OTHER COMPREHENSIVE INCOME (Tables)

12 Months Ended

Dec. 31, 2019

OTHER COMPREHENSIVE INCOME [Abstract]

Accumulated Other Comprehensive Income, Net of Tax

in thousands	2019	2018	2017
AOCI
Interest rate hedges	$       (10,953)	$     (11,180)	$     (11,438)
Pension and postretirement plans	(186,785)	(161,035)	(138,028)
Total	$     (197,738)	$   (172,215)	$   (149,466)

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, 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)
Other comprehensive income (loss)
before reclassifications	0	(26,892)	(26,892)
Amounts reclassified from AOCI	227	1,142	1,369
Net OCI changes	227	(25,750)	(25,523)
Balances at December 31, 2019	$       (10,953)	$   (186,785)	$   (197,738)

Amounts Reclassified from Accumulated Other Comprehensive Income to Earnings

in thousands	2019	2018	2017
Amortization of Interest Rate Hedge Losses
Interest expense	$            307	$           306	$        3,070
Benefit from income taxes	(80)	(80)	(1,208)
Total	$            227	$           226	$        1,862
Amortization of Pension and Postretirement Plan
Actuarial Loss and Prior Service Cost
Other nonoperating expense	$         1,545	$        5,906	$        2,915
Benefit from income taxes	(403)	(1,541)	(761)
Total	$         1,142	$        4,365	$        2,154
Total reclassifications from AOCI to earnings	$         1,369	$        4,591	$        4,016