Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Operating activities
Net income (loss)	$ 19,927	$ (271)
Adjustments to reconcile to net cash provided by operations:
Depreciation, depletion and amortization	34,257	32,166
Amortization of debt issue costs and original issue discount	1,331	1,438
Pension expense, net of unfunded benefits paid	3,733	4,397
Deferred income tax provision (benefit)	9,916	(5,776)
Gains on dispositions of plant, equipment and timberlands, net	(3,204)	(168)
Share-based compensation	2,860	2,963
Cellulosic biofuel and alternative fuel mixture credits	17,833	54,880
Change in operating assets and liabilities
Accounts receivable	(18,426)	(17,522)
Inventories	(16,647)	(343)
Prepaid and other current assets	(8,685)	(5,492)
Accounts payable	18,263	27,988
Accruals and other current liabilities	(4,928)	(12,559)
Other	(7,917)	974
Net cash provided by operating activities	48,313	82,675
Investing activities
Expenditures for purchases of plant, equipment and timberlands	(27,877)	(15,445)
Proceeds from disposals of plant, equipment and timberlands, net	3,440	182
Acquisition of Concert Industries Corp., net of cash acquired		(229,080)
Net cash used by investing activities	(24,437)	(244,343)
Financing activities
Proceeds from $100 million 71/8% note offering, net of original issue discount		95,000
Payments of note offering and credit facility costs		(4,530)
Net borrowings of revolving credit facility	0	0
Net borrowings (repayments) of short term debt	(798)	2,016
Repayment of 2011 Term Loan		(14,000)
Payments of dividends	(8,396)	(8,360)
Repurchase of common stock	(4,369)
Proceeds from stock options exercised and other	117	110
Net cash provided (used) by financing activities	(13,446)	70,236
Effect of exchange rate changes on cash	2,078	(1,361)
Net increase (decrease) in cash and cash equivalents	12,508	(92,793)
Cash and cash equivalents at the beginning of period	95,788	135,420
Cash and cash equivalents at the end of period	108,296	42,627
Cash paid (received) for
Interest	11,551	11,530
Income taxes	$ (10,906)	$ (45,509)