Deferred Revenue - Summary of Deferred Revenue (Detail) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Deferred Revenue Arrangement [Line Items]
Deferred revenue, Current	$ 23,948	$ 20,851
Deferred revenue, Long-Term	31,496	30,190
Total deferred revenue	55,444	51,041
Warranty
Deferred Revenue Arrangement [Line Items]
Deferred revenue, Current	10,338	9,610
Deferred revenue, Long-Term	16,907	16,326
Total deferred revenue	27,245	25,936
Hardware equipment
Deferred Revenue Arrangement [Line Items]
Deferred revenue, Current	3,376	1,738
Deferred revenue, Long-Term	10,872	9,841
Total deferred revenue	14,248	11,579
AXON services
Deferred Revenue Arrangement [Line Items]
Deferred revenue, Current	9,790	9,303
Deferred revenue, Long-Term	3,717	4,023
Total deferred revenue	13,507	13,326
Other
Deferred Revenue Arrangement [Line Items]
Deferred revenue, Current	444	200
Deferred revenue, Long-Term	0	0
Total deferred revenue	444	200
TASER Weapons
Deferred Revenue Arrangement [Line Items]
Deferred revenue, Current	9,432	8,430
Deferred revenue, Long-Term	17,612	16,441
Total deferred revenue	27,044	24,871
TASER Weapons | Warranty
Deferred Revenue Arrangement [Line Items]
Deferred revenue, Current	7,871	7,278
Deferred revenue, Long-Term	14,669	13,982
Total deferred revenue	22,540	21,260
TASER Weapons | Hardware equipment
Deferred Revenue Arrangement [Line Items]
Deferred revenue, Current	1,117	952
Deferred revenue, Long-Term	2,943	2,459
Total deferred revenue	4,060	3,411
Axon
Deferred Revenue Arrangement [Line Items]
Deferred revenue, Current	14,516	12,421
Deferred revenue, Long-Term	13,884	13,749
Total deferred revenue	28,400	26,170
Axon | Warranty
Deferred Revenue Arrangement [Line Items]
Deferred revenue, Current	2,467	2,332
Deferred revenue, Long-Term	2,238	2,344
Total deferred revenue	4,705	4,676
Axon | Hardware equipment
Deferred Revenue Arrangement [Line Items]
Deferred revenue, Current	2,259	786
Deferred revenue, Long-Term	7,929	7,382
Total deferred revenue	$ 10,188	$ 8,168