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Redeemable Noncontrolling Interests (Details) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jul. 31, 2016 USD ($) | Oct. 31, 2016 USD ($) joint_venture | Apr. 30, 2016 USD ($)
Noncontrolling Interest [Line Items] |  |  |
Redemption price | $ 5.5 | $ 5.5 |
Paper Packaging And Services |  |  |
Noncontrolling Interest [Line Items] |  |  |
Number of joint ventures (joint venture) | joint_venture |  | 1 |
Rigid Industrial Packaging & Services |  |  |
Noncontrolling Interest [Line Items] |  |  |
Number of joint ventures (joint venture) | joint_venture |  | 1 |
Container Life Cycle Management LLC |  |  |
Noncontrolling Interest [Line Items] |  |  |
Redemption value |  | $ 0.8 | $ 0.8
Container Life Cycle Management LLC | Other Long Term Liabilities |  |  |
Noncontrolling Interest [Line Items] |  |  |
Redemption value |  | $ 9.0 |

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- Definition Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4569655-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4616395-111683 + Details
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- Definition Redemption value, as if currently redeemable, of redeemable noncontrolling interest classified as temporary equity and the election has been made to accrete changes in redemption value to the earliest redemption date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 24(b) -URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764 + Details
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