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Acquisitions Purchase Price Allocation (Details) (USD $) |  |  |  |  | 0 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Oct. 25, 2013 Boise Inc. | Oct. 25, 2013 Customer Relationships Boise Inc. | Oct. 25, 2013 Trademarks and Trade Names Boise Inc. | Oct. 25, 2013 Minimum Boise Inc. | Oct. 25, 2013 Minimum Customer Relationships Boise Inc. | Oct. 25, 2013 Minimum Trademarks and Trade Names Boise Inc. | Oct. 25, 2013 Maximum Boise Inc. | Oct. 25, 2013 Maximum Customer Relationships Boise Inc. | Oct. 25, 2013 Maximum Trademarks and Trade Names Boise Inc.
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  |  |  | $ 121,658,000 |  |  |  |  |  |  |  |  |  |  |
Accounts receivable |  |  |  | 270,364,000 |  |  |  |  |  |  |  |  |  |  |
Inventories |  |  |  | 286,277,000 |  |  |  |  |  |  |  |  |  |  |
Deferred income taxes |  |  |  | 9,144,000 |  |  |  |  |  |  |  |  |  |  |
Prepaid expenses and other current assets |  |  |  | 8,624,000 |  |  |  |  |  |  |  |  |  |  |
Total current assets |  |  |  | 696,067,000 |  |  |  |  |  |  |  |  |  |  |
Property, plant, and equipment (a) |  |  |  | 1,401,183,000 | [1] |  |  |  |  |  |  |  |  |  |
Intangible assets (b): |  |  |  |  |  | 256,400,000 | [2] | 20,600,000 | [2] |  |  |  |  |  |
Goodwill (c) | 526,789,000 | 67,160,000 | 58,214,000 | 458,579,000 | [3] |  |  |  |  |  |  |  |  |  |
Other long-term assets |  |  |  | 21,786,000 |  |  |  |  |  |  |  |  |  |  |
Assets acquired |  |  |  | 2,854,615,000 |  |  |  |  |  |  |  |  |  |  |
Current liabilities |  |  |  | 322,230,000 |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  | 829,750,000 |  |  |  |  |  |  |  |  |  |  |
Deferred tax liabilities |  |  |  | 281,463,000 |  |  |  |  |  |  |  |  |  |  |
Other long-term liabilities |  |  |  | 131,276,000 |  |  |  |  |  |  |  |  |  |  |
Liabilities assumed |  |  |  | 1,564,719,000 |  |  |  |  |  |  |  |  |  |  |
Net assets acquired |  |  |  | 1,289,896,000 |  |  |  |  |  |  |  |  |  |  |
Property and equipment, useful life |  |  |  |  |  |  |  |  |  | 1 year |  |  | 30 years |  |
Acquired finite-lived intangible assets, useful life |  |  |  |  |  |  |  |  |  |  | 15 years | 5 years |  | 20 years | 20 years
Acquired goodwill expected to be tax deductible |  |  |  | $ 1,900,000 |  |  |  |  |  |  |  |  |  |  |
[1] | Property and equipment acquired are being depreciated on a straight-line basis over their estimated remaining lives, which range from one to 30 years.
[2] | We are amortizing the intangible assets on a straight-line basis over the following (in years):Customer relationships15-20Trademarks and trade names5-20
[3] | Goodwill is the excess of purchase price over the fair value of tangible and identifiable intangible assets acquired and liabilities assumed. Goodwill generated from the acquisition is primarily attributable to expected synergies and the assembled workforce. Goodwill recognized in the transaction is not deductible for income tax purposes; however, we assumed $1.9 million of goodwill that Boise had been amortizing in connection with previous acquisitions, which we will continue to amortize and deduct for income tax purposes.

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- Definition Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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