Borrowings (Long-Term Borrowings) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2011
Year End Balance	511,817
Federal Home Loan Bank Advances [Member] \| Subsidiary Bank [Member]
Year End Balance	460
Federal Home Loan Bank Advances Two [Member]
Maturity Date	2012
Year End Weighted Rate	4.60%
Federal Home Loan Bank Advances Three [Member]
Maturity Date, Start	2013
Maturity Date, End	2016
Year End Weighted Rate	4.90%
Year End Balance	3,842
Federal Home Loan Bank Advances Four [Member]
Maturity Date	2017
Year End Weighted Rate	3.50%
Year End Balance	100,000
Structured Repurchase Agreements [Member] \| Subsidiary Bank [Member]
Year End Weighted Rate	0.00%
Year End Balance	400,000
Structured Note Payable [Member] \| Private Equity Subsidiary [Member]
Maturity Date	2012
Year End Weighted Rate	0.00%
Year End Balance	7,515
Structured Repurchase Agreement [Member] \| Subsidiary Bank [Member]
Maturity Date, Start	2013
Maturity Date, End	2014

When presenting a range of maturity dates, the latest date when the outstanding debt instruments are required to be repaid. May be presented in a variety of ways (for example: year only, month and year, day, month and year, and number of years).

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When presenting a range of maturity dates, the earliest date when the outstanding debt instruments are required to be repaid. May be presented in a variety of ways (for example: year only, month and year, day, month and year, and number of years).

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- Definition

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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