$SEIC
SEI INVESTMENTS CO Stock $seic

$seic Overview Financials Valuation SEC Filings Company Website

2022 Q4 Form 10-Q Financial Statement

#000035089422000050 Filed on October 28, 2022

Income Statement

Concept	2022 Q4	2022 Q3	2021 Q3
Revenue	$456.6M	$471.3M	$485.3M
YoY Change	-8.98%	-2.88%	14.21%
Cost Of Revenue	$70.92M	$73.95M	$77.09M
YoY Change	-15.13%	-4.08%	12.05%
Gross Profit	$385.7M	$140.6M	$162.5M
YoY Change	-7.75%	-13.48%	25.59%
Gross Profit Margin	84.47%	29.83%	33.48%
Selling, General & Admin	$272.4M	$327.4M	$244.0M
YoY Change	8.55%	34.17%	9.13%
% of Gross Profit	70.63%	232.89%	150.19%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$19.22M	$18.94M	$8.408M
YoY Change	-19.06%	125.26%	5.83%
% of Gross Profit	4.98%	13.47%	5.17%
Operating Expenses	$291.6M	$346.3M	$267.1M
YoY Change	6.17%	29.66%	9.11%
Operating Profit	$94.05M	$51.05M	$141.1M
YoY Change	-34.41%	-63.83%	26.75%
Interest Expense	$39.68M	$143.0K	$101.0K
YoY Change	15.42%	41.58%	-33.99%
% of Operating Profit	42.19%	0.28%	0.07%
Other Income/Expense, Net	$3.379M
YoY Change
Pretax Income	$137.1M	$80.11M	$176.3M
YoY Change	-22.88%	-54.57%	24.83%
Income Tax	$24.88M	$18.45M	$38.30M
% Of Pretax Income	18.15%	23.03%	21.72%
Net Earnings	$112.2M	$61.66M	$138.0M
YoY Change	-22.76%	-55.33%	24.26%
Net Earnings / Revenue	24.58%	13.08%	28.44%
Basic Earnings Per Share		$0.46	$0.98
Diluted Earnings Per Share	$826.3K	$0.45	$0.97
COMMON SHARES
Basic Shares Outstanding	134.8M shares	135.5M shares	141.1M shares
Diluted Shares Outstanding		136.3M shares	142.4M shares

Balance Sheet

Concept	2022 Q4	2022 Q3	2021 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$885.2M	$823.0M	$825.7M
YoY Change	2.96%	-0.32%	2.76%
Cash & Equivalents	$853.0M	$791.4M	$793.9M
Short-Term Investments	$32.15M	$31.59M	$31.77M
Other Short-Term Assets	$49.05M	$54.93M	$42.62M
YoY Change	12.62%	28.9%	10.76%
Inventory
Prepaid Expenses
Receivables	$519.1M	$482.7M	$442.2M
Other Receivables	$0.00	$0.00	$18.40M
Total Short-Term Assets	$1.453B	$1.452B	$1.371B
YoY Change	3.5%	5.95%	7.51%
LONG-TERM ASSETS
Property, Plant & Equipment	$206.0M	$182.5M	$183.8M
YoY Change	15.18%	-0.7%	1.81%
Goodwill	$115.6M	$117.5M	$64.49M
YoY Change	-1.39%	82.22%	0.0%
Intangibles	$55.53M	$58.20M	$31.99M
YoY Change	-19.26%	81.92%	26.83%
Long-Term Investments	$239.2M	$39.01M	$186.8M
YoY Change	-2.1%	-79.12%	20.62%
Other Assets	$76.55M	$32.51M	$32.22M
YoY Change	206.99%	0.9%	-0.87%
Total Long-Term Assets	$930.2M	$843.2M	$821.2M
YoY Change	-2.13%	2.68%	1.29%
TOTAL ASSETS
Total Short-Term Assets	$1.453B	$1.452B	$1.371B
Total Long-Term Assets	$930.2M	$843.2M	$821.2M
Total Assets	$2.384B	$2.295B	$2.192B
YoY Change	1.23%	4.73%	5.09%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$13.28M	$8.209M	$10.77M
YoY Change	28.81%	-23.79%	-17.38%
Accrued Expenses	$369.7M	$295.0M	$231.0M
YoY Change	13.97%	27.68%	3.51%
Deferred Revenue	$14.89M	$13.03M	$1.235M
YoY Change	53.2%	954.66%	-78.76%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$397.9M	$327.4M	$253.5M
YoY Change	11.85%	29.18%	1.18%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change	-100.0%
Other Long-Term Liabilities	$31.85M	$14.99M	$22.16M
YoY Change	52.53%	-32.36%	-1.61%
Total Long-Term Liabilities	$31.85M	$14.99M	$22.16M
YoY Change	52.53%	-32.36%	-1.61%
TOTAL LIABILITIES
Total Short-Term Liabilities	$397.9M	$327.4M	$253.5M
Total Long-Term Liabilities	$31.85M	$14.99M	$22.16M
Total Liabilities	$429.7M	$365.1M	$353.7M
YoY Change	-13.0%	3.22%	-0.69%
SHAREHOLDERS EQUITY
Retained Earnings	$694.3M	$711.3M	$629.2M
YoY Change	9.75%	13.06%	8.24%
Common Stock	$1.309B	$1.287B	$1.229B
YoY Change	4.85%	4.64%	4.58%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.954B	$1.930B	$1.838B
YoY Change
Total Liabilities & Shareholders Equity	$2.384B	$2.295B	$2.192B
YoY Change	1.23%	4.73%	5.09%

Cashflow Statement

Concept	2022 Q4	2022 Q3	2021 Q3
OPERATING ACTIVITIES
Net Income	$112.2M	$61.66M	$138.0M
YoY Change	-22.76%	-55.33%	24.26%
Depreciation, Depletion And Amortization	$19.22M	$18.94M	$8.408M
YoY Change	-19.06%	125.26%	5.83%
Cash From Operating Activities	$137.6M	$97.90M	$158.9M
YoY Change	-7.79%	-38.38%	20.0%
INVESTING ACTIVITIES
Capital Expenditures	$17.34M	-$23.52M	-$14.27M
YoY Change	-264.65%	64.84%	-3.61%
Acquisitions
YoY Change
Other Investing Activities	-$12.13M	$5.690M	-$17.19M
YoY Change	-81.85%	-133.1%	42.06%
Cash From Investing Activities	-$29.47M	-$17.83M	-$31.46M
YoY Change	-61.9%	-43.33%	17.37%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-55.90M	-49.17M	-109.5M
YoY Change	60.03%	-55.08%	6.89%
NET CHANGE
Cash From Operating Activities	137.6M	97.90M	158.9M
Cash From Investing Activities	-29.47M	-17.83M	-31.46M
Cash From Financing Activities	-55.90M	-49.17M	-109.5M
Net Change In Cash	52.24M	30.91M	17.97M
YoY Change	41.37%	71.98%	461.72%
FREE CASH FLOW
Cash From Operating Activities	$137.6M	$97.90M	$158.9M
Capital Expenditures	$17.34M	-$23.52M	-$14.27M
Free Cash Flow	$120.3M	$121.4M	$173.1M
YoY Change	-24.72%	-29.88%	17.63%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Address Address Line1 EntityAddressAddressLine1	1 Freedom Valley Drive
	dei	Entity Central Index Key EntityCentralIndexKey	0000350894
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2022-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	0-10200
	dei	Entity Registrant Name EntityRegistrantName	SEI INVESTMENTS COMPANY
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	PA
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	23-1707341
	dei	Entity Address City Or Town EntityAddressCityOrTown	Oaks
	dei	Entity Address State Or Province EntityAddressStateOrProvince	PA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	19456
	dei	City Area Code CityAreaCode	610
	dei	Local Phone Number LocalPhoneNumber	676-1000
	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01 per share
	dei	Trading Symbol TradingSymbol	SEIC
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
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CY2022Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	791437000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	831407000	usd
CY2022Q3	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	351000	usd
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CY2022Q3	us-gaap	Due From Other Related Parties Current DueFromOtherRelatedPartiesCurrent	91223000	usd
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CY2022Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	482692000	usd
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CY2022Q3	us-gaap	Financial Instruments Owned Us Government And Agency Obligations At Fair Value FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue	31586000	usd
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CY2022Q3	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	0	usd
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	us-gaap	Gain Loss On Investments GainLossOnInvestments	134000	usd
CY2022Q3	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	3962000	usd
CY2021Q3	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	892000	usd
	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	6663000	usd
	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	2715000	usd
CY2022Q3	us-gaap	Interest Expense InterestExpense	143000	usd
CY2021Q3	us-gaap	Interest Expense InterestExpense	101000	usd
	us-gaap	Interest Expense InterestExpense	604000	usd
	us-gaap	Interest Expense InterestExpense	354000	usd
CY2022Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	26654000	usd
CY2021Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	35005000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	88926000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	103420000	usd
CY2022Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	80113000	usd
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	176346000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	472175000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	515898000	usd
CY2022Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18454000	usd
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	38301000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	108932000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	114605000	usd
CY2022Q3	us-gaap	Net Income Loss NetIncomeLoss	61659000	usd
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	138045000	usd
	us-gaap	Net Income Loss NetIncomeLoss	363243000	usd
	us-gaap	Net Income Loss NetIncomeLoss	401293000	usd
CY2022Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.46
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.98
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.66
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.83
CY2022Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	135203000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	140507000	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	136524000	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	141928000	shares
CY2022Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.45
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.97
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.63
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.79
CY2022Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	136345000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	142426000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	137958000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	143981000	shares
CY2022Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
CY2021Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.40
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.37
	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	8156000	usd
CY2022Q3	us-gaap	Net Income Loss NetIncomeLoss	61659000	usd
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	138045000	usd
	us-gaap	Net Income Loss NetIncomeLoss	363243000	usd
	us-gaap	Net Income Loss NetIncomeLoss	401293000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-17909000	usd
CY2021Q3	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-5546000	usd
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-37090000	usd
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-2867000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	1194000	usd
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	208000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	3303000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	453000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-4000000	usd
CY2021Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-713000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-11057000	usd
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-1548000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	24000	usd
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	67000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	120000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	190000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-83000	usd
CY2021Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-238000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-401000	usd
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-670000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-21826000	usd
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-6021000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-47746000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3745000	usd
CY2022Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	39833000	usd
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	132024000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	315497000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	397548000	usd
CY2022Q2	us-gaap	Stockholders Equity StockholdersEquity	1922088000	usd
CY2022Q3	us-gaap	Net Income Loss NetIncomeLoss	61659000	usd
CY2022Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-21826000	usd
CY2022Q3	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	49434000	usd
CY2022Q3	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1123000	usd
CY2022Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	5937000	usd
CY2022Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10766000	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	1930313000	usd
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	1805606000	usd
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	138045000	usd
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-6021000	usd
CY2021Q3	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	119895000	usd
CY2021Q3	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1120000	usd
CY2021Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	7915000	usd
CY2021Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11318000	usd
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1838088000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	1860763000	usd
	us-gaap	Net Income Loss NetIncomeLoss	363243000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-47746000	usd
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	258817000	usd
	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	3381000	usd
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	32528000	usd
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	31339000	usd
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.40
	us-gaap	Dividends Common Stock DividendsCommonStock	54378000	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	1930313000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1739907000	usd
	us-gaap	Net Income Loss NetIncomeLoss	401293000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3745000	usd
	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	316053000	usd
	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	3225000	usd
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	34677000	usd
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.37
	us-gaap	Dividends Common Stock DividendsCommonStock	52389000	usd
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1838088000	usd
	us-gaap	Net Income Loss NetIncomeLoss	363243000	usd
	us-gaap	Net Income Loss NetIncomeLoss	401293000	usd
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	65276000	usd
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	82588000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	428519000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	483881000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	32319000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	22520000	usd
	us-gaap	Payments For Software PaymentsForSoftware	24827000	usd
	us-gaap	Payments For Software PaymentsForSoftware	19486000	usd
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	124454000	usd
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	168333000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	124040000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	133895000	usd
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	179000	usd
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	327000	usd
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	2961000	usd
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	11425000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-60342000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-87542000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	40000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	0	usd
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	868000	usd
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	3965000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	266549000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	315811000	usd
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	35909000	usd
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	37902000	usd
	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	6496000	usd
	us-gaap	Payments Of Dividends PaymentsOfDividends	109830000	usd
	us-gaap	Payments Of Dividends PaymentsOfDividends	105516000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-381338000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-387390000	usd
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-26809000	usd
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-2442000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-39970000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	6507000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	831758000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	787727000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	791788000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	794234000	usd
	us-gaap	Net Income Loss NetIncomeLoss	363243000	usd
	us-gaap	Net Income Loss NetIncomeLoss	401293000	usd
CY2022Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.45
	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	24827000	usd
	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	19486000	usd
CY2022Q3	us-gaap	Net Income Loss NetIncomeLoss	61659000	usd
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	138045000	usd
CY2022Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	135203000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	140507000	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	136524000	shares
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	141928000	shares
CY2022Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1142000	shares
CY2021Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1919000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1434000	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2053000	shares
CY2022Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	136345000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	142426000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	137958000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	143981000	shares
CY2022Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.46
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.98
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.66
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.83
	seic	Capitalized Contract Cost Accelerated Amortization CapitalizedContractCostAcceleratedAmortization	1784000	usd
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.97
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.63
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.79
CY2022Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	11862000	shares
CY2021Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	11347000	shares
CY2022Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Net Income Per Outstanding Unit Amount AntidilutiveSecuritiesExcludedFromComputationOfNetIncomePerOutstandingUnitAmount	60.26
CY2021Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Net Income Per Outstanding Unit Amount AntidilutiveSecuritiesExcludedFromComputationOfNetIncomePerOutstandingUnitAmount	57.80
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	12048000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	11531000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Net Income Per Outstanding Unit Amount AntidilutiveSecuritiesExcludedFromComputationOfNetIncomePerOutstandingUnitAmount	60.27
	us-gaap	Antidilutive Securities Excluded From Computation Of Net Income Per Outstanding Unit Amount AntidilutiveSecuritiesExcludedFromComputationOfNetIncomePerOutstandingUnitAmount	57.78
	us-gaap	Net Income Loss NetIncomeLoss	363243000	usd
	us-gaap	Net Income Loss NetIncomeLoss	401293000	usd
	us-gaap	Depreciation Nonproduction DepreciationNonproduction	24942000	usd
	us-gaap	Depreciation Nonproduction DepreciationNonproduction	25141000	usd
	us-gaap	Adjustment For Amortization AdjustmentForAmortization	43777000	usd
	us-gaap	Adjustment For Amortization AdjustmentForAmortization	43749000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	88926000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	103420000	usd
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	103504000	usd
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	110559000	usd
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	31339000	usd
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	31173000	usd
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	734000	usd
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1569000	usd
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	41419000	usd
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	6639000	usd
	us-gaap	Gain Loss On Investments GainLossOnInvestments	-4515000	usd
	us-gaap	Gain Loss On Investments GainLossOnInvestments	134000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	3014000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	2103000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	4820000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-314000	usd
	seic	Capitalized Contract Costs Net Of Amortization CapitalizedContractCostsNetOfAmortization	1554000	usd
	seic	Capitalized Contract Costs Net Of Amortization CapitalizedContractCostsNetOfAmortization	482000	usd
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	6934000	usd
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-921000	usd
	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	32187000	usd
	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	4537000	usd
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	41697000	usd
	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	58537000	usd
	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	11422000	usd
	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	3919000	usd
	us-gaap	Increase Decrease Due From Affiliates IncreaseDecreaseDueFromAffiliates	-54328000	usd
	us-gaap	Increase Decrease Due From Affiliates IncreaseDecreaseDueFromAffiliates	-51422000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-2103000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	3006000	usd
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	27092000	usd
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-9851000	usd
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	3093000	usd
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	150000	usd
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	65276000	usd
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	82588000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	428519000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	483881000	usd
CY2022Q3	us-gaap	Equity Method Investments EquityMethodInvestments	39012000	usd
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	103504000	usd
	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	110559000	usd
CY2022Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	26654000	usd
CY2021Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	35005000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	88926000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	103420000	usd
CY2022Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	2336000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1602000	usd
CY2022Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	482692000	usd
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	441609000	usd
CY2022Q3	us-gaap	Billed Contract Receivables BilledContractReceivables	121181000	usd
CY2021Q4	us-gaap	Billed Contract Receivables BilledContractReceivables	111209000	usd
CY2022Q3	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	332457000	usd
CY2021Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	315255000	usd
CY2022Q3	us-gaap	Other Receivables Gross Current OtherReceivablesGrossCurrent	31390000	usd
CY2021Q4	us-gaap	Other Receivables Gross Current OtherReceivablesGrossCurrent	16747000	usd
CY2022Q3	seic	Receivables Gross Current ReceivablesGrossCurrent	485028000	usd
CY2021Q4	seic	Receivables Gross Current ReceivablesGrossCurrent	443211000	usd
CY2022Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	613995000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	588117000	usd
CY2022Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	431473000	usd
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	409248000	usd
CY2022Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	182522000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	178869000	usd
	us-gaap	Depreciation Nonproduction DepreciationNonproduction	24942000	usd
	us-gaap	Depreciation Nonproduction DepreciationNonproduction	25141000	usd
CY2022Q3	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	37790000	usd
CY2021Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	36236000	usd
CY2022Q3	seic	Capitalized Contract Cost Amount Capitalized During Period CapitalizedContractCostAmountCapitalizedDuringPeriod	4648000	usd
CY2021Q3	seic	Capitalized Contract Cost Amount Capitalized During Period CapitalizedContractCostAmountCapitalizedDuringPeriod	2932000	usd
	seic	Capitalized Contract Cost Amount Capitalized During Period CapitalizedContractCostAmountCapitalizedDuringPeriod	9710000	usd
	us-gaap	Capitalized Contract Cost Impairment Loss CapitalizedContractCostImpairmentLoss	0	usd
CY2022Q3	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	82946000	usd
CY2021Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	107933000	usd
CY2022Q3	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	7142000	usd
CY2021Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	13951000	usd
CY2022Q3	seic	Accrued Voluntary Separation Program Current AccruedVoluntarySeparationProgramCurrent	58424000	usd
CY2021Q4	seic	Accrued Voluntary Separation Program Current AccruedVoluntarySeparationProgramCurrent	0	usd
CY2022Q3	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	41919000	usd
CY2021Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	36411000	usd
CY2022Q3	seic	Accrued Sub Advisory Distribution And Other Asset Management Fees Current AccruedSubAdvisoryDistributionAndOtherAssetManagementFeesCurrent	57988000	usd
CY2021Q4	seic	Accrued Sub Advisory Distribution And Other Asset Management Fees Current AccruedSubAdvisoryDistributionAndOtherAssetManagementFeesCurrent	58661000	usd
CY2022Q3	us-gaap	Dividends Payable Current DividendsPayableCurrent	0	usd
CY2021Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	55452000	usd
CY2022Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	46568000	usd
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	51974000	usd
CY2022Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	294987000	usd
CY2021Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	324382000	usd
CY2022Q3	us-gaap	Financial Instruments Owned Us Government And Agency Obligations At Fair Value FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue	31586000	usd
CY2022Q3	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	146581000	usd
CY2021Q4	us-gaap	Financial Instruments Owned Us Government And Agency Obligations At Fair Value FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue	28267000	usd
CY2021Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	164724000	usd
CY2022Q3	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	474736000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	422838000	usd
CY2022Q3	seic	Debt Securities Available For Sale And Equity Securities Fvni Cost DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNICost	124382000	usd
CY2022Q3	seic	Debt Securities Available For Sale And Equity Securities Fvni Accumulated Gross Unrealized Gain Before Tax DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAccumulatedGrossUnrealizedGainBeforeTax	0	usd
CY2022Q3	seic	Debt Securities Available For Sale And Equity Securities Fvni Accumulated Gross Unrealized Loss Before Tax DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAccumulatedGrossUnrealizedLossBeforeTax	15007000	usd
CY2022Q3	seic	Debt Securities Available For Sale And Equity Securities Fvni DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNI	109375000	usd
CY2021Q4	seic	Debt Securities Available For Sale And Equity Securities Fvni Cost DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNICost	128898000	usd
CY2021Q4	seic	Debt Securities Available For Sale And Equity Securities Fvni Accumulated Gross Unrealized Gain Before Tax DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAccumulatedGrossUnrealizedGainBeforeTax	723000	usd
CY2021Q4	seic	Debt Securities Available For Sale And Equity Securities Fvni Accumulated Gross Unrealized Loss Before Tax DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAccumulatedGrossUnrealizedLossBeforeTax	80000	usd
CY2021Q4	seic	Debt Securities Available For Sale And Equity Securities Fvni DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNI	129541000	usd
CY2022Q3	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-10718000	usd
CY2022Q3	seic	Accumulated Other Comprehensive Income Loss Debt Securities Available For Sale Securities Adjustment Tax AccumulatedOtherComprehensiveIncomeLossDebtSecuritiesAvailableForSaleSecuritiesAdjustmentTax	-3201000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-62000	usd
CY2021Q4	seic	Accumulated Other Comprehensive Income Loss Debt Securities Available For Sale Securities Adjustment Tax AccumulatedOtherComprehensiveIncomeLossDebtSecuritiesAvailableForSaleSecuritiesAdjustmentTax	-18000	usd
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	usd
	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	usd
	us-gaap	Equity Securities Fv Ni Realized Gain EquitySecuritiesFvNiRealizedGain	226000	usd
	us-gaap	Equity Securities Fv Ni Realized Loss EquitySecuritiesFvNiRealizedLoss	714000	usd
	us-gaap	Equity Securities Fv Ni Realized Gain EquitySecuritiesFvNiRealizedGain	714000	usd
	us-gaap	Equity Securities Fv Ni Realized Loss EquitySecuritiesFvNiRealizedLoss	65000	usd
CY2022Q3	us-gaap	Financial Instruments Owned Us Government And Agency Obligations At Fair Value FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue	31586000	usd
CY2021Q4	us-gaap	Financial Instruments Owned Us Government And Agency Obligations At Fair Value FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue	28267000	usd
CY2022Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	10766000	usd
CY2021Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11318000	usd
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	31339000	usd
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	31173000	usd
CY2022Q3	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1917000	usd
CY2021Q3	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1857000	usd
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	5851000	usd
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	5615000	usd
CY2022Q3	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	8849000	usd
CY2021Q3	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	9461000	usd
	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	25488000	usd
	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	25558000	usd
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Plan Modification Incremental Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost	2779000	usd
CY2022Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	72913000	usd
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	18147000	usd
CY2022Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	33688000	usd
CY2022Q3	us-gaap	Share Price SharePrice	49.05
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	49.90
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	17645000	shares
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	7705000	shares
CY2022Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.40
	us-gaap	Dividends Common Stock DividendsCommonStock	54378000	usd
	us-gaap	Dividends Common Stock DividendsCommonStock	52389000	usd
	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-48147000	usd
	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-401000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-47746000	usd
CY2022Q3	us-gaap	Revenues Revenues	471334000	usd
CY2022Q3	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	330751000	usd
CY2022Q3	us-gaap	Gross Profit GrossProfit	140583000	usd
CY2021Q3	us-gaap	Revenues Revenues	485322000	usd
CY2021Q3	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	322843000	usd
CY2021Q3	us-gaap	Gross Profit GrossProfit	162479000	usd
CY2022Q3	us-gaap	Gross Profit GrossProfit	140583000	usd
CY2021Q3	us-gaap	Gross Profit GrossProfit	162479000	usd
CY2022Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	89537000	usd
CY2021Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	21354000	usd
CY2022Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	51046000	usd
CY2021Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	141125000	usd
CY2022Q3	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	23516000	usd
CY2021Q3	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	14266000	usd
CY2022Q3	us-gaap	Depreciation Nonproduction DepreciationNonproduction	8558000	usd
CY2021Q3	us-gaap	Depreciation Nonproduction DepreciationNonproduction	8408000	usd
CY2022Q3	us-gaap	Adjustment For Amortization AdjustmentForAmortization	10382000	usd
CY2021Q3	us-gaap	Adjustment For Amortization AdjustmentForAmortization	14674000	usd
	us-gaap	Revenues Revenues	1534447000	usd
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	1015382000	usd
	us-gaap	Gross Profit GrossProfit	519065000	usd
	us-gaap	Revenues Revenues	1416659000	usd
	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	941484000	usd
	us-gaap	Gross Profit GrossProfit	475175000	usd
	us-gaap	Operating Income Loss OperatingIncomeLoss	381705000	usd
	us-gaap	Operating Income Loss OperatingIncomeLoss	409983000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	57146000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	42006000	usd
	us-gaap	Depreciation Nonproduction DepreciationNonproduction	24942000	usd
	us-gaap	Depreciation Nonproduction DepreciationNonproduction	25141000	usd
	us-gaap	Adjustment For Amortization AdjustmentForAmortization	43777000	usd
	us-gaap	Adjustment For Amortization AdjustmentForAmortization	43749000	usd
CY2022Q3	seic	Gross Liability For Unrecognized Tax Benefits Exclusive Of Interest And Penalties GrossLiabilityForUnrecognizedTaxBenefitsExclusiveOfInterestAndPenalties	17718000	usd
CY2021Q4	seic	Gross Liability For Unrecognized Tax Benefits Exclusive Of Interest And Penalties GrossLiabilityForUnrecognizedTaxBenefitsExclusiveOfInterestAndPenalties	14887000	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	16973000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	14382000	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1458000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1338000	usd
CY2022Q3	seic	Gross Liability For Unrecognized Tax Benefits Exclusive Of Interest And Penalties GrossLiabilityForUnrecognizedTaxBenefitsExclusiveOfInterestAndPenalties	17718000	usd
CY2021Q4	seic	Gross Liability For Unrecognized Tax Benefits Exclusive Of Interest And Penalties GrossLiabilityForUnrecognizedTaxBenefitsExclusiveOfInterestAndPenalties	14887000	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1458000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1338000	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	19176000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	16225000	usd
CY2022Q3	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	4190000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3312000	usd
CY2021Q4	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	4253000	usd
CY2022Q3	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	14986000	usd
CY2021Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	11972000	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	19176000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	16225000	usd
CY2022Q3	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021Q3	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022Q3	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.034
CY2021Q3	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.025
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.029
	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.030
CY2022Q3	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.002
CY2021Q3	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.001
	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.001
	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.001
CY2022Q3	seic	Effective Income Tax Rate Reconciliation Tax Benefit From Stock Option Exercises Percent EffectiveIncomeTaxRateReconciliationTaxBenefitFromStockOptionExercisesPercent	-0.011
CY2021Q3	seic	Effective Income Tax Rate Reconciliation Tax Benefit From Stock Option Exercises Percent EffectiveIncomeTaxRateReconciliationTaxBenefitFromStockOptionExercisesPercent	-0.006
	seic	Effective Income Tax Rate Reconciliation Tax Benefit From Stock Option Exercises Percent EffectiveIncomeTaxRateReconciliationTaxBenefitFromStockOptionExercisesPercent	-0.005
	seic	Effective Income Tax Rate Reconciliation Tax Benefit From Stock Option Exercises Percent EffectiveIncomeTaxRateReconciliationTaxBenefitFromStockOptionExercisesPercent	-0.010
CY2022Q3	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	0
CY2021Q3	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	-0.003
	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	0
	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	-0.002
CY2022Q3	seic	Effective Income Tax Rate Reconciliation Provision To Return Adjustments Percent EffectiveIncomeTaxRateReconciliationProvisionToReturnAdjustmentsPercent	0
CY2021Q3	seic	Effective Income Tax Rate Reconciliation Provision To Return Adjustments Percent EffectiveIncomeTaxRateReconciliationProvisionToReturnAdjustmentsPercent	-0.005
	seic	Effective Income Tax Rate Reconciliation Provision To Return Adjustments Percent EffectiveIncomeTaxRateReconciliationProvisionToReturnAdjustmentsPercent	0
	seic	Effective Income Tax Rate Reconciliation Provision To Return Adjustments Percent EffectiveIncomeTaxRateReconciliationProvisionToReturnAdjustmentsPercent	-0.002
CY2022Q3	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001
CY2021Q3	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.003
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.002
	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.003
CY2022Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.230
CY2021Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.217
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.231
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.222
CY2021Q4	us-gaap	Goodwill Goodwill	117232000	usd
	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	319000	usd
	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-42000	usd
CY2022Q3	us-gaap	Goodwill Goodwill	117509000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	9534000	usd
CY2022Q3	us-gaap	Revenues Revenues	471334000	usd
CY2022Q3	us-gaap	Revenues Revenues	471334000	usd
CY2021Q3	us-gaap	Revenues Revenues	485322000	usd
CY2021Q3	us-gaap	Revenues Revenues	485322000	usd
	us-gaap	Revenues Revenues	1534447000	usd
	us-gaap	Revenues Revenues	1534447000	usd
	us-gaap	Revenues Revenues	1416659000	usd
	us-gaap	Revenues Revenues	1416659000	usd
CY2022Q3	seic	Voluntary Separation Program Personnel Costs VoluntarySeparationProgramPersonnelCosts	56996000	usd

Files In Submission

Name	View Source	Status
0000350894-22-000050-index-headers.html	Edgar Link	pending
0000350894-22-000050-index.html	Edgar Link	pending
0000350894-22-000050.txt	Edgar Link	pending
0000350894-22-000050-xbrl.zip	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
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report.css	Edgar Link	pending
seic-20220930.htm	Edgar Link	pending
seic-20220930.xsd	Edgar Link	pending
seic-20220930_g1.jpg	Edgar Link	pending
seic-930202210qex311.htm	Edgar Link	pending
seic-930202210qex312.htm	Edgar Link	pending
seic-930202210qex32.htm	Edgar Link	pending
Show.js	Edgar Link	pending
seic-20220930_def.xml	Edgar Link	unprocessable
seic-20220930_pre.xml	Edgar Link	unprocessable
seic-20220930_cal.xml	Edgar Link	unprocessable
seic-20220930_lab.xml	Edgar Link	unprocessable
seic-20220930_htm.xml	Edgar Link	completed
FilingSummary.xml	Edgar Link	unprocessable

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$SEIC
SEI INVESTMENTS CO Stock $seic

2022 Q4 Form 10-Q Financial Statement

#000035089422000050 Filed on October 28, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SEIC SEI INVESTMENTS CO Stock $seic

2022 Q4 Form 10-Q Financial Statement

#000035089422000050 Filed on October 28, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SEIC
SEI INVESTMENTS CO Stock $seic