CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES (Details 4) (Level 3, Contingent consideration, USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Changes in fair value of all financial liabilities measured at fair value on a recurring basis
Balance at the beginning of the period			$ 14,804
Unfavorable contract assumed	3,835		3,835		3,540
Change in fair value			295
Net accretion value adjustments	600	100	1,226	200
Balance at the end of the period	16,030		16,030
Zipsor
Changes in fair value of all financial liabilities measured at fair value on a recurring basis
Balance at the beginning of the period			1,638
Net accretion value adjustments			70
Balance at the end of the period	1,708		1,708
Lazanda
Changes in fair value of all financial liabilities measured at fair value on a recurring basis
Balance at the beginning of the period			8,616
Net accretion value adjustments			775
Balance at the end of the period	9,391		9,391
CAMBIA
Changes in fair value of all financial liabilities measured at fair value on a recurring basis
Balance at the beginning of the period			1,010
Net accretion value adjustments			86
Balance at the end of the period	$ 1,096		$ 1,096