CAPITAL STOCK (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Class of Stock [Line Items]
Authorized common stock (in shares)	199,000,000	199,000,000
Common stock and treasury stock and the share activity
Balance at the beginning of the year (in shares)	70,400,000
Balance at the end of the year (in shares)	70,800,000	70,400,000
Cash dividends paid on the common stock	$ 99,461	$ 98,509	$ 92,658
Common Shares
Common stock and treasury stock and the share activity
Balance at the beginning of the year (in shares)	70,370,812	69,516,805	68,608,508
Restricted stock vestings (in shares)	176,535	171,935	79,700
Balance at the end of the year (in shares)	70,848,810	70,370,812	69,516,805
Common Shares | Employee option exercises
Common stock and treasury stock and the share activity
Stock option exercises (in shares)	301,463	634,572	802,046
Common Shares | Director option exercises
Common stock and treasury stock and the share activity
Stock option exercises (in shares)	0	47,500	26,551
Treasury Stock
Common stock and treasury stock and the share activity
Balance at the beginning of the year (in shares)	4,852,709	4,528,051	4,836,027
Common stock repurchased (in shares)	860,000	614,974	0
Balance at the end of the year (in shares)	5,555,027	4,852,709	4,528,051
Treasury Stock | Employee option exercises
Common stock and treasury stock and the share activity
Stock option exercises (in shares)	157,682	290,316	307,976