Business and Asset Acquisitions - Schedule of Consideration Payable (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Current	$ 3,346	$ 10,293
Long-Term	17,871	16,426
TAV
Business Acquisition [Line Items]
Current	490	490
Long-Term	3,249	3,497
Abraham
Business Acquisition [Line Items]
Current	0	55
Long-Term	0	0
Fair Share Gaming
Business Acquisition [Line Items]
Current	1,258	1,057
Long-Term	601	899
Family Amusement
Business Acquisition [Line Items]
Current	391	293
Long-Term	2,576	2,815
Skyhigh
Business Acquisition [Line Items]
Current	532	763
Long-Term	4,272	3,948
G3
Business Acquisition [Line Items]
Current	295	2,952
Long-Term	141	154
Grand River
Business Acquisition [Line Items]
Current	0	2,304
Long-Term	5,587	5,113
IGS
Business Acquisition [Line Items]
Current	80	2,379
Long-Term	0	0
Illinois Operators
Business Acquisition [Line Items]
Current	300	0
Long-Term	0	0
Tom's Amusements
Business Acquisition [Line Items]
Current	0	0
Long-Term	$ 1,445	$ 0