SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands	Apr. 09, 2017	Feb. 14, 2017	Mar. 31, 2017
Subsequent Event [Line Items]
Total minimum lease payments			$ 79,119
Common stock, capital shares reserved for future issuance			8,865,789
Tel Aviv [Member]
Subsequent Event [Line Items]
Total minimum lease payments			$ 53,900
Estimated rental expense			$ 5,400
Tel Aviv [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Operating leases, term of contract (in years)	10 years
Operating leases, renewal term (in years)	10 years
Second Restated Plan [Member]
Subsequent Event [Line Items]
Number of additional shares authorized		1,640,000
Common stock, capital shares reserved for future issuance			2,390,000