$WST
WEST PHARMACEUTICAL SERVICES INC Stock $wst

$wst Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000010577023000012 Filed on February 21, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$716.6M	$708.7M	$2.887B
YoY Change	-0.47%	-3.02%	1.95%
Cost Of Revenue	$445.3M	$446.6M	$1.751B
YoY Change	2.27%	4.27%	5.73%
Gross Profit	$271.3M	$262.1M	$1.136B
YoY Change	-4.67%	-13.36%	-3.37%
Gross Profit Margin	37.86%	36.98%	39.36%
Selling, General & Admin	$86.00M	$85.70M	$316.9M
YoY Change	3.12%	-11.74%	-12.65%
% of Gross Profit	31.7%	32.7%	27.89%
Research & Development	$17.10M	$15.90M	$58.50M
YoY Change	17.12%	16.06%	10.8%
% of Gross Profit	6.3%	6.07%	5.15%
Depreciation & Amortization	$30.70M	$31.10M	$120.6M
YoY Change	6.97%	-9.59%	-1.39%
% of Gross Profit	11.32%	11.87%	10.61%
Operating Expenses	$103.1M	$106.8M	$375.4M
YoY Change	5.2%	-6.48%	-9.67%
Operating Profit	$155.3M	$155.3M	$734.0M
YoY Change	-18.13%	-17.53%	-2.43%
Interest Expense	$2.200M	$2.200M	$7.900M
YoY Change	0.0%	-164.71%	-3.66%
% of Operating Profit	1.42%	1.42%	1.08%
Other Income/Expense, Net	$2.600M	-$800.0K	-$54.10M
YoY Change	-236.84%	-157.14%	1491.18%
Pretax Income	$157.9M	$128.7M	$394.4M
YoY Change	-15.92%	-29.25%	-6.1%
Income Tax	$23.60M	$31.40M	$114.7M
% Of Pretax Income	14.95%	24.4%	29.08%
Net Earnings	$140.0M	$103.0M	$585.9M
YoY Change	-19.45%	-30.26%	-11.47%
Net Earnings / Revenue	19.54%	14.53%	20.3%
Basic Earnings Per Share	$1.88		$7.87
Diluted Earnings Per Share	$1.85	$1.36	$7.73
COMMON SHARES
Basic Shares Outstanding	74.14M shares	74.03M shares	74.40M shares
Diluted Shares Outstanding	75.70M shares		75.80M shares

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$886.3M	$894.3M	$894.3M
YoY Change	32.74%	17.27%	17.27%
Cash & Equivalents	$886.3M	$894.3M	$894.3M
Short-Term Investments
Other Short-Term Assets	$90.50M	$103.0M	$103.0M
YoY Change	-15.89%	-8.04%	-8.04%
Inventory	$447.0M	$414.8M	$414.8M
Prepaid Expenses
Receivables	$513.4M	$507.4M	$507.4M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.937B	$1.920B	$1.920B
YoY Change	14.59%	10.19%	10.19%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.215B	$1.158B	$1.263B
YoY Change	14.01%	9.53%	12.06%
Goodwill	$107.8M	$107.3M
YoY Change	-0.92%	-2.37%
Intangibles	$17.80M	$18.40M
YoY Change	-18.35%	-20.0%
Long-Term Investments	$200.9M	$197.0M	$204.9M
YoY Change	1.46%	-2.09%	-1.35%
Other Assets	$36.70M	$38.10M	$104.0M
YoY Change	-9.38%	-2.81%	-0.38%
Total Long-Term Assets	$1.786B	$1.697B	$1.697B
YoY Change	11.36%	7.98%	7.98%
TOTAL ASSETS
Total Short-Term Assets	$1.937B	$1.920B	$1.920B
Total Long-Term Assets	$1.786B	$1.697B	$1.697B
Total Assets	$3.724B	$3.617B	$3.617B
YoY Change	13.02%	9.14%	9.14%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$233.8M	$215.4M	$215.4M
YoY Change	-5.8%	-7.24%	-7.24%
Accrued Expenses	$81.90M	$94.90M	$159.2M
YoY Change	-8.7%	-25.86%	-18.53%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$2.200M	$2.200M	$2.200M
YoY Change	-95.02%	-95.02%	-95.02%
Total Short-Term Liabilities	$534.9M	$519.0M	$519.0M
YoY Change	-8.53%	-12.64%	-12.64%
LONG-TERM LIABILITIES
Long-Term Debt	$206.1M	$206.7M	$206.7M
YoY Change	-1.06%	-1.01%	-1.01%
Other Long-Term Liabilities	$55.80M	$51.60M	$191.9M
YoY Change	46.07%	35.08%	12.49%
Total Long-Term Liabilities	$261.9M	$258.3M	$398.6M
YoY Change	6.25%	4.57%	5.06%
TOTAL LIABILITIES
Total Short-Term Liabilities	$534.9M	$519.0M	$519.0M
Total Long-Term Liabilities	$261.9M	$258.3M	$398.6M
Total Liabilities	$947.4M	$931.9M	$931.9M
YoY Change	-2.18%	-4.75%	-4.75%
SHAREHOLDERS EQUITY
Retained Earnings	$3.114B	$2.988B
YoY Change	18.96%	21.62%
Common Stock	$18.80M	$18.80M
YoY Change	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$370.9M
YoY Change		61.61%
Treasury Stock Shares
Shareholders Equity	$2.776B	$2.685B	$2.685B
YoY Change
Total Liabilities & Shareholders Equity	$3.724B	$3.617B	$3.617B
YoY Change	13.02%	9.14%	9.14%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$140.0M	$103.0M	$585.9M
YoY Change	-19.45%	-30.26%	-11.47%
Depreciation, Depletion And Amortization	$30.70M	$31.10M	$120.6M
YoY Change	6.97%	-9.59%	-1.39%
Cash From Operating Activities	$138.1M	$230.8M	$724.0M
YoY Change	-8.66%	43.53%	23.97%
INVESTING ACTIVITIES
Capital Expenditures	$82.10M	$94.90M	$284.6M
YoY Change	24.77%	-224.05%	12.31%
Acquisitions
YoY Change
Other Investing Activities	$0.00	$100.0K	$3.600M
YoY Change	-100.0%	-111.11%	-244.0%
Cash From Investing Activities	-$82.10M	-$94.80M	-$288.2M
YoY Change	20.2%	22.48%	13.87%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$202.8M
YoY Change			47.92%
Debt Paid & Issued, Net			$1.200M
YoY Change
Cash From Financing Activities	-$71.00M	-9.500M	-$293.6M
YoY Change	-58.89%	53.23%	74.66%
NET CHANGE
Cash From Operating Activities	$138.1M	230.8M	$724.0M
Cash From Investing Activities	-$82.10M	-94.80M	-$288.2M
Cash From Financing Activities	-$71.00M	-9.500M	-$293.6M
Net Change In Cash	-$8.000M	126.5M	$131.7M
YoY Change	-91.57%	63.86%	-10.47%
FREE CASH FLOW
Cash From Operating Activities	$138.1M	$230.8M	$724.0M
Capital Expenditures	$82.10M	$94.90M	$284.6M
Free Cash Flow	$56.00M	$135.9M	$439.4M
YoY Change	-34.43%	-42.73%	32.91%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0000105770
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2019	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	http://fasb.org/us-gaap/2022#AccountingStandardsUpdate201613Member
CY2022	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Excluding Service Cost Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditExcludingServiceCostStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpense
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Excluding Service Cost Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditExcludingServiceCostStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpense
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost Credit Excluding Service Cost Statement Of Income Or Comprehensive Income Extensible List DefinedBenefitPlanNetPeriodicBenefitCostCreditExcludingServiceCostStatementOfIncomeOrComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherNonoperatingIncomeExpense
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	1-8036
CY2022	dei	Entity Registrant Name EntityRegistrantName	WEST PHARMACEUTICAL SERVICES, INC.
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	PA
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	23-1210010
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	530 Herman O. West Drive
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Exton
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	PA
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	19341-0645
CY2022	dei	City Area Code CityAreaCode	610
CY2022	dei	Local Phone Number LocalPhoneNumber	594-2900
CY2022	dei	Security12b Title Security12bTitle	Common Stock, par value $.25 per share
CY2022	dei	Trading Symbol TradingSymbol	WST
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
CY2022Q2	dei	Entity Public Float EntityPublicFloat	22300000000	usd
CY2023Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	74135554	shares
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2886900000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2831600000	usd
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2146900000	usd
CY2022	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1750700000	usd
CY2021	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1655800000	usd
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CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	58500000	usd
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CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	316900000	usd
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	362800000	usd
CY2020	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	302000000.0	usd
CY2022	wst	Other Income Expense OtherIncomeExpense	-26800000	usd
CY2021	wst	Other Income Expense OtherIncomeExpense	-7900000	usd
CY2020	wst	Other Income Expense OtherIncomeExpense	-12000000.0	usd
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CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	74400000	shares
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CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	76300000	shares
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CY2021	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	-200000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Amortization Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Prior Service Cost Credit Net Of Tax OtherComprehensiveIncomeLossAmortizationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetPriorServiceCostCreditNetOfTax	-500000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationTax	100000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationTax	0.0	usd
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationTax	0.0	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationNetOfTax	-300000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationNetOfTax	0	usd
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Transition Asset Obligation Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetTransitionAssetObligationNetOfTax	0	usd
CY2022	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0.0	usd
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0.0	usd
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax	0.0	usd
CY2022	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	100000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	900000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	200000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	200000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	500000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	-600000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	1400000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	700000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-1100000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-23400000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-49000000.0	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	39000000.0	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	562500000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	612800000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	385200000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	894300000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	762600000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	507400000	usd
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	489000000.0	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	414800000	usd
CY2021Q4	us-gaap	Inventory Net InventoryNet	378400000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	103000000.0	usd
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	112000000.0	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	1919500000	usd
CY2021Q4	us-gaap	Assets Current AssetsCurrent	1742000000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2386600000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2215000000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1228300000	usd
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1157500000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1158300000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1057500000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	104400000	usd
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	69300000	usd
CY2022Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	204900000	usd
CY2021Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	207700000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	107300000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	109900000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	18400000	usd
CY2021Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	23000000.0	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	65600000	usd
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	48500000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	300000	usd
CY2021Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	16700000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	38100000	usd
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	39200000	usd
CY2022Q4	us-gaap	Assets Assets	3616800000	usd
CY2021Q4	us-gaap	Assets Assets	3313800000	usd
CY2022Q4	wst	Notes Payable And Other Debt Current NotesPayableAndOtherDebtCurrent	2200000	usd
CY2021Q4	wst	Notes Payable And Other Debt Current NotesPayableAndOtherDebtCurrent	44200000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	215400000	usd
CY2021Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	232200000	usd
CY2022Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	2100000	usd
CY2021Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	2400000	usd
CY2022Q4	wst	Accrued Salaries Wages And Benefits Current AccruedSalariesWagesAndBenefitsCurrent	76800000	usd
CY2021Q4	wst	Accrued Salaries Wages And Benefits Current AccruedSalariesWagesAndBenefitsCurrent	116300000	usd
CY2022Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	24800000	usd
CY2021Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	26300000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	16000000.0	usd
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	9300000	usd
CY2022Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	181700000	usd
CY2021Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	163400000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	519000000.0	usd
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	594100000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	206700000	usd
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	208800000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	14300000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	4900000	usd
CY2022Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	28200000	usd
CY2021Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	40500000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	93000000.0	usd
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	63000000.0	usd
CY2022Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	19100000	usd
CY2021Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	28900000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	51600000	usd
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	38200000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	931900000	usd
CY2021Q4	us-gaap	Liabilities Liabilities	978400000	usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	3000000.0	shares
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	3000000.0	shares
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0.0	shares
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0.0	shares
CY2022Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0.0	shares
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0.0	shares
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2021Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.25
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.25
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	75300000	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	75300000	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	74100000	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	74200000	shares
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	18800000	usd
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	18800000	usd
CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	232200000	usd
CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	249000000.0	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2987800000	usd
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2456700000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-183000000.0	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-159600000	usd
CY2022Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	1200000	shares
CY2021Q4	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	1100000	shares
CY2022Q4	us-gaap	Treasury Stock Value TreasuryStockValue	370900000	usd
CY2021Q4	us-gaap	Treasury Stock Value TreasuryStockValue	229500000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	2684900000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	2335400000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	3616800000	usd
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	3313800000	usd
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1573200000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	346200000	usd
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	60500000	usd
CY2020	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	115500000	usd
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.66
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	48800000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	39000000.0	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1854500000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	661800000	usd
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	57000000.0	usd
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	137100000	usd
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.70
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	51800000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-49000000.0	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	2335400000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	585900000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	44600000	usd
CY2022	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	202800000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.74
CY2022	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	54800000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-23400000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	2684900000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	585900000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	661800000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	346200000	usd
CY2022	us-gaap	Depreciation Depreciation	116900000	usd
CY2021	us-gaap	Depreciation Depreciation	116900000	usd
CY2020	us-gaap	Depreciation Depreciation	104700000	usd
CY2022	us-gaap	Adjustment For Amortization AdjustmentForAmortization	3700000	usd
CY2021	us-gaap	Adjustment For Amortization AdjustmentForAmortization	5400000	usd
CY2020	us-gaap	Adjustment For Amortization AdjustmentForAmortization	4400000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	23700000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	37500000	usd
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	34000000.0	usd
CY2022	us-gaap	Restructuring Reserve Settled Without Cash2 RestructuringReserveSettledWithoutCash2	15300000	usd
CY2021	us-gaap	Restructuring Reserve Settled Without Cash2 RestructuringReserveSettledWithoutCash2	0	usd
CY2020	us-gaap	Restructuring Reserve Settled Without Cash2 RestructuringReserveSettledWithoutCash2	0	usd
CY2022	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Curtailments DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments	-52200000	usd
CY2021	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Curtailments DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments	-1800000	usd
CY2020	us-gaap	Defined Benefit Plan Recognized Net Gain Loss Due To Curtailments DefinedBenefitPlanRecognizedNetGainLossDueToCurtailments	-3700000	usd
CY2022	us-gaap	Payment For Contingent Consideration Liability Operating Activities PaymentForContingentConsiderationLiabilityOperatingActivities	2000000.0	usd
CY2021	us-gaap	Payment For Contingent Consideration Liability Operating Activities PaymentForContingentConsiderationLiabilityOperatingActivities	1400000	usd
CY2020	us-gaap	Payment For Contingent Consideration Liability Operating Activities PaymentForContingentConsiderationLiabilityOperatingActivities	900000	usd
CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-2700000	usd
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-1300000	usd
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-7700000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-30800000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-42900000	usd
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5800000	usd
CY2022	wst	Pension And Other Postretirement Benefit Expense Net PensionAndOtherPostretirementBenefitExpenseNet	-14000000.0	usd
CY2021	wst	Pension And Other Postretirement Benefit Expense Net PensionAndOtherPostretirementBenefitExpenseNet	14800000	usd
CY2020	wst	Pension And Other Postretirement Benefit Expense Net PensionAndOtherPostretirementBenefitExpenseNet	4600000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	18100000	usd
CY2021	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	17400000	usd
CY2020	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	15800000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	35600000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	123500000	usd
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	46600000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	49800000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	86500000	usd
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	73700000	usd
CY2022	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-18500000	usd
CY2021	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	7300000	usd
CY2020	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-5500000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-2800000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	16800000	usd
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	36600000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-58200000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-6700000	usd
CY2020	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-67900000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	724000000.0	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	584000000.0	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	472500000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	284600000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	253400000	usd
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	174400000	usd
CY2022	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	usd
CY2021	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	2200000	usd
CY2020	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	3600000	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-2500000	usd
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	5100000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-288200000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-253100000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-179500000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1200000	usd
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	usd
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	usd
CY2022	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	44300000	usd
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2200000	usd
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2300000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	54100000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	51100000	usd
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	48100000	usd
CY2022	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	20900000	usd
CY2021	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	29400000	usd
CY2020	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	28300000	usd
CY2022	us-gaap	Proceeds From Other Equity ProceedsFromOtherEquity	7300000	usd
CY2021	us-gaap	Proceeds From Other Equity ProceedsFromOtherEquity	7700000	usd
CY2020	us-gaap	Proceeds From Other Equity ProceedsFromOtherEquity	6400000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	202800000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	137100000	usd
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	115500000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	19400000	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	14800000	usd
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	5900000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-293600000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-168100000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-137100000	usd
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-10500000	usd
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-15700000	usd
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	20500000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	131700000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	147100000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	176400000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	762600000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	615500000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	439100000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	894300000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	762600000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	615500000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	6600000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	8000000.0	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	8100000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	109700000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	171800000	usd
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	48400000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	33200000	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	41100000	usd
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	31300000	usd
CY2022Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	14100000	usd
CY2021Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	13400000	usd
CY2020Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	12600000	usd
CY2022	us-gaap	Use Of Estimates UseOfEstimates	<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Use of Estimates:</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> The financial statements are prepared in conformity with U.S. GAAP. These principles require management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingencies in the financial statements. Actual amounts realized may differ from these estimates.</span>
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	200000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	400000	usd
CY2022Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	170700000	usd
CY2021Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	153800000	usd
CY2022Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	79000000.0	usd
CY2021Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	63500000	usd
CY2022Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	165100000	usd
CY2021Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	161100000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	414800000	usd
CY2021Q4	us-gaap	Inventory Net InventoryNet	378400000	usd
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	0	usd
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	0	usd
CY2013Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	20000000	usd
CY2022	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	1
CY2021	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	1
CY2020	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	1
CY2022	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	1
CY2021	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	1
CY2020	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	1
CY2022	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	1
CY2021	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	1
CY2020	us-gaap	Concentration Risk Percentage1 ConcentrationRiskPercentage1	1
CY2021Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	14600000	usd
CY2022Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	16300000	usd
CY2022	wst	Contract With Customer Asset Increase Decrease ContractWithCustomerAssetIncreaseDecrease	1700000	usd
CY2021Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	61300000	usd
CY2022Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	68200000	usd
CY2022	us-gaap	Contract With Customer Liability Change In Timeframe Performance Obligation Satisfied Revenue Recognized ContractWithCustomerLiabilityChangeInTimeframePerformanceObligationSatisfiedRevenueRecognized	6900000	usd
CY2022	wst	Contract With Customer Liability Increase Decrease Due To Additional Cash Payments ContractWithCustomerLiabilityIncreaseDecreaseDueToAdditionalCashPayments	88300000	usd
CY2022	wst	Contract With Customer Liability Revenue Recognized From Deferred Income ContractWithCustomerLiabilityRevenueRecognizedFromDeferredIncome	54200000	usd
CY2022	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	28000000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	585900000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	661800000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	346200000	usd
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	74400000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	74400000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	73900000	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1400000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1900000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1900000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	75800000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	76300000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	75800000	shares
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	200000	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2021Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	650000	shares
CY2022Q4	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
CY2022	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	563334	shares
CY2022	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	202800000	usd
CY2022	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	360.03
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2386600000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2215000000	usd
CY2022	us-gaap	Depreciation Depreciation	116900000	usd
CY2021	us-gaap	Depreciation Depreciation	116900000	usd
CY2020	us-gaap	Depreciation Depreciation	104700000	usd
CY2022	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	3700000	usd
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2000000	usd
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1400000	usd
CY2022	wst	Lessee Operating Lease Option To Terminate Term LesseeOperatingLeaseOptionToTerminateTerm	P1Y
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	0	usd
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	0	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	15500000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	12700000	usd
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	12800000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1300000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1300000	usd
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	800000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	6800000	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	4800000	usd
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	3800000	usd
CY2021Q4	us-gaap	Retained Earnings Undistributed Earnings From Equity Method Investees RetainedEarningsUndistributedEarningsFromEquityMethodInvestees	115600000	usd
CY2022	us-gaap	Lease Cost LeaseCost	23600000	usd
CY2021	us-gaap	Lease Cost LeaseCost	18800000	usd
CY2020	us-gaap	Lease Cost LeaseCost	17400000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	13300000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	12100000	usd
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	12600000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	47600000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	13300000	usd
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	6100000	usd
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y3M21D
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P10Y8M12D
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0325
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0358
CY2020Q4	us-gaap	Retained Earnings Undistributed Earnings From Equity Method Investees RetainedEarningsUndistributedEarningsFromEquityMethodInvestees	98200000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	19000000.0	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	18100000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	16000000.0	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	13400000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	9400000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	50800000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	126700000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	17700000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	109000000.0	usd
CY2022Q4	us-gaap	Retained Earnings Undistributed Earnings From Equity Method Investees RetainedEarningsUndistributedEarningsFromEquityMethodInvestees	133600000	usd
CY2022	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	2600000	usd
CY2021	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	2700000	usd
CY2020	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	1600000	usd
CY2022	wst	Purchases And Royalty Payments From Equity Method Investees PurchasesAndRoyaltyPaymentsFromEquityMethodInvestees	167600000	usd
CY2021	wst	Purchases And Royalty Payments From Equity Method Investees PurchasesAndRoyaltyPaymentsFromEquityMethodInvestees	155000000	usd
CY2020	wst	Purchases And Royalty Payments From Equity Method Investees PurchasesAndRoyaltyPaymentsFromEquityMethodInvestees	143300000	usd
CY2022Q4	us-gaap	Due To Affiliate Current And Noncurrent DueToAffiliateCurrentAndNoncurrent	31200000	usd
CY2021Q4	us-gaap	Due To Affiliate Current And Noncurrent DueToAffiliateCurrentAndNoncurrent	25500000	usd
CY2022	wst	Sales To Equity Method Investees SalesToEquityMethodInvestees	14200000	usd
CY2021	wst	Sales To Equity Method Investees SalesToEquityMethodInvestees	12000000	usd
CY2020	wst	Sales To Equity Method Investees SalesToEquityMethodInvestees	9700000	usd
CY2022Q4	us-gaap	Due From Affiliates DueFromAffiliates	2200000	usd
CY2021Q4	us-gaap	Due From Affiliates DueFromAffiliates	2300000	usd
CY2022Q4	us-gaap	Equity Method Investments EquityMethodInvestments	197000000	usd
CY2021Q4	us-gaap	Equity Method Investments EquityMethodInvestments	201200000	usd
CY2022Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	7900000	usd
CY2021Q4	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	6500000	usd
CY2020Q4	us-gaap	Goodwill Goodwill	111100000	usd
CY2021	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	1700000	usd
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	100000	usd
CY2021	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-2800000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	109900000	usd
CY2022	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-2600000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	107300000	usd
CY2022Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	100000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	80200000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	61800000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	18400000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	81100000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	58100000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	23000000.0	usd
CY2022	us-gaap	Finite Lived Intangible Assets Foreign Currency Translation Gain Loss FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss	-900000	usd
CY2021	us-gaap	Finite Lived Intangible Assets Foreign Currency Translation Gain Loss FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss	-1300000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3700000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5400000	usd
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4400000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	3600000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	3600000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	3000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	2600000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	2400000	usd
CY2021Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	13000000.0	usd
CY2022Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	5400000	usd
CY2022Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	57300000	usd
CY2021Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	48700000	usd
CY2022Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	14100000	usd
CY2021Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	13400000	usd
CY2022Q4	us-gaap	Accrued Sales Commission Current And Noncurrent AccruedSalesCommissionCurrentAndNoncurrent	32100000	usd
CY2021Q4	us-gaap	Accrued Sales Commission Current And Noncurrent AccruedSalesCommissionCurrentAndNoncurrent	38700000	usd
CY2022Q4	us-gaap	Other Postretirement Benefits Payable Current And Noncurrent OtherPostretirementBenefitsPayableCurrentAndNoncurrent	10600000	usd
CY2021Q4	us-gaap	Other Postretirement Benefits Payable Current And Noncurrent OtherPostretirementBenefitsPayableCurrentAndNoncurrent	8800000	usd
CY2022Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	13700000	usd
CY2021Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	3700000	usd
CY2022Q4	us-gaap	Interest Payable Current InterestPayableCurrent	2500000	usd
CY2021Q4	us-gaap	Interest Payable Current InterestPayableCurrent	3200000	usd
CY2022Q4	us-gaap	Restructuring Reserve RestructuringReserve	11300000	usd
CY2021Q4	us-gaap	Restructuring Reserve RestructuringReserve	4600000	usd
CY2022Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	1300000	usd
CY2021Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	3300000	usd
CY2022Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	33400000	usd
CY2021Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	26000000.0	usd
CY2022Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	181700000	usd
CY2021Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	163400000	usd
CY2022Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	209200000	usd
CY2021Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	253500000	usd
CY2022Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	300000	usd
CY2021Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	500000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	208900000	usd
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	253000000.0	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	2200000	usd
CY2021Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	44200000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	206700000	usd
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	208800000	usd
CY2012Q4	wst	Debt Instrument Number Of Tranches DebtInstrumentNumberOfTranches	3	tranche
CY2022	us-gaap	Interest Expense Debt InterestExpenseDebt	11600000	usd
CY2021	us-gaap	Interest Expense Debt InterestExpenseDebt	10200000	usd
CY2020	us-gaap	Interest Expense Debt InterestExpenseDebt	9600000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	2200000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	134000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	0	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	73000000	usd
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CY2022Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1900000	usd
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CY2022Q4	wst	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	20600000	usd
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CY2022Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	1500000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	1800000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	19700000	usd
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CY2020	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-500000	usd
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Fdii Percent EffectiveIncomeTaxRateReconciliationFdiiPercent	0.015
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Fdii Percent EffectiveIncomeTaxRateReconciliationFdiiPercent	0.011
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.010
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.001
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.012
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CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	174400000	usd
CY2022	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
CY2022	dei	Auditor Location AuditorLocation	Philadelphia, Pennsylvania
CY2022	dei	Auditor Firm AuditorFirmId	238
CY2021Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	12600000	usd
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CY2022	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	500000	usd
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CY2020	us-gaap	Valuation Allowances And Reserves Charged To Cost And Expense ValuationAllowancesAndReservesChargedToCostAndExpense	700000	usd
CY2020	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	900000	usd
CY2020Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	16200000	usd

Files In Submission

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$WST
WEST PHARMACEUTICAL SERVICES INC Stock $wst

2023 Q1 Form 10-K Financial Statement

#000010577023000012 Filed on February 21, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WST WEST PHARMACEUTICAL SERVICES INC Stock $wst

2023 Q1 Form 10-K Financial Statement

#000010577023000012 Filed on February 21, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$WST
WEST PHARMACEUTICAL SERVICES INC Stock $wst