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STOCK-BASED COMPENSATION PLANS (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restricted Stock
Non-vested Stock Awards Outstanding, Number of Shares
Balance at the beginning of the period (in shares)	371,000
Granted (in shares)	299,000
Stock awards vested (in shares)	(155,000)
Forfeited (in shares)	(65,000)
Balance at the end of the period (in shares)	450,000	371,000
Non-vested Stock Awards Outstanding, Weighted-Average Grant Date Fair Value
Balance at the beginning of the period (USD per share)	$ 33.63
Granted (USD per share)	29.47	$ 37.87	$ 35.84
Stock awards vested (USD per share)	31.13
Forfeited (USD per share)	33.34
Balance at the end of the period (USD per share)	$ 32.47	$ 33.63
Employee Stock Option
Stock Options Outstanding, Number of Shares
Balance at the beginning of the period (shares)	31,000
Granted (shares)	0
Acquired (shares)	133,000
Exercised (shares)	(11,000)
Forfeited (shares)	0
Expired (shares)	0
Balance at the end of the period (shares)	153,000	31,000
Stock Options Outstanding, Weighted-Average Exercise Price
Balance at the beginning of the period (USD per share)	$ 10.82
Granted (USD per share)	0
Acquired (USD per share)	23.99
Exercised (USD per share)	17.29
Forfeited (USD per share)	0
Expired (USD per share)	0
Balance at the end of the period (USD per share)	$ 22.00	$ 10.82

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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