(Tables)

12 Months Ended

Dec. 31, 2011

Commitments and Contingencies Disclosure [Abstract]

Summary of Outstanding Commitments to Extend Credit and Letters of Credit

The following table presents the Corporation’s commitments to extend credit and letters of credit:

	2011		2010
	(in thousands)
Commercial mortgage and construction	$	275,308	$	333,060
Home equity	1,019,470		946,637
Commercial and other	2,508,754		2,501,127
Total commitments to extend credit	$	3,803,532	$	3,780,824
Standby letters of credit	$	444,019	$	489,097
Commercial letters of credit	31,557		31,388
Total letters of credit	$	475,576	$	520,485