BENEFIT PLANS (Tables)

3 Months Ended

Mar. 31, 2017

Pension Benefits [Member]

Defined Benefit Plan Disclosure [Line Items]

Components of Net Periodic Benefit Cost

PENSION BENEFITS	Three Months Ended
	March 31
in thousands	2017	2016
Components of Net Periodic Benefit Cost
Service cost	$        1,654	$        1,336
Interest cost	9,057	9,126
Expected return on plan assets	(12,096)	(12,891)
Amortization of prior service cost (credit)	335	(11)
Amortization of actuarial loss	1,824	1,541
Net periodic pension benefit cost (credit)	$           774	$          (899)
Pretax reclassifications from AOCI included in
net periodic pension benefit cost	$        2,159	$        1,530

Postretirement Plans [Member]

Defined Benefit Plan Disclosure [Line Items]

Components of Net Periodic Benefit Cost

OTHER POSTRETIREMENT BENEFITS	Three Months Ended
	March 31
in thousands	2017	2016
Components of Net Periodic Benefit Cost
Service cost	$           292	$           281
Interest cost	315	302
Amortization of prior service credit	(1,059)	(1,059)
Amortization of actuarial gain	(397)	(438)
Net periodic postretirement benefit cost (credit)	$          (849)	$          (914)
Pretax reclassifications from AOCI included in
net periodic postretirement benefit credit	$       (1,456)	$       (1,497)