GOODWILL AND INTANGIBLE ASSETS, Narrative (Details)	12 Months Ended
	Dec. 31, 2019
Trade name
Finite-Lived Intangible Assets [Line Items]
Expected useful life	15 years
Agent relationships
Finite-Lived Intangible Assets [Line Items]
Expected useful life	15 years
Location turnover rate	17.40%
Developed technology
Finite-Lived Intangible Assets [Line Items]
Expected useful life	15 years
Number of development years for state-of-the-art system	20 years
Obsolescence rate	18.00%
Other intangibles
Finite-Lived Intangible Assets [Line Items]
Expected useful life	10 years