The percentage of home sites expected to be sold to each joint venture partner.

No definition available.

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- Definition

Guarantor obligations, recourse provision

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No definition available.

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- Definition

Home sites sold

+ References

No definition available.

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- Definition

Investments in and advances to unconsolidated entities.

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No definition available.

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Represents the excess (deficiency) of revenue from the sale of land over the cost to acquire, which is recognized in other nonoperating income.

+ References

No definition available.

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Period the Line of Credit Facility is outstanding, 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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- Definition

Number of unconsolidated joint ventures, in which the Company has an interest.

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No definition available.

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- Definition

Real Estate Owned & Distressed Loans, Sales

+ References

No definition available.

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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.

+ References

No definition available.

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This element represents disclosure of the amount of gain which has been deferred as the result of the sale of a business or operating assets to a highly leveraged entity which deferred gain has been reflected in the accompanying statement of financial position as reduction from the related asset.

+ References

No definition available.

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- Definition

Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities.

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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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Amount of gain (loss) on sale or disposal of an equity method investment.

+ References

No definition available.

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The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

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The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

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The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession.

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The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

+ References

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Revenue from the sale of land in the reporting period.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Balance Type:	credit
Period Type:	instant

- Definition

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.

+ References

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Balance Type:	credit
Period Type:	instant

- Definition

Revenue, comprised of base and incentive revenue derived from the management of joint ventures, managing third-party properties, or another entity's operations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Paragraph 2
-Subparagraph (SX 210.5-03.1(d))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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The number of units in a real estate property owned as of the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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No definition available.

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Balance Type:	credit
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Total distributions to each class of partners (i.e., general, limited and preferred partners).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The cash outflow from the acquisition of a piece of land and anything permanently fixed to it, including buildings, structures on it and so forth, and payments to develop real estate assets by adding improvements on or to a parcel of land. Such improvements may include drainage, utilities, subdividing, access, buildings, and any combination of these elements. Including real estate intended to generate income for the owner; excluding real estate acquired for use by the owner.

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- Definition

The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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- Definition

The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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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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Amount of deferred gross profit, realized on retail land sale transaction accounted for under the installment method.

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-URI http://asc.fasb.org/extlink&oid=95464485&loc=d3e6772-110236

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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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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Investments in Unconsolidated Entities (Details Textual)			1 Months Ended	3 Months Ended						6 Months Ended	9 Months Ended		12 Months Ended	35 Months Ended
	Apr. 28, 2017 USD ($)	Jan. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jul. 31, 2017 USD ($) joint_ventures Homes_sold rental_units home_sites	Apr. 30, 2017 USD ($)	Jan. 31, 2017 USD ($)	Jul. 31, 2016 USD ($) Homes_sold home_sites	Apr. 30, 2016 USD ($)	Jan. 31, 2016 USD ($)	Apr. 30, 2017	Jul. 31, 2017 USD ($) joint_ventures Homes_sold rental_units home_sites	Jul. 31, 2016 USD ($) Homes_sold home_sites	Oct. 31, 2016 USD ($)	Mar. 08, 2016 USD ($)	Apr. 15, 2016 USD ($)
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Land Sales				$ 4,633,000			$ 64,109,000				$ 151,470,000	$ 77,701,000
Equity Method Investment, Summarized Financial Information, Revenue				189,714,000			60,755,000				690,441,000	226,772,000
Escrow Deposit				46,937,000							46,937,000		$ 138,633,000
Other Commitment				52,871,000							52,871,000
Payments to Acquire Equity Method Investments											119,714,000	40,627,000	69,655,000
Proceeds from Equity Method Investment, Distribution											125,138,000	14,615,000
Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures				514,265,000							514,265,000		496,411,000
Land sales earnings, net				2,417,000			6,527,000				7,503,000	11,018,000
Line of Credit Facility, Maximum Borrowing Capacity				1,532,906,000							1,532,906,000
Long-term Line of Credit				$ 1,143,321,000							$ 1,143,321,000
Number of Joint Ventures \| joint_ventures				29							29
Management Fees Revenue				$ 2,477,000			$ 2,348,000				$ 10,448,000	$ 6,863,000
Land Development Joint Venture, Irvine, California [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Number of Units in Real Estate Property \| home_sites				840							840
Expected Percentage Of Homes To Be Sold To Each Joint Venture Partner											50.00%
Secured Debt													320,000,000
Payments to Acquire Equity Method Investments			$ 80,000,000
Line of Credit Facility, Maximum Borrowing Capacity				$ 200,000,000							$ 200,000,000
Long-term Line of Credit				$ 198,000,000							$ 198,000,000
Home Building Joint Ventures, Total [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Home sites sold \| Homes_sold				33			21				176	61
Equity Method Investment, Summarized Financial Information, Revenue				$ 81,000,000			$ 17,900,000				$ 451,600,000	$ 55,400,000
Line of Credit Facility, Maximum Borrowing Capacity				236,500,000							236,500,000
Long-term Line of Credit				100,989,000							100,989,000
Home Building Joint Venture Metro New York Four [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity				236,500,000							236,500,000
Long-term Line of Credit				$ 101,000,000							$ 101,000,000
Rental Joint Ventures, including the Trust [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Number of Real Estate Properties \| joint_ventures				12							12
Line of Credit Facility, Maximum Borrowing Capacity				$ 1,021,406,000							$ 1,021,406,000
Long-term Line of Credit				780,157,000							780,157,000
Rental Property Joint Ventures Northern New Jersey [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity				70,000,000							70,000,000
Long-term Line of Credit				56,800,000							56,800,000
Rental Property Joint Ventures Jersey City [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Debt Instrument, Term	10 years
Long-term Debt				133,000,000							133,000,000
Rental Property Joint Venture Suburban Philadelphia [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Debt Instrument, Term		10 years
Long-term Debt				$ 56,000,000							$ 56,000,000
Rental Property Joint Venture Boston Suburb [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Number of Units in Real Estate Property \| rental_units				390							390
Line of Credit Facility, Maximum Borrowing Capacity				$ 91,000,000							$ 91,000,000
Long-term Line of Credit				$ 1,000,000							$ 1,000,000
Rental Property Joint Ventures Metro Washington, D.C. [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Number of Units in Real Estate Property				525							525
Line of Credit Facility, Maximum Borrowing Capacity				$ 130,600,000							$ 130,600,000
Long-term Line of Credit				11,000,000							$ 11,000,000
Rental Property Joint Venture Metro New York [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Line of Credit Facility, term of contract											3 years
Long-term Debt				$ 80,000,000							$ 80,000,000
Toll Brothers Realty Trust [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Partners' Capital Account, Distributions									$ 2,000,000		$ 0
Toll Brothers Realty Trust [Member] \| Co-venturer [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Equity Method Investment, Ownership Percentage				33.30%							33.30%
Toll Brothers Realty Trust [Member] \| Management [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Equity Method Investment, Ownership Percentage				33.30%							33.30%
Land Development Joint Ventures [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Home sites sold \| home_sites				362			95				871	634
Land Sales				$ 115,000,000			$ 27,800,000				$ 215,900,000	$ 126,500,000
Other than temporary impairment losses, investment				0							2,000,000	$ 0
Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures				$ 283,248,000							$ 283,248,000
Number of Joint Ventures \| joint_ventures				7							7
Land Development Joint Ventures [Member] \| Equity Method Investee [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Home sites sold \| home_sites				126			66				288	178
Equity Method Investment, Deferred Gain on Sale				$ 5,900,000			$ 3,700,000				$ 12,900,000	$ 8,900,000
Equity Method Investment, Summarized Financial Information, Revenue				76,300,000			25,900,000				122,500,000	61,200,000
Land Development Joint Ventures [Member] \| Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Other Commitment				$ 33,950,000							$ 33,950,000
Land Development Joint Venture, Irvine, California [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Equity Method Investment, Ownership Percentage				50.00%							50.00%
Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures				$ 180,700,000							$ 180,700,000
Land Development Joint Venture, Irvine, California [Member] \| Equity Method Investee [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Home sites sold \| home_sites				48
Equity Method Investment, Summarized Financial Information, Revenue				$ 43,300,000
Land Development Joint Venture, Irvine, California [Member] \| Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Other Commitment				$ 3,600,000							3,600,000
Home Building Joint Venture Metro New York Four [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Land Sales											$ 143,300,000
Payments to Acquire and Develop Real Estate			176,000,000
Escrow Deposit													106,100,000
Equity Method Investment, Ownership Percentage				20.00%							20.00%
Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures				$ 30,100,000							$ 30,100,000
Proceeds from Sale of Real Estate			$ 148,000,000
Rental Property Joint Ventures Northern New Jersey [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Guarantor obligations, recourse provision				100.00%						0.00%
Rental Property Joint Ventures Jersey City [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Equity Method Investment, Ownership Percentage				25.00%							25.00%
Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures				$ 8,000,000							$ 8,000,000
Rental Property Joint Venture Suburban Philadelphia [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Equity Method Investment, Ownership Percentage				25.00%							25.00%
Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures				$ 3,200,000							$ 3,200,000
Rental Property Joint Venture Boston Suburb [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Equity Method Investment, Ownership Percentage				25.00%							25.00%
Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures				$ 11,400,000							$ 11,400,000
Rental Property Joint Ventures Metro Washington, D.C. [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Payments to Acquire and Develop Real Estate														$ 35,100,000
Proceeds from Equity Method Investment, Distribution												18,700,000
Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures				29,800,000							29,800,000
Land sales earnings, net												3,000,000
Retail Land Sales, Installment Method, Gross Profit, Deferred							2,607,000					$ 2,607,000	$ 2,999,000
Rental Property Joint Ventures Metro Washington, D.C. [Member] \| Co-venturer [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Land Sales							$ 20,200,000
Equity Method Investment, Ownership Percentage							50.00%					50.00%
Rental Property Joint Venture Metro New York [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Equity Method Investment, Ownership Percentage				50.00%							50.00%
Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures				$ 35,700,000							$ 35,700,000
Toll Brothers Realty Trust [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Equity Method Investment, Ownership Percentage				33.30%							33.30%
Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures				$ 0							$ 0
Management Fees Revenue				$ 600,000			$ 400,000				$ 1,400,000	$ 1,200,000
Gibraltar Land Banking & Development Joint Ventures [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Equity Method Investment, Ownership Percentage				25.00%							25.00%
Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures				$ 8,800,000							$ 8,800,000
Number of Joint Ventures \| joint_ventures				3							3
Gibraltar Land Banking & Development Joint Ventures [Member] \| Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Other Commitment				$ 100,000,000							$ 100,000,000
Gibraltar Legacy Assets Joint Venture [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Equity Method Investment, Ownership Percentage				24.00%							24.00%
Gains (Losses) on Sales of Other Real Estate								$ 1,300,000
Investments in Affiliates, Subsidiaries, Associates, and Joint Ventures				$ 4,200,000							$ 4,200,000
Real Estate Owned & Distressed Loans, Sales															$ 24,100,000.00
Gibraltar Legacy Assets Joint Venture [Member] \| Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Other Commitment				$ 9,600,000							$ 9,600,000
Occupied or Ready for Occupancy [Member] \| Rental Joint Ventures, including the Trust [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Number of Units in Real Estate Property \| rental_units				2,950							2,950
Lease up Stage [Member] \| Rental Joint Ventures, including the Trust [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Number of Units in Real Estate Property \| rental_units				1,000							1,000
Asset under Construction [Member] \| Rental Joint Ventures, including the Trust [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Number of Units in Real Estate Property \| rental_units				1,650							1,650
In Planning Phase [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Number of Units in Real Estate Property \| rental_units				7,000							7,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] \| Rental Property Joint Ventures Jersey City [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Proceeds from Sale of Equity Method Investments	$ 42,900,000
Equity Method Investment, Realized Gain (Loss) on Disposal					$ 20,500,000						$ 20,500,000
Equity Method Investment, Ownership Percentage	25.00%
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] \| Rental Property Joint Venture Suburban Philadelphia [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Proceeds from Sale of Equity Method Investments		$ 12,000,000
Equity Method Investment, Realized Gain (Loss) on Disposal						$ 6,200,000					$ 6,200,000
Equity Method Investment, Ownership Percentage		25.00%				25.00%
Line of Credit [Member] \| Rental Property Joint Ventures Jersey City [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Long-term Line of Credit	$ 112,200,000
Line of Credit [Member] \| Rental Property Joint Venture Suburban Philadelphia [Member]
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract]
Long-term Line of Credit		$ 54,100,000				$ 54,100,000