Segment Data - Additional Information (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) Segment	Jun. 30, 2015 USD ($)
Segment Reporting [Abstract]
Number of reportable segments of company | Segment			2
Segment Reporting Information [Line Items]
Product sales	$ 53,867	$ 43,755	$ 104,542	$ 86,598
Service revenue	4,889	2,958	9,744	4,877
Net sales	58,756	46,713	114,286	91,475
Cost of products sold	20,054	14,994	37,509	29,223
Cost of services delivered	1,403	996	2,576	1,661
Gross margin	37,299	30,723	74,201	60,591
Sales, general and administrative	24,379	15,443	49,212	30,008
Research and development	6,710	5,906	13,637	10,464
Income from operations	6,210	9,374	11,352	20,119
Purchase of property and equipment	684	1,346	1,964	1,770
Purchase of intangible assets	87	151	185	201
Purchase of property and equipment and intangible assets in connection with business acquisition	0	9,694	0	9,694
Depreciation and amortization	942	745	1,843	1,362
Operating Segments | TASER Weapons
Segment Reporting Information [Line Items]
Product sales	45,536	37,825	91,370	76,166
Service revenue	0	0	0	0
Net sales	45,536	37,825	91,370	76,166
Cost of products sold	14,489	11,278	28,566	22,359
Cost of services delivered	0	0	0	0
Gross margin	31,047	26,547	62,804	53,807
Sales, general and administrative	14,684	10,823	29,956	21,528
Research and development	1,245	1,077	2,365	2,267
Income from operations	15,118	14,647	30,483	30,012
Purchase of property and equipment	594	188	1,665	535
Purchase of intangible assets	51	35	113	81
Purchase of property and equipment and intangible assets in connection with business acquisition	0	0	0	0
Depreciation and amortization	560	556	1,132	1,086
Operating Segments | Axon
Segment Reporting Information [Line Items]
Product sales	8,331	5,930	13,172	10,432
Service revenue	4,889	2,958	9,744	4,877
Net sales	13,220	8,888	22,916	15,309
Cost of products sold	5,565	3,716	8,943	6,864
Cost of services delivered	1,403	996	2,576	1,661
Gross margin	6,252	4,176	11,397	6,784
Sales, general and administrative	9,695	4,620	19,256	8,480
Research and development	5,465	4,829	11,272	8,197
Income from operations	(8,908)	(5,273)	(19,131)	(9,893)
Purchase of property and equipment	90	1,158	299	1,235
Purchase of intangible assets	36	116	72	120
Purchase of property and equipment and intangible assets in connection with business acquisition	0	9,694	0	9,694
Depreciation and amortization	$ 382	$ 189	$ 711	$ 276