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v2.4.1.9

Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified | 8 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Apr. 30, 2014 | Apr. 30, 2013 | Apr. 30, 2012
Cash Flows from Operating Activities: |  |  |  |
Net loss | $ (5,810)us-gaap_ProfitLoss | $ (27,404)us-gaap_ProfitLoss | $ (54,463)us-gaap_ProfitLoss | $ (77,592)us-gaap_ProfitLoss
Adjustments to reconcile net loss to net cash provided by operating activities: |  |  |  |
(Income) loss from discontinued operations, net of tax |  | (284)us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax | 4,480 us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax | 614 us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax
Loss (gain) on disposal of discontinued operations, net of tax |  | 378 us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax |  | (725)us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
Gain from divestiture | (553)cwst_NonCashGainOnDivestiture |  |  |
Gain on sale of property and equipment | (197)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | (840)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | (407)us-gaap_GainLossOnSaleOfPropertyPlantEquipment | (1,004)us-gaap_GainLossOnSaleOfPropertyPlantEquipment
Depreciation and amortization | 41,485 us-gaap_DepreciationDepletionAndAmortization | 60,339 us-gaap_DepreciationDepletionAndAmortization | 56,576 us-gaap_DepreciationDepletionAndAmortization | 58,415 us-gaap_DepreciationDepletionAndAmortization
Depletion of landfill operating lease obligations | 7,799 cwst_DepletionOfLandfillOperatingLeaseObligations | 9,948 cwst_DepletionOfLandfillOperatingLeaseObligations | 9,372 cwst_DepletionOfLandfillOperatingLeaseObligations | 8,482 cwst_DepletionOfLandfillOperatingLeaseObligations
Interest accretion on landfill and environmental remediation liabilities | 2,366 us-gaap_AccretionExpenseIncludingAssetRetirementObligations | 3,985 us-gaap_AccretionExpenseIncludingAssetRetirementObligations | 3,675 us-gaap_AccretionExpenseIncludingAssetRetirementObligations | 3,479 us-gaap_AccretionExpenseIncludingAssetRetirementObligations
Asset impairment charge |  | 7,455 us-gaap_AssetImpairmentCharges |  | 40,746 us-gaap_AssetImpairmentCharges
Development project charge |  | 1,394 cwst_AbandonedDevelopmentProjectExpense |  | 131 cwst_AbandonedDevelopmentProjectExpense
Gain on settlement of acquisition related contingent consideration |  | (1,058)cwst_GainLossOnSettlementOfContingentConsideration |  |
Amortization of discount on senior subordinated notes and second lien notes | 173 us-gaap_AmortizationOfDebtDiscountPremium | 243 us-gaap_AmortizationOfDebtDiscountPremium | 626 us-gaap_AmortizationOfDebtDiscountPremium | 964 us-gaap_AmortizationOfDebtDiscountPremium
Loss from equity method investments |  | 936 us-gaap_IncomeLossFromEquityMethodInvestments | 4,441 us-gaap_IncomeLossFromEquityMethodInvestments | 9,994 us-gaap_IncomeLossFromEquityMethodInvestments
Impairment of investments | 2,320 us-gaap_ImpairmentOfInvestments |  |  | 10,680 us-gaap_ImpairmentOfInvestments
Gain on sale of equity method investment |  | (593)us-gaap_EquityMethodInvestmentRealizedGainLossOnDisposal |  |
Loss on derivative instruments | 225 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet | 280 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet | 4,512 us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet |
Loss on debt extinguishment |  |  | 15,584 us-gaap_GainsLossesOnExtinguishmentOfDebt | 300 us-gaap_GainsLossesOnExtinguishmentOfDebt
Stock-based compensation | 1,639 us-gaap_ShareBasedCompensation | 2,404 us-gaap_ShareBasedCompensation | 2,516 us-gaap_ShareBasedCompensation | 1,855 us-gaap_ShareBasedCompensation
Excess tax benefit on the vesting of share based awards | (84)us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities |  | (96)us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities | (254)us-gaap_ExcessTaxBenefitFromShareBasedCompensationOperatingActivities
Deferred income taxes | 605 us-gaap_DeferredIncomeTaxExpenseBenefit | 1,579 us-gaap_DeferredIncomeTaxExpenseBenefit | (3,543)us-gaap_DeferredIncomeTaxExpenseBenefit | 1,824 us-gaap_DeferredIncomeTaxExpenseBenefit
Changes in assets and liabilities, net of effects of acquisitions and divestitures: |  |  |  |
Accounts receivable | (3,147)us-gaap_IncreaseDecreaseInAccountsReceivable | (3,418)us-gaap_IncreaseDecreaseInAccountsReceivable | 139 us-gaap_IncreaseDecreaseInAccountsReceivable | 7,442 us-gaap_IncreaseDecreaseInAccountsReceivable
Accounts payable | (3,270)us-gaap_IncreaseDecreaseInAccountsPayable | (186)us-gaap_IncreaseDecreaseInAccountsPayable | 4,152 us-gaap_IncreaseDecreaseInAccountsPayable | 4,210 us-gaap_IncreaseDecreaseInAccountsPayable
Prepaid expenses, inventories and other assets | (3,550)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets | (463)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets | 4,056 us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets | 336 us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
Accrued expenses and other liabilities | (1,715)us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities | (5,053)us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities | (7,714)us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities | (5,726)us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities
Net cash provided by operating activities | 38,286 us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations | 49,642 us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations | 43,906 us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations | 64,171 us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
Cash Flows from Investing Activities: |  |  |  |
Acquisitions, net of cash acquired | (360)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | (8,305)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | (25,225)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | (2,102)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired
Additions to property, plant and equipment | (55,016)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (43,326)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (53,281)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (57,834)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Payments on landfill operating lease contracts | (4,739)cwst_PaymentsForLandfillOperatingLease | (6,505)cwst_PaymentsForLandfillOperatingLease | (6,261)cwst_PaymentsForLandfillOperatingLease | (6,616)cwst_PaymentsForLandfillOperatingLease
Payments for capital related to divestiture |  |  | (618)cwst_PaymentsForCapitalExpenditureOnDivestitureOfBusiness |
Payments related to investments |  | (2,107)us-gaap_PaymentsToAcquireInvestments | (3,207)us-gaap_PaymentsToAcquireInvestments | (5,045)us-gaap_PaymentsToAcquireInvestments
Proceeds from sale of equity method investment |  | 3,442 us-gaap_ProceedsFromSaleOfEquityMethodInvestments |  |
Proceeds from sale of property and equipment | 463 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment | 1,524 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment | 883 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment | 1,492 us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
Net cash used in investing activities | (59,697)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations | (57,910)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations | (89,455)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations | (70,634)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
Cash Flows from Financing Activities: |  |  |  |
Proceeds from long-term borrowings | 136,800 us-gaap_ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet | 161,650 us-gaap_ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet | 376,346 us-gaap_ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet | 163,500 us-gaap_ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet
Principal payments on long-term debt | (109,281)us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities | (152,380)us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities | (360,858)us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities | (152,806)us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities
Change in restricted cash | (5,819)us-gaap_ProceedsFromRepaymentsOfRestrictedCashFinancingActivities |  |  |
Payments of tender premium and costs on second lien notes |  |  | (10,743)us-gaap_PaymentsOfDebtExtinguishmentCosts |
Payments of financing costs | (2,605)us-gaap_PaymentsOfFinancingCosts | (405)us-gaap_PaymentsOfFinancingCosts | (4,609)us-gaap_PaymentsOfFinancingCosts | (1,592)us-gaap_PaymentsOfFinancingCosts
Net proceeds from the sale of Class A common stock |  |  | 42,184 us-gaap_ProceedsFromIssuanceOfCommonStock |
Proceeds from the exercise of share based awards | 143 us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions | 143 us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions |  | 337 us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions
Excess tax benefit on the vesting of share based awards | 84 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities |  | 96 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities | 254 us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities
Contributions from noncontrolling interest holders |  |  | 2,531 us-gaap_ProceedsFromMinorityShareholders | 536 us-gaap_ProceedsFromMinorityShareholders
Net cash provided by (used in) financing activities | 19,322 us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations | 9,008 us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations | 44,947 us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations | 10,229 us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations
Discontinued Operations: |  |  |  |
Net cash used in operating activities |  | (201)us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations | (1,037)us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations | (396)us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations
Net cash provided by (used in) investing activities | 1,830 us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations | 170 us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations | (1,140)us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations | (653)us-gaap_CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations
Net cash provided by (used in) discontinued operations | 1,830 us-gaap_NetCashProvidedByUsedInDiscontinuedOperations | (31)us-gaap_NetCashProvidedByUsedInDiscontinuedOperations | (2,177)us-gaap_NetCashProvidedByUsedInDiscontinuedOperations | (1,049)us-gaap_NetCashProvidedByUsedInDiscontinuedOperations
Net (decrease) increase in cash and cash equivalents | (259)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | 709 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | (2,779)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | 2,717 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease
Cash and cash equivalents, beginning of period | 2,464 us-gaap_CashAndCashEquivalentsAtCarryingValue | 1,755 us-gaap_CashAndCashEquivalentsAtCarryingValue | 4,534 us-gaap_CashAndCashEquivalentsAtCarryingValue | 1,817 us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash and cash equivalents, end of period | 2,205 us-gaap_CashAndCashEquivalentsAtCarryingValue | 2,464 us-gaap_CashAndCashEquivalentsAtCarryingValue | 1,755 us-gaap_CashAndCashEquivalentsAtCarryingValue | 4,534 us-gaap_CashAndCashEquivalentsAtCarryingValue
Cash paid during the period for: |  |  |  |
Interest | 18,439 us-gaap_InterestPaidNet | 35,162 us-gaap_InterestPaidNet | 41,348 us-gaap_InterestPaidNet | 40,710 us-gaap_InterestPaidNet
Income taxes, net of refunds | 182 us-gaap_IncomeTaxesPaidNet | 532 us-gaap_IncomeTaxesPaidNet | (253)us-gaap_IncomeTaxesPaidNet | 5,048 us-gaap_IncomeTaxesPaidNet
Supplemental Disclosures of Non-Cash Investing and Financing Activities: |  |  |  |
Receivable due from noncontrolling interest holder | 152 us-gaap_NotesIssued1 |  |  |
Property, plant and equipment acquired through lease obligations |  | 2,301 us-gaap_CapitalLeaseObligationsIncurred |  |
Acquisition [Member] |  |  |  |
Cash Flows from Investing Activities: |  |  |  |
Additions to property, plant and equipment | $ (45)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cwst_AcquisitionsMember | $ (2,633)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cwst_AcquisitionsMember | $ (1,746)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cwst_AcquisitionsMember | $ (529)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cwst_AcquisitionsMember

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- Definition The cash outflow associated with landfill operating agreements consisting of up-front or one-time payments, future minimum rental payments, including success/expansion fees, other direct costs and capping, closure and post closure costs. + References No definition available. + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629 + Details
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- Definition Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The net cash inflow or outflow from cash and cash items that are not available for withdrawal or usage. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4K -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591552-111686 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=35736750&loc=SL4591551-111686 + Details
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- Definition The cash outflow associated with security instruments that either represent a creditor or an ownership relationship with the holder of the investment security with a maturity of beyond one year or normal operating cycle, if longer. Includes repayments of (a) debt, (b) capital lease obligations, (c) mandatory redeemable capital securities, and (d) any combination of (a), (b), or (c). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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