COVER PAGE - $ / shares	9 Months Ended
	Sep. 30, 2020	Nov. 09, 2020	Dec. 31, 2019
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	001-34528
Entity Registrant Name	ZAGG Inc
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-2559624
Entity Address, Address Line One	910 West Legacy Center Way
Entity Address, Address Line Two	Suite 500
Entity Address, City or Town	Midvale
Entity Address, State or Province	UT
Entity Address, Postal Zip Code	84047
City Area Code	801
Local Phone Number	263-0699
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common Stock, $0.001 par value
Common stock, par or stated value per share (in dollars per share)	$ 0.001		$ 0.001
Trading Symbol	ZAGG
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		29,848,506
Amendment Flag	false
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2020
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0001296205