Revenues - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Unbilled accounts receivable	$ 18,600
Payment due date from date of invoice	30 days
Net sales	$ 681,003	$ 530,860	$ 420,068
Taser 60 Plan
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net sales	34,000	39,300	48,200
Interest income	1,500	1,600	$ 1,300
Sales, general and administrative expenses
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Amortization related to deferred commissions	$ 11,300	$ 8,200