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Quarterly Financial Data (Unaudited) | 12 Months Ended
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Oct. 31, 2016
Quarterly Financial Information Disclosure [Abstract] |
Quarterly Financial Data (Unaudited) | Note 18 — Quarterly financial data (unaudited)
|  | First |  |  | Second |  |  | Third |  |  | Fourth |
2016: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  | $ | 372,220 |  |  | $ | 437,592 |  |  | $ | 489,899 |  |  | $ | 509,283 |
Gross margin |  |  | 196,907 |  |  |  | 248,405 |  |  |  | 273,220 |  |  |  | 274,967 |
Net income |  |  | 41,161 |  |  |  | 70,601 |  |  |  | 84,214 |  |  |  | 75,867 |
Earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 0.72 |  |  |  | 1.24 |  |  |  | 1.48 |  |  |  | 1.33 |
Diluted |  |  | 0.72 |  |  |  | 1.23 |  |  |  | 1.46 |  |  |  | 1.31 |
2015: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales |  | $ | 379,008 |  |  | $ | 400,727 |  |  | $ | 462,731 |  |  | $ | 446,200 |
Gross margin |  |  | 208,721 |  |  |  | 221,890 |  |  |  | 248,492 |  |  |  | 234,861 |
Net income |  |  | 42,885 |  |  |  | 49,214 |  |  |  | 69,388 |  |  |  | 49,624 |
Earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 0.69 |  |  |  | 0.81 |  |  |  | 1.15 |  |  |  | 0.84 |
Diluted |  |  | 0.69 |  |  |  | 0.80 |  |  |  | 1.14 |  |  |  | 0.84 |
The sum of the per-share amounts for the four quarters may not always equal the annual per-share amounts due to differences in the average number of shares outstanding during the respective periods. During the fourth quarter of 2016, we recorded pre-tax severance and restructuring costs of $6,411. During the third quarter of 2016, we recorded pre-tax severance and restructuring costs of $1,714 and we recorded other expense of $2,722 related to the reversal of an indemnification asset resulting from the effective settlement of a tax exam. Additionally, our income tax provision for the third quarter included a discrete tax benefit of $1,651 related to the effective settlement of a tax exam. During the second quarter of 2016, we recorded pre-tax severance and restructuring costs of $1,633. Additionally, we recorded other income of $800 related to a favorable litigation settlement and a $1,192 favorable adjustment to unrecognized tax benefits related to the effective settlement of a tax exam. Furthermore, our income tax provision for the second quarter included a discrete tax benedit of $1,136 related to the effective settlement of a tax exam. During the first quarter of 2016, we recorded pre-tax severance and restructuring costs of $1,017. On December 18, 2015, the Protecting Americans from Tax Hikes Act of 2015 was enacted which retroactively reinstated the Federal Research and Development Tax Credit (Federal R&D Tax Credit) as of January 1, 2015, and made it permanent. As a result, our income tax provision for the three months ended January 31, 2016 includes a discrete tax benefit of $2,025 primarily related to 2015. Additionally, our income tax provision for the first quarter included a discrete tax benefit of $6,184 related to dividends paid from previously taxed foreign earnings. During the fourth quarter of 2015, we recorded pre-tax severance and restructuring costs of $9,092. Additionally, we recorded other income of $1,608 related to a favorable litigation settlement. During the third quarter of 2015, we recorded pre-tax severance and restructuring costs of $2,319. During the first quarter of 2015, we recorded a pre-tax loss of $1,572 related to a pension settlement. On December 19, 2014, the Tax Increase Prevention Act of 2014 was enacted which retroactively reinstated the Federal R&D Tax Credit from January 1, 2014 to December 31, 2014 and extended certain other tax provisions. As a result, our income tax provision for the first quarter of 2015 included a discrete tax benefit of $1,786 primarily related to 2014.

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68076893&loc=d3e1570-108306 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e765-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305 + Details
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