$CWST
CASELLA WASTE SYSTEMS INC Stock $cwst

$cwst Overview Financials Valuation SEC Filings Company Website

2022 Q4 Form 10-K Financial Statement

#000091117723000012 Filed on February 17, 2023

Income Statement

Concept	2022 Q4	2022
Revenue	$272.1M	$1.085B
YoY Change	12.53%	22.03%
Cost Of Revenue	$184.3M	$723.1M
YoY Change	13.22%	24.16%
Gross Profit	$87.79M	$362.0M
YoY Change	11.1%	17.98%
Gross Profit Margin	32.26%	33.36%
Selling, General & Admin	$35.72M	$133.4M
YoY Change	13.39%	12.27%
% of Gross Profit	40.69%	36.86%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$33.25M	$126.4M
YoY Change	14.32%	21.97%
% of Gross Profit	37.87%	34.91%
Operating Expenses	$68.96M	$259.8M
YoY Change	13.84%	16.79%
Operating Profit	$18.83M	$95.39M
YoY Change	2.11%	22.84%
Interest Expense	-$6.195M	$23.72M
YoY Change	19.36%	11.74%
% of Operating Profit	-32.9%	24.87%
Other Income/Expense, Net	$607.0K	-$20.43M
YoY Change	24.39%	4.15%
Pretax Income	$11.63M	$74.97M
YoY Change	0.14%	29.15%
Income Tax	$3.210M	$21.89M
% Of Pretax Income	27.6%	29.2%
Net Earnings	$8.421M	$53.08M
YoY Change	-7.92%	29.15%
Net Earnings / Revenue	3.09%	4.89%
Basic Earnings Per Share		$1.03
Diluted Earnings Per Share	$0.16	$1.03
COMMON SHARES
Basic Shares Outstanding		51.62M shares
Diluted Shares Outstanding		51.77M shares

Balance Sheet

Concept	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$71.15M	$71.15M
YoY Change	110.45%	110.45%
Cash & Equivalents	$71.15M	$71.15M
Short-Term Investments
Other Short-Term Assets	$6.787M	$21.97M
YoY Change	112.36%	37.63%
Inventory	$13.47M	$13.47M
Prepaid Expenses	$15.18M
Receivables	$100.9M	$100.9M
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$207.5M	$207.5M
YoY Change	41.64%	41.64%
LONG-TERM ASSETS
Property, Plant & Equipment	$812.6M	$812.6M
YoY Change	26.06%	10.05%
Goodwill	$274.5M
YoY Change	17.86%
Intangibles
YoY Change
Long-Term Investments	$0.00	$10.97M
YoY Change		-2.64%
Other Assets	$27.11M	$51.92M
YoY Change	83.54%	-14.69%
Total Long-Term Assets	$1.242B	$1.242B
YoY Change	9.2%	9.2%
TOTAL ASSETS
Total Short-Term Assets	$207.5M	$207.5M
Total Long-Term Assets	$1.242B	$1.242B
Total Assets	$1.449B	$1.449B
YoY Change	12.9%	12.9%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$74.20M	$74.20M
YoY Change	17.62%	17.62%
Accrued Expenses	$90.69M	$90.69M
YoY Change	25.94%	25.94%
Deferred Revenue	$3.742M
YoY Change	9.93%
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due	$8.968M	$8.968M
YoY Change	-9.42%	-9.42%
Total Short-Term Liabilities	$177.6M	$177.6M
YoY Change	16.69%	16.69%
LONG-TERM LIABILITIES
Long-Term Debt	$585.0M	$585.0M
YoY Change	7.84%	7.84%
Other Long-Term Liabilities	$28.28M	$188.3M
YoY Change	-6.32%	13.71%
Total Long-Term Liabilities	$28.28M	$773.3M
YoY Change	-6.32%	9.21%
TOTAL LIABILITIES
Total Short-Term Liabilities	$177.6M	$177.6M
Total Long-Term Liabilities	$28.28M	$773.3M
Total Liabilities	$205.9M	$951.3M
YoY Change	12.88%	10.47%
SHAREHOLDERS EQUITY
Retained Earnings	-$171.9M
YoY Change	-23.59%
Common Stock	$661.8M
YoY Change	1.49%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$497.9M	$497.9M
YoY Change
Total Liabilities & Shareholders Equity	$1.449B	$1.449B
YoY Change	12.9%	12.9%

Cashflow Statement

Concept	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$8.421M	$53.08M
YoY Change	-7.92%	29.15%
Depreciation, Depletion And Amortization	$33.25M	$126.4M
YoY Change	14.32%	21.97%
Cash From Operating Activities	$64.88M	$217.3M
YoY Change	33.37%	18.92%
INVESTING ACTIVITIES
Capital Expenditures	$43.29M	$131.0M
YoY Change	-203.78%	6.22%
Acquisitions		$78.20M
YoY Change		-54.18%
Other Investing Activities	-$2.568M	-$75.96M
YoY Change	-85.19%	-55.28%
Cash From Investing Activities	-$45.86M	-$206.9M
YoY Change	-22.35%	-29.42%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$0.00
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	4.196M	$26.95M
YoY Change	-285.5%	-366.4%
NET CHANGE
Cash From Operating Activities	64.88M	$217.3M
Cash From Investing Activities	-45.86M	-$206.9M
Cash From Financing Activities	4.196M	$26.95M
Net Change In Cash	23.22M	$37.34M
YoY Change	-283.22%	-130.98%
FREE CASH FLOW
Cash From Operating Activities	$64.88M	$217.3M
Capital Expenditures	$43.29M	$131.0M
Free Cash Flow	$21.59M	$86.35M
YoY Change	-76.11%	45.27%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0000911177
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022Q4	us-gaap	Finance Lease Liability Statement Of Financial Position Extensible List FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#LongTermDebtAndCapitalLeaseObligations
CY2021Q4	us-gaap	Finance Lease Liability Statement Of Financial Position Extensible List FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#LongTermDebtAndCapitalLeaseObligations
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	000-23211
CY2022	dei	Entity Registrant Name EntityRegistrantName	CASELLA WASTE SYSTEMS, INC.
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	03-0338873
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	25 Greens Hill Lane
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Rutland
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	VT
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	05701
CY2022	dei	City Area Code CityAreaCode	(802
CY2022	dei	Local Phone Number LocalPhoneNumber	775-0325
CY2022	dei	Security12b Title Security12bTitle	Class A common stock, $0.01 par value per share
CY2022	dei	Trading Symbol TradingSymbol	CWST
CY2022	dei	Security Exchange Name SecurityExchangeName	NASDAQ
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 Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Entity Small Business EntitySmallBusiness	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2022Q2	dei	Entity Public Float EntityPublicFloat	3600000000	usd
CY2022	dei	Auditor Firm AuditorFirmId	49
CY2022	dei	Auditor Name AuditorName	RSM US LLP
CY2022	dei	Auditor Location AuditorLocation	Boston, Massachusetts
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	71152000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	33809000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3016000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3276000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	100886000	usd
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	86979000	usd
CY2022Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	15182000	usd
CY2021Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	12766000	usd
CY2022Q4	us-gaap	Inventory Gross InventoryGross	13472000	usd
CY2021Q4	us-gaap	Inventory Gross InventoryGross	9729000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	6787000	usd
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	3196000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	207479000	usd
CY2021Q4	us-gaap	Assets Current AssetsCurrent	146479000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	1064756000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	973094000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	720550000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	644604000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	92063000	usd
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	93799000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	274458000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	232860000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	91783000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	93723000	usd
CY2022Q4	us-gaap	Restricted Cash And Investments Noncurrent RestrictedCashAndInvestmentsNoncurrent	1900000	usd
CY2021Q4	us-gaap	Restricted Cash And Investments Noncurrent RestrictedCashAndInvestmentsNoncurrent	2122000	usd
CY2022Q4	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	10967000	usd
CY2021Q4	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	11264000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	3742000	usd
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	3404000	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	22903000	usd
CY2021Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	43957000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	27112000	usd
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	14772000	usd
CY2022Q4	us-gaap	Assets Assets	1449215000	usd
CY2021Q4	us-gaap	Assets Assets	1283580000	usd
CY2022Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	8968000	usd
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	9901000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	7000000	usd
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	7307000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	74203000	usd
CY2021Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	63086000	usd
CY2022Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	23556000	usd
CY2021Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	22210000	usd
CY2022Q4	us-gaap	Interest Payable Current InterestPayableCurrent	2858000	usd
CY2021Q4	us-gaap	Interest Payable Current InterestPayableCurrent	2042000	usd
CY2022Q4	us-gaap	Accrued Capping Closure Post Closure And Environmental Costs AccruedCappingClosurePostClosureAndEnvironmentalCosts	11036000	usd
CY2021Q4	us-gaap	Accrued Capping Closure Post Closure And Environmental Costs AccruedCappingClosurePostClosureAndEnvironmentalCosts	7915000	usd
CY2022Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	46237000	usd
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	36328000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	177600000	usd
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	152193000	usd
CY2022Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	585015000	usd
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	542503000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	57345000	usd
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	56375000	usd
CY2022Q4	us-gaap	Accrued Capping Closure Post Closure And Environmental Costs Noncurrent AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent	102642000	usd
CY2021Q4	us-gaap	Accrued Capping Closure Post Closure And Environmental Costs Noncurrent AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent	78999000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	437000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	868000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	28276000	usd
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	30185000	usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	661761000	usd
CY2021Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	652045000	usd
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CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-224999000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	7542000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-5103000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	497900000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	422457000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1449215000	usd
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1283580000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1085089000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	889211000	usd
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	774584000	usd
CY2022	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	723117000	usd
CY2020	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	0	usd
CY2021	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	582403000	usd
CY2020	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	515646000	usd
CY2022	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	133419000	usd
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	118834000	usd
CY2020	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	102410000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	126351000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	103590000	usd
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	90782000	usd
CY2022	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	4613000	usd
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	5304000	usd
CY2020	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1862000	usd
CY2022	cwst	Landfill Closure Credit Charge Net LandfillClosureCreditChargeNet	1436000	usd
CY2021	cwst	Landfill Closure Credit Charge Net LandfillClosureCreditChargeNet	496000	usd
CY2020	cwst	Landfill Closure Credit Charge Net LandfillClosureCreditChargeNet	4587000	usd
CY2022	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	759000	usd
CY2021	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	924000	usd
CY2022	us-gaap	Costs And Expenses CostsAndExpenses	989695000	usd
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	811551000	usd
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	715287000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	95394000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	77660000	usd
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	59297000	usd
CY2022	us-gaap	Interest Income Other InterestIncomeOther	709000	usd
CY2021	us-gaap	Interest Income Other InterestIncomeOther	302000	usd
CY2020	us-gaap	Interest Income Other InterestIncomeOther	303000	usd
CY2022	us-gaap	Interest Expense InterestExpense	23722000	usd
CY2021	us-gaap	Interest Expense InterestExpense	21229000	usd
CY2020	us-gaap	Interest Expense InterestExpense	22371000	usd
CY2022	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	2585000	usd
CY2021	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	1313000	usd
CY2020	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	1073000	usd
CY2022	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-20428000	usd
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-19614000	usd
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-20995000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	74966000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	58046000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	38302000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	21887000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	16946000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-52804000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	53079000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	41100000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	91106000	usd
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51623000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51312000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	48793000	shares
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.03
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.80
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.87
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51767000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51515000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49045000	shares
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.03
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.80
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.86
CY2022	us-gaap	Net Income Loss NetIncomeLoss	53079000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	41100000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	91106000	usd
CY2022	cwst	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Settlements Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossSettlementsBeforeReclassificationAndTax	-1662000	usd
CY2021	cwst	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Settlements Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossSettlementsBeforeReclassificationAndTax	-4743000	usd
CY2020	cwst	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Settlements Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossSettlementsBeforeReclassificationAndTax	-3644000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-1443000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-4763000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-3679000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	16959000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	8480000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-7540000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	16740000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	8500000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-7505000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	4095000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	2086000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-2029000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	12645000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6414000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-5476000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	65724000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	47514000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	85630000	usd
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	122753000	usd
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	144790000	usd
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	939000	usd
CY2020	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	0	usd
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8219000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	91106000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-5476000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	362142000	usd
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1250000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	11551000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	41100000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6414000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	422457000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1564000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8155000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	53079000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	12645000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	497900000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	53079000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	41100000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	91106000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	126351000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	103590000	usd
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	90782000	usd
CY2022	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	8008000	usd
CY2021	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	7324000	usd
CY2020	us-gaap	Accretion Expense Including Asset Retirement Obligations AccretionExpenseIncludingAssetRetirementObligations	7090000	usd
CY2022	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1903000	usd
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	2288000	usd
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	2169000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	8155000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	11551000	usd
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	8219000	usd
CY2022	us-gaap	Operating Lease Expense OperatingLeaseExpense	13804000	usd
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	13827000	usd
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	16257000	usd
CY2022	cwst	Loss Gain On Disposition Of Assets And Other Noncash Expense Income LossGainOnDispositionOfAssetsAndOtherNoncashExpenseIncome	737000	usd
CY2021	cwst	Loss Gain On Disposition Of Assets And Other Noncash Expense Income LossGainOnDispositionOfAssetsAndOtherNoncashExpenseIncome	1055000	usd
CY2020	cwst	Loss Gain On Disposition Of Assets And Other Noncash Expense Income LossGainOnDispositionOfAssetsAndOtherNoncashExpenseIncome	1753000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	16527000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	15073000	usd
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-52288000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	7101000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	7422000	usd
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-5815000	usd
CY2022	cwst	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-5486000	usd
CY2021	cwst	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-5655000	usd
CY2020	cwst	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-5386000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	11075000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	13888000	usd
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-15226000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	11054000	usd
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	6343000	usd
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1211000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	1316000	usd
CY2021	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-7539000	usd
CY2020	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-9158000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	217314000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	182737000	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	139922000	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	78197000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	170647000	usd
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	32457000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	130960000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	123295000	usd
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	108108000	usd
CY2022	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	1637000	usd
CY2021	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	0	usd
CY2020	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	0	usd
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	600000	usd
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	788000	usd
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	533000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-206920000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-293154000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-140032000	usd
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt And Capital Securities Net ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet	88200000	usd
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt And Capital Securities Net ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet	3701000	usd
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt And Capital Securities Net ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet	157000000	usd
CY2022	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	59211000	usd
CY2021	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	10305000	usd
CY2020	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	149378000	usd
CY2022	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1232000	usd
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	3684000	usd
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1531000	usd
CY2022	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	1000000	usd
CY2021	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	usd
CY2020	us-gaap	Payment For Contingent Consideration Liability Financing Activities PaymentForContingentConsiderationLiabilityFinancingActivities	0	usd
CY2022	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	192000	usd
CY2021	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	172000	usd
CY2020	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	100000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	144790000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	26949000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-10116000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	150981000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	37343000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-120533000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	150871000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	33809000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	154342000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3471000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	71152000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	33809000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	154342000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	21003000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	19025000	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	20117000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2798000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1438000	usd
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-1534000	usd
CY2022	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	11919000	usd
CY2021	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	20753000	usd
CY2020	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	18069000	usd
CY2022	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2022	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:12pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Management’s Estimates and Assumptions</span></div><div style="margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Preparation of our consolidated financial statements in accordance with GAAP requires management to make certain estimates and assumptions. These estimates and assumptions affect the accounting for and recognition and disclosure of assets, liabilities, equity, revenues and expenses. We must make these estimates and assumptions because certain information that we use is dependent on future events, cannot be calculated with a high degree of precision given the available data or simply cannot be readily calculated. In some cases, these estimates are difficult to determine, and we must exercise significant judgment. In preparing our consolidated financial statements, the estimates and assumptions that we consider to be significant and that present the greatest amount of uncertainty relate to our accounting for landfills, environmental remediation liabilities, asset impairments, if applicable, accounts receivable valuation allowance for credit losses, self-insurance reserves, deferred taxes and uncertain tax positions, estimates of the fair values of assets acquired and liabilities assumed in any acquisition, contingent liabilities and stock-based compensation. Each of these items is discussed in more detail elsewhere in these notes to the consolidated financial statements, as applicable. Actual results may differ materially from the estimates and assumptions that we use in the preparation of our consolidated financial statements.</span></div>
CY2022	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-top:12pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Concentrations of Credit Risk</span></div><div style="margin-top:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments that potentially subject us to concentrations of credit risk consist of cash and cash equivalents, restricted investment securities, accounts receivable and derivative instruments. We maintain cash and cash equivalents and restricted investment securities with banks that at times exceed applicable insurance limits. We reduce our exposure to credit risk by maintaining such deposits with high quality financial institutions. Our concentration of credit risk with respect to accounts receivable is limited because of the large number and diversity of customers we serve, thus reducing the credit risk associated with any one customer group. As of December 31, 2022, no single customer or customer group represented greater than 5% of total accounts receivable. We manage credit risk through credit evaluations, credit limits, and monitoring procedures, but generally do not require collateral to support accounts receivable. We reduce our exposure to credit risk associated with derivative instruments by entering into agreements with high quality financial institutions and by evaluating and regularly monitoring their creditworthiness.</span></div>
CY2022	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	330000	usd
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	718000	usd
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	413000	usd
CY2022	cwst	Closureand Post Closure Costs Incurrence Period ClosureandPostClosureCostsIncurrencePeriod	P30Y
CY2022	cwst	Inflation Rate InflationRate	0.022
CY2022	cwst	Numberof Landfill Operationand Management Agreements Entered Into NumberofLandfillOperationandManagementAgreementsEnteredInto	3	agreement
CY2022	us-gaap	Finite Lived Intangible Asset Useful Life FiniteLivedIntangibleAssetUsefulLife	P10Y
CY2022Q4	us-gaap	Equity Method Investments EquityMethodInvestments	0	usd
CY2021Q4	us-gaap	Equity Method Investments EquityMethodInvestments	0	usd
CY2022Q4	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	10967000	usd
CY2021Q4	us-gaap	Other Investments And Securities At Cost OtherInvestmentsAndSecuritiesAtCost	11264000	usd
CY2022	cwst	Liability For Claims And Claims Adjustment Expense Workers Compensation Maximum Exposure LiabilityForClaimsAndClaimsAdjustmentExpenseWorkersCompensationMaximumExposure	1250000	usd
CY2022Q4	us-gaap	Self Insurance Reserve SelfInsuranceReserve	22184000	usd
CY2021Q4	us-gaap	Self Insurance Reserve SelfInsuranceReserve	19847000	usd
CY2022Q4	us-gaap	Contract With Customer Asset Gross Current ContractWithCustomerAssetGrossCurrent	102234000	usd
CY2021Q4	us-gaap	Contract With Customer Asset Gross Current ContractWithCustomerAssetGrossCurrent	89232000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	3742000	usd
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	3404000	usd
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2021	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	usd
CY2020	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	usd
CY2022	us-gaap	Impairment Of Investments ImpairmentOfInvestments	0	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1085089000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1085089000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	889211000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	889211000	usd
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	774584000	usd
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	774584000	usd
CY2022	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	14	business
CY2021	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	10	business
CY2020	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	10	business
CY2022	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	1100238000	usd
CY2021	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	991417000	usd
CY2020	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	922902000	usd
CY2022	cwst	Business Acquisitions Pro Forma Operating Income Loss BusinessAcquisitionsProFormaOperatingIncomeLoss	96779000	usd
CY2021	cwst	Business Acquisitions Pro Forma Operating Income Loss BusinessAcquisitionsProFormaOperatingIncomeLoss	82223000	usd
CY2020	cwst	Business Acquisitions Pro Forma Operating Income Loss BusinessAcquisitionsProFormaOperatingIncomeLoss	63768000	usd
CY2022	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	53354000	usd
CY2021	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	37449000	usd
CY2020	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	84549000	usd
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51623000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51312000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	48793000	shares
CY2022	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	1.03
CY2021	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	0.73
CY2020	us-gaap	Business Acquisition Pro Forma Earnings Per Share Basic BusinessAcquisitionProFormaEarningsPerShareBasic	1.73
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51767000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51515000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49045000	shares
CY2022	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	1.03
CY2021	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	0.73
CY2020	us-gaap	Business Acquisition Pro Forma Earnings Per Share Diluted BusinessAcquisitionProFormaEarningsPerShareDiluted	1.72
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3276000	usd
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	2333000	usd
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1468000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1893000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1896000	usd
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1971000	usd
CY2022	cwst	Accounts Receivable Allowance For Credit Loss Writeoff Recoveries AccountsReceivableAllowanceForCreditLossWriteoffRecoveries	2153000	usd
CY2021	cwst	Accounts Receivable Allowance For Credit Loss Writeoff Recoveries AccountsReceivableAllowanceForCreditLossWriteoffRecoveries	953000	usd
CY2020	cwst	Accounts Receivable Allowance For Credit Loss Writeoff Recoveries AccountsReceivableAllowanceForCreditLossWriteoffRecoveries	1295000	usd
CY2020	us-gaap	Depreciation Depreciation	54370000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3016000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	3276000	usd
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	2333000	usd
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset Before Accumulated Amortization FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization	90362000	usd
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset Before Accumulated Amortization FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization	78851000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	1785306000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	1617698000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	1064756000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	973094000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	720550000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	644604000	usd
CY2022	us-gaap	Depreciation Depreciation	78139000	usd
CY2021	us-gaap	Depreciation Depreciation	62342000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	10009000	usd
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	6339000	usd
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	5118000	usd
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1638000	usd
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1446000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	13804000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	13827000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	3884000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	3525000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	522000	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	477000	usd
CY2022	us-gaap	Lease Cost LeaseCost	26187000	usd
CY2021	us-gaap	Lease Cost LeaseCost	24393000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	7847000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	6534000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	10609000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	11919000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	20753000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	9835000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	3827000	usd
CY2022Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P5Y6M
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P9Y7M6D
CY2022Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.036
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.044
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	9672000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	10068000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	8845000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	10313000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	9324000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	10153000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	8567000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	9601000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	11070000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	5620000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	32643000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	10367000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	80121000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	56122000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	15776000	usd
CY2022Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	6309000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	64345000	usd
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	49813000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	232860000	usd
CY2022	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	40707000	usd
CY2022	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	891000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	274458000	usd
CY2020Q4	us-gaap	Goodwill Goodwill	194901000	usd
CY2021	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	37932000	usd
CY2021	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	27000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	232860000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	166785000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	75002000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	91783000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	152132000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	58409000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	93723000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	16593000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10953000	usd
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	8893000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	16137000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	15468000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	14427000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	12744000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	11266000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	21741000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	86914000	usd
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	82533000	usd
CY2022	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	4857000	usd
CY2021	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	5408000	usd
CY2022	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	18415000	usd
CY2021	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-836000	usd
CY2022	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	7565000	usd
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	6775000	usd
CY2022	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	4073000	usd
CY2021	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	6966000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	113678000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	86914000	usd
CY2022Q4	cwst	Accrued Capital Expenditures Current AccruedCapitalExpendituresCurrent	10842000	usd
CY2021Q4	cwst	Accrued Capital Expenditures Current AccruedCapitalExpendituresCurrent	6534000	usd
CY2022Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	35395000	usd
CY2021Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	29794000	usd
CY2022Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	46237000	usd
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	36328000	usd
CY2022Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.036
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	49813000	usd
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	45724000	usd
CY2022Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	603477000	usd
CY2021Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	562570000	usd
CY2022Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	9494000	usd
CY2021Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	10166000	usd
CY2022Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	593983000	usd
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	552404000	usd
CY2022Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	8968000	usd
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	9901000	usd
CY2022Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	585015000	usd
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	542503000	usd
CY2022Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	9494000	usd
CY2021Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	10166000	usd
CY2022	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	21691000	usd
CY2021	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	19201000	usd
CY2020	us-gaap	Interest Expense Debt Excluding Amortization InterestExpenseDebtExcludingAmortization	20084000	usd
CY2022	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1903000	usd
CY2021	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	2288000	usd
CY2020	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	2169000	usd
CY2022	cwst	Letters Of Credit Fees LettersOfCreditFees	458000	usd
CY2021	cwst	Letters Of Credit Fees LettersOfCreditFees	458000	usd
CY2020	cwst	Letters Of Credit Fees LettersOfCreditFees	531000	usd
CY2022	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	330000	usd
CY2021	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	718000	usd
CY2020	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	413000	usd
CY2022	us-gaap	Interest Expense InterestExpense	23722000	usd
CY2021	us-gaap	Interest Expense InterestExpense	21229000	usd
CY2020	us-gaap	Interest Expense InterestExpense	22371000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	8968000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	12691000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	43324000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	352410000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	5249000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	180835000	usd
CY2022Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	603477000	usd
CY2022Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	821000	usd
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	5887000	usd
CY2020Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	5200000	usd
CY2022	us-gaap	Accrual For Environmental Loss Contingencies Payments1 AccrualForEnvironmentalLossContingenciesPayments1	415000	usd
CY2021	us-gaap	Accrual For Environmental Loss Contingencies Payments1 AccrualForEnvironmentalLossContingenciesPayments1	346000	usd
CY2022Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	6335000	usd
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	5887000	usd
CY2022	cwst	Environmental Loss Contingency Current Statement Of Financial Position Extensible Enumeration Not Disclosed Flag EnvironmentalLossContingencyCurrentStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Less: current portion
CY2021	cwst	Environmental Loss Contingency Current Statement Of Financial Position Extensible Enumeration Not Disclosed Flag EnvironmentalLossContingencyCurrentStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Less: current portion
CY2022Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	814000	usd
CY2021Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	353000	usd
CY2021	cwst	Environmental Loss Contingency Noncurrent Statement Of Financial Position Extensible Enumeration Not Disclosed Flag EnvironmentalLossContingencyNoncurrentStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Long-term portion
CY2022	cwst	Environmental Loss Contingency Noncurrent Statement Of Financial Position Extensible Enumeration Not Disclosed Flag EnvironmentalLossContingencyNoncurrentStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Long-term portion
CY2022Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	5521000	usd
CY2021Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	5534000	usd
CY2022Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due Within One Year AccrualForEnvironmentalLossContingenciesUndiscountedDueWithinOneYear	782000	usd
CY2022Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Second Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInSecondYear	1279000	usd
CY2022Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Third Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInThirdYear	308000	usd
CY2022Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Fourth Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInFourthYear	318000	usd
CY2022Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due In Fifth Year AccrualForEnvironmentalLossContingenciesUndiscountedDueInFifthYear	299000	usd
CY2022Q4	us-gaap	Accrual For Environmental Loss Contingencies Undiscounted Due After Fifth Year AccrualForEnvironmentalLossContingenciesUndiscountedDueAfterFifthYear	4009000	usd
CY2022Q4	us-gaap	Accrual For Environmental Loss Contingencies Gross AccrualForEnvironmentalLossContingenciesGross	6995000	usd
CY2022	cwst	Environmental Loss Contingency Statement Of Financial Position Extensible Enumeration Not Disclosed Flag EnvironmentalLossContingencyStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	consolidated balance sheet
CY2022Q4	us-gaap	Accrual For Environmental Loss Contingencies Gross AccrualForEnvironmentalLossContingenciesGross	6995000	usd
CY2022Q4	us-gaap	Accrual For Environmental Loss Contingencies Discount AccrualForEnvironmentalLossContingenciesDiscount	660000	usd
CY2022Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	6335000	usd
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	944000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	77000	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	15.68
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	75000	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	82.47
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	23000	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	8.56
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	0	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
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	129000	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	55.60
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y2M12D
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	3307000	usd
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	49000	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	12.88
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y3M18D
CY2022Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	3248000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P4Y4M24D
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	17011000	usd
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	20106000	usd
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	18329000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1744000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2304000	usd
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	6796000	usd
CY2022	cwst	Derivative Asset Statement Of Financial Position Extensible Enumeration Not Disclosed Flag DerivativeAssetStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Interest rate swaps
CY2021	cwst	Derivative Asset Statement Of Financial Position Extensible Enumeration Not Disclosed Flag DerivativeAssetStatementOfFinancialPositionExtensibleEnumerationNotDisclosedFlag	Interest rate swaps
CY2022	us-gaap	Deferred Compensation Arrangement With Individual Requisite Service Period1 DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1	P2Y
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	3558000	usd
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2811000	usd
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2357000	usd
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$CWST
CASELLA WASTE SYSTEMS INC Stock $cwst

2022 Q4 Form 10-K Financial Statement

#000091117723000012 Filed on February 17, 2023

Income Statement

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$CWST CASELLA WASTE SYSTEMS INC Stock $cwst

2022 Q4 Form 10-K Financial Statement

#000091117723000012 Filed on February 17, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CWST
CASELLA WASTE SYSTEMS INC Stock $cwst