Subsequent Events (Details) - Forecast [Member] $ in Millions	6 Months Ended
Sep. 30, 2016 USD ($)
Subsequent Event [Line Items]
Ownership percentage retained	51.00%
Expected Proceeds From Divestiture Of Businesses And Interests In Affiliates	$ 168.0
ATV Joint Venture [Member] \| Verizon [Member]
Subsequent Event [Line Items]
Interest acquired	24.50%
Purchase price	$ 159.0
ATV Joint Venture [Member] \| Hearst Corporation [Member]
Subsequent Event [Line Items]
Interest acquired	24.50%

Business Combination, Purchase Agreement, Consideration Transferred

No definition available.

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- Definition

Expected Proceeds From Divestiture Of Businesses And Interests In Affiliates

+ References

No definition available.

+ Details

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

+ Details

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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