Acquisitions - Pure Water Solutions (Details)
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Jan. 01, 2015
USD ($)
project
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Jan. 31, 2016
USD ($)
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Jul. 31, 2015
USD ($)
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Jul. 31, 2014
USD ($)
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| Net Assets |
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| Goodwill |
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$ 277,847,000
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$ 241,951,000
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$ 231,647,000
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| Pure Water Solutions, Inc. |
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| Acquisitions |
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| Pre-acquisition annual revenues |
$ 8,000,000
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| Total consideration for the transaction, excluding acquisition-related costs |
11,835,000
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| Net Assets |
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| Current assets |
1,417,000
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| Property, plant and equipment |
1,966,000
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| Other assets |
20,000
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| Current liabilities |
(503,000)
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| Net assets acquired |
$ 8,870,000
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| Amortizable intangible assets, useful life |
12 years
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| Number of in-process research and development projects acquired | project |
0
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| Goodwill |
$ 2,965,000
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| Goodwill deductible for income tax purposes |
2,965,000
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| Pure Water Solutions, Inc. | Customer relationships |
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| Net Assets |
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| Amortizable intangible assets |
$ 5,940,000
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| Amortizable intangible assets, useful life |
12 years
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| Pure Water Solutions, Inc. | Brand names |
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| Net Assets |
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| Amortizable intangible assets |
$ 30,000
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| Amortizable intangible assets, useful life |
1 year
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