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Summary of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified | 9 Months Ended |
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Sep. 30, 2012 | Jul. 01, 2012
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value [Abstract] |  |
Servicing assets and servicing liabilities at fair value, cumulative effect of change in accounting principle, gross | $ 459,890 |
Servicing assets and servicing liabilities at fair value, cumulative effect of change in accounting principle, net | $ 281,868 |
Special stock dividend to common shareholders paid |  | 4.00%

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- Definition Servicing Assets and Liability at Fair Value Changes in Fair Value Resulting From Changes in Accounting Principle Gross + References No definition available. + Details
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- Definition Servicing Assets and Liability at Fair Value Changes in Fair Value Resulting From Changes in Accounting Principle Net + References No definition available. + Details
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