EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share, Basic and Diluted [Abstract]
Net earnings attributable to common shareholders - basic and diluted	$ 19,550	$ 20,098	$ 16,188	$ 14,864	$ 18,003	$ 15,273	$ 55,836	$ 48,140
Basic and diluted common shares outstanding [Abstract]
Weighted average common shares outstanding - basic (in shares)	13,320			13,471			13,329	13,467
Effect of dilutive shares (in shares)	58			73			81	125
Weighted average shares common outstanding - diluted (in shares)	13,378			13,544			13,410	13,592
Earnings per common share - basic (in dollars per share)	$ 1.47			$ 1.10			$ 4.19	$ 3.57
Earnings per common share - diluted (in dollars per share)	$ 1.46			$ 1.10			$ 4.16	$ 3.54