Contingent consideration gain related to the sale of a business.

No definition available.

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

[Line Items] for Schedule of Non-Operating Income (Expense) [Table]

+ References

No definition available.

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- Definition

Amount of gain (loss) on sale or disposal of an equity method investment.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(b)(7)(c))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(b)(9)(a))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

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- Definition

Amount of gain from upward price adjustment on investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=116654751&loc=SL75117539-209714

+ Details

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- Definition

Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

+ References

+ Details

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Other Non-Operating Income (Narrative) (Details) $ in Thousands	3 Months Ended				9 Months Ended
	Sep. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Sep. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($) business
Schedule of Non-Operating Income (Expense) [Line Items]
Gain on cost method investments	$ 3,669	$ 1,300	$ 8,487		$ 5,080	$ 8,487
Gain on sale of equity affiliate	0		0		28,994	0
Gain on sales of businesses	486		916		907	8,157
Education [Member]
Schedule of Non-Operating Income (Expense) [Line Items]
Gain on sales of businesses						$ 8,200
Number of businesses disposed \| business						3
Gimlet Media [Member]
Schedule of Non-Operating Income (Expense) [Line Items]
Gain on sale of equity affiliate		$ 29,000
Higher Education [Member] \| Education [Member] \| Kaplan University Transaction [Member]
Schedule of Non-Operating Income (Expense) [Line Items]
Gain on sales of businesses				$ 4,300		$ 4,300
Gain Related to Contingent Consideration	$ 500		$ 500		$ 900	$ 1,900