ACCUMULATED OTHER COMPREHENSIVE INCOME (Summary of Amounts Reclassified Out of AOCI) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reclassifications out of accumulated other comprehensive income (loss)
Interest expense	$ 132,257	$ 105,374	$ 82,028
Income tax expense (benefit)	11,653	29,245	15,492
Total reclassifications of (income) loss for the period	3,173	(74,295)	$ (57,726)
Reclassification out of Accumulated Other Comprehensive Income
Reclassifications out of accumulated other comprehensive income (loss)
Total reclassifications of (income) loss for the period	9,064	(1,939)
(Gain) loss reclassified from accumulated other comprehensive loss to net income | Reclassification out of Accumulated Other Comprehensive Income
Reclassifications out of accumulated other comprehensive income (loss)
Interest expense	11,356	(2,855)
Income tax expense (benefit)	$ (2,292)	$ 916