New Accounting Pronouncement Or Change In Accounting Principle, Recognized Gains As A Percent Of Revenue

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New Accounting Pronouncement or Change in Accounting Principle, Change in Revenue, Percent

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Number of Joint Ventures in which Units are Issued

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

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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Fair value portion of investments accounted under the equity method.

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The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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- Definition

The number of limited partner units outstanding.

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Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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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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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The number of real estate properties owned as of the balance sheet date.

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Amount of lessee's right to use underlying asset under operating lease.

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Cash received for the sale of real estate that is not part of an investing activity during the current period.

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The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.

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The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position.

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Basis of Presentation, Consolidation, Investments in Joint Ventures, and Noncontrolling Interests - Additional Information (Details) $ in Thousands			1 Months Ended	3 Months Ended			6 Months Ended	9 Months Ended
	Nov. 08, 2018 USD ($)	Aug. 07, 2018 USD ($)	Feb. 28, 2018 USD ($)	Mar. 31, 2019 USD ($)	Sep. 30, 2018 USD ($) joint_venture property shares	Sep. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)	Sep. 30, 2018 USD ($) joint_venture property shares	Sep. 30, 2017 USD ($)	Jun. 29, 2018 USD ($) property	Dec. 31, 2017 shares
Noncontrolling Interest [Line Items]
Variable interest entity, number of entities \| joint_venture					3			3
Variable interest entity, consolidated, carrying amount, liabilities					$ 205,700			$ 205,700
Variable interest entity, consolidated, carrying amount, assets					$ 444,200			$ 444,200
Number of real estate properties \| property					2			2
Limited partners' capital account, units outstanding (in shares) \| shares					2,048,849			2,048,849			1,974,830
Net proceeds from sales of operating properties								$ 161,499	$ 76,076
Net cash provided by operating activities								119,033	123,845
Net cash provided by investing activities								103,595	21,142
General, administrative, and other					$ 4,865	$ 5,431		16,364	16,389
Depreciation and amortization					$ (36,858)	$ (42,793)		$ (115,864)	(131,333)
Accounting Standards Update 2014-09
Noncontrolling Interest [Line Items]
New accounting pronouncement or change in accounting principle, change in revenue (as percent)								1.00%
New accounting pronouncement or change in accounting principle, recognized gains as a percent of revenue (as percent)								1.00%
Accounting Standards Update 2016-18
Noncontrolling Interest [Line Items]
Net cash provided by operating activities									1,700
Net cash provided by investing activities									1,900
Accounting Standards Update 2016-02 \| Minimum \| Forecast
Noncontrolling Interest [Line Items]
Right of use asset				$ 30,000
General, administrative, and other				3,000
Depreciation and amortization				3,000
Accounting Standards Update 2016-02 \| Maximum \| Forecast
Noncontrolling Interest [Line Items]
Right of use asset				34,000
General, administrative, and other				5,000
Depreciation and amortization				$ 5,000
Redeemable Noncontrolling Interests
Noncontrolling Interest [Line Items]
Noncontrolling interest, decrease from redemptions or purchase of interests		$ 10,000	$ 22,000					$ 22,461	$ 8,261
Redeemable Noncontrolling Interests \| Subsequent event \| Plan
Noncontrolling Interest [Line Items]
Noncontrolling interest, decrease from redemptions or purchase of interests	$ 12,000
Capital Unit, Class B
Noncontrolling Interest [Line Items]
Number of joint ventures \| joint_venture								3
Number of joint ventures accounted for as noncontrolling interest \| joint_venture								2
Operating Partnership
Noncontrolling Interest [Line Items]
Noncontrolling interest, ownership percentage by parent (as percent)					97.60%			97.60%			97.70%
Noncontrolling interest, ownership percentage by noncontrolling ownership interests (as percent)					2.40%			2.40%			2.30%
TH Joint Venture
Noncontrolling Interest [Line Items]
Equity method investment, ownership percentage (as percent)										20.00%
Livingston Shopping Center, Plaza Volente, and Tamiami Crossing
Noncontrolling Interest [Line Items]
Net proceeds from sales of operating properties							$ 89,000
Disposal group, not discontinued operation, gain (loss) on disposal							$ 7,800
Livingston Shopping Center, Plaza Volente, and Tamiami Crossing \| TH Joint Venture
Noncontrolling Interest [Line Items]
Number of real estate properties \| property					3			3		3
Consideration for property contributed										$ 99,800
Equity method investment										$ 10,000
Equity method investment, ownership percentage (as percent)										20.00%