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Goodwill - Summary of Changes to Carrying Amount of Goodwill (Detail) (USD $)
In Thousands, unless otherwise specified |
6 Months Ended | 12 Months Ended |
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Jun. 30, 2013
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Dec. 31, 2012
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| Goodwill [Line Items] | ||
| Beginning, Gross balance | $ 33,306 | $ 32,098 |
| Beginning, Accumulated impairment losses | (17,415) | (17,415) |
| Beginning, Net balance | 15,891 | 14,683 |
| Purchase price adjustments from earnouts | 1,061 | |
| Ending, Gross balance | 35,651 | 33,306 |
| Ending, Accumulated impairment losses | (17,415) | (17,415) |
| Ending, Net balance | 18,236 | 15,891 |
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Commodity Advisors [Member]
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| Goodwill [Line Items] | ||
| Goodwill, Acquisition | 147 | |
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Ten-Sixty [Member]
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| Goodwill [Line Items] | ||
| Goodwill, Acquisition | 2,345 | |
| Ending, Net balance | $ 2,345 |
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- Definition
Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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