Concentrations of Risk	3 Months Ended
Concentrations of Risk	Mar. 31, 2014
Concentrations of Risk [Abstract]
Concentration of Risk	Concentrations of Risk Our Paper segment has had a long-standing commercial and contractual relationship with OfficeMax Incorporated (OfficeMax), and OfficeMax is our largest customer in the paper business. Following a merger in late 2013, OfficeMax is now a wholly-owned subsidiary of Office Depot, Inc. This relationship exposes us to a significant concentration of business and financial risk. For the three months ended March 31, 2014, our sales to Office Depot (including OfficeMax) represented 9% of our total company sales revenue and 42% of our Paper segment sales revenue. At March 31, 2014, and December 31, 2013, we had $55.2 million and $39.2 million of accounts receivable due from Office Depot (including OfficeMax), which represents 8% and 6% of our total company receivables, respectively. We cannot predict how the merger between OfficeMax and Office Depot will affect our business. Significant increases in paper purchases would intensify the concentration of risk. Significant reductions in paper purchases would cause our paper business to expand its customer base and could potentially decrease its profitability if new customer sales required either a decrease in pricing and/or an increase in cost of sales. Any significant deterioration in the financial condition of the post-merger entity affecting the ability to pay or causing a significant change in the willingness to continue to purchase our products could harm our business and results of operations. Labor At March 31, 2014, we had approximately 13,600 employees and approximately 51% of these employees worked pursuant to collective bargaining agreements. Approximately 75% of our hourly employees are represented by unions. The majority of our unionized employees are represented by the United Steel Workers (USW), the International Brotherhood of Teamsters (IBT), the International Association of Machinists (IAM), and the Association of Western Pulp and Paper Workers (AWPPW). We are currently in negotiations to renew or extend any union contracts that have recently expired or are expiring in the near future, including the agreements at our Jackson, Alabama, paper mill, which expire August 31, 2014. Approximately 21% of our employees work pursuant to collective bargaining agreements that will expire within the next twelve months.

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

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