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Fair Value Of Financial Instruments (Schedule Of Fair Value Of Financial Instruments) (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
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Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Securities purchased under agreements to resell | $ 470,025 | $ 217,930
Financial instruments owned | 981,282 | 694,028
Available-for-sale securities | 2,190,128 | 2,230,297
Held-to-maturity securities | 4,765,024 | 4,107,960
Securities sold under agreements to repurchase | 208,228 | 190,955
Financial instruments sold, but not yet purchased, at fair value | 644,762 | 437,978
Senior notes | 1,112,672 | 1,112,409
Carrying Value [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Cash and cash equivalents | 1,425,511 | 2,279,274
Cash segregated for regulatory purposes | 95,074 | 172,932
Securities purchased under agreements to resell | 470,025 | 217,930
Financial instruments owned | 981,282 | 694,028
Available-for-sale securities | 2,190,128 | 2,230,297
Held-to-maturity securities | 4,761,401 | 4,117,384
Bank loans | 12,091,713 | 11,006,760
Loans held for sale | 330,521 | 551,248
Investments | 119,545 | 113,862
Securities sold under agreements to repurchase | 208,228 | 190,955
Bank deposits | 18,715,133 | 17,396,497
Financial instruments sold, but not yet purchased, at fair value | 644,762 | 437,978
Senior notes | 1,112,672 | 1,112,409
Debentures to Stifel Financial Capital Trusts | 60,000 | 60,000
Estimated Fair Value [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Cash and cash equivalents | 1,425,511 | 2,279,274
Cash segregated for regulatory purposes | 95,074 | 172,932
Securities purchased under agreements to resell | 470,025 | 217,930
Financial instruments owned | 981,282 | 694,028
Available-for-sale securities | 2,190,128 | 2,230,297
Held-to-maturity securities | 4,765,024 | 4,107,960
Bank loans | 12,168,119 | 11,088,058
Loans held for sale | 330,521 | 551,248
Investments | 119,545 | 113,862
Securities sold under agreements to repurchase | 208,228 | 190,955
Bank deposits | 18,527,784 | 17,192,722
Financial instruments sold, but not yet purchased, at fair value | 644,762 | 437,978
Senior notes | 1,228,983 | 1,265,669
Debentures to Stifel Financial Capital Trusts | $ 46,444 | $ 41,071

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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- Definition Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits. + References No definition available. + Details
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- Definition Sum of the carrying amounts as of the balance sheet date of all investments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(h)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition Amount, after the effects of master netting arrangements, of funds outstanding loaned in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price. Includes purchases of participations in pools of securities that are subject to a resale agreement, assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(m)(2)(i)(A)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(3)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=49176635&loc=d3e9760-107771 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 + Details
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16(a)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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