Revenues - Summary of Deferred Revenue (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Current	$ 265,591	$ 163,959
Long-Term	185,721	111,222
Total	451,312	275,181	$ 205,800
TASER
Disaggregation of Revenue [Line Items]
Current	36,902	28,945
Long-Term	36,975	32,811
Total	73,877	61,756
Software and Sensors
Disaggregation of Revenue [Line Items]
Current	228,689	135,014
Long-Term	148,746	78,411
Total	377,435	213,425
Warranty
Disaggregation of Revenue [Line Items]
Current	44,432	25,561
Long-Term	22,903	21,978
Total	67,335	47,539
Warranty | TASER
Disaggregation of Revenue [Line Items]
Current	21,257	11,635
Long-Term	4,766	16,953
Total	26,023	28,588
Warranty | Software and Sensors
Disaggregation of Revenue [Line Items]
Current	23,175	13,926
Long-Term	18,137	5,025
Total	41,312	18,951
Hardware
Disaggregation of Revenue [Line Items]
Current	47,806	41,495
Long-Term	109,950	65,285
Total	157,756	106,780
Hardware | TASER
Disaggregation of Revenue [Line Items]
Current	12,944	16,314
Long-Term	28,727	14,304
Total	41,671	30,618
Hardware | Software and Sensors
Disaggregation of Revenue [Line Items]
Current	34,862	25,181
Long-Term	81,223	50,981
Total	116,085	76,162
Software and Sensors.
Disaggregation of Revenue [Line Items]
Current	173,353	96,903
Long-Term	52,868	23,959
Total	226,221	120,862
Software and Sensors. | TASER
Disaggregation of Revenue [Line Items]
Current	2,701	996
Long-Term	3,482	1,554
Total	6,183	2,550
Software and Sensors. | Software and Sensors
Disaggregation of Revenue [Line Items]
Current	170,652	95,907
Long-Term	49,386	22,405
Total	$ 220,038	$ 118,312