Long-Term Compensation - Summary of Restricted Stock/Unit Award and LTIP Unit Award Transactions (Details)	12 Months Ended
Dec. 31, 2019 $ / shares shares
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding, Beginning Balance, Awards \| shares	595,383
Issued, Awards \| shares	36,064
Forfeited, Awards \| shares	(13,455)
Vested, Awards \| shares	(237,270)
Outstanding, Ending Balance, Awards \| shares	380,722
Outstanding, Weighted Average Grant Date Fair Value, Beginning of Period \| $ / shares	$ 11.79
Issued, Weighted Average Grant Date Fair Value \| $ / shares	12.45
Forfeited, Weighted Average Grant Date Fair Value \| $ / shares	12.97
Vested, Weighted Average Grant Date Fair Value \| $ / shares	10.06
Outstanding, Weighted Average Grant Date Fair Value, End of Period \| $ / shares	$ 12.89
LTIP Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding, Beginning Balance, Awards \| shares	0
Issued, Awards \| shares	166,942
Forfeited, Awards \| shares	(10,240)
Vested, Awards \| shares	0
Outstanding, Ending Balance, Awards \| shares	156,702
Outstanding, Weighted Average Grant Date Fair Value, Beginning of Period \| $ / shares	$ 0
Issued, Weighted Average Grant Date Fair Value \| $ / shares	12.45
Forfeited, Weighted Average Grant Date Fair Value \| $ / shares	12.45
Vested, Weighted Average Grant Date Fair Value \| $ / shares	0
Outstanding, Weighted Average Grant Date Fair Value, End of Period \| $ / shares	$ 12.45
Restricted Stock/Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding, Beginning Balance, Awards \| shares	405,436
Issued, Awards \| shares	109,353
Forfeited, Awards \| shares	(9,851)
Vested, Awards \| shares	(208,567)
Outstanding, Ending Balance, Awards \| shares	296,371
Outstanding, Weighted Average Grant Date Fair Value, Beginning of Period \| $ / shares	$ 26.64
Issued, Weighted Average Grant Date Fair Value \| $ / shares	35.17
Forfeited, Weighted Average Grant Date Fair Value \| $ / shares	29.48
Vested, Weighted Average Grant Date Fair Value \| $ / shares	25.40
Outstanding, Weighted Average Grant Date Fair Value, End of Period \| $ / shares	$ 30.56
Service LTIP Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding, Beginning Balance, Awards \| shares	0
Issued, Awards \| shares	112,428
Forfeited, Awards \| shares	(1,788)
Vested, Awards \| shares	0
Outstanding, Ending Balance, Awards \| shares	110,640
Outstanding, Weighted Average Grant Date Fair Value, Beginning of Period \| $ / shares	$ 0
Issued, Weighted Average Grant Date Fair Value \| $ / shares	33.64
Forfeited, Weighted Average Grant Date Fair Value \| $ / shares	33.58
Vested, Weighted Average Grant Date Fair Value \| $ / shares	0
Outstanding, Weighted Average Grant Date Fair Value, End of Period \| $ / shares	$ 33.64

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

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 (c)(1)(iv)(3)
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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

+ References

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-Topic 718
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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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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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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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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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-Publisher FASB
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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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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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