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EARNINGS PER SHARE (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
EARNINGS PER SHARE
Net income available for stockholders	$ 8,097	$ 4,208
Less: Adjustments for earnings attributable to participating securities	(158)	(93)
Net income used in calculating earnings per share	$ 7,939	$ 4,115
Weighted average shares outstanding (including participating securities)	33,958	33,940
Adjustment for participating securities	(671)	(775)
Shares used in calculating basic and diluted earnings per share	33,287	33,165

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