THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Pending Merger with NVIDIA Corporation) (Details) $ / shares in Units, $ in Millions		9 Months Ended
	Mar. 10, 2019 USD ($) extension $ / shares	Sep. 30, 2019 USD ($) $ / shares	Dec. 31, 2018 $ / shares
Business Acquisition [Line Items]
Ordinary shares, par value (in NIS per share) | $ / shares		$ 0.0175	$ 0.0175
NVIDIA Merger
Business Acquisition [Line Items]
Ordinary shares, par value (in NIS per share) | $ / shares	$ 0.0175
Conversion price of shares (in usd per share) | $ / shares	$ 125.00
Number of merger extensions | extension	2
Merger extension period	3 months
Termination fee, due to Parent | $	$ 225.0
Termination fee, due from Parent | $	$ 350.0
Merger related costs | $		$ 11.1