Deferred Revenue - Summary of Deferred Revenue (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred Revenue Arrangement [Line Items]
Current portion of deferred revenue	$ 20,851	$ 14,020
Long-term portion of deferred revenue	30,190	21,668
Total deferred revenue	51,041	35,688
Warranty
Deferred Revenue Arrangement [Line Items]
Current portion of deferred revenue	9,610	7,270
Long-term portion of deferred revenue	16,326	14,703
Total deferred revenue	25,936	21,973
Hardware Equipment
Deferred Revenue Arrangement [Line Items]
Current portion of deferred revenue	1,738	856
Long-term portion of deferred revenue	9,841	3,396
Total deferred revenue	11,579	4,252
AXON services
Deferred Revenue Arrangement [Line Items]
Current portion of deferred revenue	9,303	5,717
Long-term portion of deferred revenue	4,023	3,569
Total deferred revenue	13,326	9,286
Other
Deferred Revenue Arrangement [Line Items]
Current portion of deferred revenue	200	177
Long-term portion of deferred revenue	0	0
Total deferred revenue	200	177
TASER Weapons | Warranty
Deferred Revenue Arrangement [Line Items]
Current portion of deferred revenue	7,278	6,591
Long-term portion of deferred revenue	13,982	13,809
Total deferred revenue	21,260	20,400
TASER Weapons | Hardware Equipment
Deferred Revenue Arrangement [Line Items]
Current portion of deferred revenue	952	365
Long-term portion of deferred revenue	2,459	753
Total deferred revenue	3,411	1,118
Axon
Deferred Revenue Arrangement [Line Items]
Current portion of deferred revenue	12,421	6,887
Long-term portion of deferred revenue	13,749	7,106
Total deferred revenue	26,170	13,993
Axon | Warranty
Deferred Revenue Arrangement [Line Items]
Current portion of deferred revenue	2,332	679
Long-term portion of deferred revenue	2,344	894
Total deferred revenue	4,676	1,573
Axon | Hardware Equipment
Deferred Revenue Arrangement [Line Items]
Current portion of deferred revenue	786	491
Long-term portion of deferred revenue	7,382	2,643
Total deferred revenue	8,168	3,134
TASER Weapons and other
Deferred Revenue Arrangement [Line Items]
Current portion of deferred revenue	8,430	7,133
Long-term portion of deferred revenue	16,441	14,562
Total deferred revenue	$ 24,871	$ 21,695