Loans (Changes In Allowance For Loan And Lease Losses By Loan Category) (Details) - USD ($) $ in Thousands		9 Months Ended			12 Months Ended
		Sep. 30, 2021		Sep. 30, 2020	Dec. 31, 2020
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance		$ 16,082		$ 10,238	$ 10,238
CECL adjustment				2,637	2,637
Charge-offs		(1,192)		(3,528)	(3,593)
Recoveries		77		584	673
Provision (credit)	[1]	1,192		5,796	6,127
Ending balance		16,159		15,727	16,082
Ending balance: Individually evaluated for expected credit loss		1,812		2,897	3,177
Ending balance: Collectively evaluated for expected credit loss		14,347		12,830	12,905
Loans [Abstract]
Loans: Ending Balance	[2]	3,136,662		2,488,760	2,652,323
Ending balance: Individually evaluated for impairment		6,880		12,819	12,755
Ending balance: Collectively evaluated for impairment		3,129,782		2,475,941	2,639,568
SBL Non Real Estate [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance		5,060		4,985	4,985
CECL adjustment				(220)	(220)
Charge-offs		(896)		(1,350)	(1,350)
Recoveries		18		82	103
Provision (credit)	[1]	1,196		1,304	1,542
Ending balance		5,378		4,801	5,060
Ending balance: Individually evaluated for expected credit loss		1,163		1,818	2,129
Ending balance: Collectively evaluated for expected credit loss		4,215		2,983	2,931
Loans [Abstract]
Loans: Ending Balance	[2]	171,845		293,488	255,318
Ending balance: Individually evaluated for impairment		2,233		3,220	3,431
Ending balance: Collectively evaluated for impairment		169,612		290,268	251,887
SBL Commercial Mortgage [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance		3,315		1,472	1,472
CECL adjustment				537	537
Charge-offs		(23)
Recoveries		9
Provision (credit)	[1]	(506)		1,543	1,306
Ending balance		2,795		3,552	3,315
Ending balance: Individually evaluated for expected credit loss		510		1,010	1,010
Ending balance: Collectively evaluated for expected credit loss		2,285		2,542	2,305
Loans [Abstract]
Loans: Ending Balance	[2]	367,272		270,264	300,817
Ending balance: Individually evaluated for impairment		3,167		7,517	7,305
Ending balance: Collectively evaluated for impairment		364,105		262,747	293,512
SBL Construction [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance		328		432	432
CECL adjustment				139	139
Provision (credit)	[1]	42		(148)	(243)
Ending balance		370		423	328
Ending balance: Individually evaluated for expected credit loss		34		26	34
Ending balance: Collectively evaluated for expected credit loss		336		397	294
Loans [Abstract]
Loans: Ending Balance	[2]	23,117		27,169	20,273
Ending balance: Individually evaluated for impairment		711		711	711
Ending balance: Collectively evaluated for impairment		22,406		26,458	19,562
Direct Lease Financing [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance		6,043		2,426	2,426
CECL adjustment				2,362	2,362
Charge-offs		(248)		(2,178)	(2,243)
Recoveries		50		502	570
Provision (credit)	[1]	(208)		2,735	2,928
Ending balance		5,637		5,847	6,043
Ending balance: Individually evaluated for expected credit loss		91		43	4
Ending balance: Collectively evaluated for expected credit loss		5,546		5,804	6,039
Loans [Abstract]
Loans: Ending Balance	[2]	514,068		430,675	462,182
Ending balance: Individually evaluated for impairment		430		804	751
Ending balance: Collectively evaluated for impairment		513,638		429,871	461,431
SBLOC/IBLOC [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance		775		553	553
CECL adjustment				(41)	(41)
Charge-offs		(15)
Provision (credit)	[1]	157		202	263
Ending balance		917		714	775
Ending balance: Collectively evaluated for expected credit loss		917		714	775
Loans [Abstract]
Loans: Ending Balance	[2]	1,834,523		1,428,253	1,550,086
Ending balance: Collectively evaluated for impairment		1,834,523		1,428,253	1,550,086
Advisor Financing [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance		362
Charge-offs
Recoveries
Provision (credit)	[1]	247		199	362
Ending balance		609		199	362
Ending balance: Individually evaluated for expected credit loss
Ending balance: Collectively evaluated for expected credit loss		609		199	362
Loans [Abstract]
Loans: Ending Balance	[2]	81,143		26,600	48,282
Ending balance: Individually evaluated for impairment
Ending balance: Collectively evaluated for impairment		81,143		26,600	48,282
Real Estate Bridge Lending [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Provision (credit)	[1]	245
Ending balance		245
Ending balance: Collectively evaluated for expected credit loss		245
Loans [Abstract]
Loans: Ending Balance	[2]	128,699
Ending balance: Collectively evaluated for impairment		128,699
Other Loans [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance		199		52	52
CECL adjustment				178	178
Charge-offs		(10)
Provision (credit)	[1]	19		(39)	(31)
Ending balance		208	[3]	191	199
Ending balance: Individually evaluated for expected credit loss		14
Ending balance: Collectively evaluated for expected credit loss		194		191	199
Loans [Abstract]
Loans: Ending Balance	[2]	4,917		6,003	6,426
Ending balance: Individually evaluated for impairment		339		567	557
Ending balance: Collectively evaluated for impairment		4,578		5,436	5,869
Unallocated [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance				318	318
CECL adjustment				(318)	(318)
Loans [Abstract]
Loans: Ending Balance	[2]	11,078		6,308	8,939
Ending balance: Collectively evaluated for impairment		$ 11,078		$ 6,308	$ 8,939

[1] The amount shown as the provision for the period, reflects the provision on credit losses for loans, while the income statement provision for credit losses includes the provision for unfunded commitments.

[2] The ending balance for loans in the unallocated column represents deferred costs and fees.

[3] Included in Other loans are $25.0 million of SBA loans purchased for CRA purposes as of September 30, 2021. These loans are classified as SBL in the Company’s loan table which classify loans by type, as opposed to risk characteristics.