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Acquisitions - Information of Company's Results of Operations (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2013
Business Acquisition Pro Forma Information [Abstract] |  |
Net sales | $ 67,729 | $ 130,357
Net income | $ 3,630 | $ 5,555
Earnings per share: |  |
Basic | $ 0.14 | $ 0.22
Diluted | $ 0.14 | $ 0.21

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