SIGNIFICANT ACCOUNTING POLICIES - SEC Simplification (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
New accounting pronouncements
Gain/(loss) on sales of real estate owned, net of tax			$ 226,199
Tax (provision)/benefit, net	$ (688)	$ 240	(11,574)
Previously Reported
New accounting pronouncements
Gain/(loss) on sales of real estate owned, net of tax			210,851
Tax (provision)/benefit, net			3,774
Adjustment
New accounting pronouncements
Tax impact of sales of real estate owned			$ 15,348