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Loans Receivable, net - Loans Considered to be Impaired (Parenthetical) (Detail) (USD $)
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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SBA 7(a) Loans [Member]
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| Financing Receivable, Impaired [Line Items] | |||
| Unpaid principal balance of our impaired SBA 7(a) loans (excluding the government guaranteed portion) | $ 150,000 | $ 362,000 | $ 593,000 |
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Commercial Loan [Member]
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| Financing Receivable, Impaired [Line Items] | |||
| Unpaid principal balance of our impaired commercial mortgage loans | $ 8,534,000 | $ 12,704,000 | $ 7,940,000 |