Supplemental Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2015

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:

	Six Months Ended
	June 30,
	2015			2014
	(Dollars in Thousands)
Other current and noncurrent assets	$	(5,501	)	$	(6,139	)
Accrued salaries, benefits and payroll taxes		(13,794	)		(755	)
Accrued insurance and other taxes		(1,278	)		3,911
Accrued income taxes		(19,902	)		16,678
Accrued pension, postretirement and postemployment benefits		16,283			4,281
Other current and noncurrent liabilities		(4,878	)		(389	)
	$	(29,070	)	$	17,587

Schedule of Noncash Investing and Financing Activities

Noncash investing and financing activities are as follows:

	Six Months Ended
	June 30,
	2015		2014
	(Dollars in Thousands)
Noncash investing and financing activities:
Acquisition of assets through capital lease	$	1,331	$	6,333
Acquisition of assets through asset exchange	$	5,000	$	—