SUPPLEMENTAL CASH FLOW INFORMATION (Tables)

3 Months Ended

Mar. 31, 2021

SUPPLEMENTAL CASH FLOW INFORMATION [Abstract]

Supplemental Information Referable to Condensed Consolidated Statements of Cash Flows

	Three Months Ended
	March 31
in thousands	2021	2020
Cash Payments
Interest (exclusive of amount capitalized)	$       13,184	$       17,033
Income taxes	204	340
Noncash Investing and Financing Activities
Accrued liabilities for purchases of property, plant & equipment	$       24,832	$       25,862
Recognition of new asset retirement obligations	938	0
Right-of-use assets obtained in exchange for new
Operating lease liabilities	5,591	21,522
Finance lease liabilities	2,842	2,678