Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

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Commitments and Contingencies - Additional Information (Detail) (USD $)
1 Months Ended 3 Months Ended 9 Months Ended
Sep. 27, 2012
Sep. 30, 2012
Sep. 30, 2012
Commitment And Contingencies [Line Items]      
Civil monetary penalty $ 0   $ 250,000
Maximum civil monetary penalty for each violation     250,000
OFAC Penalties and fines   $ 625,000 $ 625,000