Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Revenue	$ 105,497	$ 100,437
Hardware
Disaggregation of Revenue [Line Items]
Revenue	18,226	26,777
Subscription service
Disaggregation of Revenue [Line Items]
Revenue	38,379	27,965
Professional service
Disaggregation of Revenue [Line Items]
Revenue	13,468	13,842
Restaurant/Retail | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	23,952	33,262
Restaurant/Retail | Over Time
Disaggregation of Revenue [Line Items]
Revenue	46,121	35,322
Restaurant/Retail | Hardware | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	18,226	26,777
Restaurant/Retail | Hardware | Over Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Restaurant/Retail | Subscription service | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Restaurant/Retail | Subscription service | Over Time
Disaggregation of Revenue [Line Items]
Revenue	38,379	27,965
Restaurant/Retail | Professional service | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	5,726	6,485
Restaurant/Retail | Professional service | Over Time
Disaggregation of Revenue [Line Items]
Revenue	7,742	7,357
Restaurant/Retail | Mission systems | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Restaurant/Retail | Mission systems | Over Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Restaurant/Retail | Intelligence, surveillance, and reconnaissance solutions | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Restaurant/Retail | Intelligence, surveillance, and reconnaissance solutions | Over Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Restaurant/Retail | Commercial software | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Restaurant/Retail | Commercial software | Over Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Government | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	234	80
Government | Over Time
Disaggregation of Revenue [Line Items]
Revenue	35,190	31,773
Government | Hardware | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Government | Hardware | Over Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Government | Subscription service | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Government | Subscription service | Over Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Government | Professional service | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Government | Professional service | Over Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Government | Mission systems | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Government | Mission systems | Over Time
Disaggregation of Revenue [Line Items]
Revenue	8,247	9,383
Government | Intelligence, surveillance, and reconnaissance solutions | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	0	0
Government | Intelligence, surveillance, and reconnaissance solutions | Over Time
Disaggregation of Revenue [Line Items]
Revenue	26,756	22,216
Government | Commercial software | Point in Time
Disaggregation of Revenue [Line Items]
Revenue	234	80
Government | Commercial software | Over Time
Disaggregation of Revenue [Line Items]
Revenue	$ 187	$ 174