Quarterly report pursuant to sections 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

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Commitments and Contingencies - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
1 Months Ended 9 Months Ended 9 Months Ended 1 Months Ended 9 Months Ended
Jul. 16, 2012
Sep. 30, 2012
LegalMatter
Mar. 31, 2011
Sep. 30, 2012
Investacorp Inc
Aug. 31, 2012
Compensatory damages
Jan. 31, 2011
Compensatory damages
Customer
Sep. 30, 2012
Pending Litigation
LegalMatter
Loss Contingencies [Line Items]              
Damages sought by plaintiff       $ 242 $ 3,900 $ 442 $ 730
Former clients of filed an arbitration claim           2  
Number of arbitration claims settled   8          
Number of remaining arbitration claims             3
Total investment amount     12,000        
Award against Triad 260            
Accrued Liabilities   $ 34