Segment and Related Information - Summary of Segment Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($) reporting_unit	Mar. 31, 2021 USD ($)
Segment and Related Information [Abstract]
Number of operating segments | reporting_unit	2
Number of reportable segments | reporting_unit	2
Information as to the Company's segments [Abstract]
Revenue	$ 80,285	$ 54,467
Operating loss	(12,809)	(6,021)
Other expense, net	(368)	(51)
Interest expense, net	(2,463)	(2,160)
Net loss	(15,640)	(8,232)
Depreciation and amortization	6,886	3,990
Capital expenditures including software costs	1,848	1,669
United States
Information as to the Company's segments [Abstract]
Revenue	75,593	50,603
International
Information as to the Company's segments [Abstract]
Revenue	4,692	3,864
Other
Information as to the Company's segments [Abstract]
Operating loss	(9,175)	2,074
Depreciation and amortization	867	1,525
Capital expenditures including software costs	257	0
Restaurant/Retail
Information as to the Company's segments [Abstract]
Revenue	58,846	36,584
Restaurant/Retail | Operating segments
Information as to the Company's segments [Abstract]
Operating loss	(5,181)	(9,285)
Depreciation and amortization	5,910	2,429
Capital expenditures including software costs	1,547	1,517
Government
Information as to the Company's segments [Abstract]
Revenue	21,439	17,883
Government | Operating segments
Information as to the Company's segments [Abstract]
Operating loss	1,547	1,190
Depreciation and amortization	109	36
Capital expenditures including software costs	$ 44	$ 152