Quarterly report pursuant to Section 13 or 15(d)

Goodwill - Summary of Changes to Carrying Amount of Goodwill (Detail)

v3.3.0.814
Goodwill - Summary of Changes to Carrying Amount of Goodwill (Detail) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2015
Dec. 31, 2014
Goodwill [Line Items]    
Beginning, Gross balance $ 37,423 $ 37,446
Beginning, Accumulated impairment losses (17,415) (17,415)
Beginning, Net balance 20,008 20,031
Purchase price adjustments from earnouts   (23)
Ending, Gross balance 42,101 37,423
Ending, Accumulated impairment losses (17,415) (17,415)
Ending, Net balance 24,686 $ 20,008
Jamison    
Goodwill [Line Items]    
Goodwill, Acquisition 4,678  
Ending, Net balance $ 4,678