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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
CONSOLIDATED STATEMENTS OF OPERATIONS |  |  |
Net sales revenue | $ 378,096 | $ 367,468 | $ 367,813
Cost of sales | (94,814) | (93,324) | (89,409)
Gross profit | 283,282 | 274,144 | 278,404
Operating expenses: |  |  |
Volume incentives | 138,482 | 133,267 | 133,883
Selling, general and administrative | 120,743 | 106,861 | 109,606
Contract termination costs |  |  | 14,750
Operating income | 24,057 | 34,016 | 20,165
Other income: |  |  |
Interest and other income, net | 573 | 1,368 | 1,470
Interest expense | (231) | (178) | (89)
Foreign exchange gains, net | 1,254 | 290 | 466
Other income (expense), net | 1,596 | 1,480 | 1,847
Income before provision for income taxes | 25,653 | 35,496 | 22,012
Provision for income taxes | 8,044 | 10,116 | 4,411
Net income | $ 17,609 | $ 25,380 | $ 17,601
Basic: |  |  |
Net income (in dollars per share) | $ 1.10 | $ 1.62 | $ 1.13
Diluted: |  |  |
Net income (in dollars per share) | $ 1.07 | $ 1.59 | $ 1.12
Weighted average basic common shares outstanding (in shares) | 15,997 | 15,648 | 15,550
Weighted average diluted common shares outstanding (in shares) | 16,390 | 15,987 | 15,695
Dividends declared per common share (in dollars per share) | $ 1.90 | $ 0.15 |

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