Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2021

Revenue from Contract with Customer [Abstract]

Schedule of Performance Obligations

The activity of outstanding performance obligations as it relates to customer deposits and deferred service revenue is as follows:

(in thousands)	2021		2020
Beginning balance - January 1	$	11,082	$	12,486
Acquired deferred revenue (Note 3)	11,125		—
Recognition of deferred revenue	(15,846)		(9,922)
Deferral of revenue	14,257		8,881
Ending balance - September 30	$	20,618	$	11,445

The value of existing contracts in the Government segment, net of amounts relating to work performed at September 30, 2021, are expected to be recognized as revenue over time as follows (in thousands):

Next 12 months	$	26,310
Months 13-24	71,209
Months 25-36	52,910
Thereafter	41,551
Total	$	191,980

Schedule of Disaggregated Revenue

Disaggregation of revenue is as follows (in thousands):

	Three Months Ended September 30, 2021
	Restaurant/Retail point in time		Restaurant/Retail over time		Government over time
Hardware	$	29,669	$	—	$	—
Software	290		16,878		—
Service	5,150		7,834		—
Mission systems	—		—		9,619
Intelligence, surveillance, and reconnaissance solutions	—		—		8,237
Product	—		—		183
Total	$	35,109	$	24,712	$	18,039

	Three Months Ended September 30, 2020
	Restaurant/Retail point in time		Restaurant/Retail over time		Government over time
Hardware	$	20,149	$	—	$	—
Software	371		6,418		—
Service	3,490		6,919		—
Mission systems	—		—		8,084
Intelligence, surveillance, and reconnaissance solutions	—		—		8,943
Product	—		—		473
Total	$	24,010	$	13,337	$	17,500

The Company has reclassified the prior year information in the above table to conform to the current year presentation; Restaurant/Retail of $37.3 million is presented across hardware, software and service.

	Nine Months Ended September 30, 2021
	Restaurant/Retail point in time		Restaurant/Retail over time		Government over time
Hardware	$	70,858	$	—	$	—
Software	827		39,318		—
Service	14,024		22,502		—
Mission Systems	—		—		28,450
Intelligence, surveillance, and reconnaissance solutions	—		—		24,706
Product	—		—		592
Total	$	85,709	$	61,820	$	53,748

Intelligence, surveillance, and reconnaissance solutions

	Nine Months Ended September 30, 2020
	Restaurant/Retail point in time		Restaurant/Retail over time		Government over time
Hardware	$	50,390	$	—	$	—
Software	1,153		18,547		—
Service	11,006		21,293		—
Mission Systems	—		—		24,620
Intelligence, surveillance, and reconnaissance solutions	—		—		27,457
Product					804
Total	$	62,549	$	39,840	$	52,881