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Consolidated Statements of Income (Unaudited) (USD $) In Millions, except Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Revenue: |  |  |  |
Finance charges | $ 158.0 | $ 148.7 | $ 468.7 | $ 439.1
Premiums earned | 12.7 | 13.1 | 39.5 | 38.0
Other income | 11.0 | 10.9 | 30.2 | 29.7
Total revenue | 181.7 | 172.7 | 538.4 | 506.8
Costs and expenses: |  |  |  |
Salaries and wages | 22.0 | 20.1 | 72.0 | 65.1
General and administrative | 8.7 | 8.7 | 25.4 | 24.9
Sales and marketing | 8.7 | 8.5 | 27.1 | 26.0
Provision for credit losses | 4.1 | 6.1 | 13.4 | 17.3
Interest | 13.5 | 16.1 | 42.8 | 48.3
Provision for claims | 9.4 | 11.0 | 31.4 | 30.5
Loss on extinguishment of debt | 0 | 0 | 21.8 | 0
Total costs and expenses | 66.4 | 70.5 | 233.9 | 212.1
Income before provision for income taxes | 115.3 | 102.2 | 304.5 | 294.7
Provision for income taxes | 41.3 | 37.1 | 111.3 | 107.5
Net income | $ 74.0 | $ 65.1 | $ 193.2 | $ 187.2
Net income per share: |  |  |  |
Basic (in usd per share) | $ 3.38 | $ 2.75 | $ 8.49 | $ 7.80
Diluted (in usd per share) | $ 3.38 | $ 2.75 | $ 8.48 | $ 7.78
Weighted average shares outstanding: |  |  |  |
Basic (in shares) | 21,888,591 | 23,672,635 | 22,750,868 | 23,989,845
Diluted (in shares) | 21,895,222 | 23,708,043 | 22,776,197 | 24,047,443

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