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Acquisitions (Schedule Of Identifiable Assets Acquired And Liabilities Assumed At Fair Value) (Details) (USD $)
In Thousands, unless otherwise specified |
Jan. 31, 2015
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Jul. 31, 2014
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Sep. 30, 2014
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|---|---|---|---|
| Business Acquisition [Line Items] | |||
| Goodwill | $ 218,319 | $ 166,406 | |
| Northern Technical [Member] | |||
| Business Acquisition [Line Items] | |||
| Cash and cash equivalents | 431 | ||
| Accounts receivable | 1,083 | ||
| Inventories | 7,775 | ||
| Other current assets | 934 | ||
| Property, plant, and equipment, net | 21,829 | ||
| Goodwill | 60,266 | ||
| Intangible assets, net | 6,200 | ||
| Other assets and deferred taxes | 221 | ||
| Total assets acquired | 98,739 | ||
| Trade accounts payable | 149 | ||
| Other current liabilities | 1,508 | ||
| Total liabilities assumed | 1,657 | ||
| Net assets acquired | $ 97,082 |