Conversion Ratio, Incentive Units

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- Definition

The conversion ratio of incentive units to common units of the operating partnership.

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No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award, Liquidity Measurement Period

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No definition available.

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- Definition

Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other Than Options, Percent Of Awards Earned

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No definition available.

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- Definition

Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other Than Options, Units Issued Subject To Performance Measurement

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No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Cap On Appreciation of The Market Price Over The Exercise Price, Option 1

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Cap On Appreciation of The Market Price Over The Exercise Price, Option 2

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Measurement Period

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No definition available.

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- Definition

This line item represents the vesting percentage for 2011 Z 1 Units to be convertible.

+ References

No definition available.

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- Definition

This line item represents the vesting percentage of units per year.

+ References

No definition available.

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- Definition

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

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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- Definition

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

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-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 2
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- Definition

Amount of cost not yet recognized for nonvested 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

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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-Publisher FASB
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-Paragraph 2
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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

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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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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-Publisher FASB
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-SubTopic 10
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-Paragraph 2
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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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-Publisher FASB
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- Definition

Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options.

+ References

No definition available.

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Equity Based Compensation Plans - Narrative (Details)		1 Months Ended	12 Months Ended				24 Months Ended
Equity Based Compensation Plans - Narrative (Details)	Dec. 09, 2014 shares	Dec. 31, 2013 shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2018 USD ($) $ / shares shares	Dec. 09, 2015	Dec. 31, 2011 shares	May 31, 2018 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized \| shares								2,000,000
Accelerated share-based compensation cost			$ 3,500,000	$ 3,500,000	$ 3,500,000
Intrinsic value of the options outstanding and fully vested			$ 3,400,000	$ 23,500,000
Average fair value of stock options granted (in dollars per share) \| $ / shares			$ 20.69	$ 24.02	$ 26.13
Cap on the appreciation of the market price over the exercise price, option 1			$ 100	$ 100	$ 100
Cap on the appreciation of the market price over the exercise price, option 2			125	125	125
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense			12,900,000	11,400,000	12,100,000
Stock-based compensation capitalized			1,300,000	1,600,000	2,000,000.0
Intrinsic value of options exercised			7,400,000	$ 18,700,000	$ 3,100,000
Unrecognized compensation cost			$ 4,400,000
Unrecognized compensation cost, period for recognition			2 years 2 months 12 days
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost			$ 13,800,000
Unrecognized compensation cost, period for recognition			2 years 3 months 18 days
Granted (in shares) \| shares			45,196	41,643	51,945
2015 LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares) \| shares	44,750
Units issued subject only to performance measurement \| shares	24,000
Vesting percentage of units per year	20.00%
Option grants to officers and employees vesting period	5 years
Percent of awards earned						95.75%
Conversion ratio, incentive units			1
Liquidity measurement period			10 years
Measurement period			10 years
Series Z Incentive Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares) \| shares		50,500					154,500
Option grants to officers and employees vesting period		4 years
Conversion ratio, incentive units							1
Incentive units conversion ratio							one-for-one
Series Z Incentive Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of units per year							0.00%
Option grants to officers and employees vesting period			8 years
Series Z Incentive Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of units per year							14.00%
Option grants to officers and employees vesting period			15 years
Long Term Incentive Plan 2014 Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of units per year		25.00%
Conversion ratio, incentive units			1
Liquidity measurement period			10 years
Measurement period			10 years
Vesting percentage for 2011 Z 1 Units to be convertible							100.00%
Long Term Incentive Plans - Z Units and 2014 LTIP Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense			$ 0	$ 900,000	$ 800,000
Stock-based compensation capitalized			0	$ 200,000	$ 200,000
Unrecognized compensation cost			$ 0
Granted (in shares) \| shares			0	0	0
Intrinsic value of vested and unvested LTIP units			$ 25,200,000