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Amount Borrowed to Finance Business Acquisition

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Contingent consideration gain related to the sale of a business.

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Interest Rate on Advance to Minority Shareholder

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Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

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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.

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

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

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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.

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Fixed interest rate related to the interest rate derivative.

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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.

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Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest.

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

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Acquisitions and Dispositions of Businesses (Acquisitions) (Narrative) (Details) $ in Thousands		1 Months Ended		3 Months Ended		12 Months Ended
	Jan. 31, 2019 USD ($) business	Mar. 31, 2019 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2018 USD ($) business	Aug. 31, 2018	Jul. 31, 2018	Jul. 12, 2018	May 31, 2018
Business Acquisition [Line Items]
Change in redemption value of manditorily redeemable noncontrolling interest				$ (54)
Number of businesses acquired \| business						8
Acqusition purchase price						$ 121,100
Purchase Price Net of Cash				83,721	$ 2,619
Business Acquisition, Transaction Costs					100
Goodwill expected to be deductible for income tax purposes						$ 32,300
Gain (loss) on sales of businesses				189	5,907
Education [Member]
Business Acquisition [Line Items]
Number of businesses acquired \| business						5
Education [Member] \| Professional (U.S.) [Member] \| College for Financial Planning [Member]
Business Acquisition [Line Items]
Percentage of interest acquired									100.00%
Education [Member] \| Professional (U.S.) [Member] \| Professional Publications, Inc. [Member]
Business Acquisition [Line Items]
Percentage of interest acquired										100.00%
Other Businesses [Member]
Business Acquisition [Line Items]
Number of businesses acquired \| business	2					2
Other Businesses [Member] \| Hoover Treated Wood Products [Member]
Business Acquisition [Line Items]
Change in redemption value of manditorily redeemable noncontrolling interest		$ 600
Other Businesses [Member] \| Furnlite Inc [Member] \| Dekko [Member]
Business Acquisition [Line Items]
Percentage of interest acquired								100.00%
Other Businesses [Member] \| Auto dealerships [Member]
Business Acquisition [Line Items]
Percentage of interest acquired	90.00%
Advances to Affiliate	$ 3,500
Interest Rate on Advance to Minority Shareholder	6.00%
Amount Borrowed to Finance Business Acquisition	$ 30,000
Derivative, Fixed Interest Rate	4.70%
Other Businesses [Member] \| Marketplace Strategy [Member] \| SocialCode [Member]
Business Acquisition [Line Items]
Percentage of interest acquired							100.00%
Graham Healthcare Group [Member]
Business Acquisition [Line Items]
Change in redemption value of manditorily redeemable noncontrolling interest			$ 6,200
Number of businesses acquired \| business						1
Kaplan University Transaction [Member] \| Education [Member] \| Higher Education [Member]
Business Acquisition [Line Items]
Gain (loss) on sales of businesses					$ 4,300
Gain Related to Contingent Consideration				$ 200