Segment and Related Information - Segment Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) reporting_unit	Sep. 30, 2022 USD ($)
Segment and Related Information [Abstract]
Number of operating segments (in reporting units) | reporting_unit			2
Number of reportable segments (in reporting units) | reporting_unit			2
Information as to the Company's segments [Abstract]
Revenues:	$ 107,134	$ 92,767	$ 308,115	$ 258,145
Operating (loss) income:	(13,187)	(18,443)	(44,704)	(47,351)
Other expense, net	(373)	(179)	(337)	(804)
Interest expense, net	(1,750)	(2,140)	(5,152)	(7,054)
Loss before provision for income taxes	(15,310)	(20,762)	(50,193)	(55,209)
Depreciation, amortization and accretion:	7,206	7,271	22,074	21,110
Capital expenditures including software costs:	2,943	1,633	8,951	5,531
United States
Information as to the Company's segments [Abstract]
Revenues:	100,712	88,555	291,524	243,406
International
Information as to the Company's segments [Abstract]
Revenues:	6,422	4,212	16,591	14,739
Restaurant/Retail
Information as to the Company's segments [Abstract]
Revenues:	68,701	68,354	206,814	191,371
Operating (loss) income:	(16,173)	(20,972)	(51,301)	(53,741)
Depreciation, amortization and accretion:	7,090	7,159	21,727	20,770
Capital expenditures including software costs:	2,787	1,600	8,581	5,442
Government
Information as to the Company's segments [Abstract]
Revenues:	38,433	24,413	101,301	66,774
Operating (loss) income:	2,986	2,529	6,597	6,390
Depreciation, amortization and accretion:	116	112	347	340
Capital expenditures including software costs:	$ 156	$ 33	$ 370	$ 89