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

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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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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Exercise price per share or per unit of warrants or rights outstanding.

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Business Combinations (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Oct. 31, 2018	Oct. 30, 2018	Oct. 01, 2018	Apr. 20, 2018	Jun. 20, 2017	Oct. 14, 2016
Levity [Member]
Business Acquisition [Line Items]
Controlling interest (as a percentage)						57.00%
Total cash purchase price paid						$ 48,350
Noncontrolling interest, right to put (as a percentage)	50.00%
Revenues, net attributable to business acquisitions	$ 134,900
Operating loss attributable to business acquisitions	2,800
Acquisition related costs	7,300
Levity [Member] \| Common Class B [Member]
Business Acquisition [Line Items]
Total cash purchase price paid						35,000
Levity [Member] \| Series L Preferred Stock [Member]
Business Acquisition [Line Items]
Total cash purchase price paid						$ 13,400
RLJE [Member]
Business Acquisition [Line Items]
Warrants received per RLJE investment agreement								20,000,000
Warrant price (in dollars per share)								$ 3.00
Loan balance		$ 68,000
Controlling interest (as a percentage)			17.00%		51.00%
Net gain relating to step-up to fair value	$ 2,600
Total cash purchase price paid			$ 52,200
RLJE [Member] \| Class A [Member]
Business Acquisition [Line Items]
Warrant price (in dollars per share)					$ 3.00		$ 3.00
Common stock of RLJE acquired, number of shares					3,300,000		1,700,000
Cancellation of RLJE Term Loans							$ 5,000
Cancellation of Tranche B Term Loans					$ 10,000
RLJE [Member] \| Class B [Member]
Business Acquisition [Line Items]
Warrant price (in dollars per share)				$ 3.00	$ 3.00
Common stock of RLJE acquired, number of shares				6,600,000	3,400,000
Cancellation of Tranche B Term Loans				$ 19,900	$ 10,100
RLJE [Member] \| Class C [Member]
Business Acquisition [Line Items]
Warrant price (in dollars per share)				$ 3.00
Common stock of RLJE acquired, number of shares				5,000,000.0
Cancellation of Tranche B Term Loans				$ 15,000
RLJE [Member] \| Tranche A Loan [Member]
Business Acquisition [Line Items]
Loan balance		13,000
RLJE [Member] \| Tranche B Loan [Member]
Business Acquisition [Line Items]
Loan balance		$ 55,000