Represents number of distribution centers.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.18)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 12
-Article 7

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- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

+ References

Reference 1: 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=56944662&loc=d3e3602-108585

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

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- Definition

The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Section 45
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-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585

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- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Segment Information (Details) $ in Thousands	1 Months Ended	3 Months Ended
Segment Information (Details) $ in Thousands	Jun. 30, 2015 segment item	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)
Segment information
Number of reportable segments \| segment	2
Net Sales		$ 738,215	$ 546,289
Operating Income (Loss)		34,600	47,349
Depreciation and amortization		44,539	35,121
Capital Expenditures		36,163	28,762
Assets		3,212,666	2,587,675	$ 3,222,110
Operating Segment
Segment information
Net Sales		738,215	546,289
Intersegment
Segment information
Net Sales		(16,469)
Paper And Packaging
Segment information
Net Sales		520,040	546,289
Operating Income (Loss)		46,241	58,399
Depreciation and amortization		37,136	34,477
Capital Expenditures		32,355	26,250
Assets		2,501,605	2,544,235
Paper And Packaging \| Operating Segment
Segment information
Net Sales		536,509	546,289
Paper And Packaging \| Intersegment
Segment information
Net Sales		16,469
Distribution
Segment information
Net Sales		218,175
Operating Income (Loss)		1,381
Depreciation and amortization		5,661
Capital Expenditures		2,066
Assets		665,458
Distribution \| Operating Segment
Segment information
Net Sales		218,175
Corporate
Segment information
Operating Income (Loss)		(13,022)	(11,050)
Depreciation and amortization		1,742	644
Capital Expenditures		1,742	2,512
Assets		45,603	43,440
Containerboard And Corrugated Products \| Paper And Packaging
Segment information
Net Sales		324,290	344,311
Containerboard And Corrugated Products \| Paper And Packaging \| Operating Segment
Segment information
Net Sales		340,759	344,311
Containerboard And Corrugated Products \| Paper And Packaging \| Intersegment
Segment information
Net Sales		16,469
Specialty Paper \| Paper And Packaging
Segment information
Net Sales		174,438	179,203
Specialty Paper \| Paper And Packaging \| Operating Segment
Segment information
Net Sales		174,438	179,203
Other Products \| Paper And Packaging
Segment information
Net Sales		21,312	22,775
Other Products \| Paper And Packaging \| Operating Segment
Segment information
Net Sales		$ 21,312	$ 22,775
Victory Acquisition
Segment information
Number of distribution centers \| item	70