The number of television stations included in agreement to acquire.

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- Definition

The number of business lines.

+ References

No definition available.

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- Definition

The payments to be paid to acquire businesses per agreement.

+ References

No definition available.

+ Details

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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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- 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=65885119&loc=d3e1392-128463

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- Definition

The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (d)
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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 30
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- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 2
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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 2
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- Definition

The number of businesses acquired by the entity during the period.

+ References

No definition available.

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Acquisitions and Dispositions of Businesses (Acquisitions) (Narrative) (Details)	1 Months Ended	3 Months Ended	6 Months Ended
	May 31, 2016 USD ($) TelevisionStation	Jun. 30, 2016 USD ($)	Jun. 30, 2016 USD ($) business	Jun. 30, 2015 business	Feb. 29, 2016	Jan. 31, 2016	Dec. 22, 2015	Nov. 13, 2015 business
Business Acquisition [Line Items]
Number of businesses acquired \| business			3	0
Acqusition purchase price			$ 208,700,000
Revenues of acquired companies since acquisition date		$ 13,900,000	25,300,000
Operating income of acquired companies since acquisition date		5,100,000	$ 8,900,000
Education [Member]
Business Acquisition [Line Items]
Number of businesses acquired \| business			3
Television Broadcasting [Member]
Business Acquisition [Line Items]
Number of television stations included in agreement to acquire \| TelevisionStation	2
Payments to acquire businesses per agreement	$ 60,000,000
Mander Portman Woodward [Member] \| Education [Member]
Business Acquisition [Line Items]
Percentage of interest acquired						100.00%
Osborne Books [Member] \| Education [Member]
Business Acquisition [Line Items]
Percentage of interest acquired					100.00%
Group Dekko [Member]
Business Acquisition [Line Items]
Percentage of interest acquired								100.00%
Number of Business Lines \| business								3
SmartPros [Member] \| Education [Member]
Business Acquisition [Line Items]
Percentage of interest acquired							100.00%
2016 Acquisitions [Member]
Business Acquisition [Line Items]
Goodwill expected to be deductible for income tax purposes		$ 0	$ 0