This element represents the portion of amount held back from the net proceeds of existing mortgage.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Represents the net gain (loss) anticipated over the terms of agreements during the reporting period representing the amount of the cash flow hedges' ineffectiveness.

+ References

No definition available.

+ Details

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- Definition

Area of real estate that have been pledged as collateral for borrowings.

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No definition available.

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- Definition

Represents the amortization period of the debt instrument.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest rate swap agreements entered into related to the borrowed funds.

+ References

No definition available.

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- Definition

This element represents the amount used to refinance the existing mortgage.

+ References

No definition available.

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- Definition

The designation of funds furnished by a borrower to a lender until the remaining square footage of the building is leased and tenant improvements have been completed with respect to the mortgaged property.

+ References

No definition available.

+ Details

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- Definition

Space currently under lease at the time of initial borrowing.

+ References

No definition available.

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Balance Type:	na
Period Type:	instant

- Definition

Minimum area to be leased to secure additional borrowing.

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No definition available.

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- Definition

Represents the minimum percentage of difference required between the present value of the future payments under the existing loan and the modified loan to account for such differences as debt extinguishment.

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No definition available.

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- Definition

The amount of the mortgage proceeds that were placed into an escrow account.

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No definition available.

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Represents the number of interest rate derivatives containing credit risk related contingent features.

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No definition available.

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Number of mortgages refinanced with Farm Bureau

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No definition available.

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- Definition

Represents the number of multi-story office buildings used as collateral for the loan.

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- Definition

Number of subsidiaries.

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- Definition

The number of years before loans may be voluntarily prepaid.

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No definition available.

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Amount of additional proceeds from the borrowing release upon completion of certain conditions.

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No definition available.

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The threshold of leased space to release the escrow deposits to the entity.

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Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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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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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fixed interest rate related to the interest rate derivative.

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The net gain (loss) recognized in earnings during the reporting period representing the amount of the cash flow hedges' ineffectiveness.

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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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Fair value as of the balance sheet date of all interest rate derivative assets designated as cash flow hedging instruments.

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Fair value as of the balance sheet date of all interest rate derivatives designated as cash flow hedging instruments.

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The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

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Fair value as of the balance sheet date of all interest rate derivative liabilities designated as cash flow hedging instruments.

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Term of the lessor's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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No definition available.

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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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No definition available.

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Number of interest rate derivative instruments held by the entity at the reporting date.

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Amount before tax, after reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss), attributable to parent entity.

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The cash outflow for cost incurred in the modification of term of existing debt agreement in order for the entity to achieve some advantage.

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The carrying amount, as of the date of the latest financial statement presented, of real estate owned but transferred to serve as collateral for the payment of the related debt obligation, primarily a secured borrowing or repurchase agreement, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party.

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The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt.

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Amount of cash inflow (outflow) from long-term debt wholly or partially secured by collateral. Excludes tax exempt secured debt.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Mortgage Loan (Details) $ in Thousands							1 Months Ended	3 Months Ended	12 Months Ended
Mortgage Loan (Details) $ in Thousands	Sep. 01, 2015 USD ($) ft²	Jul. 29, 2015 USD ($) ft² building	Dec. 31, 2014 USD ($) ft² subsidiary	Jun. 06, 2014 USD ($) ft²	Aug. 28, 2013 USD ($) ft²	Apr. 01, 2013 USD ($)	Dec. 31, 2015 USD ($) agreement	Nov. 30, 2015 USD ($) ft² item	Nov. 30, 2015 USD ($) ft² loan item	Nov. 30, 2014 USD ($)	Nov. 30, 2013 USD ($)	Nov. 04, 2015 ft²	Jun. 05, 2014 USD ($)
Long-Term Debt
Nonrecourse mortgage loans								$ 90,436	$ 90,436	$ 70,168
Debt disclosures
Ineffectiveness on cash flow hedges									0
Anticipated ineffectiveness on cash flow hedges									0
Net fair values of interest rate swap agreements included in other noncurrent assets and liabilities										2,322
Net fair values of interest rate swap agreements included in other assets										8
Net fair values of interest rate swap agreements included in other liabilities								2,766	2,766	2,330
Loss on debt extinguishment										(51)	$ (286)
Mortgage proceeds held in escrow								$ 1,600	$ 1,600	1,000
Interest rate swap agreement
Debt disclosures
Number of agreements containing credit risk related contingent features \| item								0	0
Recognized net losses (included in other comprehensive loss), before taxes, on interest rate swap agreements									$ (444)	(100)	$ 969
Loss expected to be reclassified over next twelve months from accumulated other comprehensive loss to interest expense								$ (1,186)	(1,186)
Nonrecourse mortgages
Long-Term Debt
Nonrecourse mortgage loans								90,436	90,436	70,168
Annual principal payment requirements under the terms of the nonrecourse mortgage loans
2016								2,544	2,544
2017								8,517	8,517
2018								2,611	2,611
2019								18,648	18,648
2020								5,296	5,296
Debt disclosures
Aggregate book value of land and buildings pledged as collateral								$ 109,208	$ 109,208
Nonrecourse mortgages: 5.73%, due August 1, 2015
Long-Term Debt
Interest rate (as a percent)		5.73%						5.73%	5.73%
Nonrecourse mortgage loans										18,189
Debt disclosures
Debt amount refinanced		$ 17,891
Number of collateralized industrial buildings \| building		3
Nonrecourse mortgages: 5.73%, due August 1, 2015 \| New England Tradeport Industrial Park
Debt disclosures
Area of collateralized properties (in square feet) \| ft²		392,000
Nonrecourse variable rate loans, due October 2, 2017
Long-Term Debt
Nonrecourse mortgage loans								$ 6,217	$ 6,217	6,394
Nonrecourse variable rate loans, due February 1, 2019
Long-Term Debt
Nonrecourse mortgage loans								10,610	10,610	10,888
Nonrecourse variable rate loans, due August 1, 2019
Long-Term Debt
Nonrecourse mortgage loans								7,501	7,501	7,691
Nonrecourse variable rate loans, due January 27, 2020
Long-Term Debt
Nonrecourse mortgage loans								3,729	3,729	3,848
Debt disclosures
Fixed interest rate pursuant to interest rate swap agreement (as a percent)						3.91%
Amount paid for the loan modification						$ 70
Minimum percentage of difference required between the present values of the future payments under the existing loan and the modified loan						10.00%
Nonrecourse variable rate loans, due September 1, 2023
Long-Term Debt
Nonrecourse mortgage loans										8,875
Nonrecourse variable rate loans, due January 2, 2025
Long-Term Debt
Nonrecourse mortgage loans								19,385	19,385
Nonrecourse variable rate mortgage, due September 1, 2025
Long-Term Debt
Nonrecourse mortgage loans	$ 14,100							$ 11,457	$ 11,457
Debt disclosures
Proceeds from issuance of debt	11,500
Amount held back from net proceeds	$ 2,600
Term of debt	10 years
Amortization period of debt	25 years
Variable interest rate margin (as a percent)	1.65%
Effective rate after interest rate swap agreements							3.75%
Additional funding from the borrowing							$ 2,600
Nonrecourse variable rate mortgage, due September 1, 2025 \| Lehigh Valley Of Pennsylvania Industrial Building
Debt disclosures
Area of collateralized properties (in square feet) \| ft²	280,000
Nonrecourse variable rate mortgage, due September 1, 2025 \| 5220 Jaindl Boulevard
Debt disclosures
Currently Leased space at the time of borrowing \| ft²												196,000
Nonrecourse variable rate mortgage, due September 1, 2025 \| Interest rate swap agreement
Debt disclosures
Fixed interest rate pursuant to interest rate swap agreement (as a percent)	3.77%						3.67%
Notional principal amount of interest rate swap agreement							$ 2,600
Nonrecourse variable rate mortgage, due September 1, 2025 \| Interest rate swap agreement \| Cash flow hedges
Debt disclosures
Notional principal amount of interest rate swap agreement	$ 11,500
5.09%, due July 1, 2029 GCD mortgage loan
Long-Term Debt
Interest rate (as a percent)								5.09%	5.09%
Nonrecourse mortgage loans								$ 7,385	$ 7,385	7,750
5.09%, due July 1, 2029 TD mortgage Loan
Long-Term Debt
Interest rate (as a percent)								5.09%	5.09%
Nonrecourse mortgage loans								$ 6,226	$ 6,226	$ 6,533
4.33%, due August 1, 2030 mortgage loan
Long-Term Debt
Interest rate (as a percent)		4.33%
Nonrecourse mortgage loans		$ 18,000						17,926	$ 17,926
Debt disclosures
Proceeds from issuance of debt		$ 14,875
Term of debt		15 years
Amortization period of debt		30 years
Number of collateralized industrial buildings \| building		3
Mortgage proceeds deposited into an escrow account		$ 3,125
Additional funding from the borrowing								2,500
4.33%, due August 1, 2030 mortgage loan \| New England Tradeport Industrial Park
Debt disclosures
Additional funding from the borrowing								$ 25
4.33%, due August 1, 2030 mortgage loan \| New England Tradeport Industrial Park \| Location 1
Debt disclosures
Threshold of leased space to release escrow deposits (in square feet) \| ft²								88,000	88,000
4.33%, due August 1, 2030 mortgage loan \| New England Tradeport Industrial Park \| Location 2
Debt disclosures
Mortgage proceeds deposited into an escrow account		$ 600
Nonrecourse mortgages: 5.25%, due January 27, 2020
Debt disclosures
Variable interest rate margin (as a percent)						5.25%
Deferred costs related to the existing loan with First Niagara Bank						$ 216
5.09%, due July 1, 2029 GCD Mortgage Loan and 5.09%, due July 1, 2029 TD Mortgage Loan
Debt disclosures
Number of years before any prepayments can be made									7 years
8.13% mortgage due April 1, 2016 and 7.0% mortgage due October 2, 2017
Debt disclosures
Number of mortgages refinanced with Farm Bureau \| loan									2
Loss on debt extinguishment									$ 51
2023 First Niagara Mortgage
Debt disclosures
Debt amount refinanced			$ 8,859
Term of debt					10 years
Amortization period of debt					25 years
Borrowings by subsidiary					$ 9,100
2023 First Niagara Mortgage \| Lower Nazareth, Pennsylvania
Debt disclosures
Area of collateralized properties (in square feet) \| ft²					4,275
Lease term					5 years
2023 First Niagara Mortgage \| Lower Nazareth, Pennsylvania \| Location 1
Debt disclosures
Area of collateralized properties (in square feet) \| ft²			228,000
2023 First Niagara Mortgage \| Interest rate swap agreement
Debt disclosures
Fixed interest rate pursuant to interest rate swap agreement (as a percent)					4.79%
Notional principal amount of interest rate swap agreement					$ 9,100
2025 First Niagara Mortgage
Debt disclosures
Number of subsidiaries which are refinancing nonrecourse mortgage loan \| subsidiary			2
Amount held back from net proceeds			$ 1,850
Term of debt			10 years
Variable interest rate margin (as a percent)			1.95%
Effective rate after interest rate swap agreements			4.43%				4.39%
Maximum borrowing			$ 21,600
Net proceeds			$ 10,891
Additional funding from the borrowing							$ 1,850
Number of interest rate swap derivatives \| agreement							3
2025 First Niagara Mortgage \| Lower Nazareth, Pennsylvania \| Location 2
Debt disclosures
Area of collateralized properties (in square feet) \| ft²			303,000
Space to be leased to secure the additional borrowing (in square feet) \| ft²			102,000
2025 First Niagara Mortgage \| Interest rate swap agreement
Debt disclosures
Fixed interest rate pursuant to interest rate swap agreement (as a percent)							3.88%
Notional principal amount of interest rate swap agreement							$ 1,850
Griffin Center Development LLC \| 5.09%, due July 1, 2029 GCD mortgage loan
Long-Term Debt
Interest rate (as a percent)				5.09%
Nonrecourse mortgage loans				$ 7,868
Debt disclosures
Term of debt				15 years
Amortization period of debt				15 years
Griffin Center Development LLC \| Nonrecourse mortgages: 8.13%, due April 1, 2016
Long-Term Debt
Interest rate (as a percent)													8.13%
Nonrecourse mortgage loans													$ 3,391
Griffin Center Development LLC \| Nonrecourse mortgages: 8.13%, due April 1, 2016 \| Windsor Connecticut Flex Building
Debt disclosures
Area of collateralized properties (in square feet) \| ft²				165,000
Tradeport Development LLC \| Nonrecourse variable rate loans, due October 2, 2017
Long-Term Debt
Interest rate (as a percent)				5.09%
Nonrecourse mortgage loans				$ 6,632
Debt disclosures
Term of debt				15 years
Amortization period of debt				15 years
Mortgage proceeds held in escrow				$ 1,000
Tradeport Development LLC \| Nonrecourse mortgages: 7.0%, due October 1, 2017
Long-Term Debt
Interest rate (as a percent)													7.00%
Nonrecourse mortgage loans													$ 5,632
Tradeport Development LLC \| Nonrecourse mortgages: 7.0%, due October 1, 2017 \| Windsor Connecticut Industrial Building \| Location 1
Debt disclosures
Area of collateralized properties (in square feet) \| ft²				100,000
Tradeport Development LLC \| Nonrecourse mortgages: 7.0%, due October 1, 2017 \| Windsor Connecticut Industrial Building \| Location 2
Debt disclosures
Area of collateralized properties (in square feet) \| ft²				57,000
LIBOR \| Nonrecourse variable rate loans, due January 27, 2020
Debt disclosures
Variable interest rate margin (as a percent)						2.50%
LIBOR \| 2023 First Niagara Mortgage
Debt disclosures
Variable interest rate margin (as a percent)					1.95%