Quarterly report pursuant to sections 13 or 15(d)

Segment Information (Parenthetical) (Detail)

v2.3.0.11
Segment Information (Parenthetical) (Detail) (USD $)
In Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2012
Segment Reporting Information [Line Items]    
Change in fair value of contingent consideration $ 647 $ 6,202