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Schedule of Changes in Level 3 Contingent Consideration Liability Measured on Recurring Basis (Detail) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2015
Business Acquisition, Contingent Consideration [Line Items] |  |
Beginning balance |  | $ 3,603
Payment |  | (3,700)
Ending balance | $ 3,603 |
Level 3 |  |
Business Acquisition, Contingent Consideration [Line Items] |  |
Beginning balance | 3,434 | 3,603
Accretion | 169 | 97
Payment |  | $ (3,700)
Ending balance | $ 3,603 |

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- Definition Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 + Details
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