BENEFIT PLANS (Tables)

6 Months Ended

Jun. 30, 2021

Pension Plans, Defined Benefit [Member]

Defined Benefit Plan Disclosure [Line Items]

Components of Net Periodic Benefit Cost

PENSION BENEFITS	Three Months Ended		Six Months Ended
	June 30		June 30
in thousands	2021	2020	2021	2020
Components of Net Periodic Benefit Cost
Service cost	$        1,194	$        1,331	$        2,387	$        2,662
Interest cost	4,880	7,531	9,759	15,062
Expected return on plan assets	(11,375)	(12,485)	(22,750)	(24,969)
Amortization of prior service cost	336	335	673	670
Amortization of actuarial loss	2,179	3,140	4,357	6,279
Net periodic pension benefit credit	$       (2,786)	$          (148)	$       (5,574)	$          (296)
Pretax reclassifications from AOCI included in
net periodic pension benefit cost	$        2,515	$        3,475	$        5,030	$        6,949

Other Postretirement Benefit Plans, Defined Benefit [Member]

Defined Benefit Plan Disclosure [Line Items]

Components of Net Periodic Benefit Cost

OTHER POSTRETIREMENT BENEFITS	Three Months Ended		Six Months Ended
	June 30		June 30
in thousands	2021	2020	2021	2020
Components of Net Periodic Benefit Cost
Service cost	$           265	$           380	$           530	$           760
Interest cost	106	242	212	485
Amortization of prior service credit	(477)	(980)	(953)	(1,959)
Amortization of actuarial gain	(367)	(201)	(734)	(403)
Net periodic postretirement benefit credit	$          (473)	$          (559)	$          (945)	$       (1,117)
Pretax reclassifications from AOCI included in
net periodic postretirement benefit credit	$          (844)	$       (1,181)	$       (1,687)	$       (2,362)