Annual report pursuant to Section 13 and 15(d)

Subsequent Events (Detail)

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Subsequent Events (Detail) (Subsequent Event, PDI Ninth House, USD $)
In Millions, unless otherwise specified
1 Months Ended
Jun. 25, 2013
Subsequent Event | PDI Ninth House
 
Subsequent Event [Line Items]  
Acquisition, contingent consideration $ 15.0