Business and Asset Acquisitions - Schedule of Consideration Payable (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Current	$ 3,272	$ 10,293	$ 2,556
Long-Term	16,541	16,426	9,020
TAV Gaming
Business Acquisition [Line Items]
Current	494	490	194
Long-Term	3,546	3,497	1,232
Abraham
Business Acquisition [Line Items]
Current	26	55	207
Long-Term	0	0	0
Fair Share Gaming
Business Acquisition [Line Items]
Current	1,221	1,057	1,027
Long-Term	474	899	0
Family Amusement
Business Acquisition [Line Items]
Current	395	293	357
Long-Term	2,787	2,815	3,011
Skyhigh
Business Acquisition [Line Items]
Current	762	763	550
Long-Term	4,212	3,948	3,971
G3
Business Acquisition [Line Items]
Current	294	2,952	221
Long-Term	99	154	806
Grand River
Business Acquisition [Line Items]
Current	0	2,304	0
Long-Term	5,423	5,113	0
IGS
Business Acquisition [Line Items]
Current	80	2,379	0
Long-Term	$ 0	$ 0	$ 0

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Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled within one year or the normal operating cycle, if longer.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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