Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues
Total revenues		$ 67,277	$ 49,284	$ 189,473	$ 120,385
Operating expenses
Selling, general and administrative		15,913	10,862	44,821	31,111
Research and development		9,269	6,180	26,338	19,342
Write-downs and other charges		197	1,932	985	2,806
Depreciation and amortization		18,441	20,463	55,460	66,353
Total operating expenses		60,266	51,686	171,619	156,719
Income (loss) from operations		7,011	(2,402)	17,854	(36,334)
Other expense (income)
Interest expense		10,700	11,330	33,198	30,566
Interest income		(263)	(671)	(827)	(843)
Loss on extinguishment and modification of debt		0	0	0	3,102
Other expense (income)		1,126	(311)	1,092	3,993
(Loss) income before income taxes		(4,552)	(12,750)	(15,609)	(73,152)
Income tax benefit (expense)		2,723	1,672	2,127	5,016
Net (loss) income		(1,829)	(11,078)	(13,482)	(68,136)
Foreign currency translation adjustment		(1,612)	1,375	(1,588)	(6,234)
Total comprehensive (loss) income		$ (3,441)	$ (9,703)	$ (15,070)	$ (74,370)
Basic and diluted loss per common share:
Basic (in dollars per share)		$ (0.05)	$ (0.31)	$ (0.37)	$ (1.91)
Diluted (in dollars per share)		$ (0.05)	$ (0.31)	$ (0.37)	$ (1.91)
Weighted average common shares outstanding:
Basic (in shares)		36,725	35,647	36,608	35,598
Diluted (in shares)		36,725	35,647	36,608	35,598
Gaming Operations [Member]
Revenues
Total revenues		$ 53,231	$ 36,299	$ 152,686	$ 89,173
Operating expenses
Cost of goods and services sold	[1]	9,641	8,268	27,994	23,756
Equipment Sales [Member]
Revenues
Total revenues		14,046	12,985	36,787	31,212
Operating expenses
Cost of goods and services sold	[1]	$ 6,805	$ 3,981	$ 16,021	$ 13,351

[1] exclusive of depreciation and amortization