Segment and Related Information - Information of the Company's Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Revenue	$ 355,795	$ 282,876	$ 213,786
Operating Income (Loss) [Abstract]
Operating income (loss)	(58,032)	(53,881)	(23,946)
Other (expense) income, net	(1,224)	(1,279)	808
Loss on extinguishment of debt	0	(11,916)	(8,123)
Interest expense, net	(8,811)	(18,147)	(8,287)
Loss before benefit from income taxes	(68,067)	(85,223)	(39,548)
Depreciation and amortization	28,092	30,146	14,452
Capital expenditures including software costs	7,725	8,287	9,231
Identifiable assets	854,858	888,149
Goodwill	486,762	457,306	41,214
United States
Segment Reporting Information [Line Items]
Revenue	336,201	262,164	195,660
Operating Income (Loss) [Abstract]
Identifiable assets	809,437	871,184
International
Segment Reporting Information [Line Items]
Revenue	19,594	20,712	18,126
Operating Income (Loss) [Abstract]
Identifiable assets	45,421	16,965
Restaurant/Retail
Operating Income (Loss) [Abstract]
Goodwill	486,026	456,570
Government
Operating Income (Loss) [Abstract]
Goodwill	736	736
Operating Segments | Restaurant/Retail
Segment Reporting Information [Line Items]
Revenue	262,347	210,351	142,512
Operating Income (Loss) [Abstract]
Operating income (loss)	(53,516)	(58,262)	(28,089)
Depreciation and amortization	24,056	19,656	8,158
Capital expenditures including software costs	6,530	6,848	7,245
Identifiable assets	722,958	674,032
Goodwill	486,026	456,570
Operating Segments | Government
Segment Reporting Information [Line Items]
Revenue	93,448	72,525	71,274
Operating Income (Loss) [Abstract]
Operating income (loss)	7,527	5,801	5,644
Depreciation and amortization	452	380	590
Capital expenditures including software costs	227	711	1,239
Identifiable assets	21,443	14,831
Goodwill	736	736
Other
Operating Income (Loss) [Abstract]
Operating income (loss)	(12,043)	(1,420)	(1,501)
Depreciation and amortization	3,584	10,110	5,704
Capital expenditures including software costs	968	728	$ 747
Identifiable assets	$ 110,457	$ 199,286