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Business segment information (Details 2) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
--- | --- | --- | --- | ---
Interest-earning assets - business segment | $ 6,743,769 | [1],[2] | $ 6,380,057 | [1],[2] | $ 5,100,791 | [1],[2] |
Allowance for loan losses | (72,976) |  | (88,547) |  | (78,615) |  | (73,789)
Customers' liabilities under acceptances | 1,157 |  | 1,110 |  | 27,213 |  |
Premises and equipment | 12,808 |  | 6,673 |  | 6,532 |  |
Accrued interest receivable | 37,819 |  | 38,168 |  | 31,110 |  |
Derivative financial instruments used for hedging - receivable | 19,239 | [3] | 4,159 | [3] | 2,103 |  |
Other assets | 14,580 |  | 18,412 |  | 10,953 |  |
Total assets | $ 6,756,396 |  | $ 6,360,032 |  | $ 5,100,087 |  |
[1] | Includes selected deposits placed, and loans, net of unearned income and deferred loan fees.
[2] | Includes cash and due from banks, interest-bearing deposits with banks, securities available for sale and held to maturity, trading securities and the balance of the Investment Fund.
[3] | The fair value of assets and liabilities is reported within the derivative financial instruments used for hedging - receivable and payable lines in the consolidated balance sheets, respectively.

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