$MWA
Mueller Water Products, Inc. Stock $mwa

$mwa Overview Financials Valuation SEC Filings Company Website

2022 Q4 Form 10-K Financial Statement

#000135059322000061 Filed on November 18, 2022

Income Statement

Concept	2022 Q4	2022 Q3	2022
Revenue	$314.8M	$331.4M	$1.247B
YoY Change	15.61%	12.11%	12.28%
Cost Of Revenue	$221.6M	$245.8M	$883.1M
YoY Change	19.98%	17.44%	17.36%
Gross Profit	$93.20M	$85.60M	$364.3M
YoY Change	6.39%	-0.81%	1.62%
Gross Profit Margin	29.61%	25.83%	29.2%
Selling, General & Admin	$62.90M	$63.60M	$238.7M
YoY Change	11.72%	12.37%	9.1%
% of Gross Profit	67.49%	74.3%	65.52%
Research & Development			$24.50M
YoY Change			43.27%
% of Gross Profit			6.73%
Depreciation & Amortization	$14.80M	$15.60M	$60.50M
YoY Change	-2.63%	4.0%	1.51%
% of Gross Profit	15.88%	18.22%	16.61%
Operating Expenses	$59.20M	$63.60M	$238.7M
YoY Change	0.85%	12.37%	5.25%
Operating Profit	$34.00M	$22.00M	$125.6M
YoY Change	17.65%	-25.93%	-4.63%
Interest Expense	-$3.700M	-$3.900M	-$16.90M
YoY Change	-13.95%	-11.36%	-171.01%
% of Operating Profit	-10.88%	-17.73%	-13.46%
Other Income/Expense, Net	-$4.600M	$1.000M	$3.900M
YoY Change	39.39%	11.11%	18.18%
Pretax Income	$29.40M	$8.700M	$98.60M
YoY Change	14.84%	-64.2%	3.9%
Income Tax	$6.900M	$1.600M	$22.00M
% Of Pretax Income	23.47%	18.39%	22.31%
Net Earnings	$22.50M	$7.100M	$76.60M
YoY Change	15.98%	-61.41%	8.81%
Net Earnings / Revenue	7.15%	2.14%	6.14%
Basic Earnings Per Share	$0.14		$0.49
Diluted Earnings Per Share	$0.14	$45.22K	$484.8K
COMMON SHARES
Basic Shares Outstanding	155.9M shares	156.7M shares	157.4M shares
Diluted Shares Outstanding	157.0M shares		158.0M shares

Balance Sheet

Concept	2022 Q4	2022 Q3	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$125.6M	$146.5M	$146.5M
YoY Change	-39.41%	-35.6%	-35.6%
Cash & Equivalents	$125.6M	$146.5M	$146.5M
Short-Term Investments
Other Short-Term Assets	$30.40M	$26.80M	$26.80M
YoY Change	-0.65%	-8.53%	45.65%
Inventory	$314.0M	$278.7M	$278.7M
Prepaid Expenses
Receivables	$201.9M	$228.0M	$228.0M
Other Receivables	$3.100M	$0.00	$0.00
Total Short-Term Assets	$671.9M	$680.0M	$680.0M
YoY Change	6.99%	4.02%	4.02%
LONG-TERM ASSETS
Property, Plant & Equipment	$302.9M	$301.6M	$301.6M
YoY Change	5.58%	6.42%	-2.87%
Goodwill	$100.0M	$98.60M
YoY Change	-15.04%	-14.34%
Intangibles	$355.6M	$361.2M
YoY Change	-8.09%	-7.97%
Long-Term Investments
YoY Change
Other Assets	$56.20M	$56.70M	$56.70M
YoY Change	-24.05%	-22.65%	27.7%
Total Long-Term Assets	$814.7M	$818.1M	$818.1M
YoY Change	-5.87%	-5.35%	-5.35%
TOTAL ASSETS
Total Short-Term Assets	$671.9M	$680.0M	$680.0M
Total Long-Term Assets	$814.7M	$818.1M	$818.1M
Total Assets	$1.487B	$1.498B	$1.498B
YoY Change	-0.46%	-1.31%	-1.31%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$103.5M	$122.8M	$122.8M
YoY Change	23.36%	33.48%	33.48%
Accrued Expenses	$109.2M	$117.4M	$58.90M
YoY Change	-4.55%	-7.63%	-4.69%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$900.0K	$800.0K	$800.0K
YoY Change	-10.0%	-20.0%	-20.0%
Total Short-Term Liabilities	$213.6M	$241.0M	$241.0M
YoY Change	7.18%	9.5%	9.5%
LONG-TERM LIABILITIES
Long-Term Debt	$446.1M	$446.1M	$446.1M
YoY Change	0.04%	0.04%	0.04%
Other Long-Term Liabilities	$53.30M	$55.40M	$55.40M
YoY Change	-6.65%	-10.65%	-10.65%
Total Long-Term Liabilities	$499.4M	$501.5M	$501.5M
YoY Change	-0.72%	-1.26%	-1.26%
TOTAL LIABILITIES
Total Short-Term Liabilities	$213.6M	$241.0M	$241.0M
Total Long-Term Liabilities	$499.4M	$501.5M	$501.5M
Total Liabilities	$798.8M	$828.8M	$828.8M
YoY Change	-0.35%	0.69%	0.69%
SHAREHOLDERS EQUITY
Retained Earnings	-$544.8M	-$567.3M
YoY Change	-12.76%	-11.9%
Common Stock	$1.600M	$1.600M
YoY Change	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$687.8M	$669.3M	$669.3M
YoY Change
Total Liabilities & Shareholders Equity	$1.487B	$1.498B	$1.498B
YoY Change	-0.46%	-1.31%	-1.31%

Cashflow Statement

Concept	2022 Q4	2022 Q3	2022
OPERATING ACTIVITIES
Net Income	$22.50M	$7.100M	$76.60M
YoY Change	15.98%	-61.41%	8.81%
Depreciation, Depletion And Amortization	$14.80M	$15.60M	$60.50M
YoY Change	-2.63%	4.0%	1.51%
Cash From Operating Activities	-$6.500M	$31.80M	$52.30M
YoY Change	-132.83%	-4.79%	-66.62%
INVESTING ACTIVITIES
Capital Expenditures	$9.900M	-$18.00M	-$54.70M
YoY Change	-190.0%	8.43%	-12.76%
Acquisitions			$200.0K
YoY Change			-98.98%
Other Investing Activities	$0.00	-$400.0K	-$200.0K
YoY Change	-100.0%	-233.33%	-98.95%
Cash From Investing Activities	-$4.800M	-$18.40M	-$54.90M
YoY Change	-55.56%	12.88%	-32.8%
FINANCING ACTIVITIES
Cash Dividend Paid	$9.500M		$36.50M
YoY Change	3.26%		4.89%
Common Stock Issuance & Retirement, Net			-$33.00M
YoY Change			-507.41%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$10.50M	-18.90M	-72.00M
YoY Change	-65.57%	3.85%	22.45%
NET CHANGE
Cash From Operating Activities	-$6.500M	31.80M	52.30M
Cash From Investing Activities	-$4.800M	-18.40M	-54.90M
Cash From Financing Activities	-$10.50M	-18.90M	-72.00M
Net Change In Cash	-$20.90M	-5.500M	-74.60M
YoY Change	3.47%	400.0%	-501.08%
FREE CASH FLOW
Cash From Operating Activities	-$6.500M	$31.80M	$52.30M
Capital Expenditures	$9.900M	-$18.00M	-$54.70M
Free Cash Flow	-$16.40M	$49.80M	$107.0M
YoY Change	-153.25%	-0.4%	-51.23%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0001350593
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-30
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-09-30
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	001-32892
CY2022	dei	Entity Registrant Name EntityRegistrantName	MUELLER WATER PRODUCTS, INC.
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	20-3547095
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	1200 Abernathy Road N.E.
CY2022	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 1200
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Atlanta
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	GA
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	30328
CY2022	dei	City Area Code CityAreaCode	(770)
CY2022	dei	Local Phone Number LocalPhoneNumber	206-4200
CY2022	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01
CY2022	dei	Trading Symbol TradingSymbol	MWA
CY2022	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	false
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2022Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	155891768	shares
CY2022Q1	dei	Entity Public Float EntityPublicFloat	2001300000	usd
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Auditor Firm AuditorFirmId	42
CY2022Q3	us-gaap	Goodwill Goodwill	98600000	usd
CY2022	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2022	dei	Auditor Location AuditorLocation	Atlanta, Georgia
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	146500000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	227500000	usd
CY2022Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5600000	usd
CY2021Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3500000	usd
CY2022Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	228000000.0	usd
CY2021Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	212200000	usd
CY2022Q3	us-gaap	Inventory Net InventoryNet	278700000	usd
CY2021Q3	us-gaap	Inventory Net InventoryNet	184700000	usd
CY2022Q3	us-gaap	Other Assets Current OtherAssetsCurrent	26800000	usd
CY2021Q3	us-gaap	Other Assets Current OtherAssetsCurrent	29300000	usd
CY2022Q3	us-gaap	Assets Current AssetsCurrent	680000000.0	usd
CY2021Q3	us-gaap	Assets Current AssetsCurrent	653700000	usd
CY2022Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	301600000	usd
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	283400000	usd
CY2022Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	361200000	usd
CY2021Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	392500000	usd
CY2022Q3	us-gaap	Goodwill Goodwill	98600000	usd
CY2021Q3	us-gaap	Goodwill Goodwill	115100000	usd
CY2022Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	56700000	usd
CY2021Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	73300000	usd
CY2022Q3	us-gaap	Assets Assets	1498100000	usd
CY2021Q3	us-gaap	Assets Assets	1518000000	usd
CY2022Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	800000	usd
CY2021Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	1000000.0	usd
CY2022Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	122800000	usd
CY2021Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	92000000.0	usd
CY2022Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	117400000	usd
CY2021Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	127100000	usd
CY2022Q3	us-gaap	Liabilities Current LiabilitiesCurrent	241000000.0	usd
CY2021Q3	us-gaap	Liabilities Current LiabilitiesCurrent	220100000	usd
CY2022Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	446100000	usd
CY2021Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	445900000	usd
CY2022Q3	us-gaap	Deferred Income Taxes And Other Tax Liabilities Noncurrent DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent	86300000	usd
CY2021Q3	us-gaap	Deferred Income Taxes And Other Tax Liabilities Noncurrent DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent	95100000	usd
CY2022Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	55400000	usd
CY2021Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	62000000.0	usd
CY2022Q3	us-gaap	Liabilities Liabilities	828800000	usd
CY2021Q3	us-gaap	Liabilities Liabilities	823100000	usd
CY2022Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	600000000	shares
CY2022Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	155844138	shares
CY2021Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	157955433	shares
CY2022Q3	us-gaap	Common Stock Value CommonStockValue	1600000	usd
CY2021Q3	us-gaap	Common Stock Value CommonStockValue	1600000	usd
CY2022Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1279600000	usd
CY2021Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1342200000	usd
CY2022Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-567300000	usd
CY2021Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-643900000	usd
CY2022Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-44600000	usd
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-5000000.0	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	669300000	usd
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	694900000	usd
CY2022Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1498100000	usd
CY2021Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1518000000	usd
CY2022	us-gaap	Revenues Revenues	1247400000	usd
CY2021	us-gaap	Revenues Revenues	1111000000	usd
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CY2021	us-gaap	Cost Of Revenue CostOfRevenue	752500000	usd
CY2020	us-gaap	Cost Of Revenue CostOfRevenue	635900000	usd
CY2022	us-gaap	Gross Profit GrossProfit	364300000	usd
CY2021	us-gaap	Gross Profit GrossProfit	358500000	usd
CY2020	us-gaap	Gross Profit GrossProfit	328200000	usd
CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	238700000	usd
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	218800000	usd
CY2020	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	198400000	usd
CY2022	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	7200000	usd
CY2021	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	8000000.0	usd
CY2020	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	13000000.0	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	6800000	usd
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022	us-gaap	Operating Expenses OperatingExpenses	252700000	usd
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CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	111600000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	131700000	usd
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
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CY2020	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	200000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22000000.0	usd
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	116800000	usd
CY2022	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-3900000	usd
CY2021	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-3300000	usd
CY2020	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-3000000.0	usd
CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-16900000	usd
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-23400000	usd
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-25500000	usd
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CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	98600000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	94900000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	94100000	usd
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CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24500000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22100000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	76600000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	70400000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	72000000.0	usd
CY2022	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.49
CY2021	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.44
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.46
CY2022	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.48
CY2021	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.44
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.45
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	158400000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	157800000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	158000000.0	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	159200000	shares
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-4400000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	4700000	usd
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	158600000	shares
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.232
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CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.21
CY2022	us-gaap	Net Income Loss NetIncomeLoss	76600000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	70400000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	72000000.0	usd
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CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-25500000	usd
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CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	8000000.0	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-39600000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	19700000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	11300000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	37000000.0	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	90100000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	83300000	usd
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	592300000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	72000000.0	usd
CY2020	us-gaap	Adjustments To Additional Paid In Capital Dividends In Excess Of Retained Earnings AdjustmentsToAdditionalPaidInCapitalDividendsInExcessOfRetainedEarnings	33100000	usd
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5300000	usd
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	3500000	usd
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	5000000.0	usd
CY2020	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	4700000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	11300000	usd
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	640700000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	70400000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Dividends In Excess Of Retained Earnings AdjustmentsToAdditionalPaidInCapitalDividendsInExcessOfRetainedEarnings	34800000	usd
CY2021Q3	mwa	Cumulative Effect Of Accounting Change CumulativeEffectOfAccountingChange	-100000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8100000	usd
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1900000	usd
CY2021	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	10000000.0	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	19700000	usd
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	694900000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	76600000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	76600000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Dividends In Excess Of Retained Earnings AdjustmentsToAdditionalPaidInCapitalDividendsInExcessOfRetainedEarnings	36500000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8700000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	2000000.0	usd
CY2022	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	35000000.0	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-39600000	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	669300000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	76600000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	70400000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	72000000.0	usd
CY2022	us-gaap	Depreciation Depreciation	32000000.0	usd
CY2021	us-gaap	Depreciation Depreciation	31400000	usd
CY2020	us-gaap	Depreciation Depreciation	29600000	usd
CY2022	us-gaap	Adjustment For Amortization AdjustmentForAmortization	28500000	usd
CY2021	us-gaap	Adjustment For Amortization AdjustmentForAmortization	28200000	usd
CY2020	us-gaap	Adjustment For Amortization AdjustmentForAmortization	28200000	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	6800000	usd
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-16700000	usd
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	8700000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	8100000	usd
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	5300000	usd
CY2022	us-gaap	Pension Expense Reversal Of Expense Noncash PensionExpenseReversalOfExpenseNoncash	-2600000	usd
CY2021	us-gaap	Pension Expense Reversal Of Expense Noncash PensionExpenseReversalOfExpenseNoncash	-1900000	usd
CY2020	us-gaap	Pension Expense Reversal Of Expense Noncash PensionExpenseReversalOfExpenseNoncash	2800000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3500000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5300000	usd
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	7200000	usd
CY2022	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	1600000	usd
CY2021	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	3100000	usd
CY2020	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	4300000	usd
CY2022	us-gaap	Other Noncash Expense OtherNoncashExpense	1300000	usd
CY2021	us-gaap	Other Noncash Expense OtherNoncashExpense	1300000	usd
CY2020	us-gaap	Other Noncash Expense OtherNoncashExpense	3700000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	17800000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	29900000	usd
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	7500000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	98300000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	23500000	usd
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-24900000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-1300000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	4900000	usd
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-900000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	32200000	usd
CY2020	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	6600000	usd
CY2022	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-6000000.0	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	23000000.0	usd
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-17600000	usd
CY2022	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	0	usd
CY2021	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	0	usd
CY2020	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-22000000.0	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-8500000	usd
CY2021	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	37500000	usd
CY2021	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	2500000	usd
CY2020	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	1900000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	52300000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	156700000	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	140300000	usd
CY2022	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	54700000	usd
CY2021	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	62700000	usd
CY2020	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	67700000	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	200000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	19700000	usd
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
CY2022	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	usd
CY2021	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	700000	usd
CY2020	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	200000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-54900000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-81700000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-67500000	usd
CY2022	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	0	usd
CY2021	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	462400000	usd
CY2020	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	0	usd
CY2022	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	450000000.0	usd
CY2020	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	0	usd
CY2022	us-gaap	Payments Of Dividends PaymentsOfDividends	36500000	usd
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	34800000	usd
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	33100000	usd
CY2022	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	usd
CY2021	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	6000000.0	usd
CY2020	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	1100000	usd
CY2022	us-gaap	Proceeds From Other Equity ProceedsFromOtherEquity	0	usd
CY2021	us-gaap	Proceeds From Other Equity ProceedsFromOtherEquity	3900000	usd
CY2020	us-gaap	Proceeds From Other Equity ProceedsFromOtherEquity	0	usd
CY2022	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	usd
CY2021	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	usd
CY2020	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	5200000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1800000	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1000000.0	usd
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	900000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	2000000.0	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1900000	usd
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	3500000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	35000000.0	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	10000000.0	usd
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	5000000.0	usd
CY2022	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	700000	usd
CY2021	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	400000	usd
CY2020	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	400000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-72000000.0	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-58800000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-41400000	usd
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-6400000	usd
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2400000	usd
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	800000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-81000000.0	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	18600000	usd
CY2019Q4	us-gaap	Variable Interest Entity Ownership Percentage VariableInterestEntityOwnershipPercentage	0.51
CY2022Q3	mwa	Proceeds From Other Equity Gross Amount ProceedsFromOtherEquityGrossAmount	4800000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	32200000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	227500000	usd
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	208900000	usd
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	176700000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	146500000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	227500000	usd
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	208900000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	19200000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	25300000	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	24300000	usd
CY2022	us-gaap	Income Taxes Paid IncomeTaxesPaid	26900000	usd
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	16800000	usd
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	15300000	usd
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	business_segments
CY2014Q3	us-gaap	Variable Interest Entity Ownership Percentage VariableInterestEntityOwnershipPercentage	0.49
CY2021	us-gaap	Payments To Acquire Interest In Joint Venture PaymentsToAcquireInterestInJointVenture	1700000	usd
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1500000	usd
CY2022Q3	mwa	Intercompany Loan Related To Nmtc IntercompanyLoanRelatedToNMTC	12200000	usd
CY2022Q3	mwa	Investment Fund Contribution For Nmtc InvestmentFundContributionForNMTC	16500000	usd
CY2022Q3	mwa	Sub Cde Loan From Nmtc SubCDELoanFromNMTC	16200000	usd
CY2021	us-gaap	Proceeds From Other Equity ProceedsFromOtherEquity	3900000	usd
CY2021	us-gaap	Proceeds From Other Equity ProceedsFromOtherEquity	3900000	usd
CY2020	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	100000	usd
CY2021Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	3500000	usd
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2500000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2500000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1100000	usd
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1100000	usd
CY2022	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	400000	usd
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	100000	usd
CY2022Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	5600000	usd
CY2021Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	3500000	usd
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	2500000	usd
CY2021Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	14800000	usd
CY2020Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	11700000	usd
CY2019Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	7500000	usd
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	1800000	usd
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	5900000	usd
CY2020	us-gaap	Inventory Write Down InventoryWriteDown	4700000	usd
CY2022	mwa	Inventory Valuation Allowances And Reserves Deduction InventoryValuationAllowancesAndReservesDeduction	-1400000	usd
CY2021	mwa	Inventory Valuation Allowances And Reserves Deduction InventoryValuationAllowancesAndReservesDeduction	-3600000	usd
CY2020	mwa	Inventory Valuation Allowances And Reserves Deduction InventoryValuationAllowancesAndReservesDeduction	-700000	usd
CY2022	us-gaap	Valuation Allowances And Reserves Adjustments ValuationAllowancesAndReservesAdjustments	1300000	usd
CY2021	us-gaap	Valuation Allowances And Reserves Adjustments ValuationAllowancesAndReservesAdjustments	800000	usd
CY2020	us-gaap	Valuation Allowances And Reserves Adjustments ValuationAllowancesAndReservesAdjustments	200000	usd
CY2022Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	16500000	usd
CY2021Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	14800000	usd
CY2020Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	11700000	usd
CY2022Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	3600000	usd
CY2021Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	3800000	usd
CY2022Q3	mwa	Exposure To Workers Compensation Claims Per Incident ExposureToWorkersCompensationClaimsPerIncident	800000	usd
CY2022Q3	us-gaap	Workers Compensation Liability Current And Noncurrent WorkersCompensationLiabilityCurrentAndNoncurrent	11100000	usd
CY2021Q3	us-gaap	Workers Compensation Liability Current And Noncurrent WorkersCompensationLiabilityCurrentAndNoncurrent	10500000	usd
CY2021Q3	mwa	Warranty Liability Unclassified WarrantyLiabilityUnclassified	9700000	usd
CY2020Q3	mwa	Warranty Liability Unclassified WarrantyLiabilityUnclassified	14400000	usd
CY2019Q3	mwa	Warranty Liability Unclassified WarrantyLiabilityUnclassified	17100000	usd
CY2022	us-gaap	Product Warranty Expense ProductWarrantyExpense	9500000	usd
CY2021	us-gaap	Product Warranty Expense ProductWarrantyExpense	3500000	usd
CY2020	us-gaap	Product Warranty Expense ProductWarrantyExpense	2600000	usd
CY2022	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	8500000	usd
CY2021	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	8200000	usd
CY2020	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	5300000	usd
CY2022Q3	mwa	Warranty Liability Unclassified WarrantyLiabilityUnclassified	10700000	usd
CY2021Q3	mwa	Warranty Liability Unclassified WarrantyLiabilityUnclassified	9700000	usd
CY2020Q3	mwa	Warranty Liability Unclassified WarrantyLiabilityUnclassified	14400000	usd
CY2022Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5600000	usd
CY2022Q3	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	5600000	usd
CY2022	mwa	Income Tax Benefit Likelihood Of Realization Threshold IncomeTaxBenefitLikelihoodOfRealizationThreshold	0.50
CY2022Q3	us-gaap	Billed Contract Receivables BilledContractReceivables	230500000	usd
CY2021Q3	us-gaap	Billed Contract Receivables BilledContractReceivables	213400000	usd
CY2022Q3	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	3100000	usd
CY2021Q3	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	2300000	usd
CY2022Q3	us-gaap	Accounts Receivable Gross AccountsReceivableGross	233600000	usd
CY2021Q3	us-gaap	Accounts Receivable Gross AccountsReceivableGross	215700000	usd
CY2022Q3	us-gaap	Deferred Revenue DeferredRevenue	8100000	usd
CY2021Q3	us-gaap	Deferred Revenue DeferredRevenue	5400000	usd
CY2021Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3500000	usd
CY2022Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	228000000.0	usd
CY2021Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	212200000	usd
CY2022	us-gaap	Operating Lease Expense OperatingLeaseExpense	5800000	usd
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	6100000	usd
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	6300000	usd
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1300000	usd
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1200000	usd
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1300000	usd
CY2022	mwa	Total Lease Expense TotalLeaseExpense	7100000	usd
CY2021	mwa	Total Lease Expense TotalLeaseExpense	7300000	usd
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	7300000	usd
CY2020	mwa	Total Lease Expense TotalLeaseExpense	7600000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	5800000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	6100000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1300000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1200000	usd
CY2022Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	26000000.0	usd
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	27100000	usd
CY2022Q3	mwa	Finance Lease Right Of Use Asset After Accumulated Amortization FinanceLeaseRightOfUseAssetAfterAccumulatedAmortization	1400000	usd
CY2021Q3	mwa	Finance Lease Right Of Use Asset After Accumulated Amortization FinanceLeaseRightOfUseAssetAfterAccumulatedAmortization	2200000	usd
CY2022Q3	mwa	Total Right Of Use Assets TotalRightOfUseAssets	27400000	usd
CY2021Q3	mwa	Total Right Of Use Assets TotalRightOfUseAssets	29300000	usd
CY2022Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4400000	usd
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4000000.0	usd
CY2022Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	22400000	usd
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	24600000	usd
CY2022Q3	mwa	Finance Lease Liability Current Portion FinanceLeaseLiabilityCurrentPortion	800000	usd
CY2021Q3	mwa	Finance Lease Liability Current Portion FinanceLeaseLiabilityCurrentPortion	1000000.0	usd
CY2022Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	800000	usd
CY2021Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	1200000	usd
CY2022Q3	mwa	Total Lease Liabilities TotalLeaseLiabilities	28400000	usd
CY2021Q3	mwa	Total Lease Liabilities TotalLeaseLiabilities	30800000	usd
CY2022Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y8M1D
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y9M25D
CY2022Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y1M24D
CY2021Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y6M10D
CY2022Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0548
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0536
CY2022Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0364
CY2021Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0424
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	5900000	usd
CY2022Q3	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	900000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	5700000	usd
CY2022Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	500000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	5100000	usd
CY2022Q3	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	200000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	4700000	usd
CY2022Q3	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	100000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	3900000	usd
CY2022Q3	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	0	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	7300000	usd
CY2022Q3	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	32600000	usd
CY2022Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	1700000	usd
CY2022Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	5800000	usd
CY2022Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	100000	usd
CY2022Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	26800000	usd
CY2022Q3	mwa	Pv Of Finance Lease Liabilities PVOfFinanceLeaseLiabilities	1600000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	19700000	usd
CY2022	us-gaap	Payments For Previous Acquisition PaymentsForPreviousAcquisition	19500000	usd
CY2022	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	12	usd
CY2022Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets Receivables BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables	500000	usd
CY2022Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Inventory BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory	600000	usd
CY2022Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets	900000	usd
CY2022Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired Goodwill And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet	12100000	usd
CY2022Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities Accounts Payable BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable	800000	usd
CY2022Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Current Liabilities BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities	1300000	usd
CY2022Q3	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	19500000	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	6800000	usd
CY2022Q3	mwa	Intangible Assets Gross Including Goodwill IntangibleAssetsGrossIncludingGoodwill	764200000	usd
CY2021Q3	mwa	Intangible Assets Gross Including Goodwill IntangibleAssetsGrossIncludingGoodwill	770300000	usd
CY2022Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	361200000	usd
CY2021Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	392500000	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	6800000	usd
CY2020Q3	us-gaap	Goodwill Gross GoodwillGross	817100000	usd
CY2020Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	717300000	usd
CY2020Q3	us-gaap	Goodwill Goodwill	99800000	usd
CY2021	us-gaap	Indefinite Lived Intangible Assets Foreign Currency Translation Gain Loss IndefiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss	3200000	usd
CY2021Q3	us-gaap	Goodwill Gross GoodwillGross	832400000	usd
CY2021Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	717300000	usd
CY2021Q3	us-gaap	Goodwill Goodwill	115100000	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	6800000	usd
CY2022	us-gaap	Indefinite Lived Intangible Assets Foreign Currency Translation Gain Loss IndefiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss	-9700000	usd
CY2022Q3	us-gaap	Goodwill Gross GoodwillGross	822700000	usd
CY2022Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	724100000	usd
CY2022Q3	us-gaap	Goodwill Goodwill	98600000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	81600000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	94000000.0	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	89700000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	17000000.0	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	900000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	4400000	usd
CY2022	mwa	Net Income Before Income Taxand Discontinued Operations NetIncomeBeforeIncomeTaxandDiscontinuedOperations	98600000	usd
CY2021	mwa	Net Income Before Income Taxand Discontinued Operations NetIncomeBeforeIncomeTaxandDiscontinuedOperations	94900000	usd
CY2020	mwa	Net Income Before Income Taxand Discontinued Operations NetIncomeBeforeIncomeTaxandDiscontinuedOperations	94100000	usd
CY2022Q3	mwa	Transition Tax Liability TransitionTaxLiability	4100000	usd
CY2021Q3	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	4500000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-4700000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	19500000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	21900000	usd
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	10900000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	4300000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6300000	usd
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	2700000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1700000	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1600000	usd
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1300000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	25500000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	29800000	usd
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	14900000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-3400000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1300000	usd
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	5600000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-900000	usd
CY2022Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	450000000	usd
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	2000000.0	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	800000	usd
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	700000	usd
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-400000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3500000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5300000	usd
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	7200000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22000000.0	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24500000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22100000	usd
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	5900000	usd
CY2021	us-gaap	Income Tax Reconciliation Deductions IncomeTaxReconciliationDeductions	200000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	20700000	usd
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	19900000	usd
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	19800000	usd
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	2600000	usd
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3100000	usd
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	3300000	usd
CY2022	mwa	Effective Income Tax Rate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxRateReconciliationUncertainTaxPositions	0	usd
CY2021	mwa	Effective Income Tax Rate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxRateReconciliationUncertainTaxPositions	-300000	usd
CY2020	mwa	Effective Income Tax Rate Reconciliation Uncertain Tax Positions EffectiveIncomeTaxRateReconciliationUncertainTaxPositions	-1000000.0	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	900000	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	600000	usd
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	600000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	800000	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	500000	usd
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Other IncomeTaxReconciliationNondeductibleExpenseOther	400000	usd
CY2022	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	1000000.0	usd
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-400000	usd
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	100000	usd
CY2022	mwa	Effective Income Tax Rate Reconciliation Foreign Investment Basis Difference EffectiveIncomeTaxRateReconciliationForeignInvestmentBasisDifference	-100000	usd
CY2021	mwa	Effective Income Tax Rate Reconciliation Foreign Investment Basis Difference EffectiveIncomeTaxRateReconciliationForeignInvestmentBasisDifference	-1500000	usd
CY2020	mwa	Effective Income Tax Rate Reconciliation Foreign Investment Basis Difference EffectiveIncomeTaxRateReconciliationForeignInvestmentBasisDifference	-100000	usd
CY2022	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-1500000	usd
CY2021	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-1700000	usd
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-500000	usd
CY2022	us-gaap	Income Tax Reconciliation Deductions IncomeTaxReconciliationDeductions	100000	usd
CY2020	us-gaap	Income Tax Reconciliation Deductions IncomeTaxReconciliationDeductions	500000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	2300000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1600000	usd
CY2020	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1800000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-200000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	2500000	usd
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-400000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22000000.0	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	24500000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	22100000	usd
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4800000	usd
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4500000	usd
CY2022Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	700000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	600000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	400000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromCurrentPeriodTaxPositions	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	300000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	300000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Foreign Currency Translation UnrecognizedTaxBenefitsDecreasesResultingFromForeignCurrencyTranslation	100000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Foreign Currency Translation UnrecognizedTaxBenefitsDecreasesResultingFromForeignCurrencyTranslation	0	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4700000	usd
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4800000	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	700000	usd
CY2021Q3	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	600000	usd
CY2022Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	10500000	usd
CY2021Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	12700000	usd
CY2022Q3	mwa	Deferred Tax Assets Leasing Liabilities DeferredTaxAssetsLeasingLiabilities	8100000	usd
CY2021Q3	mwa	Deferred Tax Assets Leasing Liabilities DeferredTaxAssetsLeasingLiabilities	8200000	usd
CY2022Q3	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	7000000.0	usd
CY2021Q3	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	6100000	usd
CY2022Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	2100000	usd
CY2021Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	2800000	usd
CY2022Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	12900000	usd
CY2021Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	14800000	usd
CY2022Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	4100000	usd
CY2021Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	3800000	usd
CY2022Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	100000	usd
CY2021Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	0	usd
CY2022Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2300000	usd
CY2021Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	2900000	usd
CY2022Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	47100000	usd
CY2021Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	51300000	usd
CY2022Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	13200000	usd
CY2021Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	13600000	usd
CY2022Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	33900000	usd
CY2021Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	37700000	usd
CY2022Q3	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	77700000	usd
CY2021Q3	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	86300000	usd
CY2022Q3	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	7400000	usd
CY2021Q3	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	7600000	usd
CY2022Q3	us-gaap	Deferred Tax Liabilities Other Finite Lived Assets DeferredTaxLiabilitiesOtherFiniteLivedAssets	6200000	usd
CY2021Q3	us-gaap	Deferred Tax Liabilities Other Finite Lived Assets DeferredTaxLiabilitiesOtherFiniteLivedAssets	6800000	usd
CY2022Q3	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	0	usd
CY2021Q3	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	3900000	usd
CY2022Q3	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	28400000	usd
CY2021Q3	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	27400000	usd
CY2022Q3	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	500000	usd
CY2021Q3	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	500000	usd
CY2022Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	120200000	usd
CY2021Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	132500000	usd
CY2022Q3	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	86300000	usd
CY2021Q3	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	94800000	usd
CY2022Q3	us-gaap	Long Term Debt LongTermDebt	451600000	usd
CY2021Q3	us-gaap	Long Term Debt LongTermDebt	452200000	usd
CY2022Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	800000	usd
CY2021Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	1000000.0	usd
CY2022Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	446100000	usd
CY2021Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	445900000	usd
CY2022Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	800000	usd
CY2022Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	500000	usd
CY2022Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	300000	usd
CY2022Q3	mwa	Outstanding Letter Of Credit OutstandingLetterOfCredit	14100000	usd
CY2022Q3	mwa	Outstanding Letter Of Credit Accrued Fees And Expenses OutstandingLetterOfCreditAccruedFeesAndExpenses	200000	usd
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-16700000	usd
CY2022	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	12400000	usd
CY2022	us-gaap	Write Off Of Deferred Debt Issuance Cost WriteOffOfDeferredDebtIssuanceCost	4300000	usd
CY2022Q3	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0579
CY2021Q3	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0301
CY2020Q3	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0284
CY2022	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0301
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0284
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.0326
CY2022	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0450
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0450
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0500
CY2022	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1300000	usd
CY2021	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1500000	usd
CY2020	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1500000	usd
CY2022	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	9800000	usd
CY2021	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	9900000	usd
CY2020	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	11200000	usd
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod	P10Y
CY2022	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	15400000	usd
CY2021	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	15700000	usd
CY2020	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	16900000	usd
CY2022	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-1700000	usd
CY2021	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-2500000	usd
CY2020	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-2800000	usd
CY2022	us-gaap	Defined Benefit Plan Other Costs DefinedBenefitPlanOtherCosts	0	usd
CY2021	us-gaap	Defined Benefit Plan Other Costs DefinedBenefitPlanOtherCosts	0	usd
CY2020	us-gaap	Defined Benefit Plan Other Costs DefinedBenefitPlanOtherCosts	-100000	usd
CY2022	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-3900000	usd
CY2021	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-3300000	usd
CY2020	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-3000000.0	usd
CY2022	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-2600000	usd
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-1800000	usd
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	-1500000	usd
CY2022Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	21900000	usd
CY2022Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	100700000	usd
CY2022Q3	us-gaap	Defined Benefit Plan Plan Assets Target Allocation Percentage DefinedBenefitPlanPlanAssetsTargetAllocationPercentage	1
CY2022Q3	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2021Q3	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2020Q3	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2022Q3	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	251800000	usd
CY2021Q3	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	353500000	usd
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	151399	shares
CY2022	mwa	Share Based Compensation Expected Forfeiture Rate ShareBasedCompensationExpectedForfeitureRate	0.02
CY2022Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	23300000	usd
CY2022Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	23100000	usd
CY2022Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	22800000	usd
CY2022Q3	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	22400000	usd
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	5300000	usd
CY2019Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	157462140	shares
CY2020	us-gaap	Restricted Stock Shares Issued Net Of Shares For Tax Withholdings RestrictedStockSharesIssuedNetOfSharesForTaxWithholdings	242112	shares
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	534291	shares
CY2020	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	182971	shares
CY2020	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	418374	shares
CY2020Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	158064750	shares
CY2021	us-gaap	Restricted Stock Shares Issued Net Of Shares For Tax Withholdings RestrictedStockSharesIssuedNetOfSharesForTaxWithholdings	182024	shares
CY2021	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	146135	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Shares Issued In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod	62396	shares
CY2021	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	651271	shares
CY2021Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	157955433	shares
CY2022	us-gaap	Restricted Stock Shares Issued Net Of Shares For Tax Withholdings RestrictedStockSharesIssuedNetOfSharesForTaxWithholdings	195156	shares
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	36731	shares
CY2022	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	150909	shares
CY2022	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	2654254	shares
CY2022Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	155844138	shares
CY2022Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20	shares
CY2022Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9900000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11000000.0	usd
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7200000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	7600000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	8200000	usd
CY2020	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	5500000	usd
CY2022	mwa	Share Based Compensation Increase Decrease In Earnings Per Share Basic ShareBasedCompensationIncreaseDecreaseInEarningsPerShareBasic	0.05
CY2021	mwa	Share Based Compensation Increase Decrease In Earnings Per Share Basic ShareBasedCompensationIncreaseDecreaseInEarningsPerShareBasic	0.05
CY2020	mwa	Share Based Compensation Increase Decrease In Earnings Per Share Basic ShareBasedCompensationIncreaseDecreaseInEarningsPerShareBasic	0.03
CY2022	mwa	Share Based Compensation Increase Decrease In Earnings Per Share Diluted ShareBasedCompensationIncreaseDecreaseInEarningsPerShareDiluted	0.05
CY2021	mwa	Share Based Compensation Increase Decrease In Earnings Per Share Diluted ShareBasedCompensationIncreaseDecreaseInEarningsPerShareDiluted	0.05
CY2020	mwa	Share Based Compensation Increase Decrease In Earnings Per Share Diluted ShareBasedCompensationIncreaseDecreaseInEarningsPerShareDiluted	0.03
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	790759	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	578005	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	267298	shares
CY2022Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	7600000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y6M
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	20500000	shares
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	5083831	shares
CY2019Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	862390	shares
CY2019Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	4.89
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y
CY2019Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	5500000	usd
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	534291	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	4.15
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	3300000	usd
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	0	shares
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	0
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	328099	shares
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	6.11
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y3M18D
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	1400000	usd
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	151399	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	4.09
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1700000	usd
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	8421	shares
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	0
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	599799	shares
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	10.67
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y9M18D
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2700000	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	457482	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	13.64
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	36731	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	5.67
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	200000	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	7257	shares
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	0
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1013293	shares
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	12.19
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y8M12D
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	300000	usd
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	278569	shares
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	10.12
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y9M18D
CY2022Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	300000	usd
CY2022Q3	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	1013293	shares
CY2022Q3	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	12.19
CY2022	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P7Y8M12D
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	278569	shares
CY2022Q3	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	10.12
CY2022Q3	us-gaap	Inventory Raw Materials And Purchased Parts Net Of Reserves InventoryRawMaterialsAndPurchasedPartsNetOfReserves	181800000	usd
CY2021Q3	us-gaap	Inventory Raw Materials And Purchased Parts Net Of Reserves InventoryRawMaterialsAndPurchasedPartsNetOfReserves	106600000	usd
CY2022Q3	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	56800000	usd
CY2021Q3	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	33500000	usd
CY2022Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	40100000	usd
CY2021Q3	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	44600000	usd
CY2022Q3	us-gaap	Inventory Net InventoryNet	278700000	usd
CY2021Q3	us-gaap	Inventory Net InventoryNet	184700000	usd
CY2022Q3	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	14600000	usd
CY2021Q3	us-gaap	Prepaid Expense Current And Noncurrent PrepaidExpenseCurrentAndNoncurrent	12800000	usd
CY2022Q3	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	1600000	usd
CY2021Q3	us-gaap	Nontrade Receivables Current NontradeReceivablesCurrent	10700000	usd
CY2022Q3	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	800000	usd
CY2021Q3	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	200000	usd
CY2022Q3	us-gaap	Materials Supplies And Other MaterialsSuppliesAndOther	2800000	usd
CY2021Q3	us-gaap	Materials Supplies And Other MaterialsSuppliesAndOther	2900000	usd
CY2022Q3	us-gaap	Other Receivables OtherReceivables	2600000	usd
CY2021Q3	us-gaap	Other Receivables OtherReceivables	800000	usd
CY2022Q3	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	4400000	usd
CY2021Q3	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	1900000	usd
CY2022Q3	us-gaap	Other Assets Current OtherAssetsCurrent	26800000	usd
CY2021Q3	us-gaap	Other Assets Current OtherAssetsCurrent	29300000	usd
CY2022Q3	us-gaap	Land Land	5700000	usd
CY2021Q3	us-gaap	Land Land	6100000	usd
CY2022Q3	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	87600000	usd
CY2021Q3	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	84600000	usd
CY2022Q3	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	456000000.0	usd
CY2021Q3	us-gaap	Machinery And Equipment Gross MachineryAndEquipmentGross	433300000	usd
CY2022Q3	us-gaap	Construction In Progress Gross ConstructionInProgressGross	104700000	usd
CY2021Q3	us-gaap	Construction In Progress Gross ConstructionInProgressGross	83700000	usd
CY2022Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	654000000.0	usd
CY2021Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	607700000	usd
CY2022Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	352400000	usd
CY2021Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	324300000	usd
CY2022Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	301600000	usd
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	283400000	usd
CY2022Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	26000000.0	usd
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	27100000	usd
CY2022Q3	mwa	Maintenance Repair And Tooling Supplies MaintenanceRepairAndToolingSupplies	20400000	usd
CY2021Q3	mwa	Maintenance Repair And Tooling Supplies MaintenanceRepairAndToolingSupplies	19300000	usd
CY2022Q3	us-gaap	Nontrade Receivables Noncurrent NontradeReceivablesNoncurrent	3600000	usd
CY2021Q3	us-gaap	Nontrade Receivables Noncurrent NontradeReceivablesNoncurrent	2700000	usd
CY2022Q3	us-gaap	Notes Receivable Related Parties Noncurrent NotesReceivableRelatedPartiesNoncurrent	1700000	usd
CY2021Q3	us-gaap	Notes Receivable Related Parties Noncurrent NotesReceivableRelatedPartiesNoncurrent	1800000	usd
CY2022Q3	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	600000	usd
CY2021Q3	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	16800000	usd
CY2022Q3	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	1000000.0	usd
CY2021Q3	us-gaap	Deferred Finance Costs Noncurrent Net DeferredFinanceCostsNoncurrentNet	1300000	usd
CY2022Q3	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	3400000	usd
CY2021Q3	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	4300000	usd
CY2022Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	56700000	usd
CY2021Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	73300000	usd
CY2022Q3	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	40200000	usd
CY2021Q3	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	44600000	usd
CY2022Q3	mwa	Accrued Rebates AccruedRebates	16200000	usd
CY2021Q3	mwa	Accrued Rebates AccruedRebates	19600000	usd
CY2022Q3	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	5300000	usd
CY2021Q3	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	6200000	usd
CY2022Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	6500000	usd
CY2021Q3	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	6700000	usd
CY2022Q3	us-gaap	Deferred Revenue DeferredRevenue	8100000	usd
CY2021Q3	us-gaap	Deferred Revenue DeferredRevenue	5400000	usd
CY2022Q3	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	4200000	usd
CY2021Q3	us-gaap	Customer Refund Liability Current CustomerRefundLiabilityCurrent	6000000.0	usd
CY2022Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4400000	usd
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	4000000.0	usd
CY2022Q3	us-gaap	Accrual For Taxes Other Than Income Taxes Current And Noncurrent AccrualForTaxesOtherThanIncomeTaxesCurrentAndNoncurrent	4400000	usd
CY2021Q3	us-gaap	Accrual For Taxes Other Than Income Taxes Current And Noncurrent AccrualForTaxesOtherThanIncomeTaxesCurrentAndNoncurrent	4400000	usd
CY2022Q3	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	3300000	usd
CY2021Q3	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	3100000	usd
CY2022Q3	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	700000	usd
CY2021Q3	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	1200000	usd
CY2022Q3	us-gaap	Accrued Income Taxes AccruedIncomeTaxes	7500000	usd
CY2021Q3	us-gaap	Accrued Income Taxes AccruedIncomeTaxes	8500000	usd
CY2022Q3	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	4600000	usd
CY2021Q3	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	2600000	usd
CY2022Q3	mwa	Cares Act Payroll Tax Liabilities Current CARESActPayrollTaxLiabilitiesCurrent	4400000	usd
CY2021Q3	mwa	Cares Act Payroll Tax Liabilities Current CARESActPayrollTaxLiabilitiesCurrent	3600000	usd
CY2022Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	7600000	usd
CY2021Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	11200000	usd
CY2022Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	117400000	usd
CY2021Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	127100000	usd
CY2022Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	22400000	usd
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	24600000	usd
CY2022Q3	us-gaap	Standard Product Warranty Accrual Noncurrent StandardProductWarrantyAccrualNoncurrent	4200000	usd
CY2021Q3	us-gaap	Standard Product Warranty Accrual Noncurrent StandardProductWarrantyAccrualNoncurrent	3000000.0	usd
CY2022Q3	mwa	Transition Tax Liability TransitionTaxLiability	4100000	usd
CY2021Q3	mwa	Transition Tax Liability TransitionTaxLiability	4700000	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4700000	usd
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	4800000	usd
CY2022Q3	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	6500000	usd
CY2021Q3	us-gaap	Workers Compensation Liability Noncurrent WorkersCompensationLiabilityNoncurrent	7900000	usd
CY2022Q3	mwa	Nmtc Liability NMTCLiability	3900000	usd
CY2021Q3	mwa	Nmtc Liability NMTCLiability	3900000	usd
CY2022Q3	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	3600000	usd
CY2021Q3	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	3600000	usd
CY2022Q3	mwa	Cares Act Payroll Tax Liabilities Noncurrent CARESActPayrollTaxLiabilitiesNoncurrent	0	usd
CY2021Q3	mwa	Cares Act Payroll Tax Liabilities Noncurrent CARESActPayrollTaxLiabilitiesNoncurrent	3600000	usd
CY2022Q3	mwa	Grant Yet To Be Earned GrantYetToBeEarned	2500000	usd
CY2021Q3	mwa	Grant Yet To Be Earned GrantYetToBeEarned	2500000	usd
CY2022Q3	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	3500000	usd
CY2021Q3	us-gaap	Other Accrued Liabilities Noncurrent OtherAccruedLiabilitiesNoncurrent	3400000	usd
CY2022Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	55400000	usd
CY2021Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	62000000.0	usd
CY2022Q3	mwa	Cares Act Payroll Tax Liabilities Current CARESActPayrollTaxLiabilitiesCurrent	4400000	usd
CY2021Q3	mwa	Cares Act Total Fy21 CaresActTotalFY21	7200000	usd
CY2022	us-gaap	Restructuring Costs RestructuringCosts	1500000	usd
CY2021	us-gaap	Restructuring Costs RestructuringCosts	5600000	usd
CY2021	us-gaap	Restructuring Costs RestructuringCosts	5600000	usd
CY2022	us-gaap	Severance Costs1 SeveranceCosts1	3200000	usd
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	17100000	usd
CY2020	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	15000000.0	usd
CY2021Q3	us-gaap	Restructuring Reserve RestructuringReserve	3100000	usd
CY2020Q3	us-gaap	Restructuring Reserve RestructuringReserve	2800000	usd
CY2019Q3	us-gaap	Restructuring Reserve RestructuringReserve	1700000	usd
CY2022	us-gaap	Restructuring Charges RestructuringCharges	7200000	usd
CY2021	us-gaap	Restructuring Charges RestructuringCharges	5400000	usd
CY2020	us-gaap	Restructuring Charges RestructuringCharges	4800000	usd
CY2022	us-gaap	Payments For Restructuring PaymentsForRestructuring	7000000.0	usd
CY2021	us-gaap	Payments For Restructuring PaymentsForRestructuring	5100000	usd
CY2020	us-gaap	Payments For Restructuring PaymentsForRestructuring	3700000	usd
CY2022Q3	us-gaap	Restructuring Reserve RestructuringReserve	3300000	usd
CY2021Q3	us-gaap	Restructuring Reserve RestructuringReserve	3100000	usd
CY2020Q3	us-gaap	Restructuring Reserve RestructuringReserve	2800000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	24500000	usd
CY2022	us-gaap	Advertising Expense AdvertisingExpense	5500000	usd
CY2021	us-gaap	Advertising Expense AdvertisingExpense	3200000	usd
CY2020	us-gaap	Advertising Expense AdvertisingExpense	3300000	usd
CY2022	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1000000.0	usd
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1100000	usd
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1200000	usd
CY2022	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2600000	usd
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2300000	usd
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	300000	usd
CY2022	us-gaap	Interest Expense Other InterestExpenseOther	300000	usd
CY2021	us-gaap	Interest Expense Other InterestExpenseOther	300000	usd
CY2020	us-gaap	Interest Expense Other InterestExpenseOther	300000	usd
CY2022	us-gaap	Interest Expense InterestExpense	17600000	usd
CY2021	us-gaap	Interest Expense InterestExpense	23800000	usd
CY2020	us-gaap	Interest Expense InterestExpense	26600000	usd
CY2022	us-gaap	Interest Income Other InterestIncomeOther	700000	usd
CY2021	us-gaap	Interest Income Other InterestIncomeOther	400000	usd
CY2020	us-gaap	Interest Income Other InterestIncomeOther	1100000	usd
CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-16900000	usd
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-23400000	usd
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	-25500000	usd
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	57800000	usd
CY2022	us-gaap	Other General Expense OtherGeneralExpense	7200000	usd
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	17200000	usd
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	22200000	usd
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-5000000.0	usd
CY2022	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossBeforeReclassificationAndTax	-25500000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax	-14100000	usd
CY2022	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-39600000	usd
CY2022Q3	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-8300000	usd
CY2022Q3	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	36300000	usd
CY2022Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-44600000	usd
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	business_segments
CY2021	us-gaap	Other General Expense OtherGeneralExpense	8000000.0	usd
CY2020	us-gaap	Other General Expense OtherGeneralExpense	13000000.0	usd
CY2022Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	301600000	usd
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	283400000	usd
CY2022	us-gaap	Revenues Revenues	1247400000	usd
CY2021	us-gaap	Revenues Revenues	1111000000	usd
CY2020	us-gaap	Revenues Revenues	964100000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	111600000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	131700000	usd
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	116800000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	60500000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	59600000	usd
CY2022	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	54700000	usd
CY2021	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	62700000	usd
CY2020	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	67700000	usd
CY2022Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	459800000	usd
CY2021Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	507600000	usd
CY2022Q3	us-gaap	Inventory Net InventoryNet	278700000	usd
CY2021Q3	us-gaap	Inventory Net InventoryNet	184700000	usd
CY2021	us-gaap	Loss Contingency Damages Sought Value LossContingencyDamagesSoughtValue	10000000	cad

Files In Submission

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0001350593-22-000061-index.html	Edgar Link	pending
0001350593-22-000061.txt	Edgar Link	pending
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exhibit211subsidiarieslist.htm	Edgar Link	pending
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exhibit312cfo302certificat.htm	Edgar Link	pending
exhibit321ceo906certificat.htm	Edgar Link	pending
exhibit322cfo906certificat.htm	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable

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$MWA
Mueller Water Products, Inc. Stock $mwa

2022 Q4 Form 10-K Financial Statement

#000135059322000061 Filed on November 18, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MWA Mueller Water Products, Inc. Stock $mwa

2022 Q4 Form 10-K Financial Statement

#000135059322000061 Filed on November 18, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MWA
Mueller Water Products, Inc. Stock $mwa