XML 74 R39.htm IDEA: XBRL DOCUMENT
v3.20.1

REVENUE RECOGNITION - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Disaggregation of Revenue [Line Items] |  |
Total revenues | $ 182,910 | $ 163,664
Transferred at a point-in-time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 4,753 | 6,736
Transferred over time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 178,157 | 156,928
Collection |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 95,468 | 83,562
Landfill |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 19,854 | 19,185
Transfer |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 16,089 | 14,261
Customer solutions |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 21,663 | 18,154
Recycling |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 11,207 | 11,207
Organics |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 14,932 | 13,596
Transportation |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 2,671 | 2,563
Landfill gas-to-energy |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 1,026 | 1,136
Eastern |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 50,143 | 46,997
Eastern | Transferred at a point-in-time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 56 | 36
Eastern | Transferred over time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 50,087 | 46,961
Eastern | Collection |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 36,829 | 33,965
Eastern | Landfill |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 3,544 | 3,717
Eastern | Transfer |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 9,383 | 8,986
Eastern | Customer solutions |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 0 | 0
Eastern | Recycling |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 2 | 0
Eastern | Organics |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 0 | 0
Eastern | Transportation |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 0 | 0
Eastern | Landfill gas-to-energy |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 385 | 329
Western |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 85,206 | 74,151
Western | Transferred at a point-in-time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 235 | 309
Western | Transferred over time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 84,971 | 73,842
Western | Collection |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 58,639 | 49,597
Western | Landfill |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 16,310 | 15,468
Western | Transfer |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 6,706 | 5,275
Western | Customer solutions |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 0 | 0
Western | Recycling |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 239 | 441
Western | Organics |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 0 | 0
Western | Transportation |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 2,671 | 2,563
Western | Landfill gas-to-energy |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 641 | 807
Resource Solutions |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 47,561 | 42,516
Resource Solutions | Transferred at a point-in-time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 4,462 | 6,391
Resource Solutions | Transferred over time |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 43,099 | 36,125
Resource Solutions | Collection |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 0 | 0
Resource Solutions | Landfill |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 0 | 0
Resource Solutions | Transfer |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 0 | 0
Resource Solutions | Customer solutions |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 21,663 | 18,154
Resource Solutions | Recycling |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 10,966 | 10,766
Resource Solutions | Organics |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 14,932 | 13,596
Resource Solutions | Transportation |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 0 | 0
Resource Solutions | Landfill gas-to-energy |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | $ 0 | $ 0

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DisaggregationOfRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_TimingOfTransferOfGoodOrServiceAxis=us-gaap_TransferredAtPointInTimeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TimingOfTransferOfGoodOrServiceAxis=us-gaap_TransferredOverTimeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cwst_CollectionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cwst_LandfillRevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cwst_TransferMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cwst_CustomerSolutionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cwst_RecyclingRevenuesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cwst_OrganicsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cwst_TransportationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cwst_LandfillGasToEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=cwst_EasternRegionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=cwst_WesternRegionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=cwst_ResourceSolutionsRegionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |