EQUITY (Details) - USD ($) $ in Thousands		12 Months Ended
	Jan. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
EQUITY
Amount authorized under the Repurchase Plan	$ 30,000
Remaining amount available for repurchase	$ 19,800
Repurchase plan expiration period	1 year
Number of shares in remaining available for repurchase		26,600,000
Common stock repurchased		$ 4,749	$ 22,793	$ 32,824
Central Bank
EQUITY
Retained earnings		82,500
Common Stock
EQUITY
Common stock repurchased		$ 4,749	$ 22,793	$ 32,824
Common Stock | Existing Share Repurchase Plan
EQUITY
Number of shares repurchased or acquired through tender offer		206,802
Value of shares repurchased or acquired through tender offer		$ 4,700
Common shares outstanding
EQUITY
Number of shares repurchased or acquired through tender offer		206,802	797,003	1,155,157