Quarterly report pursuant to Section 13 or 15(d)

Change in Carrying Amount of Goodwill (Detail)

v2.4.0.8
Change in Carrying Amount of Goodwill (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Goodwill [Line Items]  
Beginning balance $ 134,025
Goodwill acquired 5,601
Other 40
Ending balance $ 139,666