OTHER COMPREHENSIVE INCOME (Tables)

12 Months Ended

Dec. 31, 2018

OTHER COMPREHENSIVE INCOME [Abstract]

Accumulated Other Comprehensive Income, Net of Tax

in thousands	2018	2017	2016
AOCI
Interest rate hedges	$       (11,180)	$     (11,438)	$     (13,300)
Pension and postretirement plans	(161,035)	(138,028)	(126,076)
Total	$     (172,215)	$   (149,466)	$   (139,376)

Changes in Accumulated Other Comprehensive Income, Net of Tax

		Pension and
	Interest Rate	Postretirement
in thousands	Hedges	Benefit Plans	Total
AOCI
Balances at December 31, 2015	$       (14,494)	$   (105,575)	$   (120,069)
Other comprehensive income (loss)
before reclassifications	0	(20,583)	(20,583)
Amounts reclassified from AOCI	1,194	82	1,276
Net OCI changes	1,194	(20,501)	(19,307)
Balances at December 31, 2016	$       (13,300)	$   (126,076)	$   (139,376)
Other comprehensive income (loss)
before reclassifications	0	(14,106)	(14,106)
Amounts reclassified from AOCI	1,862	2,154	4,016
Net OCI changes	1,862	(11,952)	(10,090)
Balances at December 31, 2017	$       (11,438)	$   (138,028)	$   (149,466)
Released stranded tax effects ASU 2018-02 (Note 9)	(2,464)	(27,165)	(29,629)
Balances at January 1, 2018, due to reclassification	$       (13,902)	$   (165,193)	$   (179,095)
Other comprehensive income (loss)
before reclassifications	2,496	(207)	2,289
Amounts reclassified from AOCI	226	4,365	4,591
Net OCI changes	2,722	4,158	6,880
Balances at December 31, 2018	$       (11,180)	$   (161,035)	$   (172,215)

Amounts Reclassified from Accumulated Other Comprehensive Income to Earnings

in thousands	2018	2017	2016
Amortization of Interest Rate Hedge Losses
Interest expense	$            306	$        3,070	$        2,008
Benefit from income taxes	(80)	(1,208)	(814)
Total	$            226	$        1,862	$        1,194
Amortization of Pension and Postretirement Plan
Actuarial Loss and Prior Service Cost
Other nonoperating income	$         5,906	$        2,915	$           134
Benefit from income taxes	(1,541)	(761)	(52)
Total	$         4,365	$        2,154	$             82
Total reclassifications from AOCI to earnings	$         4,591	$        4,016	$        1,276