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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Net sales | $ 217,513 | $ 209,320 | $ 506,913 | $ 588,455
Cost of goods sold | 95,336 | 97,301 | 225,537 | 269,796
Gross profit | 122,177 | 112,019 | 281,376 | 318,659
Credit service charges | 15 | 19 | 53 | 60
Gross profit and other revenue | 122,192 | 112,038 | 281,429 | 318,719
Expenses: |  |  |  |
Selling, general and administrative | 100,097 | 104,161 | 270,281 | 298,824
Provision for doubtful accounts | 20 | 42 | 56 | 66
Other (income) expense, net | (2,406) | (42) | (34,301) | (323)
Total expenses | 97,711 | 104,161 | 236,036 | 298,567
Income before interest and income taxes | 24,481 | 7,877 | 45,393 | 20,152
Interest expense (income), net | (51) | (292) | (64) | (980)
Income before income taxes | 24,532 | 8,169 | 45,457 | 21,132
Income tax expense | 6,271 | 2,072 | 11,737 | 5,367
Net income | 18,261 | 6,097 | 33,720 | 15,765
Other comprehensive income |  |  |  |
Adjustments related to retirement plans; net of tax expense of $10 and $30 in 2020 and $3 and $9 in 2019 | 30 | 8 | 90 | 25
Comprehensive income | $ 18,291 | $ 6,105 | $ 33,810 | $ 15,790
Class A Common Stock [Member] |  |  |  |
Earnings per share: |  |  |  |
Basic earnings per share (in dollars per share) | $ 0.94 | $ 0.30 | $ 1.71 | $ 0.74
Diluted earnings per share (in dollars per share) | 0.93 | 0.30 | 1.70 | 0.73
Cash dividends per share (in dollars per share) | 0.19 | 0.19 | 0.52 | 0.53
Common Stock [Member] |  |  |  |
Earnings per share: |  |  |  |
Basic earnings per share (in dollars per share) | 0.98 | 0.31 | 1.80 | 0.79
Diluted earnings per share (in dollars per share) | 0.97 | 0.31 | 1.77 | 0.77
Cash dividends per share (in dollars per share) | $ 0.20 | $ 0.20 | $ 0.55 | $ 0.56

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