FAIR VALUE MEASUREMENTS (Details 2)	9 Months Ended
	Sep. 30, 2015 USD ($)
Roll forward of the fair value of the Company's investments whose fair value was determined using Level 3 inputs
Transfers between the levels	$ 0
Acquisition of Level 3 securities	57,600,000
Balance at the end of the period	62,981,000
Fair Value Of Contingent Consideration
Roll forward of the fair value of the Company's investments whose fair value was determined using Level 3 inputs
Increase in fair value	2,700,000
Other income (expense)
Roll forward of the fair value of the Company's investments whose fair value was determined using Level 3 inputs
Increase in fair value	558,000
Warrant
Roll forward of the fair value of the Company's investments whose fair value was determined using Level 3 inputs
Acquisition of Level 3 securities	$ 2,123,000