STOCKHOLDERS' EQUITY (Reclass) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Unrecognized Net Periodic Benefit Credit (cost)
Significant reclassifications out of accumulated other comprehensive loss by component
Total, pre-tax	$ 56	$ (1,745)
Tax benefit (expense)	(14)	449
Total, net of tax	42	(1,296)
Amortization of net actuarial gain (loss)
Significant reclassifications out of accumulated other comprehensive loss by component
Total, pre-tax	145	(398)
Amortization of prior service credit
Significant reclassifications out of accumulated other comprehensive loss by component
Total, pre-tax		9
Pension settlement expense
Significant reclassifications out of accumulated other comprehensive loss by component
Total, pre-tax	$ (89)	$ (1,356)