Investments in Unconsolidated Entities Investments in Unconsolidated Entities (Details Textual 2) $ in Thousands	12 Months Ended
	Oct. 31, 2017 USD ($) joint_ventures	Oct. 31, 2016 USD ($) joint_ventures
Statement of Investments in and Advances to Unconsolidated Entities [Line Items]
Amounts borrowed under commitments	$ 1,199,600
Investments in unconsolidated entities	481,758	$ 496,411
Other Commitment	52,492
Line of Credit Facility, Maximum Borrowing Capacity	1,680,900
Equity Method Investee [Member]
Statement of Investments in and Advances to Unconsolidated Entities [Line Items]
Guarantees, Fair Value Disclosure	4,900
Indirect Guarantee of Indebtedness [Member] | Equity Method Investee [Member]
Statement of Investments in and Advances to Unconsolidated Entities [Line Items]
Amounts borrowed under commitments	747,700
Maximum repapyment and carry cost guarantee obligation for borrowings by JV	228,900
Line of Credit Facility, Maximum Borrowing Capacity	1,229,000
Guarantees, Repayment and Carry Cost, Maximum	$ 291,900
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	P10M
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	P37M
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	8	3
Investments in unconsolidated entities	$ 35,900	$ 16,400
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	70,000
Maximum repapyment and carry cost guarantee obligation for borrowings by JV	61,300	8,800
Guarantees, Repayment and Carry Cost, Maximum	70,000	14,300
Commitment To Advance Or Invest In Affiliates Subsidiaries And Joint Ventures [Member] | Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member] | Equity Method Investee [Member]
Statement of Investments in and Advances to Unconsolidated Entities [Line Items]
Other Commitment	$ 10,500	$ 1,400