Revenue Recognition - Disaggregated Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 107,134	$ 92,767	$ 308,115	$ 258,145
Restaurant/Retail
Disaggregation of Revenue [Line Items]
Revenue	68,701	68,354	206,814	191,371
Restaurant/Retail | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	30,096	35,619	95,458	97,937
Restaurant/Retail | Over Time
Disaggregation of Revenue [Line Items]
Revenue	38,605	32,734	111,356	93,433
Government
Disaggregation of Revenue [Line Items]
Revenue	38,433	24,413	101,301	66,774
Government | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	190	541	401	753
Government | Over Time
Disaggregation of Revenue [Line Items]
Revenue	38,243	23,873	100,900	66,022
Hardware
Disaggregation of Revenue [Line Items]
Revenue	25,824	31,343	78,991	84,820
Hardware | Restaurant/Retail | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	25,824	31,343	78,991	84,820
Hardware | Restaurant/Retail | Over Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Hardware | Government | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Hardware | Government | Over Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Subscription service
Disaggregation of Revenue [Line Items]
Revenue	31,363	25,170	89,700	69,591
Subscription service | Restaurant/Retail | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Subscription service | Restaurant/Retail | Over Time
Disaggregation of Revenue [Line Items]
Revenue	31,363	25,170	89,700	69,591
Subscription service | Government | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Subscription service | Government | Over Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Professional service
Disaggregation of Revenue [Line Items]
Revenue	11,514	11,840	38,123	36,959
Professional service | Restaurant/Retail | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	4,272	4,276	16,467	13,117
Professional service | Restaurant/Retail | Over Time
Disaggregation of Revenue [Line Items]
Revenue	7,242	7,564	21,656	23,842
Professional service | Government | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Professional service | Government | Over Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Mission systems | Restaurant/Retail | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Mission systems | Restaurant/Retail | Over Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Mission systems | Government | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Mission systems | Government | Over Time
Disaggregation of Revenue [Line Items]
Revenue	8,808	8,982	27,408	26,781
Intelligence, surveillance, and reconnaissance solutions | Restaurant/Retail | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Intelligence, surveillance, and reconnaissance solutions | Restaurant/Retail | Over Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Intelligence, surveillance, and reconnaissance solutions | Government | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Intelligence, surveillance, and reconnaissance solutions | Government | Over Time
Disaggregation of Revenue [Line Items]
Revenue	29,275	14,710	73,000	38,746
Commercial software | Restaurant/Retail | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Commercial software | Restaurant/Retail | Over Time
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Commercial software | Government | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	190	541	401	753
Commercial software | Government | Over Time
Disaggregation of Revenue [Line Items]
Revenue	$ 160	$ 181	$ 492	$ 495