Summary of Gross Sales Estimated by Product category (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Revenue from External Customer [Line Items]
Gross sales	$ 431,074	$ 449,753	$ 1,384,750	$ 1,294,764
Sales Reserves and Eliminations	(31,890)	(33,546)	(97,158)	(79,648)
Total Net Sales	399,184	416,207	1,287,592	1,215,116
Premium Folding Cartons
Revenue from External Customer [Line Items]
Gross sales	257,827	260,285	842,704	781,171
Inserts
Revenue from External Customer [Line Items]
Gross sales	56,274	81,003	183,361	202,527
Labels
Revenue from External Customer [Line Items]
Gross sales	36,216	27,689	101,865	95,316
Rigid Packaging
Revenue from External Customer [Line Items]
Gross sales	23,181	23,485	89,104	45,072
Other Consumer Products
Revenue from External Customer [Line Items]
Gross sales	$ 57,576	$ 57,291	$ 167,716	$ 170,678

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Aggregate of: (i) sales discounts given by the entity, including, but not limited to, early payments of accounts due, (ii) the total deduction from sales during the period arising from goods returned by customers (other than under warranty provisions), and (iii) price reductions (allowance, price protection agreements) given by the entity. Discounts, returns and allowances are a deduction from gross revenue in arriving at net revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 50
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=51666513&loc=d3e63676-111659

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 15
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=51671139&loc=d3e47468-111626

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 1
-Article 5

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Aggregate revenue during the period from sale of goods in the normal course of business, before 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
-Subparagraph (SX 210.5-03.1(a))
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales 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
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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