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Investments in Unconsolidated Entities (Details Textual) | 1 Months Ended | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Feb. 28, 2019 | Jan. 31, 2019 USD ($) joint_ventures Homes_sold rental_units home_sites | Jan. 31, 2018 USD ($) Homes_sold home_sites | Feb. 01, 2019 USD ($) | Oct. 31, 2018 USD ($) | Nov. 01, 2017 USD ($)
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Equity Method Investment, Summarized Financial Information, Revenue |  | $ 153,230,000 | $ 193,620,000 |  |  |
Revenues |  | 1,363,181,000 | 1,175,468,000 |  |  |
Land sales earnings, net |  | 0 | $ 700,000 |  |  |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures |  | 409,374,000 |  |  | $ 431,813,000 |
Line of Credit Facility, Maximum Borrowing Capacity |  | 1,623,192,000 |  |  |  |
Long-term Line of Credit |  | 1,207,715,000 |  |  |  |
Other Commitment |  | $ 28,040,000 |  |  |  |
Number of Joint Ventures | joint_ventures |  | 35 |  |  |  |
Land Development Joint Ventures [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Home sites sold | home_sites |  | 201 | 249 |  |  |
Equity Method Investment, Summarized Financial Information, Revenue |  | $ 89,800,000 | $ 40,200,000 |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 97,132,000 |  |  |  |
Long-term Line of Credit |  | $ 78,487,000 |  |  |  |
Home Building Joint Ventures, Total [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Home sites sold | Homes_sold |  | 17 | 28 |  |  |
Equity Method Investment, Summarized Financial Information, Revenue |  | $ 27,300,000 | $ 32,600,000 |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | 381,116,000 |  |  |  |
Long-term Line of Credit |  | $ 309,556,000 |  |  |  |
Rental Joint Ventures, including the Trust [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Number of Real Estate Properties | joint_ventures |  | 20 |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 1,144,944,000 |  |  |  |
Long-term Line of Credit |  | $ 819,672,000 |  |  |  |
Rental Property Joint Ventures College Park, Maryland [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Assets, Fair Value Disclosure |  |  |  |  |  | $ 219,000,000.0
Toll Brothers Realty Trust [Member] | Co-venturer [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  | 33.30% |  |  |  |
Toll Brothers Realty Trust [Member] | Management [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  | 33.30% |  |  |  |
Rental Property Joint Venture Woburn MA [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Number of Units in Real Estate Property |  | 289 |  |  |  |
Rental Property Joint Ventures Harrison NY and Frisco TX [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Number of Real Estate Properties | joint_ventures |  | 2 |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 134,400,000 |  |  |  |
Long-term Line of Credit |  | 0 |  |  |  |
Rental Property Joint Ventures Harrison NY and Frisco TX [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Payments to Acquire and Develop Real Estate |  | 41,900,000 |  |  |  |
Land sales earnings, net |  | 8,400,000 |  |  |  |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures |  | $ 12,700,000 |  |  |  |
Rental Property Joint Ventures Harrison NY and Frisco TX [Member] | Co-venturer [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  | 75.00% |  |  |  |
Land Development Joint Ventures [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures |  | $ 154,633,000 |  |  |  |
Number of Joint Ventures | joint_ventures |  | 7 |  |  |  |
Land Development Joint Ventures [Member] | Equity Method Investee [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Home sites sold | home_sites |  | 107 | 30 |  |  |
Equity Method Investment, Summarized Financial Information, Revenue |  | $ 71,200,000 | $ 3,200,000 |  |  |
Equity Method Investment, Deferred Gain on Sale |  |  | 500,000 |  |  |
Rental Property Joint Ventures College Park, Maryland [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Proceeds from Sale of Equity Method Investments |  |  | 39,300,000 |  |  |
Equity Method Investment, Realized Gain (Loss) on Disposal |  |  | 30,800,000 |  |  |
Toll Brothers Realty Trust [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  | 33.30% |  |  |  |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures |  | $ 0 |  |  |  |
Property Management Fee Revenue |  | $ 300,000 | 600,000 |  |  |
Gibraltar Joint Ventures [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  | 25.00% |  |  |  |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures |  | $ 17,039,000 |  |  |  |
Number of Joint Ventures | joint_ventures |  | 7 |  |  |  |
Gibraltar Land Banking & Development Joint Ventures [Member] [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Number of Joint Ventures | joint_ventures |  | 5 |  |  |  |
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 |  | 2,100 |  |  |  |
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 |  | 1,500 |  |  |  |
Asset under Construction [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Number of Units in Real Estate Property | rental_units |  | 1,450 |  |  |  |
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 |  | 1,450 |  |  |  |
In Planning Phase [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Number of Units in Real Estate Property | rental_units |  | 13,050 |  |  |  |
Line of Credit [Member] | Rental Property Joint Ventures College Park, Maryland [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  | $ 110,000,000.0
Subsequent Event [Member] | Rental Property Joint Venture Tempe AZ [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Number of Units in Real Estate Property |  |  |  | 263 |  |
Rental Property Joint Ventures Boston MA, San Diego CA and Miami FL [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Number of Real Estate Properties | joint_ventures |  | 3 |  |  |  |
Real Estate Investment Property, at Cost |  | $ 62,400,000 |  |  |  |
Rental Property Joint Venture Tempe AZ [Member] | Subsequent Event [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Real Estate Investment Property, at Cost |  |  |  | $ 17,000,000.0 |  |
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage | 87.00% |  |  |  |  |
Rental Property Joint Venture Woburn MA [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Real Estate Investment Property, at Cost |  | $ 15,900,000 |  |  |  |
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage |  | 85.00% |  |  |  |
Noncontrolling Interest in Variable Interest Entity |  | 15.00% |  |  |  |
Variable Interest Entity, Primary Beneficiary [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Variable Interest Entity, Consolidated, Carrying Amount, Assets |  | $ 115,500,000 |  |  |  |
Noncontrolling Interest in Variable Interest Entity |  | 35,700,000 |  |  |  |
Variable Interest Entity, Primary Beneficiary [Member] | Rental Property Joint Ventures Boston MA, San Diego CA and Miami FL [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Variable Interest Entity, Consolidated, Carrying Amount, Assets |  | 95,800,000 |  |  |  |
Noncontrolling Interest in Variable Interest Entity |  | 32,900,000 |  |  |  |
Variable Interest Entity, Primary Beneficiary [Member] | Rental Property Joint Venture Woburn MA [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Variable Interest Entity, Consolidated, Carrying Amount, Assets |  | 19,700,000 |  |  |  |
Noncontrolling Interest in Variable Interest Entity |  | 2,800,000 |  |  |  |
Land [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Revenues |  | 43,873,000 | $ 0 |  |  |
Land [Member] | Rental Property Joint Ventures Harrison NY and Frisco TX [Member] | Co-venturer [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Revenues |  | 39,800,000 |  |  |  |
Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member] | Land Development Joint Ventures [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Other Commitment |  | 15,869,000 |  |  |  |
Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member] | Gibraltar Joint Ventures [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Other Commitment |  | 9,621,000 |  |  |  |
Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Venture [Member] | Gibraltar Land Banking & Development Joint Ventures [Member] [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Other Commitment |  | $ 100,000,000.0 |  |  |  |
Minimum [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage |  | 50.00% |  |  |  |
Maximum [Member] |  |  |  |  |  |
Investments in and Advances to Unconsolidated Entities (Textual) [Abstract] |  |  |  |  |  |
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage |  | 98.00% |  |  |  |

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