SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Depreciation and Amortization) (Details)	12 Months Ended
	Dec. 31, 2019
Acquired Intangibles | Minimum
Property, Plant and Equipment [Line Items]
Useful lives (in years)	7 years
Acquired Intangibles | Maximum
Property, Plant and Equipment [Line Items]
Useful lives (in years)	25 years
Contractual Rights to Earn Future Fee Income [Member] | Minimum
Property, Plant and Equipment [Line Items]
Useful lives (in years)	7 years
Contractual Rights to Earn Future Fee Income [Member] | Maximum
Property, Plant and Equipment [Line Items]
Useful lives (in years)	25 years
Furniture, equipment and capitalized software | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	3 years
Furniture, equipment and capitalized software | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful life (in years)	5 years