$NSP
INSPERITY, INC. Stock $nsp

$nsp Overview Financials Valuation SEC Filings Company Website

2021 Q2 Form 10-Q Financial Statement

#000100075321000038 Filed on August 03, 2021

Income Statement

Concept	2021 Q2	2020 Q2	2020 Q1
Revenue	$1.185B	$993.4M	$1.229B
YoY Change	19.33%	-4.79%	6.63%
Cost Of Revenue	$2.021B	$773.1M	$995.5M
YoY Change	161.44%	-11.1%	7.47%
Gross Profit	$199.6M	$220.2M	$234.0M
YoY Change	-9.4%	26.77%	3.22%
Gross Profit Margin	16.83%	22.17%	19.03%
Selling, General & Admin	$314.2M	$139.4M	$141.2M
YoY Change	125.36%	8.82%	4.9%
% of Gross Profit	157.43%	63.29%	60.34%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$9.798M	$7.900M	$7.600M
YoY Change	24.03%	14.49%	13.43%
% of Gross Profit	4.91%	3.59%	3.25%
Operating Expenses	$164.3M	$147.3M	$148.8M
YoY Change	11.59%	9.07%	5.34%
Operating Profit	$35.22M	$72.99M	$85.22M
YoY Change	-51.74%	88.5%	-0.28%
Interest Expense	$1.975M	$2.219M	$2.362M
YoY Change	-11.0%	35.39%	40.51%
% of Operating Profit	5.61%	3.04%	2.77%
Other Income/Expense, Net
YoY Change
Pretax Income	$34.68M	$71.14M	$84.74M
YoY Change	-51.24%	78.36%	-2.63%
Income Tax	$9.530M	$19.29M	$22.65M
% Of Pretax Income	27.48%	27.11%	26.72%
Net Earnings	$25.15M	$51.85M	$62.09M
YoY Change	-51.49%	81.58%	-18.61%
Net Earnings / Revenue	2.12%	5.22%	5.05%
Basic Earnings Per Share	$0.65	$1.34	$1.59
Diluted Earnings Per Share	$0.65	$1.33	$1.58
COMMON SHARES
Basic Shares Outstanding	38.59M shares	38.57M shares	38.80M shares
Diluted Shares Outstanding	38.82M shares	38.65M shares	39.07M shares

Balance Sheet

Concept	2021 Q2	2020 Q2	2020 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$490.0M	$491.4M	$424.2M
YoY Change	-0.29%	27.27%	-6.25%
Cash & Equivalents	$455.4M	$459.4M	$404.7M
Short-Term Investments	$34.60M	$32.00M	$19.50M
Other Short-Term Assets	$47.07M	$34.65M	$40.43M
YoY Change	35.84%	16.3%	10.4%
Inventory
Prepaid Expenses
Receivables	$595.8M	$473.9M	$520.7M
Other Receivables	$5.128M	$0.00	$0.00
Total Short-Term Assets	$1.201B	$1.069B	$1.079B
YoY Change	12.41%	16.26%	10.12%
LONG-TERM ASSETS
Property, Plant & Equipment	$219.6M	$177.8M	$160.3M
YoY Change	23.54%	47.12%	38.03%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$7.060M	$6.151M	$6.010M
YoY Change	14.78%	-0.74%	8.6%
Total Long-Term Assets	$526.8M	$449.1M	$443.1M
YoY Change	17.3%	12.89%	19.47%
TOTAL ASSETS
Total Short-Term Assets	$1.201B	$1.069B	$1.079B
Total Long-Term Assets	$526.8M	$449.1M	$443.1M
Total Assets	$1.728B	$1.518B	$1.522B
YoY Change	13.86%	15.24%	12.69%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$4.063M	$2.885M	$6.240M
YoY Change	40.83%	-55.94%	-20.55%
Accrued Expenses	$62.96M	$60.74M	$51.73M
YoY Change	3.65%	52.79%	5.05%
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	$1.003B	$840.6M	$888.5M
YoY Change	19.29%	9.19%	4.48%
LONG-TERM LIABILITIES
Long-Term Debt	$369.4M	$369.4M	$369.4M
YoY Change	0.0%	118.06%	155.82%
Other Long-Term Liabilities	$268.7M	$262.4M	$259.3M
YoY Change	2.41%
Total Long-Term Liabilities	$638.1M	$632.5M	$637.3M
YoY Change	0.89%	53.43%	67.09%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.003B	$840.6M	$888.5M
Total Long-Term Liabilities	$638.1M	$632.5M	$637.3M
Total Liabilities	$1.641B	$1.473B	$1.526B
YoY Change	11.39%	24.62%	23.86%
SHAREHOLDERS EQUITY
Retained Earnings	$627.9M	$581.6M	$545.3M
YoY Change	7.96%	21.89%	18.31%
Common Stock	$94.95M	$55.34M	$46.88M
YoY Change	71.58%	33.14%	36.33%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$635.6M	$592.3M	$595.5M
YoY Change	7.31%	54.32%	58.33%
Treasury Stock Shares
Shareholders Equity	$87.26M	$44.64M	-$3.310M
YoY Change
Total Liabilities & Shareholders Equity	$1.728B	$1.518B	$1.522B
YoY Change	13.86%	15.24%	12.69%

Cashflow Statement

Concept	2021 Q2	2020 Q2	2020 Q1
OPERATING ACTIVITIES
Net Income	$25.15M	$51.85M	$62.09M
YoY Change	-51.49%	81.58%	-18.61%
Depreciation, Depletion And Amortization	$9.798M	$7.900M	$7.600M
YoY Change	24.03%	14.49%	13.43%
Cash From Operating Activities	$4.995M	$91.10M	$23.79M
YoY Change	-94.52%	-301.1%	-79.79%
INVESTING ACTIVITIES
Capital Expenditures	-$8.608M	-$23.90M	$15.63M
YoY Change	-63.98%	106.03%	178.62%
Acquisitions
YoY Change
Other Investing Activities	-$522.0K	-$12.60M	$15.30M
YoY Change	-95.86%	72.6%	109.59%
Cash From Investing Activities	-$9.130M	-$36.50M	-$314.0K
YoY Change	-74.99%	93.12%	-118.33%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-24.94M	-13.70M	$25.60M
YoY Change	82.02%	-349.09%	-163.47%
NET CHANGE
Cash From Operating Activities	4.995M	91.10M	$23.79M
Cash From Investing Activities	-9.130M	-36.50M	-$314.0K
Cash From Financing Activities	-24.94M	-13.70M	$25.60M
Net Change In Cash	-29.07M	40.90M	$49.08M
YoY Change	-171.08%	-169.68%	-37.94%
FREE CASH FLOW
Cash From Operating Activities	$4.995M	$91.10M	$23.79M
Capital Expenditures	-$8.608M	-$23.90M	$15.63M
Free Cash Flow	$13.60M	$115.0M	$8.162M
YoY Change	-88.17%	-441.25%	-92.72%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Registrant Name EntityRegistrantName	INSPERITY, INC.
	dei	Entity Central Index Key EntityCentralIndexKey	0001000753
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Amendment Flag AmendmentFlag	false
CY2021Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	38602629	shares
	nsp	Time Period Incurred Claims Expected To Be Paid Included In Deposits TimePeriodIncurredClaimsExpectedToBePaidIncludedInDeposits	Greater than 1 year
	nsp	Time Period Estimate Of Incurred Claim Costs To Be Paid Included In Long Term Liabilities TimePeriodEstimateOfIncurredClaimCostsToBePaidIncludedInLongTermLiabilities	Greater than 1 year
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-06-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	1-13998
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	76-0479645
	dei	Entity Address Address Line1 EntityAddressAddressLine1	19001 Crescent Springs Drive
	dei	Entity Address City Or Town EntityAddressCityOrTown	Kingwood,
	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77339
	dei	City Area Code CityAreaCode	281
	dei	Local Phone Number LocalPhoneNumber	358-8986
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Shell Company EntityShellCompany	false
CY2021Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	38602629	shares
CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	455387000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	554846000	USD
CY2021Q2	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	46128000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	45522000	USD
CY2021Q2	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	34597000	USD
CY2020Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	34529000	USD
CY2021Q2	us-gaap	Receivables Net Current ReceivablesNetCurrent	595836000	USD
CY2020Q4	us-gaap	Receivables Net Current ReceivablesNetCurrent	392746000	USD
CY2021Q2	us-gaap	Prepaid Insurance PrepaidInsurance	17143000	USD
CY2020Q4	us-gaap	Prepaid Insurance PrepaidInsurance	10164000	USD
CY2021Q2	us-gaap	Other Assets Current OtherAssetsCurrent	47070000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	39461000	USD
CY2021Q2	us-gaap	Nontrade Receivables NontradeReceivables	5128000	USD
CY2020Q4	us-gaap	Nontrade Receivables NontradeReceivables	0	USD
CY2021Q2	us-gaap	Assets Current AssetsCurrent	1201289000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	1077268000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	219611000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	216256000	USD
CY2021Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	66463000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	60663000	USD
CY2021Q2	nsp	Prepaid Health Insurance Noncurrent PrepaidHealthInsuranceNoncurrent	9000000	USD
CY2020Q4	nsp	Prepaid Health Insurance Noncurrent PrepaidHealthInsuranceNoncurrent	9000000	USD
CY2021Q2	nsp	Deposits Health Insurance DepositsHealthInsurance	7900000	USD
CY2020Q4	nsp	Deposits Health Insurance DepositsHealthInsurance	7900000	USD
CY2021Q2	nsp	Deposits Workers Compensation DepositsWorkersCompensation	203612000	USD
CY2020Q4	nsp	Deposits Workers Compensation DepositsWorkersCompensation	186331000	USD
CY2021Q2	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	12707000	USD
CY2020Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	12707000	USD
CY2021Q2	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	442000	USD
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	9603000	USD
CY2021Q2	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	7060000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	4548000	USD
CY2021Q2	us-gaap	Assets Assets	1728084000	USD
CY2020Q4	us-gaap	Assets Assets	1584276000	USD
CY2021Q2	us-gaap	Accounts Payable Current AccountsPayableCurrent	4063000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	6203000	USD
CY2021Q2	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	262975000	USD
CY2020Q4	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	377960000	USD
CY2021Q2	nsp	Accrued Worksite Employee Payroll Costs AccruedWorksiteEmployeePayrollCosts	529881000	USD
CY2020Q4	nsp	Accrued Worksite Employee Payroll Costs AccruedWorksiteEmployeePayrollCosts	334836000	USD
CY2021Q2	nsp	Accrued Health Insurance Costs AccruedHealthInsuranceCosts	29064000	USD
CY2020Q4	nsp	Accrued Health Insurance Costs AccruedHealthInsuranceCosts	32685000	USD
CY2021Q2	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	49845000	USD
CY2020Q4	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	48186000	USD
CY2021Q2	us-gaap	Accrued Salaries Current And Noncurrent AccruedSalariesCurrentAndNoncurrent	63901000	USD
CY2020Q4	us-gaap	Accrued Salaries Current And Noncurrent AccruedSalariesCurrentAndNoncurrent	44277000	USD
CY2021Q2	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	62960000	USD
CY2020Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	60777000	USD
CY2021Q2	us-gaap	Liabilities Current LiabilitiesCurrent	1002689000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	904924000	USD
CY2021Q2	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	192703000	USD
CY2020Q4	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	195239000	USD
CY2021Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	369400000	USD
CY2020Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	369400000	USD
CY2021Q2	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	69736000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	64289000	USD
CY2021Q2	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	6294000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	6292000	USD
CY2021Q2	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	638133000	USD
CY2020Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	635220000	USD
CY2021Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q2	us-gaap	Common Stock Value CommonStockValue	555000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	555000	USD
CY2021Q2	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	94396000	USD
CY2020Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	95528000	USD
CY2021Q2	us-gaap	Treasury Stock Value TreasuryStockValue	635627000	USD
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	626984000	USD
CY2021Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	627938000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	575033000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	87262000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	44132000	USD
CY2021Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1728084000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1584276000	USD
CY2021Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1185371000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	993366000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2472206000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2222849000	USD
CY2021Q2	nsp	Payroll Taxes Benefits And Workers Compensation Costs PayrollTaxesBenefitsAndWorkersCompensationCosts	985817000	USD
CY2020Q2	nsp	Payroll Taxes Benefits And Workers Compensation Costs PayrollTaxesBenefitsAndWorkersCompensationCosts	773117000	USD
	nsp	Payroll Taxes Benefits And Workers Compensation Costs PayrollTaxesBenefitsAndWorkersCompensationCosts	2021207000	USD
	nsp	Payroll Taxes Benefits And Workers Compensation Costs PayrollTaxesBenefitsAndWorkersCompensationCosts	1768578000	USD
CY2021Q2	us-gaap	Gross Profit GrossProfit	199554000	USD
CY2020Q2	us-gaap	Gross Profit GrossProfit	220249000	USD
	us-gaap	Gross Profit GrossProfit	450999000	USD
	us-gaap	Gross Profit GrossProfit	454271000	USD
CY2021Q2	nsp	Salaries Wages And Payroll Taxes SalariesWagesAndPayrollTaxes	94362000	USD
CY2020Q2	nsp	Salaries Wages And Payroll Taxes SalariesWagesAndPayrollTaxes	90710000	USD
	nsp	Salaries Wages And Payroll Taxes SalariesWagesAndPayrollTaxes	197437000	USD
	nsp	Salaries Wages And Payroll Taxes SalariesWagesAndPayrollTaxes	177211000	USD
CY2021Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	13781000	USD
CY2020Q2	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	10694000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	25603000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	17246000	USD
CY2021Q2	us-gaap	Sales Commissions And Fees SalesCommissionsAndFees	8251000	USD
CY2020Q2	us-gaap	Sales Commissions And Fees SalesCommissionsAndFees	7475000	USD
	us-gaap	Sales Commissions And Fees SalesCommissionsAndFees	15970000	USD
	us-gaap	Sales Commissions And Fees SalesCommissionsAndFees	15935000	USD
CY2021Q2	us-gaap	Advertising Expense AdvertisingExpense	8975000	USD
CY2020Q2	us-gaap	Advertising Expense AdvertisingExpense	5720000	USD
	us-gaap	Advertising Expense AdvertisingExpense	14297000	USD
	us-gaap	Advertising Expense AdvertisingExpense	10553000	USD
CY2021Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	29211000	USD
CY2020Q2	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	24755000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	60847000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	59608000	USD
CY2021Q2	us-gaap	Depreciation And Amortization DepreciationAndAmortization	9751000	USD
CY2020Q2	us-gaap	Depreciation And Amortization DepreciationAndAmortization	7908000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	17798000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	15510000	USD
CY2021Q2	us-gaap	Operating Expenses OperatingExpenses	164331000	USD
CY2020Q2	us-gaap	Operating Expenses OperatingExpenses	147262000	USD
	us-gaap	Operating Expenses OperatingExpenses	331952000	USD
	us-gaap	Operating Expenses OperatingExpenses	296063000	USD
CY2021Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	35223000	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	72987000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	119047000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	158208000	USD
CY2021Q2	us-gaap	Interest Income Other InterestIncomeOther	1436000	USD
CY2020Q2	us-gaap	Interest Income Other InterestIncomeOther	369000	USD
	us-gaap	Interest Income Other InterestIncomeOther	1979000	USD
	us-gaap	Interest Income Other InterestIncomeOther	2248000	USD
CY2021Q2	us-gaap	Interest Expense InterestExpense	1975000	USD
CY2020Q2	us-gaap	Interest Expense InterestExpense	2219000	USD
	us-gaap	Interest Expense InterestExpense	3574000	USD
	us-gaap	Interest Expense InterestExpense	4581000	USD
CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	34684000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	71137000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	117452000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	155875000	USD
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9530000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	19286000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	30376000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	41932000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	25154000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	51851000	USD
	us-gaap	Net Income Loss NetIncomeLoss	87076000	USD
	us-gaap	Net Income Loss NetIncomeLoss	113943000	USD
CY2021Q2	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	37000	USD
CY2020Q2	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	276000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	193000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	724000	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	25117000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	51575000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	86883000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	113219000	USD
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.65
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.34
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.26
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.93
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.65
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.33
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.24
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.91
CY2021Q2	nsp	Gross Billings GrossBillings	7637851000	USD
CY2020Q2	nsp	Gross Billings GrossBillings	6355683000	USD
	nsp	Gross Billings GrossBillings	15688273000	USD
	nsp	Gross Billings GrossBillings	13792437000	USD
CY2021Q2	nsp	Worksite Employee Payroll Cost WorksiteEmployeePayrollCost	6452480000	USD
CY2020Q2	nsp	Worksite Employee Payroll Cost WorksiteEmployeePayrollCost	5362317000	USD
	nsp	Worksite Employee Payroll Cost WorksiteEmployeePayrollCost	13216067000	USD
	nsp	Worksite Employee Payroll Cost WorksiteEmployeePayrollCost	11569588000	USD
CY2021Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1185371000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	993366000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2472206000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2222849000	USD
	us-gaap	Net Income Loss NetIncomeLoss	87076000	USD
	us-gaap	Net Income Loss NetIncomeLoss	113943000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	17798000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	15510000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	25603000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	17246000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	9161000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	4668000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	203559000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	8156000	USD
	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	6979000	USD
	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	13076000	USD
	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	7609000	USD
	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-8842000	USD
	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-5407000	USD
	us-gaap	Increase Decrease In Other Noncurrent Assets IncreaseDecreaseInOtherNoncurrentAssets	-6979000	USD
	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-2140000	USD
	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	-1680000	USD
	us-gaap	Increase Decrease In Other Employee Related Liabilities IncreaseDecreaseInOtherEmployeeRelatedLiabilities	-114985000	USD
	us-gaap	Increase Decrease In Other Employee Related Liabilities IncreaseDecreaseInOtherEmployeeRelatedLiabilities	-57756000	USD
	nsp	Increase Decreasein Wse Epayrollexpense IncreaseDecreaseinWSEEpayrollexpense	195045000	USD
	nsp	Increase Decreasein Wse Epayrollexpense IncreaseDecreaseinWSEEpayrollexpense	7209000	USD
	us-gaap	Increase Decrease In Health Care Insurance Liabilities IncreaseDecreaseInHealthCareInsuranceLiabilities	-3621000	USD
	us-gaap	Increase Decrease In Health Care Insurance Liabilities IncreaseDecreaseInHealthCareInsuranceLiabilities	8534000	USD
	us-gaap	Increase Decrease In Workers Compensation Liabilities IncreaseDecreaseInWorkersCompensationLiabilities	-877000	USD
	us-gaap	Increase Decrease In Workers Compensation Liabilities IncreaseDecreaseInWorkersCompensationLiabilities	-357000	USD
	us-gaap	Increase Decrease In Accrued Salaries IncreaseDecreaseInAccruedSalaries	13697000	USD
	us-gaap	Increase Decrease In Accrued Salaries IncreaseDecreaseInAccruedSalaries	-19273000	USD
	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	-7022000	USD
	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	32228000	USD
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-80081000	USD
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	918000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	6995000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	114861000	USD
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	30862000	USD
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	25438000	USD
	nsp	Marketable Securities Proceeds From Dispositions MarketableSecuritiesProceedsFromDispositions	0	USD
	nsp	Marketable Securities Proceeds From Dispositions MarketableSecuritiesProceedsFromDispositions	484000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	30340000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	27625000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	20708000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	39466000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-21230000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-36795000	USD
	nsp	Treasury Stock Acquired TreasuryStockAcquired	38536000	USD
	nsp	Treasury Stock Acquired TreasuryStockAcquired	61230000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	32828000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	31074000	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	100000000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	4027000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	4247000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-67337000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	11943000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-81572000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	90009000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	786699000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	592550000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	705127000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	682559000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	554846000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	367342000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	45522000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	49295000	USD
CY2020Q4	nsp	Deposits Workers Compensation DepositsWorkersCompensation	186331000	USD
CY2019Q4	nsp	Deposits Workers Compensation DepositsWorkersCompensation	175913000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	786699000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	592550000	USD
CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	455387000	USD
CY2020Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	459399000	USD
CY2021Q2	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	46128000	USD
CY2020Q2	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	45216000	USD
CY2021Q2	nsp	Deposits Workers Compensation DepositsWorkersCompensation	203612000	USD
CY2020Q2	nsp	Deposits Workers Compensation DepositsWorkersCompensation	177944000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	705127000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	682559000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	15047000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	10196000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	44132000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	38536000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	0	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	25603000	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	240000	USD
	us-gaap	Stockholders Equity Other StockholdersEquityOther	-1582000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	32828000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-7000	USD
	us-gaap	Net Income Loss NetIncomeLoss	87076000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	87262000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	4079000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	61230000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation Gross StockIssuedDuringPeriodValueShareBasedCompensationGross	0	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	17246000	USD
	us-gaap	Stockholders Equity Other StockholdersEquityOther	-1605000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	31074000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	69000	USD
	us-gaap	Net Income Loss NetIncomeLoss	113943000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	44638000	USD
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	73644000	USD
CY2021Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	8850000	USD
CY2021Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	13781000	USD
CY2021Q2	us-gaap	Stockholders Equity Other StockholdersEquityOther	-900000	USD
CY2021Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	17367000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	25154000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	87262000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	-3310000	USD
CY2020Q2	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	27000	USD
	nsp	Number Of Days In Advance Of Beginning Of Reporting Quarter Carrier Establishes Cash Funding Rates NumberOfDaysInAdvanceOfBeginningOfReportingQuarterCarrierEstablishesCashFundingRates	P90D
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10694000	USD
CY2020Q2	us-gaap	Stockholders Equity Other StockholdersEquityOther	-963000	USD
CY2020Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	15517000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-16000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	51851000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	44638000	USD
CY2021Q2	nsp	Percentageofourhealthinsurancecoverageprovidedby United PercentageofourhealthinsurancecoverageprovidedbyUnited	0.87
CY2021Q2	nsp	Prepaid Health Insurance Noncurrent PrepaidHealthInsuranceNoncurrent	9000000.0	USD
CY2021Q2	nsp	Required Deposit For Health Care Costs RequiredDepositForHealthCareCosts	6500000	USD
CY2021Q2	nsp	Prepaid Health Insurance Current And Noncurrent PrepaidHealthInsuranceCurrentAndNoncurrent	600000	USD
CY2021Q2	nsp	Prepaid Health Insurance Noncurrent PrepaidHealthInsuranceNoncurrent	9000000.0	USD
CY2021Q2	nsp	Prepaid Health Insurance Current PrepaidHealthInsuranceCurrent	-8400000	USD
CY2021Q2	nsp	Premiums Owed To United PremiumsOwedToUnited	14500000	USD
CY2021Q2	nsp	Benefits Costs Incurred Reduced Relatedto Runoff BenefitsCostsIncurredReducedRelatedtoRunoff	5700000	USD
CY2020Q2	nsp	Benefits Costs Incurred Reduced Relatedto Runoff BenefitsCostsIncurredReducedRelatedtoRunoff	-3000000.0	USD
CY2021Q2	nsp	Workers Compensation Maximum Economic Burden First Layer Of Claims Per Occurrence WorkersCompensationMaximumEconomicBurdenFirstLayerOfClaimsPerOccurrence	1000000	USD
CY2021Q2	nsp	Workers Compensation Maximum Economic Burden First Layer Of Claims Per Occurrence WorkersCompensationMaximumEconomicBurdenFirstLayerOfClaimsPerOccurrence	1000000	USD
CY2021Q2	nsp	Workers Compensation Maximum Aggregate Economic Burden For Claims In Excess Of First Layer Cap Per Policy Year WorkersCompensationMaximumAggregateEconomicBurdenForClaimsInExcessOfFirstLayerCapPerPolicyYear	6000000	USD
CY2021Q2	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
	nsp	Decrease Increase In Accrued Workers Compensation Costs For Changes In Estimated Losses DecreaseIncreaseInAccruedWorkersCompensationCostsForChangesInEstimatedLosses	23000000.0	USD
	nsp	Decrease Increase In Accrued Workers Compensation Costs For Changes In Estimated Losses DecreaseIncreaseInAccruedWorkersCompensationCostsForChangesInEstimatedLosses	22200000	USD
	nsp	Us Treasury Rates That Correspond With Weighted Average Estimated Claim Payout Period USTreasuryRatesThatCorrespondWithWeightedAverageEstimatedClaimPayoutPeriod	0.005
	nsp	Us Treasury Rates That Correspond With Weighted Average Estimated Claim Payout Period USTreasuryRatesThatCorrespondWithWeightedAverageEstimatedClaimPayoutPeriod	0.008
CY2020Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Opening Balance Adjustments LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseOpeningBalanceAdjustments	240761000	USD
CY2019Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Opening Balance Adjustments LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseOpeningBalanceAdjustments	242904000	USD
	nsp	Workers Compensation Expense WorkersCompensationExpense	20559000	USD
	nsp	Workers Compensation Expense WorkersCompensationExpense	21888000	USD
	nsp	Workers Compensation Discount Changed During Period WorkersCompensationDiscountChangedDuringPeriod	407000	USD
	nsp	Workers Compensation Discount Changed During Period WorkersCompensationDiscountChangedDuringPeriod	223000	USD
	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	22904000	USD
	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	22298000	USD
CY2021Q2	us-gaap	Workers Compensation Liability Current And Noncurrent WorkersCompensationLiabilityCurrentAndNoncurrent	238823000	USD
CY2020Q2	us-gaap	Workers Compensation Liability Current And Noncurrent WorkersCompensationLiabilityCurrentAndNoncurrent	242717000	USD
CY2021Q2	nsp	Workers Compensation Liability Net Of Admin Fees Current WorkersCompensationLiabilityNetOfAdminFeesCurrent	46120000	USD
CY2020Q2	nsp	Workers Compensation Liability Net Of Admin Fees Current WorkersCompensationLiabilityNetOfAdminFeesCurrent	45216000	USD
CY2021Q2	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	192703000	USD
CY2020Q2	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	197501000	USD
CY2021Q2	us-gaap	Workers Compensation Liability Current And Noncurrent WorkersCompensationLiabilityCurrentAndNoncurrent	238823000	USD
CY2020Q2	us-gaap	Workers Compensation Liability Current And Noncurrent WorkersCompensationLiabilityCurrentAndNoncurrent	242717000	USD
CY2021Q2	nsp	Workers Compensation Administrative Fees Accrued WorkersCompensationAdministrativeFeesAccrued	3700000	USD
	nsp	Undiscounted Accrued Workers Compensation Costs UndiscountedAccruedWorkersCompensationCosts	254800000	USD
	nsp	Undiscounted Accrued Workers Compensation Costs UndiscountedAccruedWorkersCompensationCosts	261400000	USD
	nsp	Time Period Incurred Claims Expected To Be Paid Recorded As Restricted TimePeriodIncurredClaimsExpectedToBePaidRecordedAsRestricted	P1Y
CY2021Q2	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	46100000	USD
CY2021Q2	nsp	Deposits Workers Compensation DepositsWorkersCompensation	203600000	USD
	nsp	Time Period Estimate Of Incurred Claim Costs To Be Paid Included In Short Term Liabilities TimePeriodEstimateOfIncurredClaimCostsToBePaidIncludedInShortTermLiabilities	P1Y
CY2021Q2	nsp	Unbilled Unbilled	585400000	USD
CY2020Q4	nsp	Unbilled Unbilled	380800000	USD
CY2021Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1185371000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	993366000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2472206000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2222849000	USD
CY2021Q2	nsp	Money Market Funds Overnight Holdings At Carrying Value MoneyMarketFundsOvernightHoldingsAtCarryingValue	387027000	USD
CY2020Q4	nsp	Money Market Funds Overnight Holdings At Carrying Value MoneyMarketFundsOvernightHoldingsAtCarryingValue	503221000	USD
CY2021Q2	us-gaap	Short Term Investments ShortTermInvestments	82584000	USD
CY2020Q4	us-gaap	Short Term Investments ShortTermInvestments	82521000	USD
CY2021Q2	us-gaap	Cash Cash	31931000	USD
CY2020Q4	us-gaap	Cash Cash	33692000	USD
CY2021Q2	srt	Drafts Payable DraftsPayable	11558000	USD
CY2020Q4	srt	Drafts Payable DraftsPayable	30059000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	489984000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	589375000	USD
CY2021Q2	nsp	Payroll Withholdings Included In Cash Balance PayrollWithholdingsIncludedInCashBalance	226700000	USD
CY2020Q4	nsp	Payroll Withholdings Included In Cash Balance PayrollWithholdingsIncludedInCashBalance	342000000.0	USD
CY2021Q2	nsp	Client Prepayments Included In Cash Balance ClientPrepaymentsIncludedInCashBalance	-50400000	USD
CY2020Q4	nsp	Client Prepayments Included In Cash Balance ClientPrepaymentsIncludedInCashBalance	-35300000	USD
CY2021Q2	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	435014000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	551213000	USD
CY2021Q2	us-gaap	Us Government Securities At Carrying Value USGovernmentSecuritiesAtCarryingValue	12318000	USD
CY2020Q4	us-gaap	Us Government Securities At Carrying Value USGovernmentSecuritiesAtCarryingValue	10531000	USD
CY2021Q2	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	22279000	USD
CY2020Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	23998000	USD
CY2021Q2	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	469611000	USD
CY2020Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	585742000	USD
CY2021Q2	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	34599000	USD
	us-gaap	Available For Sale Securities Gross Unrealized Gains AvailableForSaleSecuritiesGrossUnrealizedGains	1000	USD
CY2021Q2	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	1000000.0	USD
	us-gaap	Available For Sale Securities Gross Unrealized Loss AvailableForSaleSecuritiesGrossUnrealizedLoss	3000	USD
CY2021Q2	us-gaap	Available For Sale Securities AvailableForSaleSecurities	34597000	USD
CY2020Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	34524000	USD
	us-gaap	Available For Sale Securities Gross Unrealized Gains AvailableForSaleSecuritiesGrossUnrealizedGains	9000	USD
	us-gaap	Available For Sale Securities Gross Unrealized Loss AvailableForSaleSecuritiesGrossUnrealizedLoss	4000	USD
CY2020Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	34529000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	29469000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	29468000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	5130000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	5129000	USD
CY2021Q2	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	500000000	USD
CY2021Q2	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	550000000	USD
	nsp	Percentage Of Subsidiary Stock Securing Debt PercentageOfSubsidiaryStockSecuringDebt	0.65
CY2021Q2	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	369400000	USD
CY2021Q2	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	129600000	USD
CY2021Q2	nsp	Applicable Margin Federal Funds Rate ApplicableMarginFederalFundsRate	0.0050
CY2021Q2	nsp	Applicable Margin30 Day Libor ApplicableMargin30DayLibor	0.0200
	us-gaap	Line Of Credit Facility Unused Capacity Commitment Fee Percentage LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage	0.0025
	us-gaap	Line Of Credit Facility Interest Rate During Period LineOfCreditFacilityInterestRateDuringPeriod	0.019
	nsp	Aggregatenumberofsharesrepurchasedduringtheperiod Aggregatenumberofsharesrepurchasedduringtheperiod	437903	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	147281	shares
CY2021Q2	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	980856	shares
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	290622	shares
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.40
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.40
CY2021Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.40
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	32800000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	31100000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	25154000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	51851000	USD
	us-gaap	Net Income Loss NetIncomeLoss	87076000	USD
	us-gaap	Net Income Loss NetIncomeLoss	113943000	USD
CY2021Q2	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	37000	USD
CY2020Q2	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	276000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	193000	USD
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Diluted ParticipatingSecuritiesDistributedAndUndistributedEarningsLossDiluted	724000	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	25117000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	51575000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	86883000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	113219000	USD
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	38591000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	38567000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	38410000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	38684000	shares
CY2021Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	232000	shares
CY2020Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	79000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	427000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	173000	shares
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	38823000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	38646000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	38837000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	38857000	shares
	us-gaap	Loss Contingency Accrual Provision LossContingencyAccrualProvision	0	USD

Files In Submission

Name	View Source	Status
0001000753-21-000038-index-headers.html	Edgar Link	pending
0001000753-21-000038-index.html	Edgar Link	pending
0001000753-21-000038.txt	Edgar Link	pending
0001000753-21-000038-xbrl.zip	Edgar Link	pending
a06302021-nspex311.htm	Edgar Link	pending
a06302021-nspex312.htm	Edgar Link	pending
a06302021-nspex321.htm	Edgar Link	pending
a06302021-nspex322.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
nsp-20210630.htm	Edgar Link	pending
nsp-20210630.xsd	Edgar Link	pending
nsp-20210630_cal.xml	Edgar Link	unprocessable
nsp-20210630_def.xml	Edgar Link	unprocessable
nsp-20210630_g1.jpg	Edgar Link	pending
nsp-20210630_g10.jpg	Edgar Link	pending
nsp-20210630_g11.jpg	Edgar Link	pending
nsp-20210630_g2.jpg	Edgar Link	pending
nsp-20210630_g3.jpg	Edgar Link	pending
nsp-20210630_g4.jpg	Edgar Link	pending
nsp-20210630_g5.jpg	Edgar Link	pending
nsp-20210630_g6.jpg	Edgar Link	pending
nsp-20210630_g7.jpg	Edgar Link	pending
nsp-20210630_g8.jpg	Edgar Link	pending
nsp-20210630_g9.jpg	Edgar Link	pending
nsp-20210630_htm.xml	Edgar Link	completed
nsp-20210630_lab.xml	Edgar Link	unprocessable
nsp-20210630_pre.xml	Edgar Link	unprocessable
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
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R2.htm	Edgar Link	pending
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R3.htm	Edgar Link	pending
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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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$NSP
INSPERITY, INC. Stock $nsp

2021 Q2 Form 10-Q Financial Statement

#000100075321000038 Filed on August 03, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NSP INSPERITY, INC. Stock $nsp

2021 Q2 Form 10-Q Financial Statement

#000100075321000038 Filed on August 03, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$NSP
INSPERITY, INC. Stock $nsp