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Redeemable Noncontrolling Interests - Mandatorily Redeemable Noncontrolling Interest (Details) - USD ($) $ in Millions | 12 Months Ended |
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Oct. 31, 2016 | Apr. 30, 2016
Redeemable Noncontrolling Interest, Equity [Roll Forward] |  |
Redeemable noncontrolling interests, beginning balance | $ 0.0 |
Reclassification of book value of noncontrolling interest | 12.4 |
Redeemable noncontrolling interests, ending balance | 31.8 |
Out Of Period |  |
Redeemable Noncontrolling Interest, Equity [Roll Forward] |  |
Mark to redemption value | (19.8) |
Current Period |  |
Redeemable Noncontrolling Interest, Equity [Roll Forward] |  |
Mark to redemption value | (2.1) |
Container Life Cycle Management LLC |  |
Redeemable Noncontrolling Interest, Equity [Roll Forward] |  |
Redeemable noncontrolling interests, beginning balance | 0.0 |
Reclassification of book value of noncontrolling interest | 10.4 |
Repurchase of redeemable shareholder interest | (0.8) | $ (0.8)
Redeemable noncontrolling interests, ending balance | 9.0 |
Container Life Cycle Management LLC | Out Of Period |  |
Redeemable Noncontrolling Interest, Equity [Roll Forward] |  |
Out-of period reversal of cumulative income allocated to noncontrolling interest | (1.2) |
Mark to redemption value | 0.1 |
Container Life Cycle Management LLC | Current Period |  |
Redeemable Noncontrolling Interest, Equity [Roll Forward] |  |
Mark to redemption value | $ 0.5 |

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- Definition Redeemable Noncontrolling Interest, Equity [Roll Forward] + References No definition available. + Details
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- Definition Reversal of cumulative income allocated to noncontrolling interest. + References No definition available. + Details
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- Definition Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest. + 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 15 -URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 16(c) -URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 14 -URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764 + Details
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- Definition Net Increase or Decrease in balance of noncontrolling interest in the subsidiary during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=51664549&loc=SL4568740-111683 + Details
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- Definition As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity. + 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 (12)(c) -URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph (16)(c) -URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 15 -URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 14 -URI http://asc.fasb.org/extlink&oid=27011957&loc=SL6540498-122764 + 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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