DERIVATIVES AND HEDGING ACTIVITIES - Effect on Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Effect of cash flow hedge accounting on Accumulated Other Comprehensive Income (Loss):
Gain (loss) recognized in other comprehensive income	$ 6,852	$ 4,948
Gain recognized on termination of derivatives		(16,505)
Interest Rate Products [Member] | Other Comprehensive Income
Effect of cash flow hedge accounting on Accumulated Other Comprehensive Income (Loss):
Gain (loss) recognized in other comprehensive income	6,852	4,948
Interest Rate Products [Member] | Other Comprehensive Income | Interest Expense
Effect of cash flow hedge accounting on Accumulated Other Comprehensive Income (Loss):
Loss reclassified from other comprehensive income into interest expense	$ (31)	(854)
Interest Rate Products [Member] | Other Comprehensive Income | Derivatives.
Effect of cash flow hedge accounting on Accumulated Other Comprehensive Income (Loss):
Gain recognized on termination of derivatives		$ 16,505