$HSII
HEIDRICK & STRUGGLES INTERNATIONAL INC Stock $hsii

$hsii Overview Financials Valuation SEC Filings Company Website

2024 Q4 Form 10-Q Financial Statement

#000106660524000045 Filed on November 04, 2024

Income Statement

Concept	2024 Q4	2024 Q3
Revenue		$282.8M
YoY Change		5.57%
Cost Of Revenue		$31.03M
YoY Change		1.14%
Gross Profit		$251.8M
YoY Change		6.14%
Gross Profit Margin		89.03%
Selling, General & Admin		$222.8M
YoY Change		8.77%
% of Gross Profit		88.47%
Research & Development		$5.682M
YoY Change		2.19%
% of Gross Profit		2.26%
Depreciation & Amortization		$2.997M
YoY Change		24.88%
% of Gross Profit		1.19%
Operating Expenses		$5.682M
YoY Change		2.19%
Operating Profit		$19.08M
YoY Change		-13.8%
Interest Expense		$2.570M
YoY Change		2.8%
% of Operating Profit		13.47%
Other Income/Expense, Net		$2.015M
YoY Change		8.57%
Pretax Income		$21.10M
YoY Change		-12.1%
Income Tax		$6.268M
% Of Pretax Income		29.71%
Net Earnings		$14.83M
YoY Change		-1.05%
Net Earnings / Revenue		5.24%
Basic Earnings Per Share		$0.73
Diluted Earnings Per Share		$0.71
COMMON SHARES
Basic Shares Outstanding	20.41M shares	20.32M shares
Diluted Shares Outstanding		21.02M shares

Balance Sheet

Concept	2024 Q4	2024 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments		$409.4M
YoY Change		22.59%
Cash & Equivalents		$363.4M
Short-Term Investments		$46.01M
Other Short-Term Assets		$48.93M
YoY Change		-3.33%
Inventory
Prepaid Expenses
Receivables		$186.3M
Other Receivables		$10.80M
Total Short-Term Assets		$683.1M
YoY Change		11.4%
LONG-TERM ASSETS
Property, Plant & Equipment		$53.51M
YoY Change		57.22%
Goodwill		$185.4M
YoY Change		-6.48%
Intangibles
YoY Change
Long-Term Investments		$59.09M
YoY Change		36.78%
Other Assets		$25.51M
YoY Change		30.62%
Total Long-Term Assets		$462.7M
YoY Change		8.09%
TOTAL ASSETS
Total Short-Term Assets		$683.1M
Total Long-Term Assets		$462.7M
Total Assets		$1.146B
YoY Change		10.04%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable		$21.52M
YoY Change		13.45%
Accrued Expenses		$296.5M
YoY Change		3.81%
Deferred Revenue		$47.11M
YoY Change		13.5%
Short-Term Debt		$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities		$395.4M
YoY Change		0.87%
LONG-TERM LIABILITIES
Long-Term Debt		$0.00
YoY Change
Other Long-Term Liabilities		$46.16M
YoY Change		12.62%
Total Long-Term Liabilities		$267.1M
YoY Change		27.11%
TOTAL LIABILITIES
Total Short-Term Liabilities		$395.4M
Total Long-Term Liabilities		$267.1M
Total Liabilities		$662.5M
YoY Change		10.03%
SHAREHOLDERS EQUITY
Retained Earnings		$224.2M
YoY Change		13.0%
Common Stock		$258.3M
YoY Change		3.85%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity		$483.3M
YoY Change
Total Liabilities & Shareholders Equity		$1.146B
YoY Change		10.04%

Cashflow Statement

Concept	2024 Q4	2024 Q3
OPERATING ACTIVITIES
Net Income		$14.83M
YoY Change		-1.05%
Depreciation, Depletion And Amortization		$2.997M
YoY Change		24.88%
Cash From Operating Activities		$101.1M
YoY Change		-7.63%
INVESTING ACTIVITIES
Capital Expenditures		-$6.891M
YoY Change		-346.11%
Acquisitions
YoY Change
Other Investing Activities		$62.15M
YoY Change		-318.84%
Cash From Investing Activities		$69.04M
YoY Change		-321.29%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities		-3.264M
YoY Change		-37.23%
NET CHANGE
Cash From Operating Activities		101.1M
Cash From Investing Activities		69.04M
Cash From Financing Activities		-3.264M
Net Change In Cash		166.9M
YoY Change		128.35%
FREE CASH FLOW
Cash From Operating Activities		$101.1M
Capital Expenditures		-$6.891M
Free Cash Flow		$108.0M
YoY Change		1.25%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2024
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Central Index Key EntityCentralIndexKey	0001066605
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2024-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	0-25837
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	36-2681268
	dei	Entity Address Address Line1 EntityAddressAddressLine1	233 South Wacker Drive
	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 4900
	dei	Entity Address City Or Town EntityAddressCityOrTown	Chicago
	dei	Entity Address State Or Province EntityAddressStateOrProvince	IL
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	60606-6303
	dei	City Area Code CityAreaCode	(312)
	dei	Local Phone Number LocalPhoneNumber	496-1200
	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value
	dei	Trading Symbol TradingSymbol	HSII
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2024Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	20409259	shares
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	363422000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	412618000	usd
CY2024Q3	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	46005000	usd
CY2024Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	8651000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	6954000	usd
CY2024Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	46158000	usd
CY2024Q3	us-gaap	Other Assets Current OtherAssetsCurrent	48928000	usd
CY2023Q4	us-gaap	Other Assets Current OtherAssetsCurrent	47923000	usd
CY2024Q3	us-gaap	Income Tax Receivable IncomeTaxReceivable	10795000	usd
CY2023Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	10410000	usd
CY2024Q3	us-gaap	Assets Current AssetsCurrent	683084000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	53508000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	35752000	usd
CY2024Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	83262000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	86063000	usd
CY2024Q3	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	11203000	usd
CY2023Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	11105000	usd
CY2024Q3	us-gaap	Long Term Investments LongTermInvestments	59089000	usd
CY2023Q4	us-gaap	Long Term Investments LongTermInvestments	47287000	usd
CY2024Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	25507000	usd
CY2023Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	17071000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	202252000	usd
CY2024Q3	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	15110000	usd
CY2024Q3	us-gaap	Assets Noncurrent AssetsNoncurrent	462696000	usd
CY2023Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	448377000	usd
CY2024Q3	us-gaap	Assets Assets	1145780000	usd
CY2023Q4	us-gaap	Assets Assets	1141591000	usd
CY2024Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	21517000	usd
CY2023Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	20837000	usd
CY2024Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	277498000	usd
CY2023Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	322744000	usd
CY2024Q3	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	47106000	usd
CY2023Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	45732000	usd
CY2024Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	18985000	usd
CY2024Q3	hsii	Accrued Salaries And Benefits AccruedSalariesAndBenefits	55338000	usd
CY2023Q4	hsii	Accrued Salaries And Benefits AccruedSalariesAndBenefits	52108000	usd
CY2024Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	75048000	usd
CY2023Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	62100000	usd
CY2024Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	84623000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	78204000	usd
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2024Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	278559000	usd
CY2024Q3	hsii	Reimbursement Revenue ReimbursementRevenue	4256000	usd
CY2023Q3	hsii	Reimbursement Revenue ReimbursementRevenue	4736000	usd
CY2023Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	263160000	usd
CY2024Q3	us-gaap	Revenues Revenues	282815000	usd
CY2023Q3	us-gaap	Revenues Revenues	267896000	usd
CY2024Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	183025000	usd
CY2023Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	167219000	usd
CY2024Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	39740000	usd
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2024Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2024Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2024Q3	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2023Q3	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2024Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	46158000	usd
CY2023Q3	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	864000	usd
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3413000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	679313000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	6402000	usd
CY2023Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	240622000	usd
CY2024Q3	us-gaap	Liabilities Liabilities	662495000	usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2024Q3	us-gaap	Goodwill Goodwill	185400000	usd
CY2024Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	5937000	usd
CY2024Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
	dei	Document Type DocumentType	10-Q
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	20127872	shares
CY2023Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	5080	shares
CY2023Q4	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	110000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	210070000	usd
CY2024Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1145780000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1141591000	usd
CY2024Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	20409259	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	20122792	shares
CY2024Q3	us-gaap	Common Stock Value CommonStockValue	204000	usd
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	201000	usd
CY2024Q3	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	5080	shares
CY2024Q3	us-gaap	Treasury Stock Common Value TreasuryStockCommonValue	110000	usd
CY2023Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	251988000	usd
CY2024Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	224165000	usd
CY2024Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	940000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	129000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	483285000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	462278000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	822382000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	773702000	usd
	hsii	Reimbursement Revenue ReimbursementRevenue	12408000	usd
	hsii	Reimbursement Revenue ReimbursementRevenue	10090000	usd
	us-gaap	Revenues Revenues	834790000	usd
	us-gaap	Revenues Revenues	783792000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	535330000	usd
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	504994000	usd
CY2023Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	37564000	usd
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	127556000	usd
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	112405000	usd
CY2024Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	31030000	usd
CY2023Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	30680000	usd
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	88158000	usd
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	78818000	usd
CY2023Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	5560000	usd
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	17002000	usd
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	16746000	usd
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	16224000	usd
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	7246000	usd
CY2024Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2024Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	258086000	usd
CY2024Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	5682000	usd
CY2023Q3	us-gaap	Depreciation Depreciation	2400000	usd
CY2024Q3	us-gaap	Variable Lease Cost VariableLeaseCost	2334000	usd
CY2023Q3	us-gaap	Variable Lease Cost VariableLeaseCost	2213000	usd
CY2023Q3	us-gaap	Lease Cost LeaseCost	6964000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	42000	usd
CY2023Q3	us-gaap	Costs And Expenses CostsAndExpenses	245759000	usd
	us-gaap	Costs And Expenses CostsAndExpenses	803617000	usd
	us-gaap	Costs And Expenses CostsAndExpenses	730299000	usd
CY2024Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	19082000	usd
CY2023Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	22137000	usd
	us-gaap	Operating Income Loss OperatingIncomeLoss	31173000	usd
CY2024Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-555000	usd
	hsii	Reimbursed Expenses ReimbursedExpenses	12408000	usd
CY2022Q4	us-gaap	Restricted Cash RestrictedCash	42000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	286471000	usd
CY2024Q3	us-gaap	Marketable Securities MarketableSecurities	46005000	usd
CY2024Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2024Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2024Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	20414339	shares
	dei	Entity Registrant Name EntityRegistrantName	HEIDRICK & STRUGGLES INTERNATIONAL, INC.
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2023Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	65538000	usd
CY2024Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	186252000	usd
CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	133128000	usd
CY2024Q3	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	27682000	usd
CY2023Q4	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	23597000	usd
CY2023Q4	us-gaap	Assets Current AssetsCurrent	693214000	usd
CY2024Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	29617000	usd
CY2023Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	28005000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	21498000	usd
CY2024Q3	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	6891000	usd
CY2023Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	6057000	usd
CY2024Q3	us-gaap	Liabilities Current LiabilitiesCurrent	395391000	usd
CY2023Q4	us-gaap	Liabilities Current LiabilitiesCurrent	438691000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	41808000	usd
CY2023Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	20842000	usd
CY2024Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	23394000	usd
CY2024Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2023Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2024Q3	hsii	Reimbursed Expenses ReimbursedExpenses	4256000	usd
CY2024Q3	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	267104000	usd
CY2024Q3	us-gaap	Restructuring Charges RestructuringCharges	0	usd
CY2023Q3	us-gaap	Restructuring Charges RestructuringCharges	0	usd
	us-gaap	Restructuring Charges RestructuringCharges	6939000	usd
	us-gaap	Restructuring Charges RestructuringCharges	0	usd
CY2023Q3	hsii	Reimbursed Expenses ReimbursedExpenses	4736000	usd
	hsii	Reimbursed Expenses ReimbursedExpenses	10090000	usd
CY2024Q3	us-gaap	Costs And Expenses CostsAndExpenses	263733000	usd
CY2024Q3	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	2570000	usd
CY2023Q3	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	2505000	usd
	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	9268000	usd
	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	7667000	usd
CY2023Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-649000	usd
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3013000	usd
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2537000	usd
CY2023Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1856000	usd
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	12281000	usd
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	10204000	usd
CY2024Q3	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	21097000	usd
CY2023Q3	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	23993000	usd
	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	43454000	usd
	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	63697000	usd
CY2024Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6268000	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9006000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19750000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24142000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	14829000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	14987000	usd
	us-gaap	Net Income Loss NetIncomeLoss	23704000	usd
	us-gaap	Net Income Loss NetIncomeLoss	39555000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	6977000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-4015000	usd
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	816000	usd
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-3701000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	19000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	14000	usd
	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-5000	usd
	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	68000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6996000	usd
CY2024Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	21825000	usd
CY2023Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	10986000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	24515000	usd
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	35922000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20357000	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20076000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20254000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19998000	shares
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
	us-gaap	Operating Income Loss OperatingIncomeLoss	53493000	usd
CY2024Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	2015000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4001000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	811000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	21024000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	21144000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20716000	shares
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.75
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.17
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.98
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.71
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.12
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.91
CY2024Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.15
CY2023Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.15
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.45
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.45
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	462278000	usd
CY2024Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4091000	usd
CY2024Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2644000	usd
CY2024Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-2862000	usd
CY2024Q1	us-gaap	Dividends Share Based Compensation Cash DividendsShareBasedCompensationCash	198000	usd
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	468785000	usd
CY2024Q2	us-gaap	Net Income Loss NetIncomeLoss	-5157000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2094000	usd
CY2024Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3465000	usd
CY2024Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-885000	usd
CY2024Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2024Q2	us-gaap	Dividends Share Based Compensation Cash DividendsShareBasedCompensationCash	143000	usd
CY2024Q2	us-gaap	Stockholders Equity StockholdersEquity	460932000	usd
CY2023Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	21823000	usd
CY2024Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	2015000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4001000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	811000	usd
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3633000	usd
CY2024Q1	us-gaap	Net Income Loss NetIncomeLoss	14032000	usd
CY2024Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3018000	usd
CY2024Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3039000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	14829000	usd
CY2024Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6996000	usd
CY2024Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3792000	usd
CY2024Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-53000	usd
CY2024Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2024Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3057000	usd
CY2024Q3	us-gaap	Dividends Share Based Compensation Cash DividendsShareBasedCompensationCash	154000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	483285000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	15586000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	443000	usd
CY2023Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1853000	usd
CY2023Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-4141000	usd
CY2023Q1	hsii	Stock Issued During Period Value Clawback StockIssuedDuringPeriodValueClawback	163000	usd
CY2023Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2023Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3006000	usd
CY2023Q1	us-gaap	Dividends Share Based Compensation Cash DividendsShareBasedCompensationCash	106000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	421112000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	8982000	usd
CY2023Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2324000	usd
CY2023Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	904000	usd
CY2023Q2	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	0	usd
CY2023Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2023Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3003000	usd
CY2023Q2	us-gaap	Dividends Share Based Compensation Cash DividendsShareBasedCompensationCash	119000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	428317000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	14987000	usd
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4001000	usd
CY2023Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3154000	usd
CY2023Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	usd
CY2023Q3	hsii	Stock Issued During Period Value Clawback StockIssuedDuringPeriodValueClawback	144000	usd
CY2023Q3	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	-16000	usd
CY2023Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2023Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3014000	usd
CY2023Q3	us-gaap	Dividends Share Based Compensation Cash DividendsShareBasedCompensationCash	135000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	439148000	usd
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20553000	shares
CY2024Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2024Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3018000	usd
CY2024Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3792000	usd
CY2024Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-53000	usd
CY2024Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2024Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3057000	usd
CY2024Q3	us-gaap	Dividends Share Based Compensation Cash DividendsShareBasedCompensationCash	154000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	483285000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	410646000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	15586000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	443000	usd
CY2023Q1	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-4141000	usd
CY2023Q1	hsii	Stock Issued During Period Value Clawback StockIssuedDuringPeriodValueClawback	163000	usd
CY2023Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2023Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3006000	usd
CY2023Q1	us-gaap	Dividends Share Based Compensation Cash DividendsShareBasedCompensationCash	106000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	421112000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	8982000	usd
CY2023Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-75000	usd
CY2023Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2324000	usd
CY2023Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	904000	usd
CY2023Q2	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	0	usd
CY2023Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
CY2023Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4001000	usd
CY2023Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3154000	usd
CY2023Q3	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	usd
CY2023Q3	hsii	Stock Issued During Period Value Clawback StockIssuedDuringPeriodValueClawback	144000	usd
CY2023Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3014000	usd
CY2023Q3	us-gaap	Dividends Share Based Compensation Cash DividendsShareBasedCompensationCash	135000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	13650000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	13432000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2060000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-548000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	9901000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	7331000	usd
	us-gaap	Accretion Expense AccretionExpense	1413000	usd
	us-gaap	Accretion Expense AccretionExpense	1097000	usd
	us-gaap	Gain Loss On Investments GainLossOnInvestments	2040000	usd
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-192000	usd
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	16224000	usd
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	7246000	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	51707000	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	52205000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-13292000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-1657000	usd
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-41372000	usd
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-197698000	usd
	us-gaap	Restructuring Reserve Accrual Adjustment1 RestructuringReserveAccrualAdjustment1	2990000	usd
	us-gaap	Restructuring Reserve Accrual Adjustment1 RestructuringReserveAccrualAdjustment1	0	usd
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	1163000	usd
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-1622000	usd
	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	347000	usd
	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	6617000	usd
	us-gaap	Increase Decrease In Pension Plan Obligations IncreaseDecreaseInPensionPlanObligations	6385000	usd
	us-gaap	Increase Decrease In Pension Plan Obligations IncreaseDecreaseInPensionPlanObligations	6697000	usd
	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	4057000	usd
	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	3771000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	987000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	3243000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-39757000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-180617000	usd
	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	usd
	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	37953000	usd
	us-gaap	Net Income Loss NetIncomeLoss	23704000	usd
	us-gaap	Net Income Loss NetIncomeLoss	39555000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	13650000	usd
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	13432000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2060000	usd
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-548000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	9901000	usd
	us-gaap	Share Based Compensation ShareBasedCompensation	7331000	usd
	us-gaap	Accretion Expense AccretionExpense	1413000	usd
	us-gaap	Accretion Expense AccretionExpense	1097000	usd
	us-gaap	Gain Loss On Investments GainLossOnInvestments	2323000	usd
	us-gaap	Gain Loss On Investments GainLossOnInvestments	2040000	usd
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-264000	usd
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-192000	usd
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	16224000	usd
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	7246000	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	51707000	usd
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	52205000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-13292000	usd
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-1657000	usd
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-41372000	usd
	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-197698000	usd
	us-gaap	Restructuring Reserve Accrual Adjustment1 RestructuringReserveAccrualAdjustment1	2990000	usd
	us-gaap	Restructuring Reserve Accrual Adjustment1 RestructuringReserveAccrualAdjustment1	0	usd
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	1163000	usd
	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-1622000	usd
	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	347000	usd
	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	6617000	usd
	us-gaap	Increase Decrease In Pension Plan Obligations IncreaseDecreaseInPensionPlanObligations	6385000	usd
	us-gaap	Increase Decrease In Pension Plan Obligations IncreaseDecreaseInPensionPlanObligations	6697000	usd
	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	4057000	usd
	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	3771000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	987000	usd
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	3243000	usd
	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	usd
	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	37953000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	9619000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	75464000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	129070000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	289689000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	3815000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	166653000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	904000	usd
	us-gaap	Payments Of Dividends PaymentsOfDividends	9609000	usd
	us-gaap	Payments Of Dividends PaymentsOfDividends	9383000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3800000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4141000	usd
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	usd
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	37984000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-13409000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-52412000	usd
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	155000	usd
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-2642000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-49196000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-69018000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	9647000	usd
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	9619000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	115608000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	75464000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	129070000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	289689000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	3815000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	166653000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	904000	usd
	us-gaap	Payments Of Dividends PaymentsOfDividends	9609000	usd
	us-gaap	Payments Of Dividends PaymentsOfDividends	9383000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	3800000	usd
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4141000	usd
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	usd
	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	37984000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-13409000	usd
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	155000	usd
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-2642000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-49196000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-69018000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	412618000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	355489000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	363422000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	286471000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	412618000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	355489000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	286471000	usd
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	363422000	usd
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	286429000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	412618000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	355447000	usd
CY2024Q3	us-gaap	Restricted Cash RestrictedCash	0	usd
CY2023Q3	us-gaap	Restricted Cash RestrictedCash	42000	usd
CY2023Q4	us-gaap	Restricted Cash RestrictedCash	0	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	363422000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	412618000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	355489000	usd
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	363422000	usd
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	286429000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	412618000	usd
CY2023Q3	us-gaap	Restricted Cash RestrictedCash	42000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	363422000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	14829000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	14987000	usd
	us-gaap	Net Income Loss NetIncomeLoss	23704000	usd
	us-gaap	Net Income Loss NetIncomeLoss	39555000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20357000	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20076000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20254000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19998000	shares
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	21024000	shares
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20553000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	21144000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20716000	shares
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.75
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.17
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.98
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.71
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.12
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.91
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	14829000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	14987000	usd
	us-gaap	Net Income Loss NetIncomeLoss	23704000	usd
	us-gaap	Net Income Loss NetIncomeLoss	39555000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20357000	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20076000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20254000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	19998000	shares
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	21024000	shares
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20553000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	21144000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20716000	shares
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.75
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.17
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.98
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.71
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.12
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.91
	us-gaap	Number Of Reporting Units NumberOfReportingUnits	5	reportingunit
	us-gaap	Number Of Reporting Units NumberOfReportingUnits	5	reportingunit
	us-gaap	Revenue Performance Obligation Description Of Timing RevenuePerformanceObligationDescriptionOfTiming	six months
CY2024Q3	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	23455000	usd
CY2023Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	15318000	usd
	hsii	Increase Decrease In Unbilled Contracts Receivable IncreaseDecreaseInUnbilledContractsReceivable	8137000	usd
CY2024Q3	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	17636000	usd
CY2023Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	16774000	usd
CY2024Q3	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	41091000	usd
CY2023Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	32092000	usd
	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	8999000	usd
CY2024Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	47106000	usd
CY2023Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	45732000	usd
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	1374000	usd
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	39700000	usd
	us-gaap	Contract With Customer Performance Obligation Satisfied In Previous Period ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod	22700000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	6954000	usd
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	6419000	usd
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	4760000	usd
	hsii	Accounts Receivable Allowance For Credit Loss Foreign Currency Translation AccountsReceivableAllowanceForCreditLossForeignCurrencyTranslation	38000	usd
	us-gaap	Revenue Performance Obligation Description Of Timing RevenuePerformanceObligationDescriptionOfTiming	six months
CY2024Q3	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	23455000	usd
CY2023Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	15318000	usd
	hsii	Increase Decrease In Unbilled Contracts Receivable IncreaseDecreaseInUnbilledContractsReceivable	8137000	usd
CY2024Q3	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	17636000	usd
CY2023Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	16774000	usd
	hsii	Increase Decrease In Contract With Customer After Allowance For Credit Loss IncreaseDecreaseInContractWithCustomerAfterAllowanceForCreditLoss	862000	usd
CY2024Q3	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	41091000	usd
CY2023Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	32092000	usd
	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	8999000	usd
CY2024Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	47106000	usd
CY2023Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	45732000	usd
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	39700000	usd
	us-gaap	Contract With Customer Performance Obligation Satisfied In Previous Period ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod	22700000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	6954000	usd
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	6419000	usd
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	4760000	usd
	hsii	Accounts Receivable Allowance For Credit Loss Foreign Currency Translation AccountsReceivableAllowanceForCreditLossForeignCurrencyTranslation	38000	usd
CY2024Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	8651000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	0	position
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	0	position
CY2024Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	116597000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	98623000	usd
CY2024Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	63089000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	62871000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	53508000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	35752000	usd
CY2024Q3	us-gaap	Depreciation Depreciation	3000000.0	usd
	us-gaap	Depreciation Depreciation	7500000	usd
CY2024Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	5311000	usd
CY2023Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	4751000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	17667000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	13843000	usd
	us-gaap	Variable Lease Cost VariableLeaseCost	7359000	usd
	us-gaap	Variable Lease Cost VariableLeaseCost	7200000	usd
	us-gaap	Lease Cost LeaseCost	25026000	usd
	us-gaap	Lease Cost LeaseCost	21043000	usd
	us-gaap	Operating Lease Payments OperatingLeasePayments	16718000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	0	position
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	0	position
CY2024Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	116597000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	98623000	usd
CY2024Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	63089000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	62871000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	53508000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	35752000	usd
	us-gaap	Depreciation Depreciation	7500000	usd
	us-gaap	Depreciation Depreciation	6600000	usd
CY2024Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	5311000	usd
CY2023Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	4751000	usd
	us-gaap	Operating Lease Cost OperatingLeaseCost	17667000	usd
	us-gaap	Variable Lease Cost VariableLeaseCost	7200000	usd
CY2024Q3	us-gaap	Lease Cost LeaseCost	7645000	usd
	us-gaap	Lease Cost LeaseCost	25026000	usd
	us-gaap	Lease Cost LeaseCost	21043000	usd
	us-gaap	Operating Lease Payments OperatingLeasePayments	16718000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	16080000	usd
	us-gaap	Operating Lease Payments OperatingLeasePayments	14923000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	16080000	usd
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	7944000	usd
CY2024Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y6M
CY2023Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y2M12D
CY2024Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0515
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	4478000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	18969000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	17863000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	17668000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	13612000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	127604000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	23996000	usd
CY2024Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	103608000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	188828000	usd
CY2024Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	38000	usd
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	363422000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	242270000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	412618000	usd
CY2023Q4	us-gaap	Marketable Securities MarketableSecurities	65538000	usd
CY2023Q4	hsii	Aggregate Cost Basis For Non Qualified Deferred Compensation Plan AggregateCostBasisForNonQualifiedDeferredCompensationPlan	37200000	usd
CY2024Q3	us-gaap	Fair Value Net Asset Liability FairValueNetAssetLiability	57049000	usd
CY2023Q4	us-gaap	Fair Value Net Asset Liability FairValueNetAssetLiability	45265000	usd
CY2024Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	11000000	usd
CY2023Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	0	usd
CY2024Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y6M
CY2023Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y2M12D
CY2024Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0515
CY2023Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0377
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	4478000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	18969000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	17863000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	17668000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	13612000	usd
CY2024Q3	hsii	Lessee Operating Lease Liability To Be Paid After Year Four LesseeOperatingLeaseLiabilityToBePaidAfterYearFour	55014000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	127604000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	23996000	usd
CY2024Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	103608000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	188828000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	188866000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss	242228000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	242270000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	412618000	usd
CY2023Q4	us-gaap	Marketable Securities MarketableSecurities	65538000	usd
CY2024Q3	hsii	Aggregate Cost Basis For Non Qualified Deferred Compensation Plan AggregateCostBasisForNonQualifiedDeferredCompensationPlan	43200000	usd
CY2024Q3	us-gaap	Fair Value Net Asset Liability FairValueNetAssetLiability	57049000	usd
CY2023Q4	us-gaap	Fair Value Net Asset Liability FairValueNetAssetLiability	45265000	usd
CY2024Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	11000000	usd
CY2023Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	0	usd
CY2024Q3	us-gaap	Goodwill Gross GoodwillGross	208870000	usd
CY2023Q4	us-gaap	Goodwill Gross GoodwillGross	209498000	usd
CY2024Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	23470000	usd
CY2023Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	7246000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	185400000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	202252000	usd
CY2023Q4	us-gaap	Goodwill Gross GoodwillGross	209498000	usd
CY2023Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	7246000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	202252000	usd
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	16224000	usd
CY2024Q3	us-gaap	Goodwill Gross GoodwillGross	208870000	usd
CY2024Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	23470000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	185400000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	15110000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	20842000	usd
CY2023Q4	us-gaap	Goodwill Gross GoodwillGross	209498000	usd
CY2024Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	23470000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	185400000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	202252000	usd
CY2023Q4	us-gaap	Goodwill Gross GoodwillGross	209498000	usd
CY2023Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	7246000	usd
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	16224000	usd
	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-628000	usd
CY2024Q3	us-gaap	Goodwill Gross GoodwillGross	208870000	usd
CY2024Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	23470000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	185400000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	15110000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	20842000	usd
	us-gaap	Acquired Finite Lived Intangible Assets Weighted Average Useful Life AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife	P8Y7M6D
CY2024Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	40398000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	25288000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	15110000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	39891000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	19049000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	20842000	usd
CY2024Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2000000.0	usd
CY2023Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2400000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6200000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6900000	usd
	us-gaap	Acquired Finite Lived Intangible Assets Weighted Average Useful Life AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife	P8Y7M6D
CY2024Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	40398000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	25288000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	15110000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	39891000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	19049000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	20842000	usd
CY2023Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2400000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6200000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6900000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	1877000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	6051000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	2561000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	909000	usd
CY2024Q3	hsii	Hs Finite Lived Intangible Asset Expected Amortization After Year Four HSFiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour	2157000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	15110000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	1877000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	6051000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	2561000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1555000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	909000	usd
CY2024Q3	hsii	Hs Finite Lived Intangible Asset Expected Amortization After Year Four HSFiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour	2157000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	15110000	usd
CY2024Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	41091000	usd
CY2023Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	32092000	usd
CY2024Q3	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	7837000	usd
CY2023Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	15831000	usd
CY2024Q3	us-gaap	Other Assets Current OtherAssetsCurrent	48928000	usd
CY2023Q4	us-gaap	Other Assets Current OtherAssetsCurrent	47923000	usd
CY2023Q4	hsii	Acquisition Earnout Accruals Non Current AcquisitionEarnoutAccrualsNonCurrent	38601000	usd
CY2024Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	41091000	usd
CY2023Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	32092000	usd
CY2024Q3	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	7837000	usd
CY2023Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	15831000	usd
CY2024Q3	us-gaap	Other Assets Current OtherAssetsCurrent	48928000	usd
CY2024Q3	hsii	Acquisition Earnout Accruals Non Current AcquisitionEarnoutAccrualsNonCurrent	41832000	usd
CY2023Q4	hsii	Acquisition Earnout Accruals Non Current AcquisitionEarnoutAccrualsNonCurrent	38601000	usd
CY2023Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	3207000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	41808000	usd
CY2024Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized	649000	shares
CY2024Q3	hsii	Share Based Compensation Arrangement By Share Based Payment Award Shares Issued To Date ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedToDate	4804464	shares
CY2024Q3	hsii	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Forfeited To Date ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesForfeitedToDate	883558	shares
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	920911	shares
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2024000	usd
CY2024Q3	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	4326000	usd
CY2023Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	3207000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	41808000	usd
CY2024Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized	649000	shares
CY2024Q3	hsii	Share Based Compensation Arrangement By Share Based Payment Award Shares Issued To Date ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedToDate	4804464	shares
CY2024Q3	hsii	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Forfeited To Date ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesForfeitedToDate	883558	shares
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	920911	shares
CY2024Q3	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1506000	usd
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2024000	usd
	us-gaap	Stock Issued During Period Shares Issued For Services StockIssuedDuringPeriodSharesIssuedForServices	12564	shares
CY2008Q1	srt	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	50000000	usd
CY2024Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	36000	shares
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	900000	usd
CY2024Q3	hsii	Treasury Stock Shares Acquired To Date TreasuryStockSharesAcquiredToDate	1074670	shares
CY2024Q3	hsii	Treasury Stock Value Acquired To Date TreasuryStockValueAcquiredToDate	29200000	usd
CY2024Q3	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	20800000	usd
CY2024Q3	us-gaap	Restructuring Charges RestructuringCharges	0	usd
	us-gaap	Stock Issued During Period Shares Issued For Services StockIssuedDuringPeriodSharesIssuedForServices	12564	shares
	us-gaap	Stock Issued During Period Shares Issued For Services StockIssuedDuringPeriodSharesIssuedForServices	16134	shares
CY2008Q1	srt	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	50000000	usd
CY2024Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	900000	usd
CY2024Q3	hsii	Treasury Stock Shares Acquired To Date TreasuryStockSharesAcquiredToDate	1074670	shares
CY2024Q3	hsii	Treasury Stock Value Acquired To Date TreasuryStockValueAcquiredToDate	29200000	usd
CY2024Q3	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	20800000	usd
CY2024Q3	us-gaap	Restructuring Charges RestructuringCharges	0	usd
CY2023Q4	us-gaap	Restructuring Reserve RestructuringReserve	0	usd
	us-gaap	Payments For Restructuring PaymentsForRestructuring	3960000	usd
	hsii	Restructuring Reserve Non Cash Writeoffs RestructuringReserveNonCashWriteoffs	46000	usd
	us-gaap	Restructuring Reserve Translation Adjustment RestructuringReserveTranslationAdjustment	-33000	usd
CY2024Q3	us-gaap	Restructuring Reserve RestructuringReserve	2992000	usd
CY2023Q4	us-gaap	Restructuring Reserve RestructuringReserve	0	usd
	us-gaap	Restructuring Charges RestructuringCharges	6939000	usd
	us-gaap	Payments For Restructuring PaymentsForRestructuring	3960000	usd
	hsii	Restructuring Reserve Non Cash Writeoffs RestructuringReserveNonCashWriteoffs	46000	usd
	us-gaap	Restructuring Reserve Translation Adjustment RestructuringReserveTranslationAdjustment	-33000	usd
CY2024Q3	us-gaap	Restructuring Reserve RestructuringReserve	2992000	usd
CY2024Q3	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	21100000	usd
CY2023Q3	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	24000000.0	usd
CY2023Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.375
	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	43500000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19800000	usd
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.455
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.379
	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	811000	usd
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	5	operatingsegment
CY2024Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	278559000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	773702000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	14829000	usd
	us-gaap	Net Income Loss NetIncomeLoss	39555000	usd
CY2024Q3	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	2570000	usd
CY2024Q3	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	21100000	usd
CY2024Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6300000	usd
CY2023Q3	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	24000000.0	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9000000.0	usd
CY2024Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.297
CY2023Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.375
	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	43500000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19800000	usd
	us-gaap	Income Loss Attributable To Parent IncomeLossAttributableToParent	63700000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24100000	usd
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.455
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.379
	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	811000	usd
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	5	operatingsegment
CY2024Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	278559000	usd
CY2023Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	263160000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	822382000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	773702000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	14829000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	14987000	usd
	us-gaap	Net Income Loss NetIncomeLoss	23704000	usd
	us-gaap	Net Income Loss NetIncomeLoss	39555000	usd
CY2024Q3	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	2570000	usd
CY2023Q3	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	2505000	usd
	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	9268000	usd
CY2024Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-555000	usd
CY2023Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-649000	usd
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3013000	usd
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2537000	usd
CY2024Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6268000	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9006000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19750000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24142000	usd
CY2024Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	19082000	usd
CY2023Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	22137000	usd
	us-gaap	Operating Income Loss OperatingIncomeLoss	31173000	usd
CY2023Q3	us-gaap	Depreciation Depreciation	2387000	usd
	us-gaap	Depreciation Depreciation	7480000	usd
	us-gaap	Depreciation Depreciation	6563000	usd
CY2024Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1953000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6170000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6869000	usd
CY2024Q3	us-gaap	Accretion Expense AccretionExpense	478000	usd
CY2023Q3	us-gaap	Accretion Expense AccretionExpense	455000	usd
	us-gaap	Accretion Expense AccretionExpense	1413000	usd
	us-gaap	Accretion Expense AccretionExpense	1097000	usd
CY2024Q3	hsii	Earnout Fair Value Adjustments EarnoutFairValueAdjustments	0	usd
CY2023Q3	hsii	Earnout Fair Value Adjustments EarnoutFairValueAdjustments	0	usd
	hsii	Earnout Fair Value Adjustments EarnoutFairValueAdjustments	-1211000	usd
	hsii	Earnout Fair Value Adjustments EarnoutFairValueAdjustments	0	usd
CY2024Q3	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	2947000	usd
CY2023Q3	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	3268000	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	8220000	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	8711000	usd
CY2024Q3	hsii	Deferred Compensation Plan Expense DeferredCompensationPlanExpense	2958000	usd
CY2023Q3	hsii	Deferred Compensation Plan Expense DeferredCompensationPlanExpense	-1427000	usd
	hsii	Deferred Compensation Plan Expense DeferredCompensationPlanExpense	6264000	usd
	hsii	Deferred Compensation Plan Expense DeferredCompensationPlanExpense	2309000	usd
CY2024Q3	hsii	Reorganization Costs ReorganizationCosts	0	usd
CY2023Q3	hsii	Reorganization Costs ReorganizationCosts	176000	usd
	hsii	Reorganization Costs ReorganizationCosts	0	usd
	hsii	Reorganization Costs ReorganizationCosts	3572000	usd
CY2024Q3	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2023Q3	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	16224000	usd
CY2023Q3	us-gaap	Restructuring Charges RestructuringCharges	0	usd
	us-gaap	Restructuring Charges RestructuringCharges	6939000	usd
CY2024Q3	hsii	Earnings Before Interest Taxes Depreciation And Amortization Adjustments EarningsBeforeInterestTaxesDepreciationAndAmortizationAdjustments	11333000	usd
CY2023Q3	hsii	Earnings Before Interest Taxes Depreciation And Amortization Adjustments EarningsBeforeInterestTaxesDepreciationAndAmortizationAdjustments	7212000	usd
	hsii	Earnings Before Interest Taxes Depreciation And Amortization Adjustments EarningsBeforeInterestTaxesDepreciationAndAmortizationAdjustments	53921000	usd
	hsii	Earnings Before Interest Taxes Depreciation And Amortization Adjustments EarningsBeforeInterestTaxesDepreciationAndAmortizationAdjustments	36367000	usd
CY2024Q3	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	30415000	usd
CY2023Q3	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	29349000	usd
	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	85094000	usd
	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	89860000	usd
CY2024Q3	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization Margin Percentage AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationMarginPercentage	0.109
CY2023Q3	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization Margin Percentage AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationMarginPercentage	0.112
	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization Margin Percentage AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationMarginPercentage	0.103
CY2023Q3	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	2505000	usd
	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	9268000	usd
	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	7667000	usd
CY2024Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-555000	usd
CY2023Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-649000	usd
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3013000	usd
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2537000	usd
CY2024Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6268000	usd
CY2023Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9006000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19750000	usd
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24142000	usd
CY2024Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	19082000	usd
CY2023Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	22137000	usd
	us-gaap	Operating Income Loss OperatingIncomeLoss	31173000	usd
	us-gaap	Operating Income Loss OperatingIncomeLoss	53493000	usd
CY2024Q3	us-gaap	Depreciation Depreciation	2997000	usd
CY2023Q3	us-gaap	Depreciation Depreciation	2387000	usd
	us-gaap	Depreciation Depreciation	6563000	usd
CY2024Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1953000	usd
CY2023Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2353000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6170000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	6869000	usd
CY2024Q3	us-gaap	Accretion Expense AccretionExpense	478000	usd
CY2023Q3	us-gaap	Accretion Expense AccretionExpense	455000	usd
	us-gaap	Accretion Expense AccretionExpense	1413000	usd
	us-gaap	Accretion Expense AccretionExpense	1097000	usd
CY2024Q3	hsii	Earnout Fair Value Adjustments EarnoutFairValueAdjustments	0	usd
CY2023Q3	hsii	Earnout Fair Value Adjustments EarnoutFairValueAdjustments	0	usd
	hsii	Earnout Fair Value Adjustments EarnoutFairValueAdjustments	-1211000	usd
	hsii	Earnout Fair Value Adjustments EarnoutFairValueAdjustments	0	usd
CY2023Q3	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	3268000	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	8220000	usd
	us-gaap	Business Combination Contingent Consideration Arrangements Change In Amount Of Contingent Consideration Liability1 BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1	8711000	usd
CY2024Q3	hsii	Deferred Compensation Plan Expense DeferredCompensationPlanExpense	2958000	usd
CY2023Q3	hsii	Deferred Compensation Plan Expense DeferredCompensationPlanExpense	-1427000	usd
	hsii	Deferred Compensation Plan Expense DeferredCompensationPlanExpense	6264000	usd
	hsii	Deferred Compensation Plan Expense DeferredCompensationPlanExpense	2309000	usd
CY2024Q3	hsii	Reorganization Costs ReorganizationCosts	0	usd
CY2023Q3	hsii	Reorganization Costs ReorganizationCosts	176000	usd
	hsii	Reorganization Costs ReorganizationCosts	3572000	usd
CY2024Q3	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
CY2023Q3	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	usd
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	16224000	usd
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	7246000	usd
CY2024Q3	us-gaap	Restructuring Charges RestructuringCharges	0	usd
CY2023Q3	us-gaap	Restructuring Charges RestructuringCharges	0	usd
	us-gaap	Restructuring Charges RestructuringCharges	6939000	usd
	us-gaap	Restructuring Charges RestructuringCharges	0	usd
CY2024Q3	hsii	Earnings Before Interest Taxes Depreciation And Amortization Adjustments EarningsBeforeInterestTaxesDepreciationAndAmortizationAdjustments	11333000	usd
CY2023Q3	hsii	Earnings Before Interest Taxes Depreciation And Amortization Adjustments EarningsBeforeInterestTaxesDepreciationAndAmortizationAdjustments	7212000	usd
	hsii	Earnings Before Interest Taxes Depreciation And Amortization Adjustments EarningsBeforeInterestTaxesDepreciationAndAmortizationAdjustments	53921000	usd
	hsii	Earnings Before Interest Taxes Depreciation And Amortization Adjustments EarningsBeforeInterestTaxesDepreciationAndAmortizationAdjustments	36367000	usd
CY2024Q3	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	30415000	usd
CY2023Q3	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	29349000	usd
	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	85094000	usd
	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	89860000	usd
CY2023Q3	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization Margin Percentage AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationMarginPercentage	0.112
	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization Margin Percentage AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationMarginPercentage	0.103
	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization Margin Percentage AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationMarginPercentage	0.116
CY2024Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	278559000	usd
CY2023Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	263160000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	822382000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	773702000	usd
CY2024Q3	hsii	Reimbursement Revenue ReimbursementRevenue	4256000	usd
CY2023Q3	hsii	Reimbursement Revenue ReimbursementRevenue	4736000	usd
	hsii	Reimbursement Revenue ReimbursementRevenue	12408000	usd
	hsii	Reimbursement Revenue ReimbursementRevenue	10090000	usd
CY2024Q3	us-gaap	Revenues Revenues	282815000	usd
CY2023Q3	us-gaap	Revenues Revenues	267896000	usd
	us-gaap	Revenues Revenues	834790000	usd
	us-gaap	Revenues Revenues	783792000	usd
CY2024Q3	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	30415000	usd
CY2023Q3	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	29349000	usd
	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	85094000	usd
	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	89860000	usd
CY2024Q3	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	4900000	usd
	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization Margin Percentage AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationMarginPercentage	0.116
CY2024Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	278559000	usd
CY2023Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	263160000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	822382000	usd
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	773702000	usd
CY2023Q3	hsii	Reimbursement Revenue ReimbursementRevenue	4736000	usd
	hsii	Reimbursement Revenue ReimbursementRevenue	12408000	usd
CY2024Q3	us-gaap	Revenues Revenues	282815000	usd
CY2023Q3	us-gaap	Revenues Revenues	267896000	usd
	us-gaap	Revenues Revenues	783792000	usd
CY2024Q3	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	30415000	usd
CY2023Q3	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	29349000	usd
	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	85094000	usd
	hsii	Adjusted Earnings Before Interest Taxes Depreciation And Amortization AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization	89860000	usd
CY2024Q3	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	4900000	usd

Files In Submission

Name	View Source	Status
0001066605-24-000045-index-headers.html	Edgar Link	pending
0001066605-24-000045-index.html	Edgar Link	pending
0001066605-24-000045.txt	Edgar Link	pending
0001066605-24-000045-xbrl.zip	Edgar Link	pending
ex101-hsiix20240930.htm	Edgar Link	pending
ex102-hsiix20240930.htm	Edgar Link	pending
ex311-hsiix20240930.htm	Edgar Link	pending
ex312-hsiix20240930.htm	Edgar Link	pending
ex321-hsiix20240930.htm	Edgar Link	pending
ex322-hsiix20240930.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
hsii-20240930.htm	Edgar Link	pending
hsii-20240930.xsd	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
hsii-20240930_cal.xml	Edgar Link	unprocessable
hsii-20240930_def.xml	Edgar Link	unprocessable
hsii-20240930_lab.xml	Edgar Link	unprocessable
hsii-20240930_pre.xml	Edgar Link	unprocessable
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
hsii-20240930_htm.xml	Edgar Link	completed
FilingSummary.xml	Edgar Link	unprocessable

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$HSII
HEIDRICK & STRUGGLES INTERNATIONAL INC Stock $hsii

2024 Q4 Form 10-Q Financial Statement

#000106660524000045 Filed on November 04, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HSII HEIDRICK & STRUGGLES INTERNATIONAL INC Stock $hsii

2024 Q4 Form 10-Q Financial Statement

#000106660524000045 Filed on November 04, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HSII
HEIDRICK & STRUGGLES INTERNATIONAL INC Stock $hsii