PREMISES AND EQUIPMENT, NET - Summary by Country (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total	$ 18,661	$ 24,526
United States
Property, Plant and Equipment [Line Items]
Total	9,779	13,426
Luxembourg
Property, Plant and Equipment [Line Items]
Total	7,660	10,295
India
Property, Plant and Equipment [Line Items]
Total	1,030	671
Uruguay
Property, Plant and Equipment [Line Items]
Total	115	39
Philippines
Property, Plant and Equipment [Line Items]
Total	$ 77	$ 95