Fair Value Measurements (Assets Measured At Fair Value On A Recurring And Nonrecurring Basis) (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2020	Dec. 31, 2019
Assets measured at fair value on a recurring basis [Abstract]
Fair value		$ 1,264,903	$ 1,320,692
Commercial loans, at fair value		1,850
Assets measured on a nonrecurring basis [Abstract]
Collateral dependent loans		12,800
Fair Value, Measurements, Recurring [Member]
Assets measured at fair value on a recurring basis [Abstract]
U.S. Government agency securities		48,377	52,910
Asset-backed securities		238,179	244,349
Obligations of states and political subdivisions		58,458	65,568
Residential mortgage-backed securities		285,701	336,596
Collateralized mortgage obligation securities		169,213	222,727
Commercial mortgage-backed securities		383,281	398,542
Corporate debt securities		81,694
Fair value		1,264,903	1,320,692
Commercial loans, at fair value		1,849,947	1,180,546
Investment in unconsolidated entity		31,783	39,154
Assets held-for-sale from discontinued operations		122,253	140,657
Interest rate swaps, liability		2,465	232
Total assets		3,266,421	2,680,817
Fair Value, Measurements, Nonrecurring [Member]
Assets measured on a nonrecurring basis [Abstract]
Collateral dependent loans	[1]	9,922	3,651
Intangible assets			2,315
Assets nonrecurring			5,966
Significant Other Observable Inputs (Level 2) [Member]
Assets measured at fair value on a recurring basis [Abstract]
Fair value		1,080,555	1,203,359
Interest rate swaps, liability		2,465	232
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		48,377	52,910
Asset-backed securities		238,179	244,349
Obligations of states and political subdivisions		58,458	65,568
Residential mortgage-backed securities		285,701	336,596
Collateralized mortgage obligation securities		169,213	222,727
Commercial mortgage-backed securities		280,627	281,209
Fair value		1,080,555	1,203,359
Interest rate swaps, liability		2,465	232
Total assets		1,078,090	1,203,127
Significant Unobservable Inputs (Level 3) [Member]
Assets measured at fair value on a recurring basis [Abstract]
Corporate debt securities	[2]	75,538
Fair value		184,348	117,333
Commercial loans, at fair value		1,849,947	1,180,546
Investment in unconsolidated entity		31,783	39,154
Assets held-for-sale from discontinued operations	[3]	122,253	140,657
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		102,654	117,333
Corporate debt securities		81,694
Fair value		184,348	117,333
Commercial loans, at fair value		1,849,947	1,180,546
Investment in unconsolidated entity		31,783	39,154
Assets held-for-sale from discontinued operations		122,253	140,657
Total assets		2,188,331	1,477,690
Significant Unobservable Inputs (Level 3) [Member] | Fair Value, Measurements, Nonrecurring [Member]
Assets measured on a nonrecurring basis [Abstract]
Collateral dependent loans	[1]	$ 9,922	3,651
Intangible assets			2,315
Assets nonrecurring			$ 5,966
Minimum [Member]
Assets measured on a nonrecurring basis [Abstract]
Estimated Selling Costs		7.00%
Maximum [Member]
Assets measured on a nonrecurring basis [Abstract]
Estimated Selling Costs		10.00%

[1] The method of valuation approach for the collateral dependent 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.

[2] Corporate debt securities consist of three AAA rated privately placed debt structures backed by investment grade corporate debt each with over 50% credit enhancement. Each of these securities has a coupon of 3 Month LIBOR + 3.00%. Price indications are obtained from a broker/dealer with significant experience in trading and evaluating these securities. Changes in either investor yield requirements for relatively illiquid securities, or credit risk could affect the price indications.

[3] Assets held-for-sale from discontinued operations are valued using discounted cash flow by an independent valuation consultant using loan performance, other credit characteristics and market interest rate comparisons. Changes in those factors could change the valuation.