Goodwill and Intangible Assets - Definite-Lived Intangible Assets Other than Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Intangible Assets [Line Items]
Gross Carrying Amount	$ 30,733	$ 22,170
Accumulated Amortization	(16,966)	(14,230)
Total	13,767	7,940
Not amortized, Gross Carrying Amount	1,703	1,508
Intangible assets, Gross Carrying Amount	32,436	23,678
Intangible assets, Net Carrying Amount	15,470	9,448
Amortization expense of intangible assets	2,900	3,300	$ 3,500
TASER trademark
Intangible Assets [Line Items]
Not amortized, Gross Carrying Amount	900	900
My90 trademark
Intangible Assets [Line Items]
Not amortized, Gross Carrying Amount	168
Patents and trademarks pending
Intangible Assets [Line Items]
Not amortized, Gross Carrying Amount	635	608
Domain names
Intangible Assets [Line Items]
Gross Carrying Amount	3,043	3,036
Accumulated Amortization	(1,518)	(1,339)
Total	$ 1,525	1,697
Domain names | Minimum
Intangible Assets [Line Items]
Useful Life	5 years
Domain names | Maximum
Intangible Assets [Line Items]
Useful Life	10 years
Issued patents
Intangible Assets [Line Items]
Gross Carrying Amount	$ 3,061	3,232
Accumulated Amortization	(1,457)	(1,567)
Total	$ 1,604	1,665
Issued patents | Minimum
Intangible Assets [Line Items]
Useful Life	5 years
Issued patents | Maximum
Intangible Assets [Line Items]
Useful Life	25 years
Issued trademarks
Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,130	1,002
Accumulated Amortization	(643)	(227)
Total	$ 487	775
Issued trademarks | Minimum
Intangible Assets [Line Items]
Useful Life	3 years
Issued trademarks | Maximum
Intangible Assets [Line Items]
Useful Life	15 years
Customer relationships
Intangible Assets [Line Items]
Gross Carrying Amount	$ 4,985	3,780
Accumulated Amortization	(2,439)	(1,955)
Total	$ 2,546	1,825
Customer relationships | Minimum
Intangible Assets [Line Items]
Useful Life	4 years
Customer relationships | Maximum
Intangible Assets [Line Items]
Useful Life	8 years
Non-compete agreements
Intangible Assets [Line Items]
Gross Carrying Amount	$ 454	460
Accumulated Amortization	(444)	(429)
Total	$ 10	31
Non-compete agreements | Minimum
Intangible Assets [Line Items]
Useful Life	3 years
Non-compete agreements | Maximum
Intangible Assets [Line Items]
Useful Life	4 years
Developed technology
Intangible Assets [Line Items]
Gross Carrying Amount	$ 18,060	10,660
Accumulated Amortization	(10,465)	(8,713)
Total	$ 7,595	$ 1,947
Developed technology | Minimum
Intangible Assets [Line Items]
Useful Life	3 years
Developed technology | Maximum
Intangible Assets [Line Items]
Useful Life	5 years