ACQUISITIONS - Supplemental Pro Forma Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Supplemental Pro Forma Financial Information [Abstract]
Acquisitions-related expenses	$ 3,300		$ 3,600
Total revenue, net of interest expense, pro forma	149,576	$ 154,878	304,088	$ 303,152
Net income, pro forma	$ 39,072	$ 46,447	$ 80,848	$ 86,774