Benefit Plans - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amortization related to restricted stock/Unit awards and LTIP Unit Awards	$ 3,101	$ 2,963
Unrecognized compensation related to unvested restricted stock/Unit awards and LTIP Unit Awards	$ 12,705
Weighted average period of unrecognized compensation expected to be recognized	1 year 1 month 21 days
LTIP Unit Awards \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of LTIP Unit Awards	0.00%
LTIP Unit Awards \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage of LTIP Unit Awards	100.00%
Management \| Restricted Stock/Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock/Unit awards and LTIP Unit Awards issued	252,213
Fair value of restricted stock/Unit awards and LTIP Unit Awards issued	$ 6,631
Vesting period of restricted stock/Unit awards issued	3 years
Compensation expense recognized at date of grant	$ 1,590	$ 1,590
Management \| LTIP Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock/Unit awards and LTIP Unit Awards issued	195,951
Fair value of restricted stock/Unit awards and LTIP Unit Awards issued	$ 2,473
Vesting period of restricted stock/Unit awards issued	3 years

The fair value at approval date of non-option equity instruments granted during the period.

No definition available.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

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-Publisher FASB
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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Additional share-based compensation cost recognized as a result of an occurrence of an event that accelerates its recognition.

+ References

No definition available.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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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

Net number of non-option equity instruments granted to participants.

+ References

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- Definition

Percentage of vesting of share-based compensation awards.

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