Loans (Major Classifications Of Loans) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022
Major classifications of loans [Abstract]
Total loans, gross	$ 5,348,196	$ 5,482,121
Unamortized loan fees and costs	6,151	4,732
Total loans, including unamortized loan fees and costs	5,354,347	5,486,853	$ 4,164,298
SBL Non-Real Estate [Member]
Major classifications of loans [Abstract]
Total loans, gross	114,334	108,954
Total loans, including unamortized loan fees and costs	114,334	108,954	122,387
SBL Commercial Mortgage [Member]
Major classifications of loans [Abstract]
Total loans, gross	492,798	474,496
Total loans, including unamortized loan fees and costs	492,798	474,496	385,559
SBL Construction [Member]
Major classifications of loans [Abstract]
Total loans, gross	33,116	30,864
Total loans, including unamortized loan fees and costs	33,116	30,864	31,432
Small Business Loans [Member]
Major classifications of loans [Abstract]
Total loans, gross	640,248	614,314
Direct Lease Financing [Member]
Major classifications of loans [Abstract]
Total loans, gross	652,541	632,160
Total loans, including unamortized loan fees and costs	652,541	632,160	538,616
SBLOC/IBLOC [Member]
Major classifications of loans [Abstract]
Total loans, gross	2,053,450	2,332,469
Total loans, including unamortized loan fees and costs	2,053,450	2,332,469	2,067,233
Advisor Financing [Member]
Major classifications of loans [Abstract]
Total loans, gross	189,425	172,468
Total loans, including unamortized loan fees and costs	$ 189,425	172,468	146,461
Loan amount, loan-to-value ratio	70.00%
Real Estate Bridge Loans [Member]
Major classifications of loans [Abstract]
Total loans, gross	$ 1,752,322	1,669,031
Total loans, including unamortized loan fees and costs	1,752,322	1,669,031	803,477
Other Loans [Member]
Major classifications of loans [Abstract]
Total loans, gross	60,210	61,679
Total loans, including unamortized loan fees and costs	60,210	61,679	$ 61,096
Consumer - Other [Member]
Major classifications of loans [Abstract]
Demand deposit overdrafts reclassified as loan balances	4,800	2,600
IBLOC [Member]
Major classifications of loans [Abstract]
Total loans, gross	$ 921,300	$ 1,120,000

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- Definition

Loan Amount, Loan-To-Value Ratio

+ References

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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

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- Definition

Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5074-111524

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Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 20
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6378536&loc=d3e10092-111533

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