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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per 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 |  |  |  |
REVENUE | $ 349,989 | $ 335,241 | $ 1,026,932 | $ 1,015,315
COST OF SERVICES | 282,968 | 279,720 | 848,477 | 862,767
Gross profit | 67,021 | 55,521 | 178,455 | 152,548
SELLING, GENERAL AND ADMINISTRATIVE EXPENSES | 49,404 | 45,853 | 141,623 | 138,781
GAIN ON SALE OF ASSETS | (117) | (99) | (367) | (438)
Operating income | 17,734 | 9,767 | 37,199 | 14,205
OTHER INCOME (EXPENSE): |  |  |  |
Interest income | 5 | 13 | 19 | 21
Interest expense | (347) | (406) | (1,032) | (1,231)
Changes in the fair value of contingent earn-out obligations | 750 | (38) | 696 | (105)
Other | 83 | 13 | 184 | 82
Other income (expense) | 491 | (418) | (133) | (1,233)
INCOME BEFORE INCOME TAXES | 18,225 | 9,349 | 37,066 | 12,972
INCOME TAX EXPENSE | 6,588 | 3,926 | 14,366 | 6,031
INCOME FROM CONTINUING OPERATIONS | 11,637 | 5,423 | 22,700 | 6,941
Loss from discontinued operations, net of income tax expense (benefit) of $(18), $77, $(57) and $37 | (25) | (98) | (79) | (237)
NET INCOME INCLUDING NONCONTROLLING INTERESTS | 11,612 | 5,325 | 22,621 | 6,704
Less: Net income (loss) attributable to noncontrolling interests | 233 | (348) | 948 | (2,408)
NET INCOME ATTRIBUTABLE TO COMFORT SYSTEMS USA, INC. | $ 11,379 | $ 5,673 | $ 21,673 | $ 9,112
Basic- |  |  |  |
Income from continuing operations (in dollars per share) | $ 0.31 | $ 0.15 | $ 0.58 | $ 0.25
Net income (in dollars per share) | $ 0.31 | $ 0.15 | $ 0.58 | $ 0.25
Diluted- |  |  |  |
Income from continuing operations (in dollars per share) | $ 0.30 | $ 0.15 | $ 0.58 | $ 0.25
Loss from discontinued operations (in dollars per share) |  |  |  | $ (0.01)
Net income (in dollars per share) | $ 0.30 | $ 0.15 | $ 0.58 | $ 0.24
SHARES USED IN COMPUTING INCOME (LOSS) PER SHARE: |  |  |  |
Basic (in shares) | 37,293 | 37,155 | 37,184 | 37,126
Diluted (in shares) | 37,631 | 37,332 | 37,444 | 37,265
DIVIDENDS PER SHARE (in dollars per share) | $ 0.055 | $ 0.05 | $ 0.155 | $ 0.15

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + 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 210.5-03.1) -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 1 -Article 5 + Details
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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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