XML 41 R40.htm IDEA: XBRL DOCUMENT
v3.20.1

REVENUES - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | $ 858,563 | $ 780,839
Technical Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 275,273 | 251,919
Field and Emergency Response Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 105,912 | 71,626
Industrial Services and Other |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 147,009 | 150,747
Safety-Kleen Environmental Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 214,481 | 207,083
Safety-Kleen Oil |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 115,888 | 99,464
United States |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 746,245 | 675,337
Canada |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 112,318 | 105,502
Environmental Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 566,362 | 509,022
Safety-Kleen |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 293,212 | 272,477
Operating segments | Environmental Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 528,104 | 473,698
Operating segments | Environmental Services | Technical Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 275,273 | 251,919
Operating segments | Environmental Services | Field and Emergency Response Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 105,912 | 71,626
Operating segments | Environmental Services | Industrial Services and Other |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 146,919 | 150,153
Operating segments | Environmental Services | Safety-Kleen Environmental Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 0 | 0
Operating segments | Environmental Services | Safety-Kleen Oil |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 0 | 0
Operating segments | Environmental Services | Oil, Gas and Lodging Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues |  | 34,055
Operating segments | Environmental Services | United States |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 440,014 | 388,169
Operating segments | Environmental Services | Canada |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 88,090 | 85,529
Operating segments | Safety-Kleen |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 330,369 | 306,547
Operating segments | Safety-Kleen | Technical Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 0 | 0
Operating segments | Safety-Kleen | Field and Emergency Response Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 0 | 0
Operating segments | Safety-Kleen | Industrial Services and Other |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 0 | 0
Operating segments | Safety-Kleen | Safety-Kleen Environmental Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 214,481 | 207,083
Operating segments | Safety-Kleen | Safety-Kleen Oil |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 115,888 | 99,464
Operating segments | Safety-Kleen | United States |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 306,533 | 286,574
Operating segments | Safety-Kleen | Canada |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 23,836 | 19,973
Corporate Items |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 90 | 594
Corporate Items | Technical Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 0 | 0
Corporate Items | Field and Emergency Response Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 0 | 0
Corporate Items | Industrial Services and Other |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 90 | 594
Corporate Items | Safety-Kleen Environmental Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 0 | 0
Corporate Items | Safety-Kleen Oil |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | 0 | 0
Corporate Items | Oil, Gas and Lodging Services |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues |  | 594
Corporate Items | United States |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | (302) | 594
Corporate Items | Canada |  |
Disaggregation of Revenue [Line Items] |  |
Total third party revenues | $ 392 | $ 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: | srt_ProductOrServiceAxis=clh_TechnicalServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

X
- Details
Name: | srt_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |