SHAREHOLDERS' EQUITY (Composition of Shares Capital) (Details) - shares	Dec. 31, 2019	Dec. 31, 2018
Stockholders' Equity Note [Abstract]
Share capital, Authorized	500,000,000	500,000,000
Share capital, Issued and outstanding	51,525,919	49,269,626

The maximum number of ordinary and preferred shares permitted to be issued by an entity's charter and bylaws.

No definition available.

Name:	wix_ShareCapitalAuthorized
Namespace Prefix:	wix_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant