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Goodwill and Other Intangible Assets - Intangible Assets Subject to Amortization (Parenthetical) (Detail) (Primus Telecommunications Inc [Member], Customer Relationships [Member], USD $) In Thousands, unless otherwise specified | Sep. 30, 2013
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Primus Telecommunications Inc [Member] | Customer Relationships [Member] |
Finite-Lived Intangible Assets [Line Items] |
Non reflected portion of net book values of customer relationships | $ 400

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- Definition Long-lived assets that are held for sale apart from normal operations and anticipated to be sold in less than one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759 + Details
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Balance Type: | debit
Period Type: | instant

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration