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Number of Joint Ventures in which Units are Issued, Noncontrolling Interest

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Redeemable Noncontrolling Interest, Equity, Carrying Amount [Roll Forward]

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Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest.

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Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.

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Amount of Net Income (Loss) attributable to noncontrolling interest.

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As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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Amount of noncontrolling interests which are redeemable by the parent entity, classified as other equity.

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As of the reporting date, the carrying amount of noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. The noncontrolling interest holder's ownership (or holders' ownership) may be in the form of preferred shares (regardless of class), preferred partnership units (regardless of class), preferential membership interests, or any other form of preferred equity regardless of investee entity legal form.

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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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Basis of Presentation, Consolidation, Investments in Joint Ventures, and Noncontrolling Interests - Redeemable Noncontrolling Interests (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) joint_venture	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Redeemable Noncontrolling Interest, Equity, Carrying Amount [Roll Forward]
Net income allocable to redeemable noncontrolling interests	$ (17)	$ 99	$ 188	$ 372
Redeemable Noncontrolling Interests
Redeemable Noncontrolling Interest, Equity, Carrying Amount [Roll Forward]
Beginning Balance			52,574	45,743
Net income allocable to redeemable noncontrolling interests			188	372
Distributions declared to redeemable noncontrolling interests			(974)	(1,586)
Other, net including adjustments to redemption value			(7,159)	777
Ending Balance	44,629	45,306	44,629	45,306
Total limited partners' interests in Operating Partnership and other redeemable noncontrolling interests balance at June 30	44,629	$ 45,306	44,629	$ 45,306	$ 44,629	$ 52,574
Redeemable Noncontrolling Interests \| Partnership Interest
Redeemable Noncontrolling Interest, Equity, Carrying Amount [Roll Forward]
Beginning Balance			63,306
Ending Balance	44,629		44,629
Limited partners' interests in Operating Partnership					34,559	53,236
Other redeemable noncontrolling interests in certain subsidiaries					10,070	10,070
Total limited partners' interests in Operating Partnership and other redeemable noncontrolling interests balance at June 30	$ 44,629		$ 63,306		$ 44,629	$ 63,306
Capital Unit, Class B
Redeemable Noncontrolling Interest [Line Items]
Number of joint ventures \| joint_venture			3
Number of joint ventures accounted for as noncontrolling interest \| joint_venture			1