MARKETABLE SECURITIES (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Corporate debt securities
Amortized Cost	$ 232,766	$ 159,418
Gross Unrealized Gains	151	34
Gross Unrealized Losses	0	(255)
Fair Value	232,917	159,197
Equity security
Amortized Cost	97	98
Gross Unrealized Gains	509	1,353
Gross Unrealized Losses	0	0
Fair Value	606	1,451
Total marketable securities
Amortized Cost	232,863	159,516
Gross Unrealized Gains	660	1,387
Gross Unrealized Losses	0	(255)
Fair Value	$ 233,523	$ 160,648

Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt securities classified as available-for-sale.

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