Level 4 Inventories (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Inventory, Net [Abstract]
Finished goods and work in process	$ 345,475	$ 292,218
Logs	49,046	65,423
Other raw materials and supplies	26,538	25,718
Inventories	$ 421,059	$ 383,359