XML 51 R41.htm IDEA: XBRL DOCUMENT
v3.21.2

REVENUES - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | $ 951,479 | $ 779,344 | $ 2,686,085 | $ 2,347,907
Technical Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 308,158 | 257,612 | 887,063 | 774,814
Field and Emergency Response Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 116,677 | 115,989 | 328,831 | 349,254
Industrial Services and Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 155,036 | 124,654 | 425,371 | 366,791
Safety-Kleen Environmental Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 203,570 | 203,455 | 597,790 | 612,808
Safety-Kleen Oil |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 168,038 | 77,634 | 447,030 | 244,240
United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 817,910 | 666,649 | 2,329,367 | 2,044,523
Canada |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 133,569 | 112,695 | 356,718 | 303,384
Environmental Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 745,633 | 650,560 | 2,124,332 | 1,968,346
Safety-Kleen Sustainability Solutions |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 205,787 | 128,712 | 561,536 | 379,343
Operating segments | Environmental Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 743,831 | 651,689 | 2,119,856 | 1,969,445
Operating segments | Environmental Services | Technical Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 308,158 | 257,612 | 887,063 | 774,814
Operating segments | Environmental Services | Field and Emergency Response Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 116,677 | 115,989 | 328,831 | 349,254
Operating segments | Environmental Services | Industrial Services and Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 154,977 | 124,582 | 425,154 | 366,573
Operating segments | Environmental Services | Safety-Kleen Environmental Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 164,019 | 153,506 | 478,808 | 478,804
Operating segments | Environmental Services | Safety-Kleen Oil |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Operating segments | Environmental Services | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 632,755 | 554,050 | 1,824,848 | 1,704,945
Operating segments | Environmental Services | Canada |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 111,076 | 97,639 | 295,008 | 264,500
Operating segments | Safety-Kleen Sustainability Solutions |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 207,589 | 127,583 | 566,012 | 378,244
Operating segments | Safety-Kleen Sustainability Solutions | Technical Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Operating segments | Safety-Kleen Sustainability Solutions | Field and Emergency Response Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Operating segments | Safety-Kleen Sustainability Solutions | Industrial Services and Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Operating segments | Safety-Kleen Sustainability Solutions | Safety-Kleen Environmental Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 39,551 | 49,949 | 118,982 | 134,004
Operating segments | Safety-Kleen Sustainability Solutions | Safety-Kleen Oil |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 168,038 | 77,634 | 447,030 | 244,240
Operating segments | Safety-Kleen Sustainability Solutions | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 185,096 | 112,785 | 504,302 | 340,226
Operating segments | Safety-Kleen Sustainability Solutions | Canada |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 22,493 | 14,798 | 61,710 | 38,018
Corporate, non-Segment |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 59 | 72 | 217 | 218
Corporate, non-Segment | Technical Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Corporate, non-Segment | Field and Emergency Response Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Corporate, non-Segment | Industrial Services and Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 59 | 72 | 217 | 218
Corporate, non-Segment | Safety-Kleen Environmental Services |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Corporate, non-Segment | Safety-Kleen Oil |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 0 | 0 | 0 | 0
Corporate, non-Segment | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | 59 | (186) | 217 | (648)
Corporate, non-Segment | Canada |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenues | $ 0 | $ 258 | $ 0 | $ 866

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 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 6: 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=123351226&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599 Reference 10: 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=123351226&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + 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_EnvironmentalServicesSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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