Business Changes and Developments - Intangible Assets Associated with Acquisitions (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 3,630
Accumulated Amortization	3,294
Client Related [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,630
Accumulated Amortization	3,294
Investment Banking and Equities [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	0
Accumulated Amortization	0
Investment Banking and Equities [Member] \| Client Related [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	0
Accumulated Amortization	0
Investment Management [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,630
Accumulated Amortization	3,294
Investment Management [Member] \| Client Related [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,630
Accumulated Amortization	$ 3,294

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(16))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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