minimum \| Service Condition Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period																	3 years
Minimum \| Performance-Based Equity Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares able to be vested, percent	0.00%		0.00%	0.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period																	5 years
Maximum \| Service Condition Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period																	5 years
Maximum \| Performance-Based Equity Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares able to be vested, percent	200.00%		200.00%	200.00%