Accounts Payable and Accrued Liabilities Accounts Payable and Accrued Liabilites (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Accounts Payable and Accrued Liabilities [Abstract]
Wages, Salaries and Employee Benefits	$ 14,992	$ 13,361
Trade Accounts Payable	6,389	4,784
Taxes other than Income Taxes	6,363	7,004
Environmental Remediation	4,250	6,000
Interest	4,250	4,551
Book Overdrafts	4,085	3,623
Logging Related Expenses	3,456	3,788
Freight	426	1,035
Other	4,075	3,630
Accounts Payable and Accrued Liabilities, Total	$ 48,286	$ 47,776