Investments Summarized Information (Details) (ModusLink, USD $) In Thousands, unless otherwise specified	3 Months Ended
Jan. 31, 2015	Jan. 31, 2014	Jul. 31, 2014
ModusLink
Equity Method Investment, Summarized Financial Information, Liabilities and Equity [Abstract]
Current assets	$ 415,829		$ 405,768
Non-current assets	41,193		45,878
Current liabilities	210,180		198,594
Non-current liabilities	83,650		81,434
Stockholders' equity	163,192		171,618
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Net revenue	148,310	194,011
Gross profit	16,594	22,580
(Loss) income from continuing operations	(1,556)	1,063
Net (loss) income	$ (1,566)	$ 1,064

The amount of current assets reported by an equity method investment of the entity.

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

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-Name Accounting Standards Codification

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The amount of current liabilities reported by an equity method investment of the entity.

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Amount of equity, including noncontrolling interest, reported by an equity method investment of the entity.

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

-Publisher FASB

-Name Accounting Standards Codification

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The amount of gross profit (loss) reported by an equity method investment of the entity.

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The amount of income (loss) from continuing operations before extraordinary items reported by an equity method investment of the entity.

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The amount of net income (loss) reported by an equity method investment of the entity.

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The amount of noncurrent assets reported by an equity method investment of the entity.

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The amount of noncurrent liabilities reported by an equity method investment of the entity.

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- Definition

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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