FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2018

FAIR VALUE MEASUREMENTS [Abstract]

Fair Value Measurement on Recurring Basis

	Level 1 Fair Value
	March 31	December 31	March 31
in thousands	2018	2017	2017
Fair Value Recurring
Rabbi Trust
Mutual funds	$       19,412	$       20,348	$         5,148
Equities	0	0	10,608
Total	$       19,412	$       20,348	$       15,756

	Level 2 Fair Value
	March 31	December 31	March 31
in thousands	2018	2017	2017
Fair Value Recurring
Rabbi Trust
Money market mutual fund	$        2,738	$        1,203	$        2,849
Total	$        2,738	$        1,203	$        2,849