Segment Data (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments of company | segment	2
Net sales	$ 681,003	$ 530,860	$ 420,068
Cost of sales	264,672	223,574	161,485
Gross margin	416,331	307,286	258,583
Research and development	123,195	100,721	76,856
TASER Weapons
Segment Reporting Information [Line Items]
Net sales	366,552	281,661	253,115
Cost of sales	136,925	107,188	80,354
Gross margin	229,627	174,473	172,761
Research and development	15,380	14,469	17,012
Software and Sensors
Segment Reporting Information [Line Items]
Net sales	314,451	249,199	166,953
Cost of sales	127,747	116,386	81,131
Gross margin	186,704	132,813	85,822
Research and development	107,815	86,252	59,844
Product
Segment Reporting Information [Line Items]
Net sales	500,250	399,474	327,635
Cost of sales	224,131	190,683	139,337
Product | TASER Weapons
Segment Reporting Information [Line Items]
Net sales	362,649	280,554	253,115
Cost of sales	136,925	107,188	80,354
Product | Software and Sensors
Segment Reporting Information [Line Items]
Net sales	137,601	118,920	74,520
Cost of sales	87,206	83,495	58,983
Service
Segment Reporting Information [Line Items]
Net sales	180,753	131,386	92,433
Cost of sales	40,541	32,891	22,148
Service | TASER Weapons
Segment Reporting Information [Line Items]
Net sales	3,903	1,107
Service | Software and Sensors
Segment Reporting Information [Line Items]
Net sales	176,850	130,279	92,433
Cost of sales	$ 40,541	$ 32,891	$ 22,148