Revenues - Revenues By Products And Service Offerings (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	$ 101,215	$ 79,242
TASER X26P
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	16,474	15,668
TASER X2
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	23,932	18,986
TASER Pulse and Bolt
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	1,346	1,022
Single cartridges
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	16,114	16,664
Axon Body
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	5,558	3,446
Axon Flex
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	1,669	1,475
Axon Dock
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	3,035	1,987
Axon Fleet
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	2,116	0
Evidence.com
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	20,241	11,742
TASER Cam
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	1,360	719
Extended warranties
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	6,196	4,261
Other
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	3,174	3,272
TASER Weapons
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	63,524	57,671
TASER Weapons | TASER X26P
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	16,474	15,668
TASER Weapons | TASER X2
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	23,932	18,986
TASER Weapons | TASER Pulse and Bolt
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	1,346	1,022
TASER Weapons | Single cartridges
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	16,114	16,664
TASER Weapons | Axon Body
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	0	0
TASER Weapons | Axon Flex
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	0	0
TASER Weapons | Axon Dock
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	0	0
TASER Weapons | Axon Fleet
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	0	0
TASER Weapons | Evidence.com
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	0	0
TASER Weapons | TASER Cam
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	0	0
TASER Weapons | Extended warranties
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	3,706	2,843
TASER Weapons | Other
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	1,952	2,488
Software and Sensors
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	37,691	21,571
Software and Sensors | TASER X26P
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	0	0
Software and Sensors | TASER X2
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	0	0
Software and Sensors | TASER Pulse and Bolt
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	0	0
Software and Sensors | Single cartridges
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	0	0
Software and Sensors | Axon Body
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	5,558	3,446
Software and Sensors | Axon Flex
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	1,669	1,475
Software and Sensors | Axon Dock
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	3,035	1,987
Software and Sensors | Axon Fleet
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	2,116	0
Software and Sensors | Evidence.com
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	20,241	11,742
Software and Sensors | TASER Cam
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	1,360	719
Software and Sensors | Extended warranties
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	2,490	1,418
Software and Sensors | Other
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	$ 1,222	$ 784