Loans (Summary Of Gross Loans Held For Investment By Year Of Origination And Internally Assigned Credit Grade) (Details) - USD ($) $ in Thousands		Mar. 31, 2022		Dec. 31, 2021		Mar. 31, 2021
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		$ 340,329		$ 1,136,523
Fiscal Year Before Latest Fiscal Year		1,072,420		297,650
Two Years Before Latest Fiscal Year		269,750		151,305
Three Years Before Latest Fiscal Year		142,333		90,977
Four Years Before Latest Fiscal Year		84,293		57,753
Prior		178,030		73,389
Revolving loans at amortized cost		2,069,106		1,931,574
Financing Receivable, before Allowance for Credit Loss, Total		4,156,261		3,739,171
Unamortized loan fees and costs		8,037		8,053
Total loans, including unamortized loan fees and costs	[1]	4,164,298		3,747,224		$ 2,827,076
SBL Non Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		1,526		73,490
Fiscal Year Before Latest Fiscal Year		53,799		23,191
Two Years Before Latest Fiscal Year		19,128		8,893
Three Years Before Latest Fiscal Year		8,341		9,672
Four Years Before Latest Fiscal Year		9,284		5,936
Prior		16,942		11,563
Financing Receivable, before Allowance for Credit Loss, Total		109,020		132,745
Total loans, including unamortized loan fees and costs	[1]	122,387		147,722		305,446
SBL Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		27,650		90,129
Fiscal Year Before Latest Fiscal Year		93,399		57,695
Two Years Before Latest Fiscal Year		57,110		77,143
Three Years Before Latest Fiscal Year		76,481		43,820
Four Years Before Latest Fiscal Year		43,139		37,607
Prior		81,581		47,075
Financing Receivable, before Allowance for Credit Loss, Total		379,360		353,469
Total loans, including unamortized loan fees and costs	[1]	385,559		361,171		320,013
SBL Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year				6,869
Fiscal Year Before Latest Fiscal Year		9,119		12,629
Two Years Before Latest Fiscal Year		14,183		1,880
Three Years Before Latest Fiscal Year		2,000		5,111
Four Years Before Latest Fiscal Year		5,419
Prior		710		710
Financing Receivable, before Allowance for Credit Loss, Total		31,431		27,199
Total loans, including unamortized loan fees and costs	[1]	31,432		27,199		20,692
Direct Lease Financing [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		98,458		271,458
Fiscal Year Before Latest Fiscal Year		220,143		160,206
Two Years Before Latest Fiscal Year		136,903		60,308
Three Years Before Latest Fiscal Year		52,616		27,821
Four Years Before Latest Fiscal Year		22,198		8,998
Prior		8,298		2,221
Financing Receivable, before Allowance for Credit Loss, Total		538,616		531,012
Total loans, including unamortized loan fees and costs	[1]	538,616		531,012		484,316
SBLOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Revolving loans at amortized cost		1,160,141		1,141,316
Financing Receivable, before Allowance for Credit Loss, Total		1,160,141		1,141,316
IBLOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Revolving loans at amortized cost		907,092		788,265
Financing Receivable, before Allowance for Credit Loss, Total		907,092		788,265
Advisor Financing [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		33,569		72,106
Fiscal Year Before Latest Fiscal Year		70,697		43,664
Two Years Before Latest Fiscal Year		42,195
Financing Receivable, before Allowance for Credit Loss, Total		146,461		115,770
Total loans, including unamortized loan fees and costs	[1]	146,461		115,770		58,919
Real Estate Bridge Lending [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		179,070		621,702
Fiscal Year Before Latest Fiscal Year		624,407
Financing Receivable, before Allowance for Credit Loss, Total		803,477		621,702
Total loans, including unamortized loan fees and costs	[1]	803,477		621,702
Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		478	[2]	769	[3]
Fiscal Year Before Latest Fiscal Year		434	[2]	265	[3]
Two Years Before Latest Fiscal Year		231	[2]	3,081	[3]
Three Years Before Latest Fiscal Year		2,895	[2]	4,553	[3]
Four Years Before Latest Fiscal Year		4,253	[2]	5,212	[3]
Prior		70,499	[2]	11,820	[3]
Revolving loans at amortized cost		1,873	[2]	1,993	[3]
Financing Receivable, before Allowance for Credit Loss, Total		80,663	[2]	27,693	[3]
Total loans, including unamortized loan fees and costs	[1]	61,096		5,014		$ 6,452
SBA Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, before Allowance for Credit Loss, Total				46,600
SBA Loan PPP [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, before Allowance for Credit Loss, Total		23,600		44,800
SBL CRA [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, before Allowance for Credit Loss, Total		19,000		22,700
Non-Rated [Member] | SBL Non Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year	[4]			39,318
Fiscal Year Before Latest Fiscal Year		20,020	[5]	7,257	[4]
Two Years Before Latest Fiscal Year	[5]	3,626
Financing Receivable, before Allowance for Credit Loss, Total		23,646	[5]	46,575	[4]
Non-Rated [Member] | SBL Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		15,426		10,963
Fiscal Year Before Latest Fiscal Year		2,091
Financing Receivable, before Allowance for Credit Loss, Total		17,517		10,963
Non-Rated [Member] | Direct Lease Financing [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		43,382		56,152
Fiscal Year Before Latest Fiscal Year		41,790		13,271
Two Years Before Latest Fiscal Year		11,682		1,933
Three Years Before Latest Fiscal Year		1,717		1,115
Four Years Before Latest Fiscal Year		877		355
Prior		329		104
Financing Receivable, before Allowance for Credit Loss, Total		99,777		72,930
Non-Rated [Member] | SBLOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Revolving loans at amortized cost		3,724		3,176
Financing Receivable, before Allowance for Credit Loss, Total		3,724		3,176
Non-Rated [Member] | IBLOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Revolving loans at amortized cost		412,878		346,604
Financing Receivable, before Allowance for Credit Loss, Total		412,878		346,604
Non-Rated [Member] | Advisor Financing [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		23,156		38,330
Fiscal Year Before Latest Fiscal Year		969		258
Financing Receivable, before Allowance for Credit Loss, Total		24,125		38,588
Non-Rated [Member] | Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		478		396
Fiscal Year Before Latest Fiscal Year		63		152
Two Years Before Latest Fiscal Year		118
Prior		14,611		216
Revolving loans at amortized cost		601		656
Financing Receivable, before Allowance for Credit Loss, Total		15,871		1,420
Pass [Member] | SBL Non Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		1,526		34,172
Fiscal Year Before Latest Fiscal Year		33,779		15,934
Two Years Before Latest Fiscal Year		15,256		8,794
Three Years Before Latest Fiscal Year		8,242		8,988
Four Years Before Latest Fiscal Year		8,505		5,088
Prior		12,974		9,809
Financing Receivable, before Allowance for Credit Loss, Total		80,282		82,785
Pass [Member] | SBL Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		12,224		79,166
Fiscal Year Before Latest Fiscal Year		91,308		57,554
Two Years Before Latest Fiscal Year		56,969		75,290
Three Years Before Latest Fiscal Year		74,628		43,820
Four Years Before Latest Fiscal Year		43,139		37,607
Prior		80,528		46,016
Financing Receivable, before Allowance for Credit Loss, Total		358,796		339,453
Pass [Member] | SBL Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year				6,869
Fiscal Year Before Latest Fiscal Year		9,119		12,629
Two Years Before Latest Fiscal Year		14,183		1,880
Three Years Before Latest Fiscal Year		2,000		5,111
Four Years Before Latest Fiscal Year		5,419
Financing Receivable, before Allowance for Credit Loss, Total		30,721		26,489
Pass [Member] | Direct Lease Financing [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		54,636		214,780
Fiscal Year Before Latest Fiscal Year		178,087		145,256
Two Years Before Latest Fiscal Year		124,279		58,337
Three Years Before Latest Fiscal Year		50,899		26,662
Four Years Before Latest Fiscal Year		21,301		8,574
Prior		7,929		2,105
Financing Receivable, before Allowance for Credit Loss, Total		437,131		455,714
Pass [Member] | SBLOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Revolving loans at amortized cost		1,156,417		1,138,140
Financing Receivable, before Allowance for Credit Loss, Total		1,156,417		1,138,140
Pass [Member] | IBLOC [Member]
Financing Receivable, Recorded Investment [Line Items]
Revolving loans at amortized cost		494,214		441,661
Financing Receivable, before Allowance for Credit Loss, Total		494,214		441,661
Pass [Member] | Advisor Financing [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		10,413		33,776
Fiscal Year Before Latest Fiscal Year		69,728		43,406
Two Years Before Latest Fiscal Year		42,195
Financing Receivable, before Allowance for Credit Loss, Total		122,336		77,182
Pass [Member] | Real Estate Bridge Lending [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		179,070		621,702
Fiscal Year Before Latest Fiscal Year		624,407
Financing Receivable, before Allowance for Credit Loss, Total		803,477		621,702
Pass [Member] | Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year				373
Fiscal Year Before Latest Fiscal Year		371		113
Two Years Before Latest Fiscal Year		113		3,081
Three Years Before Latest Fiscal Year		2,895		4,553
Four Years Before Latest Fiscal Year		4,253		5,212
Prior		51,717		11,604
Revolving loans at amortized cost		1,204		1,264
Financing Receivable, before Allowance for Credit Loss, Total		60,553		26,200
Special Mention [Member] | SBL Non Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Two Years Before Latest Fiscal Year				99
Three Years Before Latest Fiscal Year		99		666
Four Years Before Latest Fiscal Year		645
Prior		491		859
Financing Receivable, before Allowance for Credit Loss, Total		1,235		1,624
Special Mention [Member] | SBL Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Fiscal Year Before Latest Fiscal Year				141
Two Years Before Latest Fiscal Year		141		1,853
Three Years Before Latest Fiscal Year		1,853
Prior		464		247
Financing Receivable, before Allowance for Credit Loss, Total		2,458		2,241
Special Mention [Member] | Direct Lease Financing [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		8
Three Years Before Latest Fiscal Year				22
Four Years Before Latest Fiscal Year		12		38
Prior		35
Financing Receivable, before Allowance for Credit Loss, Total		55		60
Special Mention [Member] | Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Prior		3,564
Financing Receivable, before Allowance for Credit Loss, Total		3,564
Substandard [Member] | SBL Non Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Two Years Before Latest Fiscal Year		246
Three Years Before Latest Fiscal Year				18
Four Years Before Latest Fiscal Year		134		848
Prior		3,477		895
Financing Receivable, before Allowance for Credit Loss, Total		3,857		1,761
Substandard [Member] | SBL Commercial Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Prior		589		812
Financing Receivable, before Allowance for Credit Loss, Total		589		812
Substandard [Member] | SBL Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Prior		710		710
Financing Receivable, before Allowance for Credit Loss, Total		710		710
Substandard [Member] | Direct Lease Financing [Member]
Financing Receivable, Recorded Investment [Line Items]
Current Fiscal Year		432		526
Fiscal Year Before Latest Fiscal Year		266		1,679
Two Years Before Latest Fiscal Year		942		38
Three Years Before Latest Fiscal Year				22
Four Years Before Latest Fiscal Year		8		31
Prior		5		12
Financing Receivable, before Allowance for Credit Loss, Total		1,653		2,308
Substandard [Member] | Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Prior		607
Revolving loans at amortized cost		68		73
Financing Receivable, before Allowance for Credit Loss, Total		$ 675		$ 73

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

[2] Included in Other loans are $19.6 million of SBA loans purchased for Community Reinvestment Act (“CRA”) purposes as of March 31, 2022. These loans are classified as SBL in the Company’s loan table which classify loans by type, as opposed to risk characteristics.

[3] Included in Other loans are $22.7 million of SBA loans purchased for CRA purposes as of December 31, 2021. These loans are classified as SBL in the Company’s loan table which classify loans by type, as opposed to risk characteristics.

[4] Included in the SBL non real estate non-rated total of $46.6 million, were $44.8 million of PPP loans which are government guaranteed.

[5] The SBL non real estate non-rated total of $23.6 million is substantially all comprised of PPP loans which are government guaranteed.