Cover - shares	9 Months Ended
	Sep. 30, 2019	Nov. 01, 2019
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2019
Document Transition Report	false
Entity File Number	001-33299
Entity Registrant Name	MELLANOX TECHNOLOGIES, LTD.
Entity Incorporation, State or Country Code	L3
Entity Tax Identification Number	98-0233400
Entity Address, Address Line One	Beit Mellanox
Entity Address, City or Town	Yokneam
Entity Address, Country	IL
Entity Address, Postal Zip Code	20692
City Area Code	972-4
Local Phone Number	909-7200
Title of 12(b) Security	Ordinary Shares, nominal value NIS 0.0175 per share
Trading Symbol	MLNX
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		55,499,903
Entity Central Index Key	0001356104
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3