Acquisitions (Schedule Of Recognized Identified Assets Acquired And Liabilities Assumed) (Details) (Oi. S. A. Acquisitions [Member], USD $) In Thousands, unless otherwise specified	Dec. 01, 2014	Mar. 31, 2014
Oi. S. A. Acquisitions [Member]
Business Acquisition [Line Items]
Property and equipment	$ 62,957	$ 103,586
Intangible assets	400,205	570,312
Net assets acquired	$ 463,162	$ 673,898

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Amount of assets acquired at the acquisition date.

+ References

+ Details

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- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 55

-Paragraph 37

-URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464

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