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Unaudited Supplemental Pro Forma Information (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Business Combination, Separately Recognized Transactions [Line Items] |  |  |  |
Total revenue | $ 17,707 | $ 19,047 | $ 35,659 | $ 37,343
Net income | $ 3,818 | $ 4,394 | $ 7,996 | $ 6,373
Earnings per share: |  |  |  |
Basic | $ 0.12 | $ 0.14 | $ 0.25 | $ 0.20
Diluted | $ 0.12 | $ 0.14 | $ 0.24 | $ 0.20

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