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Debt Prepayment Penalty Expense, Attributable to Noncontrolling Interest

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

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Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Amount after tax of income (loss) from a discontinued operation attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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The number of units in a real estate property owned as of the balance sheet date.

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Acquisitions and Dispositions - Property Dispositions (Details) $ in Thousands								3 Months Ended
	Feb. 05, 2018 USD ($)	Oct. 25, 2017 USD ($) property_unit	Dec. 21, 2016 USD ($) property_unit	Nov. 30, 2016 USD ($) property_unit	Nov. 21, 2016 USD ($) property_unit	Oct. 26, 2016 USD ($) property_unit	Oct. 19, 2016 USD ($) property_unit	Mar. 31, 2018 USD ($)	Dec. 31, 2016 USD ($) property_unit	Dec. 31, 2017 property_unit
Business Acquisition [Line Items]
No. of Units \| property_unit										9,684
Property dispositions
Business Acquisition [Line Items]
No. of Units \| property_unit									1,017
Sales Price									$ 130,710
Gain on Sale									35,838
Non-controlling partner portion of gain									$ 17,125
Property dispositions \| Melbourne, FL
Business Acquisition [Line Items]
No. of Units \| property_unit		208
Sales Price		$ 22,250
Gain on Sale		12,519
Non-controlling partner portion of gain		$ 2,504
Property dispositions \| Greenville, SC
Business Acquisition [Line Items]
No. of Units \| property_unit							350
Sales Price							$ 68,000
Gain on Sale							18,483
Non-controlling partner portion of gain							$ 9,329
Property dispositions \| Panama City, FL
Business Acquisition [Line Items]
No. of Units \| property_unit						160
Sales Price						$ 14,720
Gain on Sale						7,393
Non-controlling partner portion of gain						$ 3,478
Property dispositions \| Atlanta, GA
Business Acquisition [Line Items]
No. of Units \| property_unit					350
Sales Price					$ 36,750
Gain on Sale					8,905
Non-controlling partner portion of gain					$ 4,166
Property dispositions \| Hixson, TN
Business Acquisition [Line Items]
No. of Units \| property_unit				156
Sales Price				$ 10,775
Gain on Sale				608
Non-controlling partner portion of gain				$ 152
Property dispositions \| New York, NY
Business Acquisition [Line Items]
No. of Units \| property_unit			1
Sales Price			$ 465
Gain on Sale			449
Non-controlling partner portion of gain			$ 0
Subsequent event \| Property dispositions \| West Palm Beach, FL [Member]
Business Acquisition [Line Items]
Sales Price	$ 97,200
Mortgage prepayment penalties incurred	594
Mortgage prepayment penalties incurred, attributable to noncontrolling interest	$ 290
Forecast \| Subsequent event \| Property dispositions \| West Palm Beach, FL [Member]
Business Acquisition [Line Items]
Gain on Sale								$ 41,800
Non-controlling partner portion of gain								$ 20,500