Fair Value Measurements of Other Financial Instruments (Details) (USD $)	Apr. 30, 2014	Oct. 31, 2013
Carrying And Fair Value [Line Items]
Carrying value of other investments	$ 3,734,000	$ 2,951,000
Carrying value of other assets related to Hexavest option	7,564,000	7,960,000
Carrying value of debt	573,577,000	573,499,000
Carrying value of non-controlling capital interest in ACM Holdings		2,100,000
Fair value of non-controlling capital interest in ACM Holdings	2,000,000	2,100,000
Level 2 [Member]
Carrying And Fair Value [Line Items]
Fair value of debt	614,823,000	611,081,000
Level 3 [Member]
Carrying And Fair Value [Line Items]
Fair value of other investments	3,734,000	2,951,000
Fair value of other assets related to Hexavest option	$ 7,564,000	$ 7,960,000
Hexavest [Member]
Carrying And Fair Value [Line Items]
Additional interest that may be purchased by the company	26.00%	26.00%

Additional interest that maybe purchased by the Company in future periods.

No definition available.

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- Details

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- Definition

Carrying amount of the capital interests owned by noncontrolling partners of a limited liability company included in the entity's consolidated financial statements.

+ References

No definition available.

+ Details

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- Definition

Fair value of the capital interests owned by noncontrolling partners of a limited liability company included in the entity's consolidated financial statements.

+ References

No definition available.

+ Details

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- Definition

The fair value of other investments held by the Company.

+ References

No definition available.

+ Details

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 9

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20, 22

-Article 5

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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- Definition

Fair value portion of other assets.

+ References

No definition available.

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- Definition

Amount of other miscellaneous assets.

+ References

No definition available.

+ Details

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- Definition

Includes other investments and securities that are not at fair value as of the balance sheet date and those that are not accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.1)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph a

-Subparagraph 1(g)

-Article 7

+ Details

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