Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2018

Supplemental Cash Flow Elements [Abstract]

Components of Change in Other Assets and Liabilities, Net

The components of the change in other assets and liabilities, net, are as follows:

	March 31,
	2018			2017
	(Dollars in Thousands)
Other current and noncurrent assets	$	(9,032	)	$	(22,914	)
Accrued salaries, benefits and payroll taxes		(13,833	)		(21,335	)
Accrued insurance and other taxes		(12,545	)		(10,557	)
Accrued income taxes		7,357			3,330
Accrued pension, postretirement and postemployment benefits		6,273			6,421
Other current and noncurrent liabilities		11,359			21,385
	$	(10,421	)	$	(23,670	)

Schedule Of Other Significant Noncash Transactions

Noncash investing and financing activities are as follows:

	March 31,
	2018		2017
	(Dollars in Thousands)
Noncash investing and financing activities:
Accrued liabilities for purchases of property, plant and equipment	$	35,639	$	34,666
Acquisition of assets through capital lease	$	192	$	149

Supplemental Disclosures of Cash Flow Information

Supplemental disclosures of cash flow information are as follows:

	March 31,
	2018			2017
	(Dollars in Thousands)
Cash paid for interest	$	12,458		$	12,216
Cash (refund of) paid for income taxes	$	(7,527	)	$	6,240