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CASH AND CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2011
CASH AND CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS |
Composition of cash and cash equivalents |
|  | December 31, |
--- | --- | --- | ---
|  | 2011 |  | 2010 |
|  | (Dollars in thousands) |
Cash and amounts due from banks |  | $ | 761,892 |  | $ | 1,028,929 |
Cash equivalents: |  |  |  |  |  |  |
Money market funds |  |  | 621 |  |  | 15,008 |
Other short-term investments |  |  | 668,672 |  |  | 290,012 |
Total cash and cash equivalents |  | $ | 1,431,185 |  | $ | 1,333,949 |
Schedule of short-term investments |
|  | December 31, |
--- | --- | --- | ---
|  | 2011 |  | 2010 |
|  | (Dollars in thousands) |
Balance at end of year |  | $ | 61,834 |  | $ | 143,560 |
Average balance outstanding during the year |  |  | 107,893 |  |  | 190,923 |
Maximum balance outstanding at any month-end |  |  | 141,627 |  |  | 257,399 |
Weighted average interest rate at end of year |  |  | 1.34 | % |  | 1.45 | %

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