Revenues - Schedule Of Contract Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Current	$ 186,909	$ 163,959
Long-Term	113,815	111,222
Total	300,724	275,181
TASER
Disaggregation of Revenue [Line Items]
Current	36,075	28,945
Long-Term	31,890	32,811
Total	67,965	61,756
Software and Sensors
Disaggregation of Revenue [Line Items]
Current	150,834	135,014
Long-Term	81,925	78,411
Total	232,759	213,425
Warranty
Disaggregation of Revenue [Line Items]
Current	27,073	25,561
Long-Term	22,430	21,978
Total	49,503	47,539
Warranty | TASER
Disaggregation of Revenue [Line Items]
Current	12,467	11,635
Long-Term	16,937	16,953
Total	29,404	28,588
Warranty | Software and Sensors
Disaggregation of Revenue [Line Items]
Current	14,606	13,926
Long-Term	5,493	5,025
Total	20,099	18,951
Hardware
Disaggregation of Revenue [Line Items]
Current	52,441	41,495
Long-Term	61,579	65,285
Total	114,020	106,780
Hardware | TASER
Disaggregation of Revenue [Line Items]
Current	22,408	16,314
Long-Term	11,498	14,304
Total	33,906	30,618
Hardware | Software and Sensors
Disaggregation of Revenue [Line Items]
Current	30,033	25,181
Long-Term	50,081	50,981
Total	80,114	76,162
Software and Sensors
Disaggregation of Revenue [Line Items]
Current	107,395	96,903
Long-Term	29,806	23,959
Total	137,201	120,862
Software and Sensors | TASER
Disaggregation of Revenue [Line Items]
Current	1,200	996
Long-Term	3,455	1,554
Total	4,655	2,550
Software and Sensors | Software and Sensors
Disaggregation of Revenue [Line Items]
Current	106,195	95,907
Long-Term	26,351	22,405
Total	$ 132,546	$ 118,312