Segment and Related Information - Information of the Company's Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Revenue	$ 282,876	$ 213,786	$ 187,232
Operating Income (Loss) [Abstract]
Operating income (loss)	(53,881)	(23,946)	(14,185)
Other (expense) income, net	(1,279)	808	(449)
Loss on extinguishment of debt	(11,916)	(8,123)	0
Interest expense, net	(18,147)	(8,287)	(4,571)
Loss before benefit from income taxes	(85,223)	(39,548)	(19,205)
Depreciation and amortization	30,146	14,452	7,255
Capital expenditures including software costs	8,287	9,231	6,530
Identifiable assets	888,149	343,749
Goodwill	457,306	41,214	41,386
Operating Segments | Restaurant/Retail
Segment Reporting Information [Line Items]
Revenue	210,351	142,512	123,307
Operating Income (Loss) [Abstract]
Operating income (loss)	(58,262)	(28,089)	(18,481)
Depreciation and amortization	19,656	8,158	3,858
Capital expenditures including software costs	6,848	7,245	4,394
Identifiable assets	674,032	140,606
Goodwill	456,570	40,478
Operating Segments | Government
Segment Reporting Information [Line Items]
Revenue	72,525	71,274	63,925
Operating Income (Loss) [Abstract]
Operating income (loss)	5,801	5,644	5,463
Depreciation and amortization	380	590	67
Capital expenditures including software costs	711	1,239	258
Identifiable assets	14,831	13,150
Goodwill	736	736
Other
Operating Income (Loss) [Abstract]
Operating income (loss)	(1,420)	(1,501)	(1,167)
Depreciation and amortization	10,110	5,704	3,330
Capital expenditures including software costs	728	747	$ 1,878
Identifiable assets	$ 199,286	$ 189,993