BENEFIT PLANS (Tables)

3 Months Ended

Mar. 31, 2018

Pension Benefits [Member]

Defined Benefit Plan Disclosure [Line Items]

Components of Net Periodic Benefit Cost

PENSION BENEFITS	Three Months Ended
	March 31
in thousands	2018	2017
Components of Net Periodic Benefit Cost
Service cost	$        1,429	$        1,654
Interest cost	8,876	9,057
Expected return on plan assets	(14,797)	(12,096)
Amortization of prior service cost	335	335
Amortization of actuarial loss	2,457	1,824
Net periodic pension benefit cost (credit)	$       (1,700)	$           774
Pretax reclassifications from AOCI included in
net periodic pension benefit cost	$        2,792	$        2,159

Postretirement Benefits [Member]

Defined Benefit Plan Disclosure [Line Items]

Components of Net Periodic Benefit Cost

OTHER POSTRETIREMENT BENEFITS	Three Months Ended
	March 31
in thousands	2018	2017
Components of Net Periodic Benefit Cost
Service cost	$           339	$           292
Interest cost	310	315
Amortization of prior service credit	(991)	(1,059)
Amortization of actuarial gain	(324)	(397)
Net periodic postretirement benefit credit	$          (666)	$          (849)
Pretax reclassifications from AOCI included in
net periodic postretirement benefit credit	$       (1,315)	$       (1,456)