Derivative Financial Instruments Part 2 (Details) (USD $) In Thousands, unless otherwise specified			3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended						3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2013 Designated as Hedging Instrument [Member]	Jun. 30, 2012 Designated as Hedging Instrument [Member]	Jun. 30, 2013 Designated as Hedging Instrument [Member]	Jun. 30, 2012 Designated as Hedging Instrument [Member]	Jun. 30, 2013 Designated as Hedging Instrument [Member] Mortgage Banking, Net [Member]	Jun. 30, 2012 Designated as Hedging Instrument [Member] Mortgage Banking, Net [Member]	Jun. 30, 2013 Designated as Hedging Instrument [Member] Mortgage Banking, Net [Member]	Jun. 30, 2012 Designated as Hedging Instrument [Member] Mortgage Banking, Net [Member]	Jun. 30, 2013 Designated as Hedging Instrument [Member] Forward Contracts [Member] Other Liabilities [Member]	Dec. 31, 2012 Designated as Hedging Instrument [Member] Forward Contracts [Member] Other Liabilities [Member]	Jun. 30, 2013 Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Other Assets [Member]	Dec. 31, 2012 Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Other Assets [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member] Mortgage Banking, Net [Member]	Jun. 30, 2012 Not Designated as Hedging Instrument [Member] Mortgage Banking, Net [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member] Mortgage Banking, Net [Member]	Jun. 30, 2012 Not Designated as Hedging Instrument [Member] Mortgage Banking, Net [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member] Bankcard and Other Fees [Member]	Jun. 30, 2012 Not Designated as Hedging Instrument [Member] Bankcard and Other Fees [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member] Bankcard and Other Fees [Member]	Jun. 30, 2012 Not Designated as Hedging Instrument [Member] Bankcard and Other Fees [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member] Future Contracts [Member] Other Assets [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Future Contracts [Member] Other Assets [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member] Exchange Traded Purchased Options [Member] Other Assets [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Exchange Traded Purchased Options [Member] Other Assets [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member] OTC Written Options (Rate Locks) [Member] Other Assets [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] OTC Written Options (Rate Locks) [Member] Other Assets [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Other Assets [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Other Assets [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Other Liabilities [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member] Other Liabilities [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member] Credit Risk Participation Agreement [Member] Other Assets [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Credit Risk Participation Agreement [Member] Other Assets [Member]	Jun. 30, 2013 Not Designated as Hedging Instrument [Member] Exchange Traded Written Options [Member] Other Liabilities [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Exchange Traded Written Options [Member] Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative asset	$ 6,342	$ 5,241											$ 2,354	$ 0									$ (2,358)	$ (482)	$ 259	$ 42	$ 347	$ 2,284	$ 3,988	$ 5,241			$ 25	$ 22
Fair value of derivative liability	3,560	5,329									(10,129)	738																			3,560	5,329			633	545
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized							10,933	(3,460)	10,867	(1,067)					(7,935)	8,496	(8,149)	7,030	421	(195)	395	(160)
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net [Abstract]
Amount of gain recognized in other comprehensive (loss) income			1,454	0	1,454	0
Offsetting of Derivative Assets [Abstract]
Gross Amounts of Recognized Assets, Offsetting of Derivative Assets	6,342	5,241											2,354	0									(2,358)	(482)	259	42	347	2,284	3,988	5,241			25	22
Gross Amounts Offset in the Statement of Financial Position, Offsetting of Derivative Assets	0	0
Net Amounts of Assets presented in the Statement of Financial Position, Offsetting of Derivative Assets	6,342	5,241
Financial Instruments, Derivative Assets	(1,114)	0
Cash Collateral Received, Derivative Assets	(1,810)	0
Net Amount, Offsetting of Derivative Assets	3,418	5,241
Offsetting of Derivative Liabilities [Abstract]
Gross Amounts of Recognized Liabilities, Offsetting of Derivative Liabilities	3,560	5,329
Gross Amounts Offset in the Statement of Financial Position, Offsetting of Derivative Liabilities	0	0
Net Amounts of Liabilities presented in the Statement of Financial Position, Offsetting of Derivative Liabilities	3,560	5,329									(10,129)	738																			3,560	5,329			633	545
Financial Instruments, Derivative Liabilities	(1,114)	0
Cash Collateral Posted, Derivative Liabilities	0	(594)
Net Amount, Offsetting of Derivative Liabilities	$ 2,446	$ 4,735