| Schedule of changes in carrying amount of goodwill |
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As of December 31 |
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2012 |
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2013 |
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Balance at the beginning of the year |
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$ |
37,348 |
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$ |
102,659 |
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Goodwill acquired in business acquisitions |
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|
64,785 |
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— |
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Foreign currency translation adjustments |
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526 |
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(437 |
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Balance at the end of the year |
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$ |
102,659 |
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$ |
102,222 |
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