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Acquisitions Acquisitions - Schedule of Intangible Assets and Goodwill (Tables) | 9 Months Ended
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Jun. 30, 2017
GloFish [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Schedule of Intangible Assets and Goodwill [Table Text Block] | The preliminary purchase price allocation resulted in goodwill of $15.4, which is deductible for tax purposes. The values allocated to intangible assets and the weighted average useful lives are as follows:
|  | Carrying Amount |  | Weighted Average Useful Life (Years)
Tradenames |  | $ | 6.1 |  |  | Indefinite
Technology |  | 30.2 |  |  | 13
Customer relationships |  | 1.5 |  |  | 10
Total intangibles acquired |  | $ | 37.8 |  |  |
Petmatrix LLC [Member] |
Acquired Finite-Lived Intangible Assets [Line Items] |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
|  | Carrying Amount |  | Weighted Average Useful Life (Years)
Tradenames |  | $ | 75.0 |  |  | Indefinite
Technology |  | 21.0 |  |  | 14
Customer relationships |  | 12.0 |  |  | 16
Non-compete agreement |  | 2.4 |  |  | 5
Total intangibles acquired |  | $ | 110.4 |  |  |

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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. + Details
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- Definition Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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