NET EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Net Earnings - Basic and Diluted	$ 29,782	$ 28,930	$ 22,731	$ 23,411	$ 58,712	$ 46,142
Weighted average common shares - basic (in shares)	31,999,000		32,232,000		32,020,000	32,243,000
Effect of dilutive securities - stock options, restricted stock, and performance shares (in shares)	315,000		419,000		375,000	410,000
Weighted average common shares - diluted (in shares)	32,314,000		32,651,000		32,395,000	32,653,000
Net earnings per share - basic (in dollars per share)	$ 0.93		$ 0.71		$ 1.83	$ 1.43
Net earnings per share - diluted (in dollars per share)	$ 0.92		$ 0.70		$ 1.81	$ 1.41
Anti-dilutive shares (in shares)	294,568		153,868		237,453	304,324