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Interim Consolidated Financial Statements - Revised Consolidated Financial Statements (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Cash flows from operating activities: |  |  |  |
Net income | $ 3,043 | $ 2,509 | $ 7,266 | $ 10,863
Prepaid expenses and other current assets |  |  | (255) | 3,609
Net cash provided by operating activities |  |  | 27,851 | 32,352
Income tax provision | 2,009 | 1,739 | 4,981 | 6,982
Net income | 3,043 | 2,509 | 7,266 | 10,863
Basic income per common share | $ 0.17 | $ 0.12 | $ 0.38 | $ 0.51
Diluted income per common share | $ 0.16 | $ 0.12 | $ 0.38 | $ 0.50
As Previously Reported [Member] |  |  |  |
Cash flows from operating activities: |  |  |  |
Net income |  | 2,435 |  | 10,789
Prepaid expenses and other current assets |  |  |  | 3,683
Net cash provided by operating activities |  |  |  | 32,352
Income tax provision |  | 1,813 |  | 7,056
Net income |  | 2,435 |  | 10,789
Basic income per common share |  | $ 0.12 |  | $ 0.51
Diluted income per common share |  | $ 0.12 |  | $ 0.50
Adjustments [Member] |  |  |  |
Cash flows from operating activities: |  |  |  |
Net income |  | 74 |  | 74
Prepaid expenses and other current assets |  |  |  | (74)
Income tax provision |  | (74) |  | (74)
Net income |  | $ 74 |  | $ 74

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