Commitments and Contingencies - Additional Information (Detail) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2016 USD ($) Case	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2016 Lawsuit	Dec. 31, 2016 Case	Sep. 30, 2011 Case
Loss Contingencies [Line Items]
Rent expense under operating lease		$ 1.8	$ 1.0	$ 0.9
Open purchase order	$ 46.0	46.0
Number of active lawsuits against Company					8	8	55
Cases that were dismissed or judgment entered | Case	4
Severance costs		0.6
Letters of credit outstanding amount	$ 2.7	2.7
Surety Bond
Loss Contingencies [Line Items]
Bonds outstanding	5.7	5.7
Expiring May 2017 | Surety Bond
Loss Contingencies [Line Items]
Letters of credit outstanding amount	2.7	2.7
Expiring in 2018 | Surety Bond
Loss Contingencies [Line Items]
Bonds outstanding	0.4	0.4
Expiring in 2020 | Surety Bond
Loss Contingencies [Line Items]
Bonds outstanding	2.4	2.4
Expiring in 2021 and thereafter | Surety Bond
Loss Contingencies [Line Items]
Outstanding surety bonds expected to be released during period	2.9	2.9
Antoine di Zazzo vs. TASER International, Inc. | Pending Litigation
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss	0.6	$ 0.6
Minimum
Loss Contingencies [Line Items]
Operating leases, term (ranging from less than one year)		1 year
Amount payable on termination of contract	0.7	$ 0.7
Maximum
Loss Contingencies [Line Items]
Operating leases, term (ranging from less than one year)		6 years
Amount payable on termination of contract	$ 1.3	$ 1.3