Fair Value Measurements (Assets Measured At Fair Value On A Recurring And Nonrecurring Basis) (Details) - USD ($) $ in Thousands		Sep. 30, 2019	Dec. 31, 2018
Assets measured at fair value on a recurring basis [Abstract]
Fair value		$ 1,382,437	$ 1,236,324
Assets measured on a nonrecurring basis [Abstract]
Impaired loans - collateral dependent		7,600
Fair Value, Measurements, Recurring [Member]
Assets measured at fair value on a recurring basis [Abstract]
U.S. Government agency securities		54,528	53,362
Asset-backed securities		259,008	188,602
Obligations of states and political subdivisions		68,860	67,986
Residential mortgage-backed securities		352,958	369,741
Collaterized mortgage obligation securities		238,834	262,207
Commercial mortgage-backed securities		408,249	294,426
Fair value		1,382,437	1,236,324
Commercial loans held-for-sale		489,240	688,471
Investment in unconsolidated entity		49,431	59,273
Assets held-for-sale from discontinued operations		162,098	197,831
Interest rate swaps, asset			1,681
Interest rate swaps, liability		790
Total assets		2,082,416	2,183,580
Fair Value, Measurements, Nonrecurring [Member]
Assets measured on a nonrecurring basis [Abstract]
Impaired loans - collateral dependent	[1]	4,075	3,747
Intangible assets		2,698	3,846
Assets nonrecurring		6,773	7,593
Significant Other Observable Inputs (Level 2) [Member]
Assets measured at fair value on a recurring basis [Abstract]
Fair value		1,260,867	1,211,934
Interest rate swaps, asset			1,681
Significant Other Observable Inputs (Level 2) [Member] | Fair Value, Measurements, Recurring [Member]
Assets measured at fair value on a recurring basis [Abstract]
U.S. Government agency securities		54,528	53,362
Asset-backed securities		259,008	188,602
Obligations of states and political subdivisions		68,860	67,986
Residential mortgage-backed securities		352,958	369,741
Collaterized mortgage obligation securities		238,834	262,207
Commercial mortgage-backed securities		286,679	270,036
Fair value		1,260,867	1,211,934
Interest rate swaps, asset			1,681
Interest rate swaps, liability		790
Total assets		1,260,077	1,213,615
Significant Unobservable Inputs (Level 3) [Member]
Assets measured at fair value on a recurring basis [Abstract]
Fair value		121,570	24,390
Commercial loans held-for-sale		489,240	688,471
Investment in unconsolidated entity		49,431	59,273
Assets held-for-sale from discontinued operations		162,098	197,831
Significant Unobservable Inputs (Level 3) [Member] | Fair Value, Measurements, Recurring [Member]
Assets measured at fair value on a recurring basis [Abstract]
Commercial mortgage-backed securities		121,570	24,390
Fair value		121,570	24,390
Commercial loans held-for-sale		489,240	688,471
Investment in unconsolidated entity		49,431	59,273
Assets held-for-sale from discontinued operations		162,098	197,831
Total assets		822,339	969,965
Significant Unobservable Inputs (Level 3) [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets measured on a nonrecurring basis [Abstract]
Impaired loans - collateral dependent	[1]	4,075	3,747
Intangible assets		2,698	3,846
Assets nonrecurring		$ 6,773	$ 7,593

[1] The method of valuation approach for the impaired loans was the market value approach based upon appraisals of the underlying collateral by external appraisers, reduced by 7% to 10% for estimated selling costs. Intangible assets are valued based upon internal analyses.