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Other Expense, Net (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Other Income and Expenses [Abstract] |  |  |  |  |
Facilities closure costs and other | [1] | $ (1.4) | $ 0.0 | $ (3.3) | $ 0.0
Acquisition-related costs | [2] | (0.3) | 0.0 | (0.3) | 0.0
Multiemployer pension withdrawal | [3] | (0.9) | 0.0 | (0.9) | 0.0
Asset disposals and write-offs |  | (1.1) | (3.7) | (2.9) | (4.7)
Integration-related and other costs | [4] | 0.0 | (3.6) | 0.0 | (6.7)
DeRidder restructuring | [5] | 0.0 | 1.0 | 0.0 | (0.2)
Refundable state tax credit | [6] | 0.0 | 0.0 | 0.0 | 3.6
Other |  | (1.4) | 2.1 | (1.6) | 1.2
Operating Costs and Expenses |  | $ 5.1 | $ 4.2 | $ 9.0 | $ 6.8
[1] | The three and six months ended June 30, 2016 include facilities closure costs related to corrugated products facilities and a paper products facility.
[2] | The three and six months ended June 30, 2016 include acquisition-related costs for the announced TimBar Corporation acquisition.
[3] | The three and six months ended June 30, 2016 include costs related to our withdrawal from a multiemployer pension plan for one of our corrugated products facilities.
[4] | The three and six months ended June 30, 2015 include Boise acquisition integration-related and other costs. These costs primarily relate to professional fees, severance, retention, relocation, travel, and other integration-related costs.
[5] | The three and six months ended June 30, 2015 include amounts from restructuring activities at our mill in DeRidder, Louisiana.
[6] | The six months ended June 30, 2015 include a tax credit from the State of Louisiana related to our capital investment and the jobs retained at the DeRidder, Louisiana mill.

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=73531572&loc=d3e1043-128460 + Details
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- Definition Amount of restructuring charges, remediation cost, and asset impairment loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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