BENEFIT PLANS (Tables)

9 Months Ended

Sep. 30, 2018

Pension Benefits [Member]

Defined Benefit Plan Disclosure [Line Items]

Components of Net Periodic Benefit Cost

PENSION BENEFITS	Three Months Ended		Nine Months Ended
	September 30		September 30
in thousands	2018	2017	2018	2017
Components of Net Periodic Benefit Cost
Service cost	$        1,429	$        1,653	$        4,287	$        4,961
Interest cost	8,876	9,057	26,627	27,172
Expected return on plan assets	(14,797)	(12,097)	(44,391)	(36,289)
Amortization of prior service cost	335	335	1,005	1,005
Amortization of actuarial loss	2,457	1,824	7,370	5,471
Net periodic pension benefit cost (credit)	$       (1,700)	$           772	$       (5,102)	$        2,320
Pretax reclassifications from AOCI included in
net periodic pension benefit cost	$        2,792	$        2,159	$        8,375	$        6,476

Postretirement Benefits [Member]

Defined Benefit Plan Disclosure [Line Items]

Components of Net Periodic Benefit Cost

OTHER POSTRETIREMENT BENEFITS	Three Months Ended		Nine Months Ended
	September 30		September 30
in thousands	2018	2017	2018	2017
Components of Net Periodic Benefit Cost
Service cost	$           339	$           292	$        1,018	$           875
Interest cost	310	315	930	945
Amortization of prior service credit	(991)	(1,059)	(2,972)	(3,177)
Amortization of actuarial gain	(324)	(397)	(973)	(1,190)
Net periodic postretirement benefit credit	$          (666)	$          (849)	$       (1,997)	$       (2,547)
Pretax reclassifications from AOCI included in
net periodic postretirement benefit credit	$       (1,315)	$       (1,456)	$       (3,945)	$       (4,367)