SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 4) (CuraGen, 4% convertible subordinated debt, USD $)	1 Months Ended		12 Months Ended
	Feb. 28, 2011	Oct. 31, 2009	Dec. 31, 2011	Dec. 31, 2010
CuraGen | 4% convertible subordinated debt
Acquisition of CuraGen Corporation
Convertible subordinate debt		$ 12,500,000
Interest rate (as a percent)		4.00%
Number of shares of common stock into which debt was convertible		353,563
Rate at which debt was converted into shares of common stock (in shares)		28.27823
Principal amount of notes used for debt instrument conversion ratio		1,000
Conversion price (in dollars per share)		$ 35.36
Interest expense on debt			200,000	1,200,000
Payment of outstanding principal and accrued interest	$ 12,800,000