Preparation Of Interim Financial Statements (Narrative) (Details) - Customer Fulfillment Costs [Member]		3 Months Ended
Apr. 01, 2016	Jun. 30, 2016
Change in Accounting Estimate [Line Items]
Estimated economic useful life	4 years 6 months
Change in Accounting Estimate, Description	To better reflect the estimated economic lives of satellite and certain business customer relationships, we extended the period to approximately 4.5 years.
Net Income [Member]
Change in Accounting Estimate [Line Items]
Change in Accounting Estimate, Financial Effect		82
Earnings Per Share, Diluted [Member]
Change in Accounting Estimate [Line Items]
Change in Accounting Estimate, Financial Effect		0.01

A revision in the estimated economic useful life of an asset asset (the period of time over which the asset is projected to benefit operations) in 'PnYnMnDTnHnMnS'. Excluding intangible assets and long-lived tangible assets, otherwise specified.

No definition available.

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Balance Type:	na
Period Type:	duration

- Definition

Describes the specific accounting estimate that was revised, including the nature of and justification for the revision.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=51655806&loc=d3e777-108305

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=56949863&loc=d3e22595-107794

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- Definition

Disclosure of the effect on income from continuing operations, net income (or other appropriate captions of changes in applicable net assets or performance indicator), and any related per-share amounts of the current period when a change in accounting estimate affects several future periods.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=56949863&loc=d3e22595-107794

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=51655806&loc=d3e777-108305

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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