Loans (Delinquent Loans By Loan Category) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Sep. 30, 2019	Mar. 31, 2019
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	$ 3,161	$ 12,227
Loans Receivable, Gross	3,739,171	2,643,384	$ 778,200	$ 518,300
Total loans, net of unamortized loan fees and costs	3,747,224	2,652,323
30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	9,193	5,342
60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	4,339	2,954
90+ Days Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	461	497
Financial Asset, Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	17,154	21,020
Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	3,730,070	2,631,303
SBL Non Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	1,313	3,159
Loans Receivable, Gross	132,745	233,545
Total loans, net of unamortized loan fees and costs	147,722	255,318
SBL Non Real Estate [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	1,375	1,760
SBL Non Real Estate [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	3,138	805
SBL Non Real Estate [Member] | 90+ Days Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	441	110
SBL Non Real Estate [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	6,267	5,834
SBL Non Real Estate [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	141,455	249,484
SBL Commercial Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	812	7,305
Loans Receivable, Gross	353,469	287,208
Total loans, net of unamortized loan fees and costs	361,171	300,817
SBL Commercial Mortgage [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross		87
SBL Commercial Mortgage [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	220	961
SBL Commercial Mortgage [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	1,032	8,353
SBL Commercial Mortgage [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	360,139	292,464
SBL Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	710	711
Loans Receivable, Gross	27,199	20,273
Total loans, net of unamortized loan fees and costs	27,199	20,273
SBL Construction [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	710	711
SBL Construction [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	26,489	19,562
Direct Lease Financing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	254	751
Loans Receivable, Gross	531,012	462,182
Total loans, net of unamortized loan fees and costs	531,012	462,182
Direct Lease Financing [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	1,833	2,845
Direct Lease Financing [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	692	941
Direct Lease Financing [Member] | 90+ Days Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	20	78
Direct Lease Financing [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	2,799	4,615
Direct Lease Financing [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	528,213	457,567
SBLOC/IBLOC [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unamortized loan fees and costs	1,929,581	1,550,086
SBLOC/IBLOC [Member] | 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	5,985	650
SBLOC/IBLOC [Member] | 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	289	247
SBLOC/IBLOC [Member] | 90+ Days Still Accruing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross		309
SBLOC/IBLOC [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	6,274	1,206
SBLOC/IBLOC [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	1,923,307	1,548,880
Advisor Financing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	115,770	48,282
Total loans, net of unamortized loan fees and costs	115,770	48,282
Advisor Financing [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	115,770	48,282
Real Estate Bridge Lending [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	621,702
Total loans, net of unamortized loan fees and costs	621,702
Real Estate Bridge Lending [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	621,702
Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	72	301
Loans Receivable, Gross	27,693	41,808
Total loans, net of unamortized loan fees and costs	5,014	6,426
Other Loans [Member] | Financial Asset, Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	72	301
Other Loans [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	4,942	6,125
Consumer - Home Equity [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual	72	301
Unamortized Loan Fees And Costs [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total loans, net of unamortized loan fees and costs	8,053	8,939
Unamortized Loan Fees And Costs [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Receivable, Gross	$ 8,053	$ 8,939