DERIVATIVE INSTRUMENTS - Pre-tax Gain (Loss) on Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Derivative [Line Items]
Pre-tax gains (losses) on interest rate derivatives recognized	$ 4,081	$ (16,632)
Total gain (loss) on derivatives	(4,150)	(1,033)
Interest Rate Swap
Derivative [Line Items]
Pre-tax gains (losses) on interest rate derivatives recognized	4,081	(16,632)
Interest expense | Interest Rate Swap
Derivative [Line Items]
Gain (loss) location of derivative instruments	(4,149)	(799)
Gain (loss) location of derivative instruments not designated	$ (1)	$ (234)