Goodwill and Intangible Assets - Schedule of Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($)
Goodwill [Roll Forward]
Balance, beginning of period	$ 25,013
Foreign currency translation adjustments	(1)
Balance, end of period	25,012
TASER
Goodwill [Roll Forward]
Balance, beginning of period	1,354
Balance, end of period	1,354
Software and Sensors
Goodwill [Roll Forward]
Balance, beginning of period	23,659
Foreign currency translation adjustments	(1)
Balance, end of period	$ 23,658