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CONDENSED CONSOLIDATED STATEMENTS OF NET AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Revenues: |  |  |  |
Revenue | $ 198,220 | $ 210,590 | $ 568,520 | $ 584,533
Operating expenses: |  |  |  |
Cost of services | 124,147 | 132,896 | 343,682 | 354,414
Selling, general and administrative expense | 48,091 | 48,659 | 149,845 | 145,792
Depreciation and amortization expense | 1,910 | 1,651 | 5,674 | 4,529
Total operating expenses | 174,148 | 183,206 | 499,201 | 504,735
Operating income | 24,072 | 27,384 | 69,319 | 79,798
Other income (expense), net | 2,573 | 2,127 | 9,067 | 5,060
Interest expense | (329) | (342) | (1,018) | (1,054)
Income before provision for income taxes | 26,316 | 29,169 | 77,368 | 83,804
Provision for income taxes | 7,024 | 8,315 | 21,159 | 22,772
Net income | 19,292 | 20,854 | 56,209 | 61,032
Marketable securities, available-for-sale: |  |  |  |
Change in unrealized gains (losses) | 160 | (115) | 1,874 | (779)
Less: reclassification adjustment for net (gains) losses included in other income (expense), net | (23) | 0 | (41) | 8
Net change, net of tax of $46, $(38), $617 and $(259) for the three and nine months ended September 30, 2019 and 2018, respectively | 137 | (115) | 1,833 | (771)
Foreign currency translation gain (loss), net of tax of $0 for each of the three and nine months ended September 30, 2019 and 2018 | 114 | (29) | (200) | 44
Total other comprehensive income (loss) | 251 | (144) | 1,633 | (727)
Comprehensive income | $ 19,543 | $ 20,710 | $ 57,842 | $ 60,305
Earnings per share: |  |  |  |
Basic | $ 0.49 | $ 0.53 | $ 1.43 | $ 1.56
Diluted | $ 0.49 | $ 0.53 | $ 1.42 | $ 1.55
Weighted average common shares outstanding: |  |  |  |
Basic | 39,441 | 39,191 | 39,383 | 39,147
Diluted | 39,550 | 39,484 | 39,527 | 39,359
Real Estate Brokerage Commissions [Member] |  |  |  |
Revenues: |  |  |  |
Revenue | $ 180,198 | $ 191,980 | $ 513,815 | $ 536,145
Financing Fees [Member] |  |  |  |
Revenues: |  |  |  |
Revenue | 16,013 | 15,947 | 47,487 | 41,234
Other Revenues [Member] |  |  |  |
Revenues: |  |  |  |
Revenue | $ 2,009 | $ 2,663 | $ 7,218 | $ 7,154

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- Definition Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580 + Details
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