EQUITY METHOD INVESTMENT (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2020 USD ($) loan	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Schedule of Equity Method Investments [Line Items]
Equity method investment income									$ 24,174	$ 0	$ 0
Net income	$ 11,838	$ 6,491	$ 18,034	$ 1,048	$ 4,095	$ 4,327	$ 15,377	$ 3,192	37,411	$ 26,991	$ 12,003
Locked mortgage pipeline	$ 1,540,000								1,540,000
Equity Method Investment, Nonconsolidated Investee or Group of Investees | Intercoastal
Schedule of Equity Method Investments [Line Items]
Total revenues									120,323
Gross profit									59,659
Net income									59,761
Gain on sale of loans									$ 100,402
Volume of loans sold | loan									2,948,724,000