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Business Acquisition (Narrative) (Details) € in Thousands, $ in Thousands |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 01, 2018 USD ($) | Mar. 31, 2019 USD ($) | Mar. 31, 2018 USD ($) | Mar. 31, 2019 USD ($) | Mar. 31, 2018 USD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2018 EUR (€) | Sep. 30, 2018 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Borrowings on revolving lines of credit |  |  |  | $ 865,617 | $ 809,680 |  |  |
Amortization of intangible assets |  | $ 16,693 | $ 6,258 | 34,165 | 12,501 |  |  |
Net sales |  | 758,844 | 548,249 | 1,411,655 | 1,018,397 |  |  |
Earnings before income taxes |  | 90,168 | $ 48,647 | 151,683 | $ 86,134 |  |  |
Acquisition financing related costs |  | 3,698 |  | $ 7,497 |  |  |  |
Business Acquisition, Acquiree - L'Orange [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Effective Date of Acquisition |  |  |  | Jun. 01, 2018 |  |  |  |
Purchase agreement contract price |  |  |  |  |  |  | € 700,000 | $ 811,000
Proceeds from issuance of long-term debt |  |  |  |  |  | $ 400,000 |  |
Borrowings on revolving lines of credit |  |  |  |  |  | $ 167,420 |  |
Amortization of intangible assets |  | 10,885 |  | $ 22,578 |  |  |  |
Goodwill, Acquired During Period | $ 257,447 |  |  |  |  |  |  |
Net sales |  | 87,986 |  | 175,666 |  |  |  |
Earnings before income taxes |  | $ 11,898 |  | $ 22,500 |  |  |  |
Defined Benefit Pension Plan [Member] | Business Acquisition, Acquiree - L'Orange [Member] |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Pension obligation assumed in L'Orange aquisition | 39,257 |  |  |  |  |  |  |
Current portion of pension obligation | $ 1,143 |  |  |  |  |  |  |

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=84229725&loc=d3e1043-128460 + Details
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- Definition The purchase price of the acquired entity as stated in the purchase agreement. This price has not been adjusted for subsequent customary purchase price adjustments, for example working capital adjustments. + References No definition available. + Details
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