Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Operating activities
Net income	$ 19,317	$ 16,562
Adjustments to reconcile to net cash provided by operations:
Depreciation, depletion and amortization	36,893	32,024
Amortization of debt issue costs and original issue discount	656	649
Pension expense, net of unfunded benefits paid	3,330	6,433
Deferred income tax benefit	(2,724)	(971)
Gains on dispositions of plant, equipment and timberlands, net	(2,291)	(92)
Share-based compensation	3,617	3,587
Change in operating assets and liabilities
Accounts receivable	(23,805)	(20,008)
Inventories	(21,783)	2,071
Prepaid and other current assets	(6,937)	4,069
Accounts payable	(16,870)	7,357
Accruals and other current liabilities	(11,147)	(6,477)
Other	378	3,023
Net cash (used) provided by operating activities	(21,366)	48,227
Investing activities
Expenditures for purchases of plant, equipment and timberlands	(30,156)	(60,823)
Proceeds from disposals of plant, equipment and timberlands, net	2,360	92
Acquisition, net of cash acquired	0	(210,911)
Other	(100)	(225)
Net cash used by investing activities	(27,896)	(271,867)
Financing activities
Net borrowings under (repayments of) revolving credit facility	(25,425)	126,139
Payments of borrowing costs	0	(419)
Proceeds from term loan	0	56,091
Repurchases of common stock	(9,158)
Payments of dividends	(9,164)	(8,245)
Payments related to share-based compensation awards and other	(1,816)	(2,332)
Net cash (used) provided by financing activities	(45,563)	171,234
Effect of exchange rate changes on cash	(41)	(518)
Net decrease in cash and cash equivalents	(94,866)	(52,924)
Cash and cash equivalents at the beginning of period	122,882	97,679
Cash and cash equivalents at the end of period	28,016	44,755
Cash paid for:
Interest, net of amounts capitalized	9,011	7,836
Income taxes, net	$ 16,323	$ 5,466