$SEIC
SEI INVESTMENTS CO Stock $seic

$seic Overview Financials Valuation SEC Filings Company Website

2024 Q2 Form 10-Q Financial Statement

#000035089424000084 Filed on April 29, 2024

Income Statement

Concept	2024 Q2	2024 Q1
Revenue	$519.0M	$511.6M
YoY Change	6.12%	9.05%
Cost Of Revenue	$73.21M	$73.84M
YoY Change	-6.95%	0.51%
Gross Profit	$169.9M	$437.7M
YoY Change	-58.61%	10.64%
Gross Profit Margin	32.73%	85.57%
Selling, General & Admin	$287.9M	$293.1M
YoY Change	3.04%	6.23%
% of Gross Profit	169.48%	66.96%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$18.85M	$18.78M
YoY Change	2.4%	4.57%
% of Gross Profit	11.1%	4.29%
Operating Expenses	$309.3M	$311.9M
YoY Change	3.86%	6.12%
Operating Profit	$136.5M	$125.9M
YoY Change	21.24%	23.67%
Interest Expense	$45.80M	$44.58M
YoY Change	7.41%	16.52%
% of Operating Profit	33.55%	35.42%
Other Income/Expense, Net
YoY Change
Pretax Income	$182.8M	$170.4M
YoY Change	17.76%	21.71%
Income Tax	$43.69M	$39.03M
% Of Pretax Income	23.9%	22.9%
Net Earnings	$139.1M	$131.4M
YoY Change	17.05%	22.79%
Net Earnings / Revenue	26.81%	25.69%
Basic Earnings Per Share	$1.06	$1.00
Diluted Earnings Per Share	$1.05	$0.99
COMMON SHARES
Basic Shares Outstanding	131.4M shares	131.4M shares
Diluted Shares Outstanding	132.1M shares	132.7M shares

Balance Sheet

Concept	2024 Q2	2024 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$798.6M	$878.6M
YoY Change	-1.17%	1.44%
Cash & Equivalents	$768.3M	$846.6M
Short-Term Investments	$30.34M	$31.96M
Other Short-Term Assets	$61.47M	$59.44M
YoY Change	9.95%	15.83%
Inventory
Prepaid Expenses
Receivables	$589.7M	$617.0M
Other Receivables	$47.96M	$0.00
Total Short-Term Assets	$1.498B	$1.555B
YoY Change	3.9%	8.64%
LONG-TERM ASSETS
Property, Plant & Equipment	$167.6M	$188.9M
YoY Change	-17.37%	-8.84%
Goodwill	$137.3M	$137.2M
YoY Change	18.73%	18.69%
Intangibles	$75.41M	$78.74M
YoY Change	51.97%	49.79%
Long-Term Investments	$53.22M	$229.5M
YoY Change	-70.08%	23.47%
Other Assets	$50.91M	$140.0M
YoY Change	-46.2%	63.08%
Total Long-Term Assets	$1.031B	$1.013B
YoY Change	16.75%	14.24%
TOTAL ASSETS
Total Short-Term Assets	$1.498B	$1.555B
Total Long-Term Assets	$1.031B	$1.013B
Total Assets	$2.529B	$2.568B
YoY Change	8.78%	10.78%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$9.199M	$10.29M
YoY Change	27.41%	-27.33%
Accrued Expenses	$208.1M	$250.4M
YoY Change	-16.06%	2.62%
Deferred Revenue	$12.20M	$15.27M
YoY Change	-18.21%	6.59%
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$237.1M	$276.0M
YoY Change	-12.29%	1.28%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$18.16M	$33.40M
YoY Change	-41.49%	5.52%
Total Long-Term Liabilities	$18.16M	$33.40M
YoY Change	-41.49%	5.52%
TOTAL LIABILITIES
Total Short-Term Liabilities	$237.1M	$276.0M
Total Long-Term Liabilities	$18.16M	$33.40M
Total Liabilities	$281.6M	$309.4M
YoY Change	-6.59%	1.72%
SHAREHOLDERS EQUITY
Retained Earnings	$823.5M	$843.9M
YoY Change	13.64%	15.6%
Common Stock	$1.466B	$1.456B
YoY Change	9.52%	9.6%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.248B	$2.259B
YoY Change
Total Liabilities & Shareholders Equity	$2.529B	$2.568B
YoY Change	8.78%	10.78%

Cashflow Statement

Concept	2024 Q2	2024 Q1
OPERATING ACTIVITIES
Net Income	$139.1M	$131.4M
YoY Change	17.05%	22.79%
Depreciation, Depletion And Amortization	$18.85M	$18.78M
YoY Change	2.4%	4.57%
Cash From Operating Activities	$114.7M	$112.3M
YoY Change	68.51%	-1.81%
INVESTING ACTIVITIES
Capital Expenditures	$14.13M	$13.07M
YoY Change	-4.69%	22.86%
Acquisitions
YoY Change
Other Investing Activities	-$9.318M	$9.931M
YoY Change	-255.2%	153.54%
Cash From Investing Activities	-$23.45M	-$37.63M
YoY Change	165.82%	121.53%
FINANCING ACTIVITIES
Cash Dividend Paid		$60.36M
YoY Change		4.36%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-167.5M	-$62.16M
YoY Change	38.6%	-47.59%
NET CHANGE
Cash From Operating Activities	114.7M	$112.3M
Cash From Investing Activities	-23.45M	-$37.63M
Cash From Financing Activities	-167.5M	-$62.16M
Net Change In Cash	-76.24M	$11.93M
YoY Change	23.76%	-163.97%
FREE CASH FLOW
Cash From Operating Activities	$114.7M	$112.3M
Capital Expenditures	$14.13M	$13.07M
Free Cash Flow	$100.6M	$99.22M
YoY Change	88.88%	-4.34%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	107015000	usd
CY2024Q1	us-gaap	Increase Decrease Due From Affiliates IncreaseDecreaseDueFromAffiliates	-51986000	usd
CY2023Q1	us-gaap	Increase Decrease Due From Affiliates IncreaseDecreaseDueFromAffiliates	-49292000	usd
CY2024Q1	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-328000	usd
CY2023Q1	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	877000	usd
CY2023Q1	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-65998000	usd
CY2024Q1	us-gaap	Revenues Revenues	511579000	usd
CY2023Q1	us-gaap	Revenues Revenues	469119000	usd
CY2024Q1	seic	Subadvisory Distribution And Other Asset Management Costs SubadvisoryDistributionAndOtherAssetManagementCosts	46768000	usd
CY2023Q1	seic	Subadvisory Distribution And Other Asset Management Costs SubadvisoryDistributionAndOtherAssetManagementCosts	47379000	usd
CY2024Q1	seic	Software Royalties And Other Information Processing Costs SoftwareRoyaltiesAndOtherInformationProcessingCosts	8471000	usd
CY2023Q1	seic	Software Royalties And Other Information Processing Costs SoftwareRoyaltiesAndOtherInformationProcessingCosts	7293000	usd
CY2024Q1	seic	Compensation Benefits And Other Personnel CompensationBenefitsAndOtherPersonnel	192916000	usd
CY2023Q1	seic	Compensation Benefits And Other Personnel CompensationBenefitsAndOtherPersonnel	173415000	usd
CY2024Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11059000	usd
CY2023Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8074000	usd
CY2024Q1	us-gaap	Professional Fees ProfessionalFees	51976000	usd
CY2023Q1	us-gaap	Professional Fees ProfessionalFees	61104000	usd
CY2024Q1	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	37160000	usd
CY2023Q1	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	33340000	usd
CY2024Q1	us-gaap	Occupancy Net OccupancyNet	18603000	usd
CY2023Q1	us-gaap	Occupancy Net OccupancyNet	18792000	usd
CY2024Q1	us-gaap	Adjustment For Amortization AdjustmentForAmortization	10386000	usd
CY2023Q1	us-gaap	Adjustment For Amortization AdjustmentForAmortization	9424000	usd
CY2024Q1	us-gaap	Depreciation Nonproduction DepreciationNonproduction	8389000	usd
CY2023Q1	us-gaap	Depreciation Nonproduction DepreciationNonproduction	8531000	usd
CY2024Q1	us-gaap	Costs And Expenses CostsAndExpenses	385728000	usd
CY2023Q1	us-gaap	Costs And Expenses CostsAndExpenses	367352000	usd
CY2024Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	125851000	usd
CY2023Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	101767000	usd
CY2024Q1	us-gaap	Gain Loss On Investments GainLossOnInvestments	2256000	usd
CY2023Q1	us-gaap	Gain Loss On Investments GainLossOnInvestments	744000	usd
CY2024Q1	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	10819000	usd
CY2023Q1	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	8778000	usd
CY2024Q1	us-gaap	Interest Expense InterestExpense	139000	usd
CY2023Q1	us-gaap	Interest Expense InterestExpense	141000	usd
CY2024Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	31643000	usd
CY2023Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	28879000	usd
CY2024Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	170430000	usd
CY2023Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	140027000	usd
CY2024Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	39030000	usd
CY2023Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	33012000	usd
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	131400000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	107015000	usd
CY2024Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.00
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.80
CY2024Q1	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	131417000	shares
CY2023Q1	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	134020000	shares
CY2024Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.99
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.79
CY2024Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	132745000	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	135311000	shares
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	131400000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	107015000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-2923000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	3067000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-367000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	385000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-1231000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	1287000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	31000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	-11000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	105000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax	-35000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4259000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	4389000	usd
CY2024Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	127141000	usd
CY2023Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	111404000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	2131828000	usd
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	131400000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4259000	usd
CY2024Q1	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	56001000	usd
CY2024Q1	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1196000	usd
CY2024Q1	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	43831000	usd
CY2024Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11059000	usd
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	2259054000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1953824000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	4389000	usd
CY2023Q1	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	80332000	usd
CY2023Q1	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	1203000	usd
CY2023Q1	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	20161000	usd
CY2023Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8074000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	2014334000	usd
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	131400000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	107015000	usd
CY2024Q1	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-19106000	usd
CY2023Q1	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	7349000	usd
CY2024Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	112294000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	114364000	usd
CY2024Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	13072000	usd
CY2023Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	10640000	usd
CY2024Q1	us-gaap	Payments For Software PaymentsForSoftware	6277000	usd
CY2023Q1	us-gaap	Payments For Software PaymentsForSoftware	9041000	usd
CY2024Q1	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	41650000	usd
CY2023Q1	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	21777000	usd
CY2024Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	32116000	usd
CY2023Q1	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	28387000	usd
CY2024Q1	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	1180000	usd
CY2023Q1	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	usd
CY2024Q1	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	9931000	usd
CY2023Q1	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	3917000	usd
CY2024Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-37634000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-16988000	usd
CY2024Q1	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	usd
CY2023Q1	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	904000	usd
CY2024Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	46825000	usd
CY2023Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	81214000	usd
CY2024Q1	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	45027000	usd
CY2023Q1	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	21364000	usd
CY2024Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	60359000	usd
CY2023Q1	us-gaap	Payments Of Dividends PaymentsOfDividends	57835000	usd
CY2024Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-62157000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-118589000	usd
CY2024Q1	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-572000	usd
CY2023Q1	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2561000	usd
CY2024Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	11931000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-18652000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	834998000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	853359000	usd
CY2024Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	846929000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	834707000	usd
CY2024Q1	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	6277000	usd
CY2023Q1	us-gaap	Capitalized Computer Software Additions CapitalizedComputerSoftwareAdditions	9041000	usd
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	131400000	usd
CY2024Q1	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	131417000	shares
CY2023Q1	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	134020000	shares
CY2024Q1	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1328000	shares
CY2023Q1	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1291000	shares
CY2024Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	132745000	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	135311000	shares
CY2024Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.00
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.80
CY2024Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.99
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.79
CY2024Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	10912000	shares
CY2023Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	11273000	shares
CY2024Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Net Income Per Outstanding Unit Amount AntidilutiveSecuritiesExcludedFromComputationOfNetIncomePerOutstandingUnitAmount	61.05
CY2023Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Net Income Per Outstanding Unit Amount AntidilutiveSecuritiesExcludedFromComputationOfNetIncomePerOutstandingUnitAmount	61.28
CY2024Q1	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="margin-top:5pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%;text-decoration:underline">Reclassifications</span></div><div style="margin-top:3pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Certain prior year amounts have been reclassified to conform to current year presentation.</span></div>
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	131400000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	107015000	usd
CY2024Q1	us-gaap	Depreciation Nonproduction DepreciationNonproduction	8389000	usd
CY2023Q1	us-gaap	Depreciation Nonproduction DepreciationNonproduction	8531000	usd
CY2024Q1	us-gaap	Adjustment For Amortization AdjustmentForAmortization	10386000	usd
CY2023Q1	us-gaap	Adjustment For Amortization AdjustmentForAmortization	9424000	usd
CY2024Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	31643000	usd
CY2023Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	28879000	usd
CY2024Q1	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	33147000	usd
CY2023Q1	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	29219000	usd
CY2024Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11059000	usd
CY2023Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8074000	usd
CY2024Q1	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	502000	usd
CY2023Q1	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-180000	usd
CY2023Q1	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	5452000	usd
CY2024Q1	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	850000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	938000	usd
CY2024Q1	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	7800000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	783000	usd
CY2024Q1	seic	Capitalized Contract Costs Net Of Amortization CapitalizedContractCostsNetOfAmortization	-221000	usd
CY2023Q1	seic	Capitalized Contract Costs Net Of Amortization CapitalizedContractCostsNetOfAmortization	-423000	usd
CY2024Q1	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	2068000	usd
CY2023Q1	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-123000	usd
CY2024Q1	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	-280000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Receivables IncreaseDecreaseInOtherReceivables	-6270000	usd
CY2024Q1	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	60386000	usd
CY2023Q1	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	962000	usd
CY2024Q1	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-1268000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	2261000	usd
CY2024Q1	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-25471000	usd
CY2024Q1	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-92000	usd
CY2023Q1	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-563000	usd
CY2024Q1	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-19106000	usd
CY2023Q1	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	7349000	usd
CY2024Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	112294000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	114364000	usd
CY2024Q1	us-gaap	Equity Method Investments EquityMethodInvestments	57291000	usd
CY2024Q1	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	33147000	usd
CY2023Q1	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	29219000	usd
CY2024Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	31643000	usd
CY2023Q1	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	28879000	usd
CY2024Q1	us-gaap	Billed Contract Receivables BilledContractReceivables	136599000	usd
CY2023Q4	us-gaap	Billed Contract Receivables BilledContractReceivables	115356000	usd
CY2024Q1	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	408852000	usd
CY2023Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	372291000	usd
CY2024Q1	us-gaap	Other Receivables Gross Current OtherReceivablesGrossCurrent	17109000	usd
CY2023Q4	us-gaap	Other Receivables Gross Current OtherReceivablesGrossCurrent	14450000	usd
CY2024Q1	seic	Receivables Gross Current ReceivablesGrossCurrent	562560000	usd
CY2023Q4	seic	Receivables Gross Current ReceivablesGrossCurrent	502097000	usd
CY2024Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1165000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	663000	usd
CY2024Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	561395000	usd
CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	501434000	usd
CY2024Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	644036000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	645398000	usd
CY2024Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	475832000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	474034000	usd
CY2024Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	168204000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	171364000	usd
CY2024Q1	us-gaap	Depreciation Nonproduction DepreciationNonproduction	8389000	usd
CY2023Q1	us-gaap	Depreciation Nonproduction DepreciationNonproduction	8531000	usd
CY2024Q1	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	40000000	usd
CY2023Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	40221000	usd
CY2024Q1	seic	Capitalized Contract Cost Amount Capitalized During Period CapitalizedContractCostAmountCapitalizedDuringPeriod	2391000	usd
CY2023Q1	seic	Capitalized Contract Cost Amount Capitalized During Period CapitalizedContractCostAmountCapitalizedDuringPeriod	1744000	usd
CY2024Q1	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	2612000	usd
CY2023Q1	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	2167000	usd
CY2024Q1	us-gaap	Capitalized Contract Cost Impairment Loss CapitalizedContractCostImpairmentLoss	0	usd
CY2024Q1	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	54872000	usd
CY2024Q1	seic	Accumulated Other Comprehensive Income Loss Debt Securities Available For Sale Securities Adjustment Tax AccumulatedOtherComprehensiveIncomeLossDebtSecuritiesAvailableForSaleSecuritiesAdjustmentTax	-2452000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-6875000	usd
CY2023Q4	seic	Accumulated Other Comprehensive Income Loss Debt Securities Available For Sale Securities Adjustment Tax AccumulatedOtherComprehensiveIncomeLossDebtSecuritiesAvailableForSaleSecuritiesAdjustmentTax	-2054000	usd
CY2023Q4	us-gaap	Accrued Salaries Current AccruedSalariesCurrent	107495000	usd
CY2024Q1	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	2445000	usd
CY2023Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	9797000	usd
CY2024Q1	seic	Accrued Voluntary Separation Program Current AccruedVoluntarySeparationProgramCurrent	14657000	usd
CY2023Q4	seic	Accrued Voluntary Separation Program Current AccruedVoluntarySeparationProgramCurrent	21058000	usd
CY2024Q1	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	31780000	usd
CY2023Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	32285000	usd
CY2024Q1	seic	Accrued Sub Advisory Distribution And Other Asset Management Fees Current AccruedSubAdvisoryDistributionAndOtherAssetManagementFeesCurrent	52169000	usd
CY2023Q4	seic	Accrued Sub Advisory Distribution And Other Asset Management Fees Current AccruedSubAdvisoryDistributionAndOtherAssetManagementFeesCurrent	49405000	usd
CY2024Q1	us-gaap	Dividends Payable Current DividendsPayableCurrent	715000	usd
CY2023Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	61104000	usd
CY2024Q1	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	41032000	usd
CY2023Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	4965000	usd
CY2024Q1	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	45186000	usd
CY2023Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	32836000	usd
CY2024Q1	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	242856000	usd
CY2023Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	318945000	usd
CY2024Q1	us-gaap	Financial Instruments Owned Us Government And Agency Obligations At Fair Value FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue	31958000	usd
CY2024Q1	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	204134000	usd
CY2023Q4	us-gaap	Financial Instruments Owned Us Government And Agency Obligations At Fair Value FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue	31334000	usd
CY2023Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	194063000	usd
CY2024Q1	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	598118000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	565588000	usd
CY2024Q1	seic	Debt Securities Available For Sale And Equity Securities Fvni Cost DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNICost	173139000	usd
CY2024Q1	seic	Debt Securities Available For Sale And Equity Securities Fvni Accumulated Gross Unrealized Gain Before Tax DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAccumulatedGrossUnrealizedGainBeforeTax	1556000	usd
CY2024Q1	seic	Debt Securities Available For Sale And Equity Securities Fvni Accumulated Gross Unrealized Loss Before Tax DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAccumulatedGrossUnrealizedLossBeforeTax	10668000	usd
CY2024Q1	seic	Debt Securities Available For Sale And Equity Securities Fvni DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNI	164027000	usd
CY2023Q4	seic	Debt Securities Available For Sale And Equity Securities Fvni Cost DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNICost	163409000	usd
CY2023Q4	seic	Debt Securities Available For Sale And Equity Securities Fvni Accumulated Gross Unrealized Gain Before Tax DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAccumulatedGrossUnrealizedGainBeforeTax	952000	usd
CY2023Q4	seic	Debt Securities Available For Sale And Equity Securities Fvni Accumulated Gross Unrealized Loss Before Tax DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNIAccumulatedGrossUnrealizedLossBeforeTax	8948000	usd
CY2023Q4	seic	Debt Securities Available For Sale And Equity Securities Fvni DebtSecuritiesAvailableForSaleAndEquitySecuritiesFVNI	155413000	usd
CY2024Q1	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-8211000	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	0	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	0	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	5118000	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	4661000	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	20836000	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	18811000	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	110894000	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	102713000	usd
CY2024Q1	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	136848000	usd
CY2024Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	126185000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	0	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	0	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	5679000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	5035000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	31162000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	28084000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	90840000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	85633000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	127681000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	118752000	usd
CY2024Q1	us-gaap	Equity Securities Fv Ni Realized Gain EquitySecuritiesFvNiRealizedGain	595000	usd
CY2024Q1	us-gaap	Equity Securities Fv Ni Realized Loss EquitySecuritiesFvNiRealizedLoss	46000	usd
CY2024Q1	us-gaap	Financial Instruments Owned Us Government And Agency Obligations At Fair Value FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue	31958000	usd
CY2023Q4	us-gaap	Financial Instruments Owned Us Government And Agency Obligations At Fair Value FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue	31334000	usd
CY2024Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11059000	usd
CY2023Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8074000	usd
CY2024Q1	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2213000	usd
CY2023Q1	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1492000	usd
CY2024Q1	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	8846000	usd
CY2023Q1	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	6582000	usd
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Plan Modification Incremental Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost	310000	usd
CY2024Q1	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	115038000	usd
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	18831000	usd
CY2024Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	91066000	usd
CY2024Q1	us-gaap	Share Price SharePrice	71.90
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	55.78
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	15968000	shares
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	5649000	shares
CY2024Q1	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-4154000	usd
CY2024Q1	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	105000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4259000	usd
CY2024Q1	us-gaap	Revenues Revenues	511579000	usd
CY2024Q1	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	347974000	usd
CY2024Q1	us-gaap	Gross Profit GrossProfit	163605000	usd
CY2023Q1	us-gaap	Revenues Revenues	469119000	usd
CY2023Q1	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	336200000	usd
CY2023Q1	us-gaap	Gross Profit GrossProfit	132919000	usd
CY2024Q1	us-gaap	Gross Profit GrossProfit	163605000	usd
CY2023Q1	us-gaap	Gross Profit GrossProfit	132919000	usd
CY2024Q1	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	37754000	usd
CY2023Q1	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	31152000	usd
CY2024Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	125851000	usd
CY2023Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	101767000	usd
CY2024Q1	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	19349000	usd
CY2023Q1	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	19621000	usd
CY2024Q1	us-gaap	Depreciation Nonproduction DepreciationNonproduction	8389000	usd
CY2023Q1	us-gaap	Depreciation Nonproduction DepreciationNonproduction	8531000	usd
CY2024Q1	us-gaap	Adjustment For Amortization AdjustmentForAmortization	10386000	usd
CY2023Q1	us-gaap	Adjustment For Amortization AdjustmentForAmortization	9424000	usd
CY2024Q1	seic	Gross Liability For Unrecognized Tax Benefits Exclusive Of Interest And Penalties GrossLiabilityForUnrecognizedTaxBenefitsExclusiveOfInterestAndPenalties	16383000	usd
CY2023Q4	seic	Gross Liability For Unrecognized Tax Benefits Exclusive Of Interest And Penalties GrossLiabilityForUnrecognizedTaxBenefitsExclusiveOfInterestAndPenalties	15532000	usd
CY2024Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	15849000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	14878000	usd
CY2024Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1655000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1385000	usd
CY2024Q1	seic	Gross Liability For Unrecognized Tax Benefits Exclusive Of Interest And Penalties GrossLiabilityForUnrecognizedTaxBenefitsExclusiveOfInterestAndPenalties	16383000	usd
CY2023Q4	seic	Gross Liability For Unrecognized Tax Benefits Exclusive Of Interest And Penalties GrossLiabilityForUnrecognizedTaxBenefitsExclusiveOfInterestAndPenalties	15532000	usd
CY2024Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1655000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	1385000	usd
CY2024Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	18038000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	16917000	usd
CY2024Q1	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	3658000	usd
CY2023Q4	us-gaap	Liability For Uncertain Tax Positions Current LiabilityForUncertainTaxPositionsCurrent	3837000	usd
CY2024Q1	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	14380000	usd
CY2023Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	13080000	usd
CY2024Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	18038000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	16917000	usd
CY2024Q1	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2024Q1	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2024Q1	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2024Q1	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2024Q1	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2023Q1	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2024Q1	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.029
CY2023Q1	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.029
CY2024Q1	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.001
CY2023Q1	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.001
CY2024Q1	seic	Effective Income Tax Rate Reconciliation Tax Benefit From Stock Option Exercises Percent EffectiveIncomeTaxRateReconciliationTaxBenefitFromStockOptionExercisesPercent	-0.011
CY2023Q1	seic	Effective Income Tax Rate Reconciliation Tax Benefit From Stock Option Exercises Percent EffectiveIncomeTaxRateReconciliationTaxBenefitFromStockOptionExercisesPercent	-0.002
CY2024Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.229
CY2023Q1	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.236
CY2023Q4	us-gaap	Goodwill Goodwill	137333000	usd
CY2024Q1	us-gaap	Goodwill Other Increase Decrease GoodwillOtherIncreaseDecrease	0	usd
CY2024Q1	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-129000	usd
CY2024Q1	us-gaap	Goodwill Goodwill	137204000	usd
CY2024Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3403000	usd
CY2023Q1	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3055000	usd
CY2024Q1	us-gaap	Revenues Revenues	511579000	usd
CY2024Q1	us-gaap	Revenues Revenues	511579000	usd
CY2023Q1	us-gaap	Revenues Revenues	469119000	usd
CY2023Q1	us-gaap	Revenues Revenues	469119000	usd

Files In Submission

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0000350894-24-000084-index-headers.html	Edgar Link	pending
0000350894-24-000084-index.html	Edgar Link	pending
0000350894-24-000084.txt	Edgar Link	pending
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seic-20240331_htm.xml	Edgar Link	completed
seic-20240331_pre.xml	Edgar Link	unprocessable
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seic-20240331_cal.xml	Edgar Link	unprocessable

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$SEIC
SEI INVESTMENTS CO Stock $seic

2024 Q2 Form 10-Q Financial Statement

#000035089424000084 Filed on April 29, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SEIC SEI INVESTMENTS CO Stock $seic

2024 Q2 Form 10-Q Financial Statement

#000035089424000084 Filed on April 29, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SEIC
SEI INVESTMENTS CO Stock $seic