SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property and Equipment (Details)	12 Months Ended
	Dec. 31, 2015
Building [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	30 years
Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	15 years
Office, Lab Equipment and Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	3 years
Office, Lab Equipment and Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	7 years