CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2018
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
NET EARNINGS	$ 69,082	$ 63,192	$ 55,122
OTHER COMPREHENSIVE INCOME, NET OF TAX:
Foreign currency translation adjustments	(720)	(803)	1,115
Other comprehensive income (loss)	(720)	(803)	1,115
TOTAL COMPREHENSIVE INCOME	$ 68,362	$ 62,389	$ 56,237