Business and Asset Acquisitions - Narrative (Details) shares in Thousands, $ in Thousands						3 Months Ended	9 Months Ended
	May 20, 2021 USD ($)	Mar. 02, 2021 USD ($) location gamingTerminal shares	Dec. 30, 2020 USD ($) gamingTerminal installmentPayment location	Aug. 06, 2020 USD ($) location	Jul. 22, 2020 USD ($)	Sep. 30, 2020 USD ($) location gamingTerminal	Sep. 30, 2021 USD ($) location gamingTerminal	Sep. 30, 2020 USD ($) location gamingTerminal	Dec. 31, 2020 USD ($)
Business Acquisition [Line Items]
Number of video gaming locations | location						2,363	2,549	2,363
Number of video gaming terminals | gamingTerminal						11,597	13,384	11,597
Cash purchase price							$ 3,259	$ 5,611
Goodwill							45,754		$ 45,754
Revenues						$ 138,895		250,196
Net income						$ 6,628		$ 8,514
Illinois Operators Inc
Business Acquisition [Line Items]
Number of video gaming locations | location				13
Asset acquisition, consideration transferred				$ 4,000
Cash payment for asset acquisition				3,700
Asset acquisition, deferred payments				300
Video game terminals and equipment acquired				600
Location contracts acquired				$ 3,400
Century
Business Acquisition [Line Items]
Number of video gaming locations | location		900
Number of video gaming terminals | gamingTerminal		8,500
Consideration transferred		$ 140,000
Shares issued in transaction (in shares) | shares		450
Island
Business Acquisition [Line Items]
Consideration transferred	$ 2,900
Cash purchase price	2,800
Contingent consideration	$ 100
AVG
Business Acquisition [Line Items]
Number of video gaming locations | location			49
Number of video gaming terminals | gamingTerminal			267
Consideration transferred			$ 32,000
Cash purchase price			30,500
Contingent consideration			$ 1,500
Number of installment payments | installmentPayment			2
Goodwill			$ 11,200
Revenues							12,600
Net income							900
AVG | Contingent Consideration, Installment One
Business Acquisition [Line Items]
Location contracts acquired			900
AVG | Contingent Consideration, Installment Two
Business Acquisition [Line Items]
Location contracts acquired			$ 1,400
Tom's Amusements
Business Acquisition [Line Items]
Consideration transferred					$ 3,600
Cash purchase price					2,100
Contingent consideration					1,500
Location contracts acquired					$ 800
Revenues							3,200
Net income							$ (2,800)
Contingent consideration, first installment term					18 months
Contingent consideration, second installment term					24 months
Contingent consideration, installment amount					$ 750
Video game terminals and equipment acquired					1,600
Indefinite-lived intangible assets acquired					1,000
Business combination, cash acquired					$ 200