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Selected Quarterly Financial Data (Unaudited) | 12 Months Ended
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Dec. 31, 2022
Quarterly Financial Information Disclosure [Abstract] |
Selected Quarterly Financial Data (Unaudited) | Selected Quarterly Financial Data (Unaudited): The following is a summary of the unaudited quarterly results of operations for the years ended December 31, 2022 and 2021 (in thousands, except per share data):
| 2022 Quarter Ended
| March 31 |  | June 30 |  | September 30 |  | December 31
Net sales | $ | 238,947 |  |  | $ | 253,216 |  |  | $ | 274,495 |  |  | $ | 280,557 |
Gross profit | 140,962 |  |  | 146,608 |  |  | 156,720 |  |  | 159,935 |
Income before taxes | 25,720 |  |  | 28,668 |  |  | 32,609 |  |  | 32,504 |
Net income | 19,361 |  |  | 21,708 |  |  | 24,551 |  |  | 23,738 |
Basic net earnings per share: |  |  |  |  |  |  |
Common | 1.14 |  |  | 1.31 |  |  | 1.51 |  |  | 1.48 |
Class A Common | 1.08 |  |  | 1.25 |  |  | 1.43 |  |  | 1.40 |
Diluted net earnings per share: |  |  |  |  |  |  |
Common | 1.11 |  |  | 1.27 |  |  | 1.46 |  |  | 1.42 |
Class A Common | 1.05 |  |  | 1.22 |  |  | 1.40 |  |  | 1.39 |
| 2021 Quarter Ended
| March 31 |  | June 30 |  | September 30 |  | December 31
Net sales | $ | 236,491 |  |  | $ | 249,989 |  |  | $ | 260,378 |  |  | $ | 265,940 |
Gross profit | 135,034 |  |  | 141,501 |  |  | 148,003 |  |  | 150,087 |
Income before taxes | 25,364 |  |  | 29,169 |  |  | 31,903 |  |  | 32,099 |
Net income | 19,406 |  |  | 22,858 |  |  | 24,233 |  |  | 24,306 |
Basic net earnings per share: |  |  |  |  |  |  |
Common | 1.07 |  |  | 1.25 |  |  | 1.35 |  |  | 1.39 |
Class A Common | 1.00 |  |  | 1.18 |  |  | 1.28 |  |  | 1.31 |
Diluted net earnings per share: |  |  |  |  |  |  |
Common | 1.04 |  |  | 1.21 |  |  | 1.31 |  |  | 1.35 |
Class A Common | 0.98 |  |  | 1.16 |  |  | 1.25 |  |  | 1.33 |
Because of rounding the amounts will not necessarily add to the totals computed for the year. Also because of rounding and the use of the two-class method in calculating per share data, the quarterly per share data will not necessarily add to the annual totals.

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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 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=124502072&loc=SL124452896-108306 + Details
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