Fair Value Of Financial Instruments (Schedule Of Fair Value Of Financial Instruments) (Details) - USD ($) $ in Thousands		Jun. 30, 2022		Dec. 31, 2021	Dec. 31, 2020	[2]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities purchased under agreements to resell		$ 608,051		$ 579,866
Financial instruments owned		1,271,032		1,157,004
Available-for-sale securities		1,879,904	[1]	2,113,893
Held-to-maturity securities		5,595,681	[2]	5,343,481	$ 5,343,481
Derivative contracts, Assets	[3]			52,129
Securities sold under agreements to repurchase		350,206		385,528
Financial instruments sold, but not yet purchased, at fair value		811,902		756,150
Senior notes		1,114,016		1,113,478
Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		1,577,677		1,963,326
Cash segregated for regulatory purposes		30,161		186,331
Securities purchased under agreements to resell		608,051		579,866
Financial instruments owned		1,271,032		1,157,004
Available-for-sale securities		1,879,904		2,113,893
Held-to-maturity securities		5,883,448		5,348,558
Bank loans				16,627,847
Loans held for sale		288,676		207,715
Investments		96,519		117,804
Derivative contracts, Assets	[3]	102,248		52,129
Securities sold under agreements to repurchase		350,206		385,528
Bank deposits		26,009,300		23,280,348
Financial instruments sold, but not yet purchased, at fair value		811,902		756,150
Senior notes		1,114,016		1,113,478
Debentures to Stifel Financial Capital Trusts		60,000		60,000
Derivative contracts	[4]	102,247		52,147
Estimated Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		1,577,677		1,963,326
Cash segregated for regulatory purposes		30,161		186,331
Securities purchased under agreements to resell		608,051		579,866
Financial instruments owned		1,271,032		1,157,004
Available-for-sale securities		1,879,904		2,113,893
Held-to-maturity securities		5,595,681		5,343,481
Bank loans		18,740,079		16,704,912
Loans held for sale		288,676		207,715
Investments		96,519		117,804
Derivative contracts, Assets	[3]	102,248		52,129
Securities sold under agreements to repurchase		350,206		385,528
Bank deposits		24,856,580		22,998,842
Financial instruments sold, but not yet purchased, at fair value		811,902		756,150
Senior notes		1,076,610		1,218,344
Debentures to Stifel Financial Capital Trusts		54,468		46,340
Derivative contracts	[4]	$ 102,247		$ 52,147

[1] Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis.

[2] Held-to-maturity securities are carried in the consolidated statements of financial condition at amortized cost, and the changes in the value of these securities, other than impairment charges, are not reported on the consolidated financial statements.

[3] Included in other assets in the consolidated statements of financial condition.

[4] Included in accounts payable and accrued expenses in the consolidated statements of financial condition.