EQUITY AND EPS - Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Equity [Abstract]
Dividends declared (in dollars per share)	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.48	$ 0.48	$ 0.40
Dividends and dividend equivalents (in dollars per share)	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.48	$ 0.48	$ 0.40
Dividend payment	$ 2,635	$ 2,635	$ 2,635	$ 2,033	$ 2,030	$ 2,029	$ 2,027	$ 2,047	$ 1,703	$ 1,703	$ 1,702	$ 1,701	$ 9,938	$ 8,133	$ 6,809
Dividend equivalent payment	20	20	20	19	14	14	14	13	12	11	11	13	79	55	47
Total payment	$ 2,655	$ 2,655	$ 2,655	$ 2,052	$ 2,044	$ 2,043	$ 2,041	$ 2,060	$ 1,715	$ 1,714	$ 1,713	$ 1,714	$ 10,017	$ 8,188	$ 6,856