Amount of gain recorded in Income Statement related to forgiveness of debt.

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The the fair value of unamortized debt adjustments.

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Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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-Name Accounting Standards Codification
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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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Net increase or decrease in the carrying amount of the debt instrument for the period.

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-Subparagraph (SX 210.4-08.(f))
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Contractual interest rate for funds borrowed, under the debt agreement.

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Weighted average interest rate of debt outstanding.

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No definition available.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of addition (reduction) to the amount at which a liability could be incurred (settled) in a current transaction between willing parties.

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No definition available.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing 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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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing 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 long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing 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 long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing 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 long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing 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 long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing 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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The number of real estate properties owned as of the balance sheet date.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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Note 14 - Mortgages Payable (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Gain (Loss) on Extinguishment of Debt	$ (45,674)
Maximum [Member]
Debt Instrument, Interest Rate, Stated Percentage			7.00%
Mortgages [Member]
Number of Real Estate Properties	47	27
Long-term Debt, Fair Value	$ 2,100	$ 1,400
Repayments of Long-term Debt	703,000	557,000
Gain (Loss) on Extinguishment of Debt	(9,200)
Debt Instrument, Increase (Decrease), Net	(25,600)
Liabilities, Fair Value Adjustment	$ 400
Debt, Weighted Average Interest Rate	4.94%
Unamortized Fair Value Debt Adjustments	$ 27,700
Unamortized Debt Issuance Expense	3,000
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months	462,400
Long-term Debt, Maturities, Repayments of Principal in Year Two	124,400
Long-term Debt, Maturities, Repayments of Principal in Year Three	115,900
Long-term Debt, Maturities, Repayments of Principal in Year Four	101,200
Long-term Debt, Maturities, Repayments of Principal in Year Five	145,400
Long-term Debt, Maturities, Repayments of Principal after Year Five	$ 165,100
Mortgages [Member] \| Minimum [Member]
Debt Instrument, Interest Rate, Stated Percentage	1.91%
Mortgages [Member] \| Maximum [Member]
Debt Instrument, Interest Rate, Stated Percentage	9.75%
Mortgages [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	1.35%
Mortgages [Member] \| Other Income (Expense), Net [Member]
Gain on Forgiveness of Debt	$ 3,100
Mortgages [Member] \| Fair Market Value Adjustment Amount [Member]
Long-term Debt, Fair Value	4,300	27,600
Mortgages [Member] \| Operating Properties [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	$ 289,000	$ 835,200
Mortgages [Member] \| Operating Properties [Member] \| Acquired [Member]
Number of Real Estate Properties	10	38