SUPPLEMENTAL CASH FLOW INFORMATION (Tables)

3 Months Ended

Mar. 31, 2017

SUPPLEMENTAL CASH FLOW INFORMATION [Abstract]

Supplemental Information Referable to Condensed Consolidated Statements of Cash Flows

	Three Months Ended
	March 31
in thousands	2017	2016
Cash Payments
Interest (exclusive of amount capitalized)	$        2,498	$        2,715
Income taxes	1,562	6,486
Noncash Investing and Financing Activities
Accrued liabilities for purchases of property, plant & equipment	$      32,492	$      25,880
Accrued liabilities for common stock purchases	0	3,164