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Inventories (Detail) (USD $)
12 Months Ended
Dec. 31, 2011
Dec. 31, 2013
Dec. 31, 2012
Inventory Disclosure [Abstract]      
Pulp, paperboard and tissue products   $ 182,715,000 $ 147,627,000
Materials and supplies   69,836,000 67,889,000
Logs, pulpwood, chips and sawdust   15,237,000 15,950,000
Inventories   267,788,000 231,466,000
Effect of LIFO inventory liquidation on income $ 10,600,000