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Debt Obligations - Debt Obligations (Parenthetical) (Detail)
Dec. 31, 2013
Dec. 31, 2012
Minimum [Member]
   
Debt Obligations [Line Items]    
Annual Interest Rate 6.00% 6.00%
Maximum [Member]
   
Debt Obligations [Line Items]    
Annual Interest Rate 7.30% 7.30%