Revenues - Schedule Of Contract Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Current	$ 129,518	$ 117,864
Long-Term	83,150	87,936
Total	212,668	205,800
TASER
Disaggregation of Revenue [Line Items]
Current	26,316	22,578
Long-Term	28,669	32,611
Total	54,985	55,189
Software and Sensors
Disaggregation of Revenue [Line Items]
Current	103,202	95,286
Long-Term	54,481	55,325
Total	157,683	150,611
Warranty
Disaggregation of Revenue [Line Items]
Current	25,022	22,568
Long-Term	18,659	21,534
Total	43,681	44,102
Warranty | TASER
Disaggregation of Revenue [Line Items]
Current	13,162	12,716
Long-Term	14,638	16,378
Total	27,800	29,094
Warranty | Software and Sensors
Disaggregation of Revenue [Line Items]
Current	11,860	9,852
Long-Term	4,021	5,156
Total	15,881	15,008
Hardware
Disaggregation of Revenue [Line Items]
Current	33,168	31,804
Long-Term	50,695	49,227
Total	83,863	81,031
Hardware | TASER
Disaggregation of Revenue [Line Items]
Current	12,626	9,569
Long-Term	13,110	15,468
Total	25,736	25,037
Hardware | Software and Sensors
Disaggregation of Revenue [Line Items]
Current	20,542	22,235
Long-Term	37,585	33,759
Total	58,127	55,994
Software and Sensors
Disaggregation of Revenue [Line Items]
Current	71,328	63,492
Long-Term	13,796	17,175
Total	85,124	80,667
Software and Sensors | TASER
Disaggregation of Revenue [Line Items]
Current	528	293
Long-Term	921	765
Total	1,449	1,058
Software and Sensors | Software and Sensors
Disaggregation of Revenue [Line Items]
Current	70,800	63,199
Long-Term	12,875	16,410
Total	$ 83,675	$ 79,609