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CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) [Abstract] |  |  |  |
Net sales | $ 264,162 | $ 275,975 | $ 764,996 | $ 756,561
Cost of sales | 184,081 | 198,167 | 541,291 | 554,859
Gross profit | 80,081 | 77,808 | 223,705 | 201,702
Selling, general and administrative expenses | 50,615 | 50,937 | 150,813 | 142,322
Restructuring and integration expenses | 1,913 | 642 | 2,531 | 779
Other income, net | 324 | 433 | 766 | 454
Operating income | 27,877 | 26,662 | 71,127 | 59,055
Other non-operating income (expense), net | 233 | 0 | (27) | (66)
Interest expense | 403 | 702 | 1,621 | 2,257
Earnings from continuing operations before taxes | 27,707 | 25,960 | 69,479 | 56,732
Provision for income taxes | 10,021 | 8,516 | 25,827 | 20,073
Earnings from continuing operations | 17,686 | 17,444 | 43,652 | 36,659
Loss from discontinued operations, net of income taxes | (389) | (604) | (1,138) | (1,221)
Net earnings | $ 17,297 | $ 16,840 | $ 42,514 | $ 35,438
Net earnings per common share - Basic: |  |  |  |
Earnings from continuing operations (in dollars per share) | $ 0.77 | $ 0.77 | $ 1.90 | $ 1.61
Discontinued operations (in dollars per share) | $ (0.02) | $ (0.03) | $ (0.05) | $ (0.06)
Net earnings per common share - Basic (in dollars per share) | $ 0.75 | $ 0.74 | $ 1.85 | $ 1.55
Net earnings per common share - Diluted: |  |  |  |
Earnings from continuing operations (in dollars per share) | $ 0.76 | $ 0.76 | $ 1.88 | $ 1.59
Discontinued operations (in dollars per share) | $ (0.02) | $ (0.02) | $ (0.05) | $ (0.05)
Net earnings per common share - Diluted (in dollars per share) | $ 0.74 | $ 0.74 | $ 1.83 | $ 1.54
Dividends declared per share (in dollars per share) | $ 0.11 | $ 0.09 | $ 0.33 | $ 0.27
Average number of common shares (in shares) | 22,999,832 | 22,691,878 | 22,945,424 | 22,810,238
Average number of common shares and dilutive common shares (in shares) | 23,239,009 | 22,877,635 | 23,179,187 | 22,999,244

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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 4 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6386349&loc=d3e3636-108311 + Details
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1505-109256 + Details
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1448-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Weighted-Average Number of Common Shares Outstanding -URI http://asc.fasb.org/extlink&oid=6528421 + Details
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