COMPENSATION PLANS - Summary of Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Shares
Outstanding beginning of year (in shares)	368	1,015	536
Forfeited during the year (in shares)	(1)	(32)	(4)
Exercised during the year (in shares)	(5)	(615)	(12)
Outstanding, end of year (in shares)	362	368	1,015
Weighted Average Exercise Price
Outstanding beginning of year (in USD per share)	$ 43.72	$ 43.88	$ 45.11
Granted during the year (in USD per share)	0	0	42.87
Forfeited during the year (in USD per share)	41.33	41.33	53.83
Exercised during the year (in USD per share)	41.33	44.11	53.83
Outstanding, end of year (in USD per share)	$ 43.76	$ 43.72	$ 43.88
Vested Options:
Vested during the year (in shares)	161	248	115
Vested during the year (in USD per share)	$ 42.98	$ 46.70	$ 50.46
Eligible, end of year for exercise (in shares)	223	67	439
Eligible, end of year for exercise (in USD per share)	$ 44.25	$ 47.05	$ 43.19
Aggregate intrinsic value ($ in thousands):
Total options outstanding	$ 6,204	$ 13,593	$ 24,838
Options exercisable	3,716	2,268	11,047
Options exercised	$ 91	$ 26,348	$ 97
Weighted average fair value of options granted during the year (in USD per share)			$ 15.17
Stock Appreciation Rights (SARs)
Shares
Outstanding beginning of year (in shares)	224	485	535
Forfeited during the year (in shares)	0	0	(10)
Exercised during the year (in shares)	0	(261)	(40)
Outstanding, end of year (in shares)	224	224	485
Weighted Average Exercise Price
Outstanding beginning of year (in USD per share)	$ 64.33	$ 56.96	$ 54.53
Forfeited during the year (in USD per share)	0	0	68.01
Exercised during the year (in USD per share)	0	50.63	22.39
Outstanding, end of year (in USD per share)	$ 64.33	$ 64.33	$ 56.96
Vested Options:
Vested during the year (in shares)	0	85	115
Vested during the year (in USD per share)	$ 0	$ 63.86	$ 60.71
Eligible, end of year for exercise (in shares)	224	224	404
Eligible, end of year for exercise (in USD per share)	$ 64.33	$ 64.33	$ 55.58
Aggregate intrinsic value ($ in thousands):
Total options outstanding	$ 383	$ 3,669	$ 6,032
Options exercisable	383	3,669	5,540
Options exercised	$ 0	$ 9,045	$ 1,918

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