OTHER INCOME AND EXPENSE (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component	$ (5,895)	$ (8,824)	$ (17,252)
Other Nonoperating Expense	2,919	2,535	2,727
Other Nonoperating Income (Expense)	$ 2,976	$ 11,359	$ 14,525