Investments in Unconsolidated Entities Investments in Unconsolidated Entities (Details Textual 2) $ in Thousands	12 Months Ended
	Oct. 31, 2016 USD ($) joint_ventures	Oct. 31, 2015 USD ($) joint_ventures
Statement of Investments in and Advances to Unconsolidated Entities [Line Items]
Amounts borrowed under commitments	$ 1,159,789
Investments in unconsolidated entities	496,411	$ 412,860
Other Commitment	273,812
Line of Credit Facility, Maximum Borrowing Capacity	1,459,519
Equity Method Investee [Member]
Statement of Investments in and Advances to Unconsolidated Entities [Line Items]
Guarantees, Fair Value Disclosure	4,800
Indirect Guarantee of Indebtedness [Member] | Equity Method Investee [Member]
Statement of Investments in and Advances to Unconsolidated Entities [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	875,700
Amounts borrowed under commitments	576,000
Maxiumum guarantor obigation for borrowings by JVs	576,000
Maximum repapyment and carry cost guarantee obligation for borrowings by JV	61,500
Line of Credit Facility, Maximum Borrowing Capacity	875,700
Guarantees, Repayment and Carry Cost, Maximum	$ 87,000
Indirect Guarantee of Indebtedness [Member] | Equity Method Investee [Member] | Minimum [Member]
Statement of Investments in and Advances to Unconsolidated Entities [Line Items]
Guarantor Obligations, Term	P1M
Indirect Guarantee of Indebtedness [Member] | Equity Method Investee [Member] | Maximum [Member]
Statement of Investments in and Advances to Unconsolidated Entities [Line Items]
Guarantor Obligations, Term	P48M
Ground Lease and Insurance Deductible Guarantee Member [Member] | Equity Method Investee [Member]
Statement of Investments in and Advances to Unconsolidated Entities [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 4,300
Number of JVs, ground lease and other	3
Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member] | Equity Method Investee [Member]
Statement of Investments in and Advances to Unconsolidated Entities [Line Items]
Number Of Unconsolidated Entities That Are Considered Variable Interest Entities | joint_ventures	3	1
Investments in unconsolidated entities	$ 16,400	$ 6,700
Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member] | Indirect Guarantee of Indebtedness [Member] | Equity Method Investee [Member]
Statement of Investments in and Advances to Unconsolidated Entities [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted	70,000	89,800
Maximum repapyment and carry cost guarantee obligation for borrowings by JV	14,300	14,300
Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member] | Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Ventures [Member] | Equity Method Investee [Member]
Statement of Investments in and Advances to Unconsolidated Entities [Line Items]
Other Commitment	$ 1,400	$ 400