$PIPR
PIPER SANDLER COMPANIES Stock $pipr

$pipr Overview Financials Valuation SEC Filings Company Website

2020 Q3 Form 10-Q Financial Statement

#000123024520000134 Filed on November 05, 2020

Income Statement

Concept	2020 Q3	2019 Q3
Revenue	$307.2M	$202.9M
YoY Change	51.38%	-3.22%
Cost Of Revenue	$7.100M	$5.900M
YoY Change	20.34%	1.72%
Gross Profit	$300.1M	$197.0M
YoY Change	52.34%	-3.38%
Gross Profit Margin	97.7%	97.09%
Selling, General & Admin	$244.6M	$158.7M
YoY Change	54.13%	-3.05%
% of Gross Profit	81.51%	80.56%
Research & Development	$11.17M	$7.885M
YoY Change	41.65%	15.29%
% of Gross Profit	3.72%	4.0%
Depreciation & Amortization	$14.30M	$3.500M
YoY Change	308.57%	-25.53%
% of Gross Profit	4.77%	1.78%
Operating Expenses	$11.17M	$7.885M
YoY Change	41.65%	15.29%
Operating Profit	$288.9M	$189.1M
YoY Change	52.78%	-4.03%
Interest Expense
YoY Change
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$24.65M	$21.04M
YoY Change	17.18%	-24.3%
Income Tax	$5.674M	$6.717M
% Of Pretax Income	23.02%	31.93%
Net Earnings	$11.62M	$43.24M
YoY Change	-73.13%	96.35%
Net Earnings / Revenue	3.78%	21.31%
Basic Earnings Per Share	$0.84	$3.09
Diluted Earnings Per Share	$0.78	$3.01
COMMON SHARES
Basic Shares Outstanding	13.78M shares	13.71M shares
Diluted Shares Outstanding	14.85M shares	14.09M shares

Balance Sheet

Concept	2020 Q3	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$371.8M	$24.00M
YoY Change	1449.17%	-65.12%
Cash & Equivalents	$371.8M	$24.01M
Short-Term Investments
Other Short-Term Assets	$13.10M	$10.30M
YoY Change	27.18%	28.75%
Inventory
Prepaid Expenses
Receivables	$148.7M	$167.9M
Other Receivables	$61.60M	$55.50M
Total Short-Term Assets	$595.2M	$257.7M
YoY Change	130.97%	-9.36%
LONG-TERM ASSETS
Property, Plant & Equipment	$38.99M	$30.62M
YoY Change	27.34%	-2.07%
Goodwill	$215.3M	$88.22M
YoY Change	144.07%	7.77%
Intangibles	$156.2M	$16.75M
YoY Change	832.38%	11.74%
Long-Term Investments	$7.443M	$6.027M
YoY Change	23.49%	-13.65%
Other Assets	$537.2M	$493.9M
YoY Change	8.77%	-33.29%
Total Long-Term Assets	$1.226B	$1.086B
YoY Change	12.87%	-10.17%
TOTAL ASSETS
Total Short-Term Assets	$595.2M	$257.7M
Total Long-Term Assets	$1.226B	$1.086B
Total Assets	$1.821B	$1.344B
YoY Change	35.52%	-10.02%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$527.6M	$312.8M
YoY Change	68.67%	0.87%
Deferred Revenue
YoY Change
Short-Term Debt	$74.97M	$49.96M
YoY Change	50.05%	0.01%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$590.6M	$317.7M
YoY Change	85.9%	0.38%
LONG-TERM LIABILITIES
Long-Term Debt	$220.0M	$50.00M
YoY Change	340.0%	-71.43%
Other Long-Term Liabilities	$152.2M	$214.1M
YoY Change	-28.91%	-15.91%
Total Long-Term Liabilities	$372.2M	$264.1M
YoY Change	40.93%	-38.52%
TOTAL LIABILITIES
Total Short-Term Liabilities	$590.6M	$317.7M
Total Long-Term Liabilities	$372.2M	$264.1M
Total Liabilities	$962.8M	$581.7M
YoY Change	65.51%	-22.02%
SHAREHOLDERS EQUITY
Retained Earnings	$234.1M	$225.2M
YoY Change	3.93%	32.56%
Common Stock	$826.9M	$757.6M
YoY Change	9.15%	-5.49%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$290.4M	$284.6M
YoY Change	2.06%	5.38%
Treasury Stock Shares	5.781M shares	5.815M shares
Shareholders Equity	$769.5M	$696.7M
YoY Change
Total Liabilities & Shareholders Equity	$1.821B	$1.344B
YoY Change	35.52%	-10.02%

Cashflow Statement

Concept	2020 Q3	2019 Q3
OPERATING ACTIVITIES
Net Income	$11.62M	$43.24M
YoY Change	-73.13%	96.35%
Depreciation, Depletion And Amortization	$14.30M	$3.500M
YoY Change	308.57%	-25.53%
Cash From Operating Activities	$158.5M	-$26.00M
YoY Change	-709.62%	-138.35%
INVESTING ACTIVITIES
Capital Expenditures	-$3.600M	-$1.900M
YoY Change	89.47%	-68.85%
Acquisitions
YoY Change
Other Investing Activities	$0.00	$34.30M
YoY Change	-100.0%
Cash From Investing Activities	-$3.600M	$32.40M
YoY Change	-111.11%	-631.15%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-19.60M	-5.200M
YoY Change	276.92%	-72.49%
NET CHANGE
Cash From Operating Activities	158.5M	-26.00M
Cash From Investing Activities	-3.600M	32.40M
Cash From Financing Activities	-19.60M	-5.200M
Net Change In Cash	135.3M	1.200M
YoY Change	11175.0%	-97.2%
FREE CASH FLOW
Cash From Operating Activities	$158.5M	-$26.00M
Capital Expenditures	-$3.600M	-$1.900M
Free Cash Flow	$162.1M	-$24.10M
YoY Change	-772.61%	-132.61%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Central Index Key EntityCentralIndexKey	0001230245
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	73590000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	65991000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	73986000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	40864000	USD
CY2020Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2020Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	19532686	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	19526533	shares
CY2020Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	13751430	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	13717315	shares
	dei	Document Period End Date DocumentPeriodEndDate	2020-09-30
CY2020Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	5781256	shares
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	5809218	shares
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-31720
	dei	Entity Registrant Name EntityRegistrantName	PIPER SANDLER COMPANIES
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	30-0168701
	dei	Entity Address Address Line1 EntityAddressAddressLine1	800 Nicollet Mall, Suite 900
	dei	Entity Address City Or Town EntityAddressCityOrTown	Minneapolis
	dei	Entity Address State Or Province EntityAddressStateOrProvince	MN
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	55402
	dei	City Area Code CityAreaCode	(612)
	dei	Local Phone Number LocalPhoneNumber	303-6000
	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01 per share
	dei	Trading Symbol TradingSymbol	PIPR
	dei	Security Exchange Name SecurityExchangeName	NYSE
	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
CY2020Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	17868182	shares
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	371826000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	250018000	USD
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CY2020Q3	us-gaap	Financial Instruments Owned And Not Pledged At Fair Value FinancialInstrumentsOwnedAndNotPledgedAtFairValue	258452000	USD
CY2019Q4	us-gaap	Financial Instruments Owned And Not Pledged At Fair Value FinancialInstrumentsOwnedAndNotPledgedAtFairValue	434088000	USD
CY2020Q3	us-gaap	Financial Instruments Owned And Pledged As Collateral At Fair Value FinancialInstrumentsOwnedAndPledgedAsCollateralAtFairValue	191484000	USD
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CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	38991000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	29850000	USD
CY2020Q3	us-gaap	Goodwill Goodwill	215309000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	87649000	USD
CY2020Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	156164000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	16686000	USD
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CY2019Q4	pipr	Investments Excluding Financial Instruments Owned InvestmentsExcludingFinancialInstrumentsOwned	158141000	USD
CY2020Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	87217000	USD
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CY2020Q3	us-gaap	Assets Assets	1821174000	USD
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CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	49978000	USD
CY2020Q3	us-gaap	Long Term Debt LongTermDebt	195000000	USD
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CY2020Q3	srt	Payables To Broker Dealers And Clearing Organizations PayablesToBrokerDealersAndClearingOrganizations	13008000	USD
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CY2020Q3	us-gaap	Financial Instruments Sold Not Yet Purchased At Fair Value FinancialInstrumentsSoldNotYetPurchasedAtFairValue	152190000	USD
CY2019Q4	us-gaap	Financial Instruments Sold Not Yet Purchased At Fair Value FinancialInstrumentsSoldNotYetPurchasedAtFairValue	185425000	USD
CY2020Q3	us-gaap	Employee Related Liabilities Current And Noncurrent EmployeeRelatedLiabilitiesCurrentAndNoncurrent	355820000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current And Noncurrent EmployeeRelatedLiabilitiesCurrentAndNoncurrent	300527000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	102366000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	57169000	USD
CY2020Q3	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	69449000	USD
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CY2019Q4	us-gaap	Liabilities Liabilities	822191000	USD
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CY2019Q4	us-gaap	Common Stock Value CommonStockValue	195000	USD
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CY2020Q3	us-gaap	Treasury Stock Value TreasuryStockValue	290440000	USD
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CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1035000	USD
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CY2020Q3	us-gaap	Minority Interest MinorityInterest	88881000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	75245000	USD
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	us-gaap	Investment Banking Revenue InvestmentBankingRevenue	562060000	USD
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CY2020Q3	pipr	Institutional Brokerage Revenue InstitutionalBrokerageRevenue	86764000	USD
CY2019Q3	pipr	Institutional Brokerage Revenue InstitutionalBrokerageRevenue	46814000	USD
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	us-gaap	Revenues Revenues	843518000	USD
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CY2020Q3	pipr	Other Interest Expense OtherInterestExpense	3455000	USD
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	pipr	Other Interest Expense OtherInterestExpense	11193000	USD
	pipr	Other Interest Expense OtherInterestExpense	7813000	USD
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	us-gaap	Occupancy Net OccupancyNet	39356000	USD
	us-gaap	Occupancy Net OccupancyNet	26368000	USD
CY2020Q3	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	11169000	USD
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	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	33899000	USD
	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	22599000	USD
CY2020Q3	us-gaap	Business Development BusinessDevelopment	537000	USD
CY2019Q3	us-gaap	Business Development BusinessDevelopment	6528000	USD
	us-gaap	Business Development BusinessDevelopment	13164000	USD
	us-gaap	Business Development BusinessDevelopment	21355000	USD
CY2020Q3	pipr	Dealrelatedexpenses Dealrelatedexpenses	13543000	USD
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	pipr	Dealrelatedexpenses Dealrelatedexpenses	29687000	USD
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CY2020Q3	us-gaap	Floor Brokerage Exchange And Clearance Fees FloorBrokerageExchangeAndClearanceFees	3666000	USD
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	us-gaap	Floor Brokerage Exchange And Clearance Fees FloorBrokerageExchangeAndClearanceFees	6593000	USD
CY2020Q3	pipr	Restructuring Chargesand Integration Related Costs RestructuringChargesandIntegrationRelatedCosts	1592000	USD
CY2019Q3	pipr	Restructuring Chargesand Integration Related Costs RestructuringChargesandIntegrationRelatedCosts	6143000	USD
	pipr	Restructuring Chargesand Integration Related Costs RestructuringChargesandIntegrationRelatedCosts	7218000	USD
	pipr	Restructuring Chargesand Integration Related Costs RestructuringChargesandIntegrationRelatedCosts	12538000	USD
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11607000	USD
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	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2735000	USD
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	us-gaap	Other Noninterest Expense OtherNoninterestExpense	23656000	USD
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	us-gaap	Noninterest Expense NoninterestExpense	834308000	USD
	us-gaap	Noninterest Expense NoninterestExpense	490598000	USD
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CY2020Q3	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	5674000	USD
CY2019Q3	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	6717000	USD
	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-1400000	USD
	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	10729000	USD
CY2020Q3	pipr	Income Lossfrom Continuing Operations Including Portion Attributedto Non Controllinginterests IncomeLossfromContinuingOperationsIncludingPortionAttributedtoNonControllinginterests	18975000	USD
CY2019Q3	pipr	Income Lossfrom Continuing Operations Including Portion Attributedto Non Controllinginterests IncomeLossfromContinuingOperationsIncludingPortionAttributedtoNonControllinginterests	14318000	USD
	pipr	Income Lossfrom Continuing Operations Including Portion Attributedto Non Controllinginterests IncomeLossfromContinuingOperationsIncludingPortionAttributedtoNonControllinginterests	-583000	USD
	pipr	Income Lossfrom Continuing Operations Including Portion Attributedto Non Controllinginterests IncomeLossfromContinuingOperationsIncludingPortionAttributedtoNonControllinginterests	54368000	USD
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	23772000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	18975000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	40395000	USD
	us-gaap	Profit Loss ProfitLoss	-583000	USD
	us-gaap	Profit Loss ProfitLoss	78140000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	7358000	USD
CY2019Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-2847000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1073000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	5087000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	11617000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	43242000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1656000	USD
	us-gaap	Net Income Loss NetIncomeLoss	73053000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	11617000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	42442000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-1656000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	69529000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	11617000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	17165000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-1656000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	49281000	USD
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2019Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	26077000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	23772000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	11617000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	43242000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1656000	USD
	us-gaap	Net Income Loss NetIncomeLoss	73053000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.84
CY2019Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.23
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.12
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	3.46
CY2020Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0
CY2019Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	1.87
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	1.69
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.84
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.09
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.12
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.15
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.78
CY2019Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.20
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.12
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	3.37
CY2020Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0
CY2019Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	1.82
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	1.64
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.78
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.01
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.12
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.01
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.30
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.38
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.63
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.14
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	13778000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	13708000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	13789000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	13502000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14853000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14085000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14580000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	13882000	shares
CY2020Q3	us-gaap	Profit Loss ProfitLoss	18975000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	40395000	USD
	us-gaap	Profit Loss ProfitLoss	-583000	USD
	us-gaap	Profit Loss ProfitLoss	78140000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	577000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-179000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-163000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-65000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	19552000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	40216000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-746000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	78075000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	7358000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-2847000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1073000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5087000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	12194000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	43063000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1819000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	72988000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	806528000	USD
CY2020Q1	us-gaap	Profit Loss ProfitLoss	-22255000	USD
CY2020Q1	us-gaap	Dividends Dividends	16066000	USD
CY2020Q1	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	44195000	USD
CY2020Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	9225000	USD
CY2020Q1	pipr	Adjustmentsfor Stock Issued During Period Value Treasury Stock Reissued Restricted Stock Vestings AdjustmentsforStockIssuedDuringPeriodValueTreasuryStockReissuedRestrictedStockVestings	0	USD
CY2020Q1	pipr	Adjustmentsfor Stock Issued During Period Value Treasury Stock Issued Deal Consideration AdjustmentsforStockIssuedDuringPeriodValueTreasuryStockIssuedDealConsideration	2723000	USD
CY2020Q1	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	8068000	USD
CY2020Q1	us-gaap	Deferred Compensation Arrangement With Individual Fair Value Of Shares Issued DeferredCompensationArrangementWithIndividualFairValueOfSharesIssued	116000	USD
CY2020Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-672000	USD
CY2020Q1	pipr	Noncontrolling Interest Increase Decrease From Capital Contributionsnetofwithdrawals NoncontrollingInterestIncreaseDecreaseFromCapitalContributionsnetofwithdrawals	-1201000	USD
CY2020Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	796075000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	2697000	USD
CY2020Q2	us-gaap	Dividends Dividends	2753000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	17654000	USD
CY2020Q2	pipr	Adjustmentsfor Stock Issued During Period Value Treasury Stock Reissued Restricted Stock Vestings AdjustmentsforStockIssuedDuringPeriodValueTreasuryStockReissuedRestrictedStockVestings	0	USD
CY2020Q2	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	189000	USD
CY2020Q2	us-gaap	Deferred Compensation Arrangement With Individual Fair Value Of Shares Issued DeferredCompensationArrangementWithIndividualFairValueOfSharesIssued	299000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-68000	USD
CY2020Q2	pipr	Noncontrolling Interest Increase Decrease From Capital Contributionsnetofwithdrawals NoncontrollingInterestIncreaseDecreaseFromCapitalContributionsnetofwithdrawals	-3000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	813712000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	18975000	USD
CY2019Q1	us-gaap	Deferred Compensation Arrangement With Individual Fair Value Of Shares Issued DeferredCompensationArrangementWithIndividualFairValueOfSharesIssued	87000	USD
CY2020Q3	us-gaap	Dividends Dividends	4139000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	19689000	USD
CY2020Q3	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	3905000	USD
CY2020Q3	pipr	Adjustmentsfor Stock Issued During Period Value Treasury Stock Reissued Restricted Stock Vestings AdjustmentsforStockIssuedDuringPeriodValueTreasuryStockReissuedRestrictedStockVestings	0	USD
CY2020Q3	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	334000	USD
CY2020Q3	us-gaap	Deferred Compensation Arrangement With Individual Fair Value Of Shares Issued DeferredCompensationArrangementWithIndividualFairValueOfSharesIssued	33000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	577000	USD
CY2020Q3	pipr	Noncontrolling Interest Increase Decrease From Capital Contributionsnetofwithdrawals NoncontrollingInterestIncreaseDecreaseFromCapitalContributionsnetofwithdrawals	13767000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	858375000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	730416000	USD
CY2019Q1	us-gaap	Profit Loss ProfitLoss	18806000	USD
CY2019Q1	us-gaap	Dividends Dividends	19947000	USD
CY2019Q1	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	23826000	USD
CY2019Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	32000	USD
CY2019Q1	pipr	Adjustmentsfor Stock Issued During Period Value Treasury Stock Reissued Restricted Stock Vestings AdjustmentsforStockIssuedDuringPeriodValueTreasuryStockReissuedRestrictedStockVestings	0	USD
CY2019Q1	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	39695000	USD
CY2019Q3	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	117000	USD
CY2019Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	215000	USD
CY2019Q1	pipr	Noncontrolling Interest Increase Decrease From Capital Contributionsnetofwithdrawals NoncontrollingInterestIncreaseDecreaseFromCapitalContributionsnetofwithdrawals	-5000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	713671000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	18939000	USD
CY2019Q2	us-gaap	Dividends Dividends	5234000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	1448000	USD
CY2019Q2	pipr	Adjustmentsfor Stock Issued During Period Value Treasury Stock Reissued Restricted Stock Vestings AdjustmentsforStockIssuedDuringPeriodValueTreasuryStockReissuedRestrictedStockVestings	0	USD
CY2019Q2	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	10499000	USD
CY2019Q2	us-gaap	Deferred Compensation Arrangement With Individual Fair Value Of Shares Issued DeferredCompensationArrangementWithIndividualFairValueOfSharesIssued	334000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-101000	USD
CY2019Q2	pipr	Noncontrolling Interest Increase Decrease From Capital Contributionsnetofwithdrawals NoncontrollingInterestIncreaseDecreaseFromCapitalContributionsnetofwithdrawals	7227000	USD
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	725785000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	40395000	USD
CY2019Q3	us-gaap	Dividends Dividends	5221000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	1208000	USD
CY2019Q3	pipr	Adjustmentsfor Stock Issued During Period Value Treasury Stock Reissued Restricted Stock Vestings AdjustmentsforStockIssuedDuringPeriodValueTreasuryStockReissuedRestrictedStockVestings	0	USD
CY2019Q3	us-gaap	Deferred Compensation Arrangement With Individual Fair Value Of Shares Issued DeferredCompensationArrangementWithIndividualFairValueOfSharesIssued	151000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-179000	USD
CY2019Q3	pipr	Noncontrolling Interest Increase Decrease From Capital Contributionsnetofwithdrawals NoncontrollingInterestIncreaseDecreaseFromCapitalContributionsnetofwithdrawals	82000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	762104000	USD
	us-gaap	Profit Loss ProfitLoss	-583000	USD
	us-gaap	Profit Loss ProfitLoss	78140000	USD
	us-gaap	Depreciation Depreciation	8047000	USD
	us-gaap	Depreciation Depreciation	7011000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	19182000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-17997000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	80292000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	18964000	USD
	pipr	Amortizationofintangibleassetsincludingcontinuinganddiscontinuedoperations Amortizationofintangibleassetsincludingcontinuinganddiscontinuedoperations	33122000	USD
	pipr	Amortizationofintangibleassetsincludingcontinuinganddiscontinuedoperations Amortizationofintangibleassetsincludingcontinuinganddiscontinuedoperations	8200000	USD
	pipr	Amortization Of Loans To Employees AmortizationOfLoansToEmployees	2554000	USD
	pipr	Amortization Of Loans To Employees AmortizationOfLoansToEmployees	3322000	USD
	us-gaap	Increase Decrease In Brokerage Receivables IncreaseDecreaseInBrokerageReceivables	-323871000	USD
	us-gaap	Increase Decrease In Brokerage Receivables IncreaseDecreaseInBrokerageReceivables	-61567000	USD
	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	-156591000	USD
	us-gaap	Increase Decrease In Financial Instruments Used In Operating Activities IncreaseDecreaseInFinancialInstrumentsUsedInOperatingActivities	6480000	USD
	pipr	Increase Decreasein Investments Excluding Financial Instruments Owned IncreaseDecreaseinInvestmentsExcludingFinancialInstrumentsOwned	12422000	USD
	pipr	Increase Decreasein Investments Excluding Financial Instruments Owned IncreaseDecreaseinInvestmentsExcludingFinancialInstrumentsOwned	3662000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	25334000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	38715000	USD
	us-gaap	Increase Decrease In Payables To Broker Dealers IncreaseDecreaseInPayablesToBrokerDealers	5494000	USD
	us-gaap	Increase Decrease In Payables To Broker Dealers IncreaseDecreaseInPayablesToBrokerDealers	-3800000	USD
	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-14399000	USD
	us-gaap	Increase Decrease In Employee Related Liabilities IncreaseDecreaseInEmployeeRelatedLiabilities	-121148000	USD
	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-5246000	USD
	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	16830000	USD
	us-gaap	Increase Decrease In Assets Held For Sale IncreaseDecreaseInAssetsHeldForSale	0	USD
	us-gaap	Increase Decrease In Assets Held For Sale IncreaseDecreaseInAssetsHeldForSale	-20901000	USD
	pipr	Increasedecreaseinliabilitiesheldforsale Increasedecreaseinliabilitiesheldforsale	0	USD
	pipr	Increasedecreaseinliabilitiesheldforsale Increasedecreaseinliabilitiesheldforsale	7915000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	532805000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	18186000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	393522000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	18617000	USD
	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	10158000	USD
	us-gaap	Payments For Proceeds From Productive Assets PaymentsForProceedsFromProductiveAssets	4990000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-403680000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	29274000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	24988000	USD
	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	9000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	22958000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	30402000	USD
	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	12563000	USD
	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	7304000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	21721000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	50343000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-7128000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-73432000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-189000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-387000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	121808000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-26359000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	250018000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	50364000	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	371826000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	24005000	USD
	us-gaap	Interest Paid InterestPaid	11115000	USD
	us-gaap	Interest Paid InterestPaid	8046000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	14589000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	8463000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2020Q3	us-gaap	Financial Instruments Owned Corporate Equities At Fair Value FinancialInstrumentsOwnedCorporateEquitiesAtFairValue	5275000	USD
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	846653000	USD
	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	865263000	USD
CY2019Q3	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	285849000	USD
	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	-3349000	USD
	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	9267000	USD
CY2019Q3	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	-1761000	USD
CY2019Q4	us-gaap	Financial Instruments Owned Corporate Equities At Fair Value FinancialInstrumentsOwnedCorporateEquitiesAtFairValue	3046000	USD
CY2020Q3	pipr	Financial Instruments Owned Convertible Debt Securitiesat Fair Value FinancialInstrumentsOwnedConvertibleDebtSecuritiesatFairValue	144181000	USD
CY2019Q4	pipr	Financial Instruments Owned Convertible Debt Securitiesat Fair Value FinancialInstrumentsOwnedConvertibleDebtSecuritiesatFairValue	146406000	USD
CY2020Q3	us-gaap	Financial Instruments Owned Corporate Debt At Fair Value FinancialInstrumentsOwnedCorporateDebtAtFairValue	19689000	USD
CY2019Q4	us-gaap	Financial Instruments Owned Corporate Debt At Fair Value FinancialInstrumentsOwnedCorporateDebtAtFairValue	28176000	USD
CY2020Q3	pipr	Financial Instruments Owned Taxable Municipal Bondsat Fair Value FinancialInstrumentsOwnedTaxableMunicipalBondsatFairValue	14222000	USD
CY2019Q4	pipr	Financial Instruments Owned Taxable Municipal Bondsat Fair Value FinancialInstrumentsOwnedTaxableMunicipalBondsatFairValue	22570000	USD
CY2020Q3	pipr	Financial Instruments Owned Nontaxable Municipal Bondsat Fair Value FinancialInstrumentsOwnedNontaxableMunicipalBondsatFairValue	80311000	USD
CY2019Q4	pipr	Financial Instruments Owned Nontaxable Municipal Bondsat Fair Value FinancialInstrumentsOwnedNontaxableMunicipalBondsatFairValue	222192000	USD
CY2020Q3	pipr	Financial Instruments Owned Municipal Notesat Fair Value FinancialInstrumentsOwnedMunicipalNotesatFairValue	103815000	USD
CY2019Q4	pipr	Financial Instruments Owned Municipal Notesat Fair Value FinancialInstrumentsOwnedMunicipalNotesatFairValue	67901000	USD
CY2020Q3	us-gaap	Financial Instruments Owned Mortgages Mortgage Backed And Asset Backed Securities At Fair Value FinancialInstrumentsOwnedMortgagesMortgageBackedAndAssetBackedSecuritiesAtFairValue	13000	USD
CY2019Q4	us-gaap	Financial Instruments Owned Mortgages Mortgage Backed And Asset Backed Securities At Fair Value FinancialInstrumentsOwnedMortgagesMortgageBackedAndAssetBackedSecuritiesAtFairValue	13000	USD
CY2020Q3	pipr	Financial Instruments Owned Us Govtand Agency Obligationsat Fair Value FinancialInstrumentsOwnedUSGovtandAgencyObligationsatFairValue	55860000	USD
CY2019Q4	pipr	Financial Instruments Owned Us Govtand Agency Obligationsat Fair Value FinancialInstrumentsOwnedUSGovtandAgencyObligationsatFairValue	51773000	USD
CY2020Q3	pipr	Financial Instruments Owned Us Treasury Securitiesat Fair Value FinancialInstrumentsOwnedUSTreasurySecuritiesatFairValue	568000	USD
CY2019Q4	pipr	Financial Instruments Owned Us Treasury Securitiesat Fair Value FinancialInstrumentsOwnedUSTreasurySecuritiesatFairValue	77303000	USD
CY2020Q3	us-gaap	Financial Instruments Owned Derivatives And Other Contractual Agreements At Fair Value FinancialInstrumentsOwnedDerivativesAndOtherContractualAgreementsAtFairValue	26002000	USD
CY2019Q4	us-gaap	Financial Instruments Owned Derivatives And Other Contractual Agreements At Fair Value FinancialInstrumentsOwnedDerivativesAndOtherContractualAgreementsAtFairValue	20382000	USD
CY2020Q3	us-gaap	Financial Instruments Owned At Fair Value FinancialInstrumentsOwnedAtFairValue	449936000	USD
CY2019Q4	us-gaap	Financial Instruments Owned At Fair Value FinancialInstrumentsOwnedAtFairValue	639762000	USD
CY2020Q3	us-gaap	Financial Instruments Sold Not Yet Purchased Corporate Equities FinancialInstrumentsSoldNotYetPurchasedCorporateEquities	76308000	USD
CY2019Q4	us-gaap	Financial Instruments Sold Not Yet Purchased Corporate Equities FinancialInstrumentsSoldNotYetPurchasedCorporateEquities	94036000	USD
CY2020Q3	us-gaap	Financial Instruments Sold Not Yet Purchased Corporate Debt FinancialInstrumentsSoldNotYetPurchasedCorporateDebt	17988000	USD
CY2019Q4	us-gaap	Financial Instruments Sold Not Yet Purchased Corporate Debt FinancialInstrumentsSoldNotYetPurchasedCorporateDebt	10311000	USD
CY2020Q3	pipr	Financial Instruments Sold Notyet Purchased Us Govtand Agency Obligations FinancialInstrumentsSoldNotyetPurchasedUSGovtandAgencyObligations	1344000	USD
CY2019Q4	pipr	Financial Instruments Sold Notyet Purchased Us Govtand Agency Obligations FinancialInstrumentsSoldNotyetPurchasedUSGovtandAgencyObligations	9935000	USD
CY2020Q3	pipr	Financial Instruments Sold Notyet Purchased Us Treasury Securities FinancialInstrumentsSoldNotyetPurchasedUSTreasurySecurities	50410000	USD
CY2019Q4	pipr	Financial Instruments Sold Notyet Purchased Us Treasury Securities FinancialInstrumentsSoldNotyetPurchasedUSTreasurySecurities	67090000	USD
CY2020Q3	us-gaap	Financial Instruments Sold Not Yet Purchased Derivatives And Other Contracts FinancialInstrumentsSoldNotYetPurchasedDerivativesAndOtherContracts	6140000	USD
CY2019Q4	us-gaap	Financial Instruments Sold Not Yet Purchased Derivatives And Other Contracts FinancialInstrumentsSoldNotYetPurchasedDerivativesAndOtherContracts	4053000	USD
CY2020Q3	us-gaap	Financial Instruments Sold Not Yet Purchased At Fair Value FinancialInstrumentsSoldNotYetPurchasedAtFairValue	152190000	USD
CY2019Q4	us-gaap	Financial Instruments Sold Not Yet Purchased At Fair Value FinancialInstrumentsSoldNotYetPurchasedAtFairValue	185425000	USD
CY2020Q3	us-gaap	Financial Instruments Owned And Pledged As Collateral At Fair Value FinancialInstrumentsOwnedAndPledgedAsCollateralAtFairValue	191500000	USD
CY2019Q4	us-gaap	Financial Instruments Owned And Pledged As Collateral At Fair Value FinancialInstrumentsOwnedAndPledgedAsCollateralAtFairValue	205700000	USD
CY2020Q3	pipr	Derivative Fair Valueof Securities Postedas Collateral DerivativeFairValueofSecuritiesPostedasCollateral	0	USD
CY2019Q4	pipr	Derivative Fair Valueof Securities Postedas Collateral DerivativeFairValueofSecuritiesPostedasCollateral	0	USD
	pipr	Transfersbetweenfairvaluelevels Transfersbetweenfairvaluelevels	0	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	120692000	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	15957000	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	1323000	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2020Q3	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Realized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRealizedGainLossIncludedInEarnings	1216000	USD
CY2020Q3	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Unrealized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetUnrealizedGainLossIncludedInEarnings	10117000	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	146659000	USD
CY2020Q3	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Unrealized Gain Losson Assets Heldat Period End FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainLossonAssetsHeldatPeriodEnd	10181000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	3212000	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	880000	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	0	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	0	USD
CY2020Q3	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Realized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityRealizedGainLossIncludedInEarnings	880000	USD
CY2020Q3	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Unrealized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityUnrealizedGainLossIncludedInEarnings	157000	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	3369000	USD
CY2020Q3	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Unrealized Gain Losson Liabilities Heldat Period End FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainLossonLiabilitiesHeldatPeriodEnd	679000	USD
CY2019Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	132569000	USD
CY2019Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	15623000	USD
CY2019Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	12772000	USD
CY2019Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2019Q3	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Realized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRealizedGainLossIncludedInEarnings	2901000	USD
CY2019Q3	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Unrealized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetUnrealizedGainLossIncludedInEarnings	-6004000	USD
CY2019Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	132317000	USD
CY2019Q3	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Unrealized Gain Losson Assets Heldat Period End FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainLossonAssetsHeldatPeriodEnd	-3103000	USD
CY2019Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	4418000	USD
CY2019Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	3576000	USD
CY2019Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	0	USD
CY2019Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	0	USD
CY2019Q3	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Realized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityRealizedGainLossIncludedInEarnings	3576000	USD
CY2019Q3	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Unrealized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityUnrealizedGainLossIncludedInEarnings	487000	USD
CY2019Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	4905000	USD
CY2019Q3	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Unrealized Gain Losson Liabilities Heldat Period End FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainLossonLiabilitiesHeldatPeriodEnd	1860000	USD
CY2019Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	132350000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	16990000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	1548000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	130000	USD
	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Realized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRealizedGainLossIncludedInEarnings	-4977000	USD
	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Unrealized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetUnrealizedGainLossIncludedInEarnings	3974000	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	146659000	USD
	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Unrealized Gain Losson Assets Heldat Period End FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainLossonAssetsHeldatPeriodEnd	-1519000	USD
CY2019Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	1563000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	13627000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	-371000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	0	USD
	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Realized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityRealizedGainLossIncludedInEarnings	13256000	USD
	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Unrealized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityUnrealizedGainLossIncludedInEarnings	1806000	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	3369000	USD
	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Unrealized Gain Losson Liabilities Heldat Period End FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainLossonLiabilitiesHeldatPeriodEnd	3358000	USD
CY2018Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	108036000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	23623000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	13114000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	783000	USD
	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Realized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRealizedGainLossIncludedInEarnings	3214000	USD
	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Unrealized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetUnrealizedGainLossIncludedInEarnings	11341000	USD
CY2019Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	132317000	USD
	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Unrealized Gain Losson Assets Heldat Period End FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainLossonAssetsHeldatPeriodEnd	13955000	USD
CY2018Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	4202000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues	12398000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationLiabilityTransfersOutOfLevel3	0	USD
	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Realized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityRealizedGainLossIncludedInEarnings	12398000	USD
	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Unrealized Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityUnrealizedGainLossIncludedInEarnings	703000	USD
CY2019Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	4905000	USD
	pipr	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Unrealized Gain Losson Liabilities Heldat Period End FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisUnrealizedGainLossonLiabilitiesHeldatPeriodEnd	4905000	USD
	us-gaap	Due To And From Broker Dealers And Clearing Organizations Disclosure DueToAndFromBrokerDealersAndClearingOrganizationsDisclosure	<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Receivables from and Payables to Brokers, Dealers and Clearing Organizations</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.853%"><tr><td style="width:1.0%"/><td style="width:68.006%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.541%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:1.410%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.543%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">September 30,</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">December 31,</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-style:italic;font-weight:400;line-height:100%">(Amounts in thousands)</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2019</span></td></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Receivable from clearing organizations</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">101,599</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">260,436 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Receivable from brokers and dealers</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">47,135</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">19,161 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Other</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">3,178</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3,511 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 6.75pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total receivables from brokers, dealers and clearing organizations</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">151,912</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">283,108 </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr></table></div><div><span><br/></span></div><div style="margin-bottom:5pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:99.853%"><tr><td style="width:1.0%"/><td style="width:68.006%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.541%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:1.410%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:13.543%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">September 30,</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">December 31,</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-style:italic;font-weight:400;line-height:100%">(Amounts in thousands)</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2020</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2019</span></td></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Payable to brokers and dealers</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">13,008</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">7,514 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 6.75pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total payables to brokers, dealers and clearing organizations</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">13,008</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">7,514 </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:middle"/></tr></table></div>Under the Company's fully disclosed clearing agreement, the majority of its securities inventories and all of its customer activities are held by or cleared through Pershing LLC ("Pershing"). The Company has also established an arrangement to obtain financing from Pershing related to the majority of its trading activities. Financing under this arrangement is secured primarily by securities, and collateral limitations could reduce the amount of funding available under this arrangement. The funding is at the discretion of Pershing and could be denied. The Company's clearing arrangement activities are recorded net from trading activity. The Company's fully disclosed clearing agreement includes a covenant requiring Piper Sandler to maintain excess net capital of $120 million.
CY2020Q3	us-gaap	Receivables From Clearing Organizations ReceivablesFromClearingOrganizations	101599000	USD
CY2019Q4	us-gaap	Receivables From Clearing Organizations ReceivablesFromClearingOrganizations	260436000	USD
CY2020Q3	us-gaap	Due From Correspondent Brokers DueFromCorrespondentBrokers	47135000	USD
CY2019Q4	us-gaap	Due From Correspondent Brokers DueFromCorrespondentBrokers	19161000	USD
CY2020Q3	us-gaap	Other Receivables From Broker Dealers And Clearing Organizations OtherReceivablesFromBrokerDealersAndClearingOrganizations	3178000	USD
CY2019Q4	us-gaap	Other Receivables From Broker Dealers And Clearing Organizations OtherReceivablesFromBrokerDealersAndClearingOrganizations	3511000	USD
CY2020Q3	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	151912000	USD
CY2019Q4	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	283108000	USD
CY2020Q3	us-gaap	Due To Correspondent Brokers DueToCorrespondentBrokers	13008000	USD
CY2019Q4	us-gaap	Due To Correspondent Brokers DueToCorrespondentBrokers	7514000	USD
CY2020Q3	srt	Payables To Broker Dealers And Clearing Organizations PayablesToBrokerDealersAndClearingOrganizations	13008000	USD
CY2019Q4	srt	Payables To Broker Dealers And Clearing Organizations PayablesToBrokerDealersAndClearingOrganizations	7514000	USD
CY2020Q3	pipr	Other Investmentsat Fair Value OtherInvestmentsatFairValue	162194000	USD
CY2019Q4	pipr	Other Investmentsat Fair Value OtherInvestmentsatFairValue	149987000	USD
CY2020Q3	us-gaap	Cost Method Investments CostMethodInvestments	1611000	USD
CY2019Q4	us-gaap	Cost Method Investments CostMethodInvestments	1084000	USD
CY2020Q3	us-gaap	Equity Method Investments EquityMethodInvestments	7443000	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	7070000	USD
CY2020Q3	pipr	Investments Excluding Financial Instruments Owned InvestmentsExcludingFinancialInstrumentsOwned	171248000	USD
CY2019Q4	pipr	Investments Excluding Financial Instruments Owned InvestmentsExcludingFinancialInstrumentsOwned	158141000	USD
CY2020Q3	us-gaap	Cost Method Investments Fair Value Disclosure CostMethodInvestmentsFairValueDisclosure	1600000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	9344000	USD
CY2020Q3	us-gaap	Accrued Fees And Other Revenue Receivable AccruedFeesAndOtherRevenueReceivable	56853000	USD
CY2019Q4	us-gaap	Accrued Fees And Other Revenue Receivable AccruedFeesAndOtherRevenueReceivable	18574000	USD
CY2020Q3	us-gaap	Interest Receivable InterestReceivable	1411000	USD
CY2019Q4	us-gaap	Interest Receivable InterestReceivable	2977000	USD
CY2020Q3	us-gaap	Due From Employees DueFromEmployees	3967000	USD
CY2019Q4	us-gaap	Due From Employees DueFromEmployees	5227000	USD
CY2020Q3	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	13118000	USD
CY2019Q4	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	10687000	USD
CY2020Q3	us-gaap	Income Tax Receivable IncomeTaxReceivable	1516000	USD
CY2019Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	2658000	USD
CY2020Q3	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	16775000	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	15317000	USD
CY2020Q3	us-gaap	Other Assets OtherAssets	93640000	USD
CY2019Q4	us-gaap	Other Assets OtherAssets	55440000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	87649000	USD
	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	127660000	USD
CY2020Q3	us-gaap	Goodwill Goodwill	215309000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	16686000	USD
	pipr	Indefinite And Finite Lived Intangible Assets Acquired IndefiniteAndFiniteLivedIntangibleAssetsAcquired	172600000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	33122000	USD
CY2020Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	156164000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	11606000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	24780000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	7442000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	6292000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	11300000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	70764000	USD
CY2020Q3	us-gaap	Short Term Borrowings ShortTermBorrowings	74966000	USD
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	49978000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	6640000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	23292000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	21662000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	17688000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	15789000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	35422000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	120493000	USD
CY2020Q3	us-gaap	Lease Cost LeaseCost	5900000	USD
CY2019Q3	us-gaap	Lease Cost LeaseCost	3200000	USD
	us-gaap	Lease Cost LeaseCost	16200000	USD
	us-gaap	Lease Cost LeaseCost	8900000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	0	USD
CY2020Q3	us-gaap	Short Term Lease Cost ShortTermLeaseCost	200000	USD
CY2019Q3	us-gaap	Short Term Lease Cost ShortTermLeaseCost	200000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	700000	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	500000	USD
CY2020Q3	us-gaap	Sublease Income SubleaseIncome	500000	USD
CY2019Q3	us-gaap	Sublease Income SubleaseIncome	400000	USD
	us-gaap	Sublease Income SubleaseIncome	1400000	USD
	us-gaap	Sublease Income SubleaseIncome	1300000	USD
CY2020Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y9M18D
CY2020Q3	us-gaap	Restructuring Charges RestructuringCharges	1703000	USD
CY2019Q3	us-gaap	Restructuring Charges RestructuringCharges	3555000	USD
	us-gaap	Restructuring Charges RestructuringCharges	4245000	USD
	us-gaap	Restructuring Charges RestructuringCharges	7462000	USD
CY2020Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	-111000	USD
CY2019Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	2588000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	2973000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	5076000	USD
CY2020Q3	pipr	Restructuring Chargesand Integration Related Costs RestructuringChargesandIntegrationRelatedCosts	1592000	USD
CY2019Q3	pipr	Restructuring Chargesand Integration Related Costs RestructuringChargesandIntegrationRelatedCosts	6143000	USD
	pipr	Restructuring Chargesand Integration Related Costs RestructuringChargesandIntegrationRelatedCosts	7218000	USD
	pipr	Restructuring Chargesand Integration Related Costs RestructuringChargesandIntegrationRelatedCosts	12538000	USD
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	102556	shares
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	698065	shares
	pipr	Stock Repurchased To Satisfy Employees Tax Withholding StockRepurchasedToSatisfyEmployeesTaxWithholding	8600000	USD
	pipr	Stock Repurchased To Satisfy Employees Tax Withholding StockRepurchasedToSatisfyEmployeesTaxWithholding	50300000	USD
	pipr	Stock Issued During Period Shares Treasury Stock Reissued Share Based Compensation Netof Shares Paidfor Tax Withholding StockIssuedDuringPeriodSharesTreasuryStockReissuedShareBasedCompensationNetofSharesPaidforTaxWithholding	282718	shares
	pipr	Stock Issued During Period Shares Treasury Stock Reissued Share Based Compensation Netof Shares Paidfor Tax Withholding StockIssuedDuringPeriodSharesTreasuryStockReissuedShareBasedCompensationNetofSharesPaidforTaxWithholding	1406139	shares
	pipr	Stock Issued During Period Shares Treasury Stock Issuedfor Deal Consideration StockIssuedDuringPeriodSharesTreasuryStockIssuedforDealConsideration	34205	shares
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	23000000.0	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	0	USD
CY2020Q3	pipr	Number Of Share Based Compensation Plans NumberOfShareBasedCompensationPlans	3	plan
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	29900000	USD
CY2019Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7900000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	79500000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	17900000	USD
CY2020Q3	us-gaap	Restricted Stock Award Forfeitures RestrictedStockAwardForfeitures	900000	USD
CY2019Q3	us-gaap	Restricted Stock Award Forfeitures RestrictedStockAwardForfeitures	300000	USD
	us-gaap	Restricted Stock Award Forfeitures RestrictedStockAwardForfeitures	2100000	USD
	us-gaap	Restricted Stock Award Forfeitures RestrictedStockAwardForfeitures	1500000	USD
CY2020Q3	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3900000	USD
CY2019Q3	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1600000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	10300000	USD
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3100000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	81667	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	99.00
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P8Y1M6D
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	0	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	0	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	0
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	0	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	0	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	0
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	81667	shares
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	99.00
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y4M24D
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	0	USD
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	0	shares
CY2020Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	11617000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	17165000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-1656000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	49281000	USD
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	13708000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	13789000	shares
CY2019Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	26077000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	23772000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	11617000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	43242000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-1656000	USD
	us-gaap	Net Income Loss NetIncomeLoss	73053000	USD
CY2020Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	0	USD
CY2019Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	800000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	0	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	3524000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	11617000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	42442000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-1656000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	69529000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	13778000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	13502000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14853000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14085000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14580000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	13882000	shares
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.84
CY2019Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.23
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-0.12
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	3.46
CY2020Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0
CY2019Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	1.87
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	0
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Basic Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare	1.69
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.84
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.09
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.12
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.15
CY2019Q3	us-gaap	Investment Banking Revenue InvestmentBankingRevenue	151192000	USD
	us-gaap	Investment Banking Revenue InvestmentBankingRevenue	562060000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.78
CY2019Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.20
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.12
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	3.37
CY2020Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0
CY2019Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	1.82
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	0
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Net Of Tax Per Diluted Share DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare	1.64
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.78
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.01
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.12
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.01
CY2019Q3	pipr	Weighted Average Number Shares Outstanding Participating Securities WeightedAverageNumberSharesOutstandingParticipatingSecurities	272170	shares
	pipr	Weighted Average Number Shares Outstanding Participating Securities WeightedAverageNumberSharesOutstandingParticipatingSecurities	598894	shares
CY2020Q3	us-gaap	Investment Banking Revenue InvestmentBankingRevenue	203235000	USD
	us-gaap	Investment Banking Revenue InvestmentBankingRevenue	410992000	USD
CY2020Q3	pipr	Institutional Brokerage Revenue InstitutionalBrokerageRevenue	86764000	USD
CY2019Q3	pipr	Institutional Brokerage Revenue InstitutionalBrokerageRevenue	46814000	USD
	pipr	Institutional Brokerage Revenue InstitutionalBrokerageRevenue	265246000	USD
	pipr	Institutional Brokerage Revenue InstitutionalBrokerageRevenue	113983000	USD
CY2020Q3	us-gaap	Interest Income Operating InterestIncomeOperating	2095000	USD
CY2019Q3	us-gaap	Interest Income Operating InterestIncomeOperating	6481000	USD
	us-gaap	Interest Income Operating InterestIncomeOperating	11225000	USD
	us-gaap	Interest Income Operating InterestIncomeOperating	20911000	USD
CY2020Q3	pipr	Investmentincomeloss Investmentincomeloss	15080000	USD
CY2019Q3	pipr	Investmentincomeloss Investmentincomeloss	-1575000	USD
	pipr	Investmentincomeloss Investmentincomeloss	4987000	USD
	pipr	Investmentincomeloss Investmentincomeloss	17622000	USD
CY2020Q3	us-gaap	Revenues Revenues	307174000	USD
CY2019Q3	us-gaap	Revenues Revenues	202912000	USD
	us-gaap	Revenues Revenues	843518000	USD
	us-gaap	Revenues Revenues	563508000	USD
CY2020Q3	pipr	Other Interest Expense OtherInterestExpense	3455000	USD
CY2019Q3	pipr	Other Interest Expense OtherInterestExpense	2177000	USD
	pipr	Other Interest Expense OtherInterestExpense	11193000	USD
	pipr	Other Interest Expense OtherInterestExpense	7813000	USD
CY2020Q3	us-gaap	Revenues Net Of Interest Expense RevenuesNetOfInterestExpense	303719000	USD
CY2019Q3	us-gaap	Revenues Net Of Interest Expense RevenuesNetOfInterestExpense	200735000	USD
	us-gaap	Revenues Net Of Interest Expense RevenuesNetOfInterestExpense	832325000	USD
	us-gaap	Revenues Net Of Interest Expense RevenuesNetOfInterestExpense	555695000	USD
CY2020Q3	us-gaap	Noninterest Expense NoninterestExpense	279070000	USD
CY2019Q3	us-gaap	Noninterest Expense NoninterestExpense	179700000	USD
	us-gaap	Noninterest Expense NoninterestExpense	834308000	USD
	us-gaap	Noninterest Expense NoninterestExpense	490598000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	24649000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	21035000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1983000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	65097000	USD
CY2020Q3	pipr	Operating Margin Percent OperatingMarginPercent	0.081
CY2019Q3	pipr	Operating Margin Percent OperatingMarginPercent	0.105
	pipr	Operating Margin Percent OperatingMarginPercent	-0.002
	pipr	Operating Margin Percent OperatingMarginPercent	0.117
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11600000	USD
CY2019Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1200000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	33100000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2700000	USD
CY2020Q3	srt	Alternative Net Capital Requirement1 AlternativeNetCapitalRequirement1	1000000.0	USD
CY2020Q3	srt	Net Capital NetCapital	174700000	USD
CY2020Q3	srt	Alternative Excess Net Capital AlternativeExcessNetCapital	173700000	USD
	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-1400000	USD
	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	10700000	USD
	pipr	Employee Service Sharebased Compensation Tax Benefitasa Componentof Income Tax Expense Benefit EmployeeServiceSharebasedCompensationTaxBenefitasaComponentofIncomeTaxExpenseBenefit	200000	USD
	pipr	Employee Service Sharebased Compensation Tax Benefitasa Componentof Income Tax Expense Benefit EmployeeServiceSharebasedCompensationTaxBenefitasaComponentofIncomeTaxExpenseBenefit	5100000	USD
	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	-3600000	USD

Files In Submission

Name	View Source	Status
0001230245-20-000134-index-headers.html	Edgar Link	pending
0001230245-20-000134-index.html	Edgar Link	pending
0001230245-20-000134.txt	Edgar Link	pending
0001230245-20-000134-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
pipr-20200930.htm	Edgar Link	pending
pipr-20200930.xsd	Edgar Link	pending
pipr-20200930_cal.xml	Edgar Link	unprocessable
pipr-20200930_def.xml	Edgar Link	unprocessable
pipr-20200930_htm.xml	Edgar Link	completed
pipr-20200930_lab.xml	Edgar Link	unprocessable
pipr-20200930_pre.xml	Edgar Link	unprocessable
pscq32020ex311.htm	Edgar Link	pending
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$PIPR
PIPER SANDLER COMPANIES Stock $pipr

2020 Q3 Form 10-Q Financial Statement

#000123024520000134 Filed on November 05, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

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$PIPR PIPER SANDLER COMPANIES Stock $pipr

2020 Q3 Form 10-Q Financial Statement

#000123024520000134 Filed on November 05, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PIPR
PIPER SANDLER COMPANIES Stock $pipr