XML 32 R32.htm IDEA: XBRL DOCUMENT v2.4.0.8
Goodwill - Summary of Changes in Carrying Amount of Goodwill (Detail) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2013
Goodwill [Roll Forward]  
Beginning balance $ 100,188
Goodwill acquired during the period 13,399
Goodwill allocated to specific assets for business acquired in 2012 (2,340)
Write off of goodwill due to sale of business and other (6,013)
Ending balance $ 105,234