Restatement of Previously Issued Financial Statements - Income Statement (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2020	Sep. 30, 2020	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net revenues	$ 135,097		$ 106,463	$ 106,843		$ 316,352		$ 428,696		$ 335,081
Cost of revenue (exclusive of depreciation and amortization expense shown below)	90,556	$ 530	70,708	71,239		211,086		282,008		217,457
General and administrative	23,164	9,921	21,975	31,896		77,420		69,330		54,295
Total operating expenses	126,113		104,320	128,539		341,031		415,360		310,212
(Gain)/loss on change in fair value of contingent earnout shares	3,599	7,174	(17,406)	(10,232)	$ (6,633)	(8,484)		9,837		0
(Loss) income before income tax (benefit) expense	1,951	(33,503)	15,301	(18,202)	(16,252)	(29,902)		(10,502)		15,225
Net (loss) income	$ 8,544	$ (28,448)	$ 15,440	$ (13,008)	$ (4,464)	$ (12,984)		$ (15,701)		$ 10,803
Earnings per share - basic (in usd per share)	$ 0.10	$ (0.36)	$ 0.20	$ (0.17)	$ (0.06)	$ (0.16)	[1]	$ (0.25)	[1]	$ 0.19	[1]
Earnings per share - diluted (in usd per share)	$ 0.10	$ (0.36)	$ 0.20	$ (0.17)	$ (0.06)	$ (0.16)	[1]	$ (0.25)	[1]	$ 0.17	[1]
Amusement
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net revenues	$ 3,031		$ 2,831	$ 3,091		$ 9,247		$ 9,749		$ 7,001
ATM fees and other revenue
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net revenues	2,431		2,057	2,177		$ 6,585		8,311		$ 6,369
Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net revenues	136,332		105,228	105,607				424,385
Cost of revenue (exclusive of depreciation and amortization expense shown below)	91,792	$ 0	67,980	67,980				271,999
General and administrative	23,164	10,451	23,468	33,919				75,028
Total operating expenses	127,348		103,084	127,303				411,049
(Gain)/loss on change in fair value of contingent earnout shares	0	0	0	0	$ 0			0
(Loss) income before income tax (benefit) expense	5,550	(26,329)	(2,105)	(28,434)	(22,885)			(665)
Net (loss) income	$ 12,143	$ (21,274)	$ (1,966)	$ (23,240)	$ (11,097)			$ (5,864)
Earnings per share - basic (in usd per share)	$ 0.15	$ (0.27)	$ (0.03)	$ (0.30)	$ (0.14)			$ (0.09)
Earnings per share - diluted (in usd per share)	$ 0.14	$ (0.27)	$ (0.03)	$ (0.30)	$ (0.14)			$ (0.09)
Previously Reported | Amusement
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net revenues	$ 4,171		$ 1,692	$ 1,952				$ 5,912
Previously Reported | ATM fees and other revenue
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net revenues	$ 2,526		$ 1,961	$ 2,080				$ 7,837

[1] Per share and share amounts for 2018 have been retroactively restated to give effect to the reverse recapitalization that is discussed in Note 3.