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Unaudited Quarterly Financial Information (Notes) | 12 Months Ended
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Jul. 31, 2020
Quarterly Financial Information Disclosure [Abstract] |
Unaudited Quarterly Financial Information | Unaudited Quarterly Financial Information
|  | Quarters |  |  |  |  |  |  |  |
|  | First |  | Second |  | Third |  | Fourth |  | Total
Fiscal 2019 |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 293,196 |  |  | $ | 282,426 |  |  | $ | 289,745 |  |  | $ | 295,278 |  |  | $ | 1,160,645 |
Gross margin |  | 146,539 |  |  | 139,810 |  |  | 145,749 |  |  | 146,580 |  |  | 578,678 |
Operating income |  | 40,622 |  |  | 36,030 |  |  | 39,621 |  |  | 46,155 |  |  | 162,428 |
Net income |  | 30,637 |  |  | 29,227 |  |  | 34,781 |  |  | 36,613 |  |  | 131,258 |
Net income per Class A Nonvoting Common Share: |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.59 |  |  | $ | 0.56 |  |  | $ | 0.66 |  |  | $ | 0.69 |  |  | $ | 2.50 |
Diluted |  | $ | 0.58 |  |  | $ | 0.55 |  |  | $ | 0.65 |  |  | $ | 0.68 |  |  | $ | 2.46 |
Fiscal 2020 |  |  |  |  |  |  |  |  |  |
Net sales |  | $ | 286,947 |  |  | $ | 276,665 |  |  | $ | 265,943 |  |  | $ | 251,744 |  |  | $ | 1,081,299 |
Gross margin |  | 141,405 |  |  | 139,127 |  |  | 129,527 |  |  | 118,506 |  |  | 528,565 |
Operating income* |  | 40,891 |  |  | 41,244 |  |  | 22,669 |  |  | 33,219 |  |  | 138,023 |
Net income |  | 37,498 |  |  | 33,553 |  |  | 13,633 |  |  | 27,685 |  |  | 112,369 |
Net income per Class A Nonvoting Common Share: |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.71 |  |  | $ | 0.63 |  |  | $ | 0.26 |  |  | $ | 0.53 |  |  | $ | 2.13 |
Diluted |  | $ | 0.70 |  |  | $ | 0.62 |  |  | $ | 0.26 |  |  | $ | 0.53 |  |  | $ | 2.11 |
* In the third quarter of fiscal 2020, the Company recognized before tax impairment charges of $13,821.

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- References No definition available. + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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