Fair Value Measurements (Schedule Of Quantitative Inputs And Assumptions For Items Categorized In Level 3 Of The Fair Value Hierarchy) (Detail) (USD $) In Thousands, unless otherwise specified				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Trust Preferred Securities Pooled Issuers [Member] BasisPoint
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	$ 30,055	$ 116,280	$ 32,814	$ 28,490
Discount rate, Range (Weighted Average), minimum				7.18%
Discount rate, Range (Weighted Average), maximum				8.22%
Discount rate, Range (Weighted Average)				8.01%
Credit spread, Range (Weighted Average), minimum (in basis points)				325
Credit spread, Range (Weighted Average), maximum (in basis points)				429
Credit spread, Range (Weighted Average) (in basis points)				408