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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2012
Cash Flows as Previously Reported and as Changed | The following table presents the University’s consolidated cash flows as previously reported and as changed for the years ended December 31, 2011 and 2010:
|  | December 31, |  |  | December 31, |
|  | 2011 |  |  | 2010 |  |  | 2011 |  |  | 2010 |
|  | As Reported |  |  | As Reported |  |  | As Changed |  |  | As Changed |
Cash flows provided by operating activities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash and cash equivalents |  |  | — |  |  |  | — |  |  |  | (9,137 | ) |  |  | (43,706 | )
Net cash provided by operating activities |  |  | 97,099 |  |  |  | 84,104 |  |  |  | 87,962 |  |  |  | 40,398 |
Cash flows used in investing activities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash and cash equivalents |  |  | (3,732 | ) |  |  | (49,666 | ) |  |  | — |  |  |  | — |
Restricted funds held for derivative collateral and legal matters |  |  | — |  |  |  | — |  |  |  | 5,405 |  |  |  | (5,960 | )
Net cash used in investing activities |  |  | (84,277 | ) |  |  | (111,806 | ) |  |  | (75,140 | ) |  |  | (68,100 | )
Interest Cost Capitalized and Incurred | Interest cost capitalized and incurred in the years ended December 31, 2012, 2011, and 2010 are as follows:
|  | Year Ended December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Interest incurred |  | $ | 1,064 |  |  | $ | 1,233 |  |  | $ | 1,283 |
Interest capitalized |  |  | 365 |  |  |  | 513 |  |  |  | 394 |
Interest expense |  | $ | 699 |  |  | $ | 720 |  |  | $ | 889 |

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