Commitments and Contigencies - Additional Information (Details) - officer	6 Months Ended
	Jun. 30, 2018	Aug. 16, 2005
Product Warranty Liability [Line Items]
Number of former officers being sued		2
Mobile Computers
Product Warranty Liability [Line Items]
Product warranty period	1 year
Printers
Product Warranty Liability [Line Items]
Product warranty period	1 year
Batteries
Product Warranty Liability [Line Items]
Product warranty period	1 year
Thermal Printheads
Product Warranty Liability [Line Items]
Product warranty period	6 months
Battery-Based Products
Product Warranty Liability [Line Items]
Product warranty period	90 days
Minimum | Advanced Data Capture Products
Product Warranty Liability [Line Items]
Product warranty period	1 year
Maximum | Advanced Data Capture Products
Product Warranty Liability [Line Items]
Product warranty period	5 years