SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	1 Months Ended	11 Months Ended	12 Months Ended
	Jan. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)
Significant Accounting Policies [Line Items]
Amount exceeded of federally insured limits			$ 78,600,000	$ 61,400,000
Losses, uninsured amount			0
Losses, uninsured amount on foreign bank accounts			0
Impairment charges	$ 0	$ 0	0	0
Advertising costs	100,000	1,700,000	1,200,000	1,800,000
Accrued interest and penalties			0	0
Gains (losses) from foreign currency transactions	$ 11,600	$ (17,000.0)	$ 41,000.0	$ 29,800
Number of reportable segments | segment			1
Minimum
Significant Accounting Policies [Line Items]
Foreign exchange settlement term			1 day
Maximum
Significant Accounting Policies [Line Items]
Number of days recorded upon initiation of wire transfer			5 days
Foreign exchange settlement term			2 days
Agent relationships
Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life			15 years
Trade name
Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life			15 years
Developed technology
Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life			15 years
Other intangibles
Significant Accounting Policies [Line Items]
Intangible assets, estimated useful life			10 years
Computer Equipment
Significant Accounting Policies [Line Items]
Property and equipment, estimated useful life			5 years