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Investment Securities (Schedule of Preferred Security and Associated Ratings) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 281,447	$ 319,147
Available-for-sale Securities, Gross Unrealized Gain (Loss)	7,727	6,960
Available-for-sale Securities, Fair Value	287,471	323,070
Trust Preferred Security [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	19,764
Available-for-sale Securities, Gross Unrealized Gain (Loss)	33
Available-for-sale Securities, Fair Value	19,797
Countrywide Capital IV [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	1,771
Available-for-sale Securities, Gross Unrealized Gain (Loss)	34
Available-for-sale Securities, Fair Value	1,805
Number Of Banks Currently Performing	1
Countrywide Capital IV [Member] | Standard & Poor's, BB+ Rating [Member]
Schedule of Investments [Line Items]
Debt Instrument, Credit Rating	BB+
Countrywide Capital V [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	2,747
Available-for-sale Securities, Gross Unrealized Gain (Loss)	56
Available-for-sale Securities, Fair Value	2,803
Number Of Banks Currently Performing	1
Countrywide Capital V [Member] | Standard & Poor's, BB+ Rating [Member]
Schedule of Investments [Line Items]
Debt Instrument, Credit Rating	BB+
Countrywide Capital V [Member] | Additional Deal Value [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	250
Available-for-sale Securities, Gross Unrealized Gain (Loss)	5
Available-for-sale Securities, Fair Value	255
Number Of Banks Currently Performing	1
Countrywide Capital V [Member] | Additional Deal Value [Member] | Standard & Poor's, BB+ Rating [Member]
Schedule of Investments [Line Items]
Debt Instrument, Credit Rating	BB+
Citigroup Cap IX [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	992
Available-for-sale Securities, Gross Unrealized Gain (Loss)	19
Available-for-sale Securities, Fair Value	1,011
Number Of Banks Currently Performing	1
Citigroup Cap IX [Member] | Standard & Poor's, BB Rating [Member]
Schedule of Investments [Line Items]
Debt Instrument, Credit Rating	BB
Citigroup Cap IX [Member] | Additional Deal Value [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	1,907
Available-for-sale Securities, Gross Unrealized Gain (Loss)	45
Available-for-sale Securities, Fair Value	1,952
Number Of Banks Currently Performing	1
Citigroup Cap IX [Member] | Additional Deal Value [Member] | Standard & Poor's, BB Rating [Member]
Schedule of Investments [Line Items]
Debt Instrument, Credit Rating	BB
Citigroup Cap XI [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	246
Available-for-sale Securities, Gross Unrealized Gain (Loss)	5
Available-for-sale Securities, Fair Value	251
Number Of Banks Currently Performing	1
Citigroup Cap XI [Member] | Standard & Poor's, BB Rating [Member]
Schedule of Investments [Line Items]
Debt Instrument, Credit Rating	BB
Nationsbank Cap Trust III [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	1,574
Available-for-sale Securities, Gross Unrealized Gain (Loss)	(296)
Available-for-sale Securities, Fair Value	1,278
Number Of Banks Currently Performing	1
Nationsbank Cap Trust III [Member] | Standard & Poor's, BB+ Rating [Member]
Schedule of Investments [Line Items]
Debt Instrument, Credit Rating	BB+
Morgan Stanley Cap Trust IV [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	2,500
Available-for-sale Securities, Gross Unrealized Gain (Loss)	6
Available-for-sale Securities, Fair Value	2,506
Number Of Banks Currently Performing	1
Morgan Stanley Cap Trust IV [Member] | Standard & Poor's, BB+ Rating [Member]
Schedule of Investments [Line Items]
Debt Instrument, Credit Rating	BB+
Morgan Stanley Cap Trust IV [Member] | Additional Deal Value [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	1,742
Available-for-sale Securities, Gross Unrealized Gain (Loss)	10
Available-for-sale Securities, Fair Value	1,752
Number Of Banks Currently Performing	1
Morgan Stanley Cap Trust IV [Member] | Additional Deal Value [Member] | Standard & Poor's, BB+ Rating [Member]
Schedule of Investments [Line Items]
Debt Instrument, Credit Rating	BB+
Saturns - GS 2004-04 [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	535
Available-for-sale Securities, Gross Unrealized Gain (Loss)	0
Available-for-sale Securities, Fair Value	535
Number Of Banks Currently Performing	1
Saturns - GS 2004-04 [Member] | Standard & Poor's, BB+ Rating [Member]
Schedule of Investments [Line Items]
Debt Instrument, Credit Rating	BB+
Goldman Sachs [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	1,000
Available-for-sale Securities, Gross Unrealized Gain (Loss)	32
Available-for-sale Securities, Fair Value	1,032
Number Of Banks Currently Performing	1
Goldman Sachs [Member] | Standard & Poor's, BB+ Rating [Member]
Schedule of Investments [Line Items]
Debt Instrument, Credit Rating	BB+
Stifel Financial [Member]
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	4,500
Available-for-sale Securities, Gross Unrealized Gain (Loss)	117
Available-for-sale Securities, Fair Value	$ 4,617
Number Of Banks Currently Performing	1
Stifel Financial [Member] | Standard & Poor's, BB+ Rating [Member]
Schedule of Investments [Line Items]
Debt Instrument, Credit Rating	BBB-

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Number of banks currently performing

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

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Amount of unrealized gain (loss) on investments in debt and equity securities classified as available-for-sale securities.

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-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

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Description of the credit rating indicative of likelihood of repayment of the debt instrument given by a credit rating agency (for example, Standard and Poor's, Moody's, Fitch).

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