Commitments And Contingencies (Tables)

3 Months Ended

Mar. 31, 2012

Commitments And Contingencies [Abstract]

Financial Instruments With Off-Balance-Sheet Risk

	March 31,		December 31,
	2012		2011
Commitments to extend credit	$	5,386,634	$	5,147,363
Standby letters of credit		205,692		235,903
Deferred standby letter of credit fees		1,379		1,488