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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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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, shares in Millions	12 Months Ended
	Dec. 31, 2018	Oct. 31, 2018	Oct. 30, 2018	Oct. 01, 2018	Apr. 20, 2018	Dec. 31, 2017	Jun. 20, 2017	Oct. 14, 2016
Levity [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired					57.00%
Business Acquisition, Transaction Costs					$ 48,350
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	$ 134,900
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	2,800
Business Combination, Acquisition Related Costs	$ 7,300
Noncontrolling Interest, Right to Put	50.00%
Levity [Member] \| Common Class B [Member]
Business Acquisition [Line Items]
Business Acquisition, Transaction Costs					35,000
Levity [Member] \| Series L Preferred Stock [Member]
Business Acquisition [Line Items]
Business Acquisition, Transaction Costs					$ 13,400
RLJE [Member]
Business Acquisition [Line Items]
Warrants Received per RLJE Investment Agreement								20.0
Class of Warrant or Right, Exercise Price of Warrants or Rights								$ 3.00
Debt Instrument, Face Amount						$ 68,000
Business Acquisition, Percentage of Voting Interests Acquired		17.00%		51.00%
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain (Loss), Net	$ 2,600
Business Acquisition, Transaction Costs		$ 52,200
RLJE [Member] \| Class A [Member]
Business Acquisition [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights				$ 3.00			$ 3.00
Common Stock Of RLJE Acquired, Number Of Shares				3.3			1.7
Loan Forgiven in Lieu of Exercise Price for Warrants Exercised							$ 5,000
Cancellation of Tranche B Term Loans				$ 10,000
RLJE [Member] \| Class B [Member]
Business Acquisition [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 3.00	$ 3.00
Common Stock Of RLJE Acquired, Number Of Shares			6.6	3.4
Cancellation of Tranche B Term Loans			$ 19,900	$ 10,100
RLJE [Member] \| Class C [Member]
Business Acquisition [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 3.00
Common Stock Of RLJE Acquired, Number Of Shares			5.0
Cancellation of Tranche B Term Loans			$ 15,000
RLJE [Member] \| Tranche A Loan [Member]
Business Acquisition [Line Items]
Debt Instrument, Face Amount						13,000
RLJE [Member] \| Tranche B Loan [Member]
Business Acquisition [Line Items]
Debt Instrument, Face Amount						$ 55,000