INCOME TAXES, Components of the Provision for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
Current [Abstract]
Federal									$ 19,367	$ 12,709	$ 23,196
State									9,520	6,591	5,377
Foreign									200	454	240
Total current expense									29,087	19,754	28,813
Deferred [Abstract]
Federal									(492)	3,826	(611)
State									(1,799)	(249)	154
Foreign									81	(293)	413
Total deferred expense (benefit)									(2,210)	3,284	(44)
Provision for income taxes	$ 4,400	$ 7,712	$ 8,237	$ 6,528	$ 4,974	$ 5,880	$ 6,889	$ 5,295	$ 26,877	$ 23,038	$ 28,769