The annual reduction amount to the Guarantor's Obligations.

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Debt Instrument, Period Of Extension Option

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Annual coverage limit provided by the insurance arrangement for environmental liability claims.

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Environmental Liability Insurance, Maximum Coverage Per Incident

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Portion of the loan amount guaranteed by the company based on the guaranty percentage.

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No definition available.

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Minimum potential amount of future payments (undiscounted) the company could be required to make under the guarantee or each group of similar guarantees after reductions.

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No definition available.

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Guarantor Obligations, Guaranty Fee, Percentage

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No definition available.

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Guarantor Obligations, Guaranty Reduction Percentage, Once Certain Debt and Operational Metrics Are Met

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No definition available.

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Guarantor Obligations, Guaranty Reduction, Percentage, Once Construction Is Complete

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Percentage of third party construction loan guaranteed by the company.

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Company's maximum guaranteed amount after loans were partially paid down.

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Number of extension options available.

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-- None. No documentation exists for this element. --

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Joint venture agreed to reimburse a percentage amount to the Guarantor for Fund Obligations.

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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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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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No definition available.

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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

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No definition available.

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Fair value portion of guarantee, including, but not limited to, financial standby letter of credit, fair value guarantee, guarantee of collection of scheduled contractual cash flows from financial assets, and contracts that contingently require the guarantor to make payments or perform services.

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Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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This element represents the current and noncurrent portions of a long-term real estate loan with an initial maturity beyond one year or beyond the normal operating cycle, if longer, to finance building costs. The funds are disbursed as needed or in accordance with a prearranged plan; generally, a portion of the funds is disbursed at inception and the remainder as construction progresses. The money is repaid on completion of the project (generally one to seven years), usually from the proceeds of a mortgage loan. The rate is normally higher than the prime rate, and there is usually an origination fee. The effective yield on these loans tends to be high, and the lender has a security interest in the real property.

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Amount of letters of credit and other surety bonds that are available for the future payment of malpractice claims.

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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 required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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CONTINGENCIES - Summary (Details)	1 Months Ended	12 Months Ended
CONTINGENCIES - Summary (Details)	Aug. 31, 2017	Dec. 31, 2018 USD ($) extension_option	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Guarantor Obligations [Line Items]
Environmental liability insurance, maximum coverage per incident (up to $50,000)		$ 10,000,000
Environmental liability insurance, aggregate coverage limit (up to)		50,000,000
Guarantees [Abstract]
Obligation recorded to reflect guaranty		$ 1,158,000	$ 841,000
Guaranty reduction percentage, once construction is complete (as a percent)		50.00%
Guaranty reduction percentage, once certain debt and operational metrics are met (as a percent)		25.00%
Guaranty fee (as a percent)		1.00%
Performance Bonds [Abstract]
Bonds outstanding		$ 16,003,000	16,998,000
Initial term of lease		20 years
Lease expense		$ 882,000	980,000	$ 1,301,000
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2019		504,000
2020		610,000
2021		517,000
2022		321,000
2023		281,000
Thereafter		12,297,000
Total lease payments due		$ 14,530,000
Minimum
Guarantees [Abstract]
Company's Ownership Interest		10.00%
Number of extension options available \| extension_option		1
Performance Bonds [Abstract]
Term of renewal option		5 years
Maximum
Guarantees [Abstract]
Company's Ownership Interest		65.00%
Performance Bonds [Abstract]
Term of renewal option		10 years
West Melbourne I, LLC - Phase I & II and Port Orange I, LLC [Member]
Guarantees [Abstract]
Guaranty reduction percentage, once construction is complete (as a percent)		20.00%
West Melbourne I, LLC - Phase I
Guarantees [Abstract]
Company's Ownership Interest		50.00%
Outstanding Balance		$ 40,587,000
Percentage Guaranteed by the Operating Partnership		50.00%
Maximum Guaranteed Amount		$ 20,293,500.0
Obligation recorded to reflect guaranty		$ 203,000	86,000
West Melbourne I, LLC - Phase II
Guarantees [Abstract]
Company's Ownership Interest		50.00%
Outstanding Balance		$ 16,007,000
Percentage Guaranteed by the Operating Partnership		50.00%
Maximum Guaranteed Amount		$ 8,003,500.0
Obligation recorded to reflect guaranty		$ 80,000	33,000
Port Orange I, LLC
Guarantees [Abstract]
Company's Ownership Interest		50.00%
Outstanding Balance		$ 56,087,000
Percentage Guaranteed by the Operating Partnership		50.00%
Maximum Guaranteed Amount		$ 28,043,500.0
Obligation recorded to reflect guaranty		$ 280,000	116,000
Number of extension options available \| extension_option		2
Term of extension option		1 year
Ambassador Infrastructure, LLC
Guarantees [Abstract]
Company's Ownership Interest		65.00%
Outstanding Balance		$ 10,605,000
Percentage Guaranteed by the Operating Partnership	100.00%	100.00%
Maximum Guaranteed Amount		$ 10,605,000
Obligation recorded to reflect guaranty		$ 106,000	177,000
Shoppes at Eagle Point, LLC
Guarantees [Abstract]
Company's Ownership Interest		50.00%
Outstanding Balance		$ 33,826,000
Percentage Guaranteed by the Operating Partnership		100.00%
Maximum Guaranteed Amount		$ 36,400,000
Obligation recorded to reflect guaranty		$ 364,000	364,000
Number of extension options available \| extension_option		1
Term of extension option		2 years
Guaranty reduction percentage, once construction is complete (as a percent)		35.00%
EastGate Storage, LLC
Guarantees [Abstract]
Company's Ownership Interest		50.00%
Outstanding Balance		$ 5,222,000
Percentage Guaranteed by the Operating Partnership		100.00%
Maximum Guaranteed Amount		$ 6,500,000
Obligation recorded to reflect guaranty		$ 65,000	65,000
Guaranty reduction percentage, once construction is complete (as a percent)		50.00%
Guaranty reduction percentage, once certain debt and operational metrics are met (as a percent)		25.00%
York Town Center, LP
Guarantees [Abstract]
Initial maximum guaranteed amount of third party's construction loan		$ 22,000,000
Annual reductions to the guarantor's obligations		800,000
Guaranteed minimum exposure amount		10,000,000
Guaranteed amount of the outstanding loan		$ 12,400,000
Guaranty obligation agreed to be reimbursed by joint venture partner (as a percent)		50.00%
Self Storage at Mid Rivers, LLC
Guarantees [Abstract]
Company's Ownership Interest		50.00%
Outstanding Balance		$ 3,892,000
Percentage Guaranteed by the Operating Partnership		100.00%
Maximum Guaranteed Amount		$ 5,987,000
Obligation recorded to reflect guaranty		$ 60,000	$ 0
York Town Center, LP
Guarantees [Abstract]
Ownership interest in cost method investment (as a percent)		50.00%