EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share, Basic and Diluted [Abstract]
Net earnings attributable to common shareholders - basic and diluted	$ 16,188	$ 15,273
Basic and diluted common shares outstanding [Abstract]
Weighted average common shares outstanding - basic (in shares)	13,356	13,434
Effect of dilutive shares (in shares)	101	163
Weighted average shares common outstanding - diluted (in shares)	13,457	13,597
Earnings per common share - basic (in dollars per share)	$ 1.21	$ 1.14
Earnings per common share - diluted (in dollars per share)	$ 1.20	$ 1.12