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v3.19.1

New Accounting Standards (Schedule of Impact of Retrospectively Applying New Accounting Standards to Condensed Consolidated Statement of Earnings) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2019 | Mar. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Net sales | $ 758,844 | $ 548,249 | $ 1,411,655 | $ 1,018,397
Costs and expenses: |  |  |  |
Cost of goods sold | 566,841 | 402,159 | 1,059,015 | 749,786
Selling, general and administrative expenses | 54,857 | 39,755 | 106,784 | 86,214
Research and development costs | 43,831 | 37,169 | 82,698 | 71,955
Restructuring charges |  | 17,013 |  | 17,013
Interest expense | 11,480 | 8,823 | 23,358 | 17,695
Interest income | (294) | (471) | (665) | (834)
Other expense (income), net | (8,039) | (4,846) | (11,218) | (9,566)
Total costs and expenses | 668,676 | 499,602 | 1,259,972 | 932,263
Earnings before income taxes | 90,168 | 48,647 | 151,683 | 86,134
Income tax expense | 12,589 | 10,158 | 24,984 | 29,385
Net earnings | $ 77,579 | 38,489 | $ 126,699 | 56,749
Accounting Standards Update 2017-07 [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Net sales |  | 548,249 |  | 1,018,397
Costs and expenses: |  |  |  |
Cost of goods sold |  | 402,159 |  | 749,786
Selling, general and administrative expenses |  | 39,755 |  | 86,214
Research and development costs |  | 37,169 |  | 71,955
Restructuring charges |  | 17,013 |  | 17,013
Interest expense |  | 8,823 |  | 17,695
Interest income |  | (471) |  | (834)
Other expense (income), net |  | (4,846) |  | (9,566)
Total costs and expenses |  | 499,602 |  | 932,263
Earnings before income taxes |  | 48,647 |  | 86,134
Income tax expense |  | 10,158 |  | 29,385
Net earnings |  | 38,489 |  | 56,749
Accounting Standards Update 2017-07 [Member] | As Previously Reported [Member] |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Net sales |  | 548,249 |  | 1,018,397
Costs and expenses: |  |  |  |
Cost of goods sold |  | 401,331 |  | 748,115
Selling, general and administrative expenses |  | 39,486 |  | 85,762
Research and development costs |  | 37,169 |  | 71,955
Restructuring charges |  | 17,013 |  | 17,013
Interest expense |  | 6,687 |  | 13,437
Interest income |  | (471) |  | (834)
Other expense (income), net |  | (1,613) |  | (3,185)
Total costs and expenses |  | 499,602 |  | 932,263
Earnings before income taxes |  | 48,647 |  | 86,134
Income tax expense |  | 10,158 |  | 29,385
Net earnings |  | 38,489 |  | 56,749
Accounting Standards Update 2017-07 [Member] | Effect Of [Member] |  |  |  |
Costs and expenses: |  |  |  |
Cost of goods sold |  | 828 |  | 1,671
Selling, general and administrative expenses |  | 269 |  | 452
Interest expense |  | 2,136 |  | 4,258
Other expense (income), net |  | $ (3,233) |  | $ (6,381)

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