$NSP
INSPERITY, INC. Stock $nsp

$nsp Overview Financials Valuation SEC Filings Company Website

2023 Q2 Form 10-Q Financial Statement

#000100075323000024 Filed on April 26, 2023

Income Statement

Concept	2023 Q2	2023 Q1	2022 Q4
Revenue	$1.585B	$1.770B	$1.490B
YoY Change	10.69%	12.16%	15.37%
Cost Of Revenue	$1.360B	$1.438B	$1.249B
YoY Change	14.11%	11.26%	11.43%
Gross Profit	$224.6M	$332.1M	$241.0M
YoY Change	-6.35%	16.23%	41.27%
Gross Profit Margin	14.17%	18.77%	16.18%
Selling, General & Admin	$198.1M	$200.6M	$179.9M
YoY Change	9.19%	13.23%	23.96%
% of Gross Profit	88.18%	60.41%	74.63%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$10.74M	$10.50M	$10.29M
YoY Change	6.34%	3.07%	-4.98%
% of Gross Profit	4.78%	3.16%	4.27%
Operating Expenses	$208.8M	$211.1M	$190.2M
YoY Change	9.04%	12.68%	21.95%
Operating Profit	$15.81M	$121.0M	$50.86M
YoY Change	-67.31%	22.98%	246.5%
Interest Expense	$1.279M	$6.205M	-$17.00K
YoY Change	-52.47%	222.34%	-99.0%
% of Operating Profit	8.09%	5.13%	-0.03%
Other Income/Expense, Net
YoY Change
Pretax Income	$17.09M	$123.6M	$50.85M
YoY Change	-63.34%	27.9%	291.88%
Income Tax	$4.192M	$28.98M	$12.65M
% Of Pretax Income	24.53%	23.45%	24.88%
Net Earnings	$12.89M	$94.60M	$38.23M
YoY Change	-61.62%	35.36%	293.75%
Net Earnings / Revenue	0.81%	5.35%	2.57%
Basic Earnings Per Share	$0.34	$2.49
Diluted Earnings Per Share	$0.33	$2.45	$0.99
COMMON SHARES
Basic Shares Outstanding	38.22M shares	37.85M shares	37.93M shares
Diluted Shares Outstanding	38.58M shares	38.67M shares

Balance Sheet

Concept	2023 Q2	2023 Q1	2022 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$616.1M	$732.1M	$765.9M
YoY Change	13.74%	20.17%	26.05%
Cash & Equivalents	$580.1M	$696.6M	$732.8M
Short-Term Investments	$36.00M	$35.54M	$33.07M
Other Short-Term Assets	$130.9M	$79.86M	$61.73M
YoY Change	83.87%	-0.53%	15.79%
Inventory
Prepaid Expenses
Receivables	$605.1M	$607.3M	$13.93M
Other Receivables	$11.59M	$0.00	$8.384M
Total Short-Term Assets	$1.364B	$1.518B	$1.512B
YoY Change	-3.33%	6.02%	21.45%
LONG-TERM ASSETS
Property, Plant & Equipment	$245.0M	$196.4M	$200.0M
YoY Change	22.91%	-4.23%	-5.09%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$243.9M	$31.38M	$29.35M
YoY Change	767.89%	48.68%	93.65%
Total Long-Term Assets	$501.6M	$521.9M	$527.4M
YoY Change	4.02%	2.7%	3.77%
TOTAL ASSETS
Total Short-Term Assets	$1.364B	$1.518B	$1.512B
Total Long-Term Assets	$501.6M	$521.9M	$527.4M
Total Assets	$1.865B	$2.040B	$2.039B
YoY Change	-1.46%	5.15%	16.32%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$6.807M	$9.491M	$7.732M
YoY Change	12.81%	21.28%	20.59%
Accrued Expenses	$1.129B	$79.79M	$80.12M
YoY Change	1250.35%	-7.89%	15.61%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$1.136B	$1.303B	$1.353B
YoY Change	-8.9%	1.27%	19.92%
LONG-TERM LIABILITIES
Long-Term Debt	$369.4M	$369.4M	$369.4M
YoY Change	0.0%	0.0%	0.0%
Other Long-Term Liabilities	$229.7M	$233.0M	$235.2M
YoY Change	-1.26%	-4.91%
Total Long-Term Liabilities	$599.1M	$603.6M	$604.6M
YoY Change	-1.98%	-2.57%	-3.46%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.136B	$1.303B	$1.353B
Total Long-Term Liabilities	$599.1M	$603.6M	$604.6M
Total Liabilities	$1.735B	$1.907B	$1.958B
YoY Change	-6.62%	0.02%	11.58%
SHAREHOLDERS EQUITY
Retained Earnings	$717.2M	$726.1M	$655.2M
YoY Change	15.91%	20.02%	18.35%
Common Stock	$158.1M	$142.6M	$151.7M
YoY Change	25.29%	28.88%	38.24%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$744.8M	$735.2M	$725.5M
YoY Change	4.93%	7.86%	9.09%
Treasury Stock Shares			17.61M shares
Shareholders Equity	$130.5M	$133.4M	$81.28M
YoY Change
Total Liabilities & Shareholders Equity	$1.865B	$2.040B	$2.039B
YoY Change	-1.46%	5.15%	16.32%

Cashflow Statement

Concept	2023 Q2	2023 Q1	2022 Q4
OPERATING ACTIVITIES
Net Income	$12.89M	$94.60M	$38.23M
YoY Change	-61.62%	35.36%	293.75%
Depreciation, Depletion And Amortization	$10.74M	$10.50M	$10.29M
YoY Change	6.34%	3.07%	-4.98%
Cash From Operating Activities	-$109.0M	$39.35M	$225.7M
YoY Change	202.23%	-33.13%	9.91%
INVESTING ACTIVITIES
Capital Expenditures	$7.168M	$6.849M	$13.88M
YoY Change	-264.52%	46.16%	-249.19%
Acquisitions
YoY Change
Other Investing Activities	-$178.0K	-$2.096M	$1.610M
YoY Change	-111.12%	74.09%	127.72%
Cash From Investing Activities	-$7.346M	-$8.945M	-$12.27M
YoY Change	166.55%	51.87%	42.74%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-38.14M	-$46.85M	-17.73M
YoY Change	-20.11%	6.75%	-84.29%
NET CHANGE
Cash From Operating Activities	-109.0M	$39.35M	225.7M
Cash From Investing Activities	-7.346M	-$8.945M	-12.27M
Cash From Financing Activities	-38.14M	-$46.85M	-17.73M
Net Change In Cash	-154.5M	-$16.44M	195.7M
YoY Change	78.46%	-281.24%	133.49%
FREE CASH FLOW
Cash From Operating Activities	-$109.0M	$39.35M	$225.7M
Capital Expenditures	$7.168M	$6.849M	$13.88M
Free Cash Flow	-$116.2M	$32.50M	$211.8M
YoY Change	266.37%	-39.99%	-1.32%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	dei	Entity Registrant Name EntityRegistrantName	INSPERITY, INC.
CY2023Q1	dei	Entity Central Index Key EntityCentralIndexKey	0001000753
CY2023Q1	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q1
CY2023Q1	dei	Amendment Flag AmendmentFlag	false
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	nsp	Time Period Incurred Claims Expected To Be Paid Included In Deposits TimePeriodIncurredClaimsExpectedToBePaidIncludedInDeposits	Greater than 1 year
CY2023Q1	nsp	Time Period Estimate Of Incurred Claim Costs To Be Paid Included In Long Term Liabilities TimePeriodEstimateOfIncurredClaimCostsToBePaidIncludedInLongTermLiabilities	Greater than 1 year
CY2023Q1	nsp	Time Period Estimate Of Incurred Claim Costs To Be Paid Included In Short Term Liabilities TimePeriodEstimateOfIncurredClaimCostsToBePaidIncludedInShortTermLiabilities	P1Y
CY2023Q1	nsp	Time Period Incurred Claims Expected To Be Paid Recorded As Restricted TimePeriodIncurredClaimsExpectedToBePaidRecordedAsRestricted	P1Y
CY2023Q1	dei	Document Type DocumentType	10-Q
CY2023Q1	dei	Document Quarterly Report DocumentQuarterlyReport	true
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	dei	Document Transition Report DocumentTransitionReport	false
CY2023Q1	dei	Entity File Number EntityFileNumber	1-13998
CY2023Q1	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2023Q1	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	76-0479645
CY2023Q1	dei	Entity Address Address Line1 EntityAddressAddressLine1	19001 Crescent Springs Drive
CY2023Q1	dei	Entity Address City Or Town EntityAddressCityOrTown	Kingwood,
CY2023Q1	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2023Q1	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77339
CY2023Q1	dei	City Area Code CityAreaCode	281
CY2023Q1	dei	Local Phone Number LocalPhoneNumber	358-8986
CY2023Q1	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023Q1	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023Q1	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023Q1	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023Q1	dei	Entity Small Business EntitySmallBusiness	false
CY2023Q1	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	38215060	shares
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	696588000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	732828000	usd
CY2023Q1	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	48113000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	49779000	usd
CY2023Q1	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	35535000	usd
CY2022Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	33068000	usd
CY2023Q1	us-gaap	Receivables Net Current ReceivablesNetCurrent	607313000	usd
CY2022Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	622764000	usd
CY2023Q1	us-gaap	Prepaid Insurance PrepaidInsurance	50665000	usd
CY2022Q4	us-gaap	Prepaid Insurance PrepaidInsurance	11706000	usd
CY2023Q1	us-gaap	Other Assets Current OtherAssetsCurrent	79860000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	61728000	usd
CY2023Q1	us-gaap	Assets Current AssetsCurrent	1518074000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	1511873000	usd
CY2023Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	196382000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	199992000	usd
CY2023Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	53303000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	56532000	usd
CY2023Q1	nsp	Prepaid Health Insurance Noncurrent PrepaidHealthInsuranceNoncurrent	9000000	usd
CY2022Q4	nsp	Prepaid Health Insurance Noncurrent PrepaidHealthInsuranceNoncurrent	9000000	usd
CY2023Q1	nsp	Deposits Health Insurance DepositsHealthInsurance	7900000	usd
CY2022Q4	nsp	Deposits Health Insurance DepositsHealthInsurance	7900000	usd
CY2023Q1	nsp	Deposits Workers Compensation DepositsWorkersCompensation	211226000	usd
CY2022Q4	nsp	Deposits Workers Compensation DepositsWorkersCompensation	196370000	usd
CY2023Q1	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	12707000	usd
CY2022Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	12707000	usd
CY2023Q1	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	0	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	15533000	usd
CY2023Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	31381000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	29354000	usd
CY2023Q1	us-gaap	Assets Assets	2039973000	usd
CY2022Q4	us-gaap	Assets Assets	2039261000	usd
CY2023Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	9491000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	7732000	usd
CY2023Q1	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	495585000	usd
CY2022Q4	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	556085000	usd
CY2023Q1	nsp	Accrued Worksite Employee Payroll Costs AccruedWorksiteEmployeePayrollCosts	525312000	usd
CY2022Q4	nsp	Accrued Worksite Employee Payroll Costs AccruedWorksiteEmployeePayrollCosts	513397000	usd
CY2023Q1	nsp	Accrued Health Insurance Costs AccruedHealthInsuranceCosts	78722000	usd
CY2022Q4	nsp	Accrued Health Insurance Costs AccruedHealthInsuranceCosts	53402000	usd
CY2023Q1	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	51878000	usd
CY2022Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	53485000	usd
CY2023Q1	us-gaap	Accrued Salaries Current And Noncurrent AccruedSalariesCurrentAndNoncurrent	48365000	usd
CY2022Q4	us-gaap	Accrued Salaries Current And Noncurrent AccruedSalariesCurrentAndNoncurrent	89147000	usd
CY2023Q1	us-gaap	Taxes Payable Current TaxesPayableCurrent	13813000	usd
CY2022Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	6949000	usd
CY2023Q1	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	79793000	usd
CY2022Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	73173000	usd
CY2023Q1	us-gaap	Liabilities Current LiabilitiesCurrent	1302959000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1353370000	usd
CY2023Q1	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	181364000	usd
CY2022Q4	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	179629000	usd
CY2023Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	369400000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	369400000	usd
CY2023Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	51622000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	55587000	usd
CY2023Q1	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	1196000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	0	usd
CY2023Q1	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	603582000	usd
CY2022Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	604616000	usd
CY2023Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q1	us-gaap	Common Stock Value CommonStockValue	555000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	555000	usd
CY2023Q1	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	142002000	usd
CY2022Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	151144000	usd
CY2023Q1	us-gaap	Treasury Stock Value TreasuryStockValue	735219000	usd
CY2022Q4	us-gaap	Treasury Stock Value TreasuryStockValue	725532000	usd
CY2023Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	726094000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	655108000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	133432000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	81275000	usd
CY2023Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2039973000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2039261000	usd
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1769652000	usd
CY2022Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1577837000	usd
CY2023Q1	nsp	Payroll Taxes Benefits And Workers Compensation Costs PayrollTaxesBenefitsAndWorkersCompensationCosts	1437506000	usd
CY2022Q1	nsp	Payroll Taxes Benefits And Workers Compensation Costs PayrollTaxesBenefitsAndWorkersCompensationCosts	1292063000	usd
CY2023Q1	us-gaap	Gross Profit GrossProfit	332146000	usd
CY2022Q1	us-gaap	Gross Profit GrossProfit	285774000	usd
CY2023Q1	nsp	Salaries Wages And Payroll Taxes SalariesWagesAndPayrollTaxes	124541000	usd
CY2022Q1	nsp	Salaries Wages And Payroll Taxes SalariesWagesAndPayrollTaxes	107439000	usd
CY2023Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11110000	usd
CY2022Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9846000	usd
CY2023Q1	us-gaap	Sales Commissions And Fees SalesCommissionsAndFees	11017000	usd
CY2022Q1	us-gaap	Sales Commissions And Fees SalesCommissionsAndFees	10310000	usd
CY2023Q1	us-gaap	Advertising Expense AdvertisingExpense	5940000	usd
CY2022Q1	us-gaap	Advertising Expense AdvertisingExpense	8595000	usd
CY2023Q1	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	48034000	usd
CY2022Q1	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	41005000	usd
CY2023Q1	us-gaap	Depreciation And Amortization DepreciationAndAmortization	10497000	usd
CY2022Q1	us-gaap	Depreciation And Amortization DepreciationAndAmortization	10184000	usd
CY2023Q1	us-gaap	Operating Expenses OperatingExpenses	211139000	usd
CY2022Q1	us-gaap	Operating Expenses OperatingExpenses	187379000	usd
CY2023Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	121007000	usd
CY2022Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	98395000	usd
CY2023Q1	us-gaap	Interest Income Other InterestIncomeOther	8777000	usd
CY2022Q1	us-gaap	Interest Income Other InterestIncomeOther	148000	usd
CY2023Q1	us-gaap	Interest Expense InterestExpense	6205000	usd
CY2022Q1	us-gaap	Interest Expense InterestExpense	1925000	usd
CY2023Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	123579000	usd
CY2022Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	96618000	usd
CY2023Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	28984000	usd
CY2022Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	26734000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	94595000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	69884000	usd
CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.49
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.82
CY2023Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.45
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.80
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	nsp	Gross Billings GrossBillings	11451262000	usd
CY2022Q1	nsp	Gross Billings GrossBillings	10357905000	usd
CY2023Q1	nsp	Worksite Employee Payroll Cost WorksiteEmployeePayrollCost	9681610000	usd
CY2022Q1	nsp	Worksite Employee Payroll Cost WorksiteEmployeePayrollCost	8780068000	usd
CY2023Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1769652000	usd
CY2022Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1577837000	usd
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	94595000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	69884000	usd
CY2023Q1	us-gaap	Depreciation And Amortization DepreciationAndAmortization	10497000	usd
CY2022Q1	us-gaap	Depreciation And Amortization DepreciationAndAmortization	10184000	usd
CY2023Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11110000	usd
CY2022Q1	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9846000	usd
CY2023Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	16729000	usd
CY2022Q1	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	10006000	usd
CY2023Q1	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-15451000	usd
CY2022Q1	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	156917000	usd
CY2023Q1	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	38959000	usd
CY2022Q1	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	11431000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	11522000	usd
CY2022Q1	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	26970000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-1656000	usd
CY2022Q1	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	1588000	usd
CY2023Q1	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	1759000	usd
CY2022Q1	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	1414000	usd
CY2023Q1	us-gaap	Increase Decrease In Other Employee Related Liabilities IncreaseDecreaseInOtherEmployeeRelatedLiabilities	-60500000	usd
CY2022Q1	us-gaap	Increase Decrease In Other Employee Related Liabilities IncreaseDecreaseInOtherEmployeeRelatedLiabilities	-83125000	usd
CY2023Q1	nsp	Increase Decreasein Wse Epayrollexpense IncreaseDecreaseinWSEEpayrollexpense	11915000	usd
CY2022Q1	nsp	Increase Decreasein Wse Epayrollexpense IncreaseDecreaseinWSEEpayrollexpense	235970000	usd
CY2023Q1	us-gaap	Increase Decrease In Health Care Insurance Liabilities IncreaseDecreaseInHealthCareInsuranceLiabilities	25320000	usd
CY2022Q1	us-gaap	Increase Decrease In Health Care Insurance Liabilities IncreaseDecreaseInHealthCareInsuranceLiabilities	11398000	usd
CY2023Q1	us-gaap	Increase Decrease In Workers Compensation Liabilities IncreaseDecreaseInWorkersCompensationLiabilities	128000	usd
CY2022Q1	us-gaap	Increase Decrease In Workers Compensation Liabilities IncreaseDecreaseInWorkersCompensationLiabilities	-7050000	usd
CY2023Q1	us-gaap	Increase Decrease In Accrued Salaries IncreaseDecreaseInAccruedSalaries	-45691000	usd
CY2022Q1	us-gaap	Increase Decrease In Accrued Salaries IncreaseDecreaseInAccruedSalaries	-18971000	usd
CY2023Q1	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	6864000	usd
CY2022Q1	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	16197000	usd
CY2023Q1	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-55243000	usd
CY2022Q1	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-11037000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	39352000	usd
CY2022Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	58847000	usd
CY2023Q1	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	14206000	usd
CY2022Q1	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	6964000	usd
CY2023Q1	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	12110000	usd
CY2022Q1	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	5760000	usd
CY2023Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	6849000	usd
CY2022Q1	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4686000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-8945000	usd
CY2022Q1	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-5890000	usd
CY2023Q1	nsp	Treasury Stock Acquired TreasuryStockAcquired	34622000	usd
CY2022Q1	nsp	Treasury Stock Acquired TreasuryStockAcquired	27441000	usd
CY2023Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	19896000	usd
CY2022Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	17244000	usd
CY2023Q1	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	7671000	usd
CY2022Q1	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	799000	usd
CY2023Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-46847000	usd
CY2022Q1	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-43886000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-16440000	usd
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	9071000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1013919000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	807768000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	997479000	usd
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	816839000	usd
CY2023Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	971000	usd
CY2022Q1	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	775000	usd
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2022Q4	us-gaap	Shares Issued SharesIssued	55489000	shares
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	81275000	usd
CY2023Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	34622000	usd
CY2023Q1	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	0	usd
CY2023Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11110000	usd
CY2023Q1	us-gaap	Stockholders Equity Other StockholdersEquityOther	911000	usd
CY2023Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	19896000	usd
CY2023Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	59000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	94595000	usd
CY2023Q1	us-gaap	Shares Issued SharesIssued	55489000	shares
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	133432000	usd
CY2021Q4	us-gaap	Shares Issued SharesIssued	55489000	shares
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	-1774000	usd
CY2022Q1	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	27441000	usd
CY2022Q1	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	0	usd
CY2022Q1	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9846000	usd
CY2022Q1	us-gaap	Stockholders Equity Other StockholdersEquityOther	782000	usd
CY2022Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	17244000	usd
CY2022Q1	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-92000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	69884000	usd
CY2022Q1	us-gaap	Shares Issued SharesIssued	55489000	shares
CY2022Q1	us-gaap	Stockholders Equity StockholdersEquity	33961000	usd
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	nsp	Percentageofourhealthinsurancecoverageprovidedby United PercentageofourhealthinsurancecoverageprovidedbyUnited	0.87
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	nsp	Number Of Days In Advance Of Beginning Of Reporting Quarter Carrier Establishes Cash Funding Rates NumberOfDaysInAdvanceOfBeginningOfReportingQuarterCarrierEstablishesCashFundingRates	P90D
CY2023Q1	nsp	Prepaid Health Insurance Noncurrent PrepaidHealthInsuranceNoncurrent	9000000	usd
CY2023Q1	nsp	Required Deposit For Health Care Costs RequiredDepositForHealthCareCosts	6500000	usd
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	nsp	Prepaid Health Insurance Current And Noncurrent PrepaidHealthInsuranceCurrentAndNoncurrent	41500000	usd
CY2023Q1	nsp	Prepaid Health Insurance Noncurrent PrepaidHealthInsuranceNoncurrent	9000000	usd
CY2023Q1	nsp	Prepaid Health Insurance Current PrepaidHealthInsuranceCurrent	32500000	usd
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	nsp	Premiums Owed To United PremiumsOwedToUnited	-71100000	usd
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	nsp	Benefits Costs Incurred Reduced Relatedto Runoff BenefitsCostsIncurredReducedRelatedtoRunoff	-9000000	usd
CY2022Q1	nsp	Benefits Costs Incurred Reduced Relatedto Runoff BenefitsCostsIncurredReducedRelatedtoRunoff	800000	usd
CY2019Q3	nsp	Workers Compensation Maximum Economic Burden First Layer Of Claims Per Occurrence WorkersCompensationMaximumEconomicBurdenFirstLayerOfClaimsPerOccurrence	1000000	usd
CY2019Q3	nsp	Workers Compensation Maximum Economic Burden First Layer Of Claims Per Occurrence WorkersCompensationMaximumEconomicBurdenFirstLayerOfClaimsPerOccurrence	1000000	usd
CY2019Q3	nsp	Workers Compensation Maximum Aggregate Economic Burden For Claims In Excess Of First Layer Cap Per Policy Year WorkersCompensationMaximumAggregateEconomicBurdenForClaimsInExcessOfFirstLayerCapPerPolicyYear	6000000	usd
CY2019Q3	nsp	Workers Compensation Maximum Economic Burden First Layer Of Claims Per Occurrence WorkersCompensationMaximumEconomicBurdenFirstLayerOfClaimsPerOccurrence	1000000	usd
CY2019Q4	nsp	Workers Compensation Maximum Economic Burden First Layer Of Claims Per Occurrence WorkersCompensationMaximumEconomicBurdenFirstLayerOfClaimsPerOccurrence	1500000	usd
CY2019Q4	nsp	Workers Compensation Maximum Economic Burden First Layer Of Claims Per Occurrence WorkersCompensationMaximumEconomicBurdenFirstLayerOfClaimsPerOccurrence	1500000	usd
CY2019Q4	nsp	Workers Compensation Maximum Aggregate Economic Burden For Claims In Excess Of First Layer Cap Per Policy Year WorkersCompensationMaximumAggregateEconomicBurdenForClaimsInExcessOfFirstLayerCapPerPolicyYear	6000000	usd
CY2019Q4	nsp	Workers Compensation Maximum Economic Burden First Layer Of Claims Per Occurrence WorkersCompensationMaximumEconomicBurdenFirstLayerOfClaimsPerOccurrence	1500000	usd
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	nsp	Decrease Increase In Accrued Workers Compensation Costs For Changes In Estimated Losses DecreaseIncreaseInAccruedWorkersCompensationCostsForChangesInEstimatedLosses	-7600000	usd
CY2022Q1	nsp	Decrease Increase In Accrued Workers Compensation Costs For Changes In Estimated Losses DecreaseIncreaseInAccruedWorkersCompensationCostsForChangesInEstimatedLosses	-14900000	usd
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	nsp	Us Treasury Rates That Correspond With Weighted Average Estimated Claim Payout Period USTreasuryRatesThatCorrespondWithWeightedAverageEstimatedClaimPayoutPeriod	0.040
CY2022Q1	nsp	Us Treasury Rates That Correspond With Weighted Average Estimated Claim Payout Period USTreasuryRatesThatCorrespondWithWeightedAverageEstimatedClaimPayoutPeriod	0.015
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2022Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Opening Balance Adjustments LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseOpeningBalanceAdjustments	229408000	usd
CY2021Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Opening Balance Adjustments LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseOpeningBalanceAdjustments	239623000	usd
CY2023Q1	nsp	Workers Compensation Expense WorkersCompensationExpense	15981000	usd
CY2022Q1	nsp	Workers Compensation Expense WorkersCompensationExpense	8373000	usd
CY2023Q1	nsp	Workers Compensation Discount Changed During Period WorkersCompensationDiscountChangedDuringPeriod	3209000	usd
CY2022Q1	nsp	Workers Compensation Discount Changed During Period WorkersCompensationDiscountChangedDuringPeriod	1309000	usd
CY2023Q1	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	12704000	usd
CY2022Q1	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	14370000	usd
CY2023Q1	us-gaap	Workers Compensation Liability Current And Noncurrent WorkersCompensationLiabilityCurrentAndNoncurrent	229476000	usd
CY2022Q1	us-gaap	Workers Compensation Liability Current And Noncurrent WorkersCompensationLiabilityCurrentAndNoncurrent	232317000	usd
CY2023Q1	nsp	Workers Compensation Liability Net Of Admin Fees Current WorkersCompensationLiabilityNetOfAdminFeesCurrent	48112000	usd
CY2022Q1	nsp	Workers Compensation Liability Net Of Admin Fees Current WorkersCompensationLiabilityNetOfAdminFeesCurrent	49429000	usd
CY2023Q1	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	181364000	usd
CY2022Q1	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	182888000	usd
CY2023Q1	us-gaap	Workers Compensation Liability Current And Noncurrent WorkersCompensationLiabilityCurrentAndNoncurrent	229476000	usd
CY2022Q1	us-gaap	Workers Compensation Liability Current And Noncurrent WorkersCompensationLiabilityCurrentAndNoncurrent	232317000	usd
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	nsp	Workers Compensation Administrative Fees Accrued WorkersCompensationAdministrativeFeesAccrued	3800000	usd
CY2023Q1	nsp	Undiscounted Accrued Workers Compensation Costs UndiscountedAccruedWorkersCompensationCosts	252600000	usd
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2022Q1	nsp	Undiscounted Accrued Workers Compensation Costs UndiscountedAccruedWorkersCompensationCosts	248000000	usd
CY2023Q1	nsp	Time Period Incurred Claims Expected To Be Paid Recorded As Restricted TimePeriodIncurredClaimsExpectedToBePaidRecordedAsRestricted	P1Y
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	48100000	usd
CY2023Q1	nsp	Deposits Workers Compensation DepositsWorkersCompensation	211200000	usd
CY2023Q1	nsp	Time Period Estimate Of Incurred Claim Costs To Be Paid Included In Short Term Liabilities TimePeriodEstimateOfIncurredClaimCostsToBePaidIncludedInShortTermLiabilities	P1Y
CY2023Q1	nsp	Unbilled Unbilled	582800000	usd
CY2022Q4	nsp	Unbilled Unbilled	600400000	usd
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1769652000	usd
CY2022Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1577837000	usd
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	nsp	Money Market Funds Overnight Holdings At Carrying Value MoneyMarketFundsOvernightHoldingsAtCarryingValue	635931000	usd
CY2022Q4	nsp	Money Market Funds Overnight Holdings At Carrying Value MoneyMarketFundsOvernightHoldingsAtCarryingValue	678512000	usd
CY2023Q1	us-gaap	Short Term Investments ShortTermInvestments	91081000	usd
CY2022Q4	us-gaap	Short Term Investments ShortTermInvestments	90031000	usd
CY2023Q1	us-gaap	Cash Cash	21072000	usd
CY2022Q4	us-gaap	Cash Cash	41047000	usd
CY2023Q1	srt	Drafts Payable DraftsPayable	15961000	usd
CY2022Q4	srt	Drafts Payable DraftsPayable	43694000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	732123000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	765896000	usd
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	nsp	Payroll Withholdings Included In Cash Balance PayrollWithholdingsIncludedInCashBalance	457800000	usd
CY2022Q4	nsp	Payroll Withholdings Included In Cash Balance PayrollWithholdingsIncludedInCashBalance	504800000	usd
CY2023Q1	nsp	Client Prepayments Included In Cash Balance ClientPrepaymentsIncludedInCashBalance	-42900000	usd
CY2022Q4	nsp	Client Prepayments Included In Cash Balance ClientPrepaymentsIncludedInCashBalance	-36800000	usd
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	369400000	usd
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	732828000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	575812000	usd
CY2022Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	49779000	usd
CY2021Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	46929000	usd
CY2022Q4	us-gaap	Funds Held For Clients FundsHeldForClients	34942000	usd
CY2021Q4	us-gaap	Funds Held For Clients FundsHeldForClients	0	usd
CY2022Q4	nsp	Deposits Workers Compensation DepositsWorkersCompensation	196370000	usd
CY2021Q4	nsp	Deposits Workers Compensation DepositsWorkersCompensation	185027000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1013919000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	807768000	usd
CY2023Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	696588000	usd
CY2022Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	576654000	usd
CY2023Q1	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	48113000	usd
CY2022Q1	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	49429000	usd
CY2023Q1	us-gaap	Funds Held For Clients FundsHeldForClients	41552000	usd
CY2022Q1	us-gaap	Funds Held For Clients FundsHeldForClients	0	usd
CY2023Q1	nsp	Deposits Workers Compensation DepositsWorkersCompensation	211226000	usd
CY2022Q1	nsp	Deposits Workers Compensation DepositsWorkersCompensation	190756000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	997479000	usd
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	816839000	usd
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	691477000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	735475000	usd
CY2023Q1	us-gaap	Us Government Securities At Carrying Value USGovernmentSecuritiesAtCarryingValue	35535000	usd
CY2022Q4	us-gaap	Us Government Securities At Carrying Value USGovernmentSecuritiesAtCarryingValue	29703000	usd
CY2023Q1	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	0	usd
CY2022Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	3365000	usd
CY2023Q1	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	727012000	usd
CY2022Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	768543000	usd
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	650000000	usd
CY2023Q1	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	700000000	usd
CY2023Q1	nsp	Percentage Of Subsidiary Stock Securing Debt PercentageOfSubsidiaryStockSecuringDebt	0.65	conversionratio
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	1000000	usd
CY2023Q1	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	279600000	usd
CY2023Q1	us-gaap	Long Term Debt Maturity Date LongTermDebtMaturityDate	2027-06-30
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	nsp	Applicable Margin Federal Funds Rate ApplicableMarginFederalFundsRate	0.0050
CY2023Q1	nsp	Adjusted Term Sofr Rate Plus Applicable Margin AdjustedTermSOFRRatePlusApplicableMargin	0.0200
CY2023Q1	us-gaap	Line Of Credit Facility Unused Capacity Commitment Fee Percentage LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage	0.0025
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	us-gaap	Line Of Credit Facility Interest Rate During Period LineOfCreditFacilityInterestRateDuringPeriod	0.0635
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	nsp	Aggregatenumberofsharesrepurchasedduringtheperiod Aggregatenumberofsharesrepurchasedduringtheperiod	288502	shares
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	93387	shares
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	938773	shares
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	195115	shares
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.52
CY2022Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
CY2023Q1	dei	Document Period End Date DocumentPeriodEndDate	2023-03-31
CY2023Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	19900000	usd
CY2022Q1	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	17200000	usd
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	94595000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	69884000	usd
CY2023Q1	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	0	usd
CY2022Q1	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	47000	usd
CY2023Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	94595000	usd
CY2022Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	69837000	usd
CY2023Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	37990000	shares
CY2022Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	38288000	shares
CY2023Q1	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	683000	shares
CY2022Q1	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	405000	shares
CY2023Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	38673000	shares
CY2022Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	38693000	shares
CY2023Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2022Q1	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	25000	shares
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q1	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023

Files In Submission

Name	View Source	Status
0001000753-23-000024-index-headers.html	Edgar Link	pending
0001000753-23-000024-index.html	Edgar Link	pending
0001000753-23-000024.txt	Edgar Link	pending
0001000753-23-000024-xbrl.zip	Edgar Link	pending
a03312023nsp-ex311.htm	Edgar Link	pending
a03312023nsp-ex312.htm	Edgar Link	pending
a03312023nsp-ex321.htm	Edgar Link	pending
a03312023nsp-ex322.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
nsp-20230331.htm	Edgar Link	pending
nsp-20230331.xsd	Edgar Link	pending
nsp-20230331_g1.jpg	Edgar Link	pending
nsp-20230331_g10.jpg	Edgar Link	pending
nsp-20230331_g11.jpg	Edgar Link	pending
nsp-20230331_g2.jpg	Edgar Link	pending
nsp-20230331_g3.jpg	Edgar Link	pending
nsp-20230331_g4.jpg	Edgar Link	pending
nsp-20230331_g5.jpg	Edgar Link	pending
nsp-20230331_g6.jpg	Edgar Link	pending
nsp-20230331_g7.jpg	Edgar Link	pending
nsp-20230331_g8.jpg	Edgar Link	pending
nsp-20230331_g9.jpg	Edgar Link	pending
R1.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
nsp-20230331_cal.xml	Edgar Link	unprocessable
nsp-20230331_lab.xml	Edgar Link	unprocessable
nsp-20230331_def.xml	Edgar Link	unprocessable
nsp-20230331_pre.xml	Edgar Link	unprocessable
nsp-20230331_htm.xml	Edgar Link	completed
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
R3.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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INSPERITY, INC. Stock $nsp

2023 Q2 Form 10-Q Financial Statement

#000100075323000024 Filed on April 26, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NSP INSPERITY, INC. Stock $nsp

2023 Q2 Form 10-Q Financial Statement

#000100075323000024 Filed on April 26, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NSP
INSPERITY, INC. Stock $nsp