FINTECH MERGER AND STELLA POINT ACQUISITION, Narrative (Details) - USD ($)			1 Months Ended	11 Months Ended	12 Months Ended
	Jul. 26, 2018	Feb. 01, 2017	Jan. 31, 2017	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	May 31, 2019
Business Acquisition [Line Items]
Cash consideration to Intermex shareholders	$ 101,659,000		$ 0	$ 0		$ 101,659,000
Common shares, outstanding (in shares)	36,200,000				38,034,389	36,182,783	38,000,000.0
Warrants to purchase common stock (in shares)	9,000,000
Transaction cost			$ 3,917,000	8,706,000	$ 0	$ 10,319,000
2018 Equity Compensation Plan
Business Acquisition [Line Items]
Shares reserved for issuance (in shares)	3,400,000				3,300,000
Intermex
Business Acquisition [Line Items]
Cash consideration to Intermex shareholders	$ 101,659,000
Ownership interest acquired	48.30%
FinTech
Business Acquisition [Line Items]
Redemption of shares (in shares)	4,900,000
Gross redemption payments	$ 49,800,000
Number of outstanding shares subsequent to redemption (in shares)	18,900,000
Cash consideration to Intermex shareholders	$ (102,000,000.0)
Consideration paid in equity (in shares)	17,200,000
Ownership interest acquired	51.70%
Stella Point
Business Acquisition [Line Items]
Transaction price paid in cash		$ 52,000,000.0
Transaction price paid in equity		12,400,000
Outstanding debt		78,000,000.0
Additional debt		5,000,000.0
Contingent consideration		$ 0
Ownership interest acquired			80.70%
Transaction cost			$ 3,900,000	$ 8,700,000	$ 0	$ 10,300,000