{
 "instance": {
  "lmb-20210930.htm": {
   "axisCustom": 2,
   "axisStandard": 23,
   "contextCount": 278,
   "dts": {
    "calculationLink": {
     "local": [
      "lmb-20210930_cal.xml"
     ]
    },
    "definitionLink": {
     "local": [
      "lmb-20210930_def.xml"
     ]
    },
    "inline": {
     "local": [
      "lmb-20210930.htm"
     ]
    },
    "labelLink": {
     "local": [
      "lmb-20210930_lab.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "lmb-20210930_pre.xml"
     ]
    },
    "schema": {
     "local": [
      "lmb-20210930.xsd"
     ],
     "remote": [
      "https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd",
      "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xl-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xlink-2003-12-31.xsd",
      "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd",
      "https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "http://www.xbrl.org/2006/ref-2006-02-27.xsd",
      "https://xbrl.fasb.org/srt/2021/elts/srt-types-2021-01-31.xsd",
      "https://xbrl.sec.gov/country/2021/country-2021.xsd",
      "https://xbrl.fasb.org/srt/2021/elts/srt-roles-2021-01-31.xsd",
      "https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd",
      "https://xbrl.fasb.org/us-gaap/2021/elts/us-types-2021-01-31.xsd",
      "https://xbrl.fasb.org/us-gaap/2021/elts/us-roles-2021-01-31.xsd",
      "https://xbrl.sec.gov/dei/2021/dei-2021.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd"
     ]
    }
   },
   "elementCount": 510,
   "entityCount": 1,
   "hidden": {
    "http://fasb.org/us-gaap/2021-01-31": 10,
    "http://xbrl.sec.gov/dei/2021": 5,
    "total": 15
   },
   "keyCustom": 58,
   "keyStandard": 331,
   "memberCustom": 41,
   "memberStandard": 28,
   "nsprefix": "lmb",
   "nsuri": "http://www.limbachinc.com/20210930",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "document",
     "isDefault": "true",
     "longName": "0001001 - Document - Cover",
     "role": "http://www.limbachinc.com/role/Cover",
     "shortName": "Cover",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R10": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2111104 - Disclosure - Goodwill and Intangibles",
     "role": "http://www.limbachinc.com/role/GoodwillandIntangibles",
     "shortName": "Goodwill and Intangibles",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R11": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2115105 - Disclosure - Debt",
     "role": "http://www.limbachinc.com/role/Debt",
     "shortName": "Debt",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R12": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2123106 - Disclosure - Equity",
     "role": "http://www.limbachinc.com/role/Equity",
     "shortName": "Equity",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R13": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueDisclosuresTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2127107 - Disclosure - Fair Value Measurements",
     "role": "http://www.limbachinc.com/role/FairValueMeasurements",
     "shortName": "Fair Value Measurements",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueDisclosuresTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R14": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2129108 - Disclosure - Earnings per Share",
     "role": "http://www.limbachinc.com/role/EarningsperShare",
     "shortName": "Earnings per Share",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R15": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:IncomeTaxDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2133109 - Disclosure - Income Taxes",
     "role": "http://www.limbachinc.com/role/IncomeTaxes",
     "shortName": "Income Taxes",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:IncomeTaxDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R16": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SegmentReportingDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2135110 - Disclosure - Operating Segments",
     "role": "http://www.limbachinc.com/role/OperatingSegments",
     "shortName": "Operating Segments",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SegmentReportingDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R17": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LesseeOperatingLeasesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2139111 - Disclosure - Leases",
     "role": "http://www.limbachinc.com/role/Leases",
     "shortName": "Leases",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LesseeOperatingLeasesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R18": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2146112 - Disclosure - Commitments and Contingencies",
     "role": "http://www.limbachinc.com/role/CommitmentsandContingencies",
     "shortName": "Commitments and Contingencies",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R19": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2150113 - Disclosure - Management Incentive Plans",
     "role": "http://www.limbachinc.com/role/ManagementIncentivePlans",
     "shortName": "Management Incentive Plans",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R2": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:Cash",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1001002 - Statement - Condensed Consolidated Balance Sheets",
     "role": "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets",
     "shortName": "Condensed Consolidated Balance Sheets",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:Cash",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R20": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2204201 - Disclosure - Significant Accounting Policies (Policies)",
     "role": "http://www.limbachinc.com/role/SignificantAccountingPoliciesPolicies",
     "shortName": "Significant Accounting Policies (Policies)",
     "subGroupType": "policies",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R21": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2306301 - Disclosure - Revenue from Contracts with Customers (Tables)",
     "role": "http://www.limbachinc.com/role/RevenuefromContractswithCustomersTables",
     "shortName": "Revenue from Contracts with Customers (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R22": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2312302 - Disclosure - Goodwill and Intangibles (Tables)",
     "role": "http://www.limbachinc.com/role/GoodwillandIntangiblesTables",
     "shortName": "Goodwill and Intangibles (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R23": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDebtTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2316303 - Disclosure - Debt (Tables)",
     "role": "http://www.limbachinc.com/role/DebtTables",
     "shortName": "Debt (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDebtTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R24": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2324304 - Disclosure - Equity (Tables)",
     "role": "http://www.limbachinc.com/role/EquityTables",
     "shortName": "Equity (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R25": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2330305 - Disclosure - Earnings per Share (Tables)",
     "role": "http://www.limbachinc.com/role/EarningsperShareTables",
     "shortName": "Earnings per Share (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R26": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2336306 - Disclosure - Operating Segments (Tables)",
     "role": "http://www.limbachinc.com/role/OperatingSegmentsTables",
     "shortName": "Operating Segments (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R27": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "lmb:AssetsAndLiabilitiesLesseeTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2340307 - Disclosure - Leases (Tables)",
     "role": "http://www.limbachinc.com/role/LeasesTables",
     "shortName": "Leases (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "lmb:AssetsAndLiabilitiesLesseeTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R28": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2347308 - Disclosure - Commitments and Contingencies (Tables)",
     "role": "http://www.limbachinc.com/role/CommitmentsandContingenciesTables",
     "shortName": "Commitments and Contingencies (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R29": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "icb084489834e45f3b2c722f8381f582c_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2351309 - Disclosure - Management Incentive Plans (Tables)",
     "role": "http://www.limbachinc.com/role/ManagementIncentivePlansTables",
     "shortName": "Management Incentive Plans (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "icb084489834e45f3b2c722f8381f582c_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R3": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1002003 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)",
     "role": "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheetsParenthetical",
     "shortName": "Condensed Consolidated Balance Sheets (Parenthetical)",
     "subGroupType": "parenthetical",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R30": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:NumberOfOperatingSegments",
      "reportCount": 1,
      "unitRef": "segment",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2402401 - Disclosure - Business and Organization (Details)",
     "role": "http://www.limbachinc.com/role/BusinessandOrganizationDetails",
     "shortName": "Business and Organization (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "lang": "en-US",
      "name": "lmb:ServicePeriod",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R31": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "lmb:ContractWithCustomerAssetNetCurrentCostsAndEstimatedEarningsInExcessOfBillingsOnContracts",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2407402 - Disclosure - Revenue from Contracts with Customers - Components of Contract Asset and Liability Balances (Details)",
     "role": "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails",
     "shortName": "Revenue from Contracts with Customers - Components of Contract Asset and Liability Balances (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "lmb:ContractWithCustomerAssetNetCurrentCostsAndEstimatedEarningsInExcessOfBillingsOnContracts",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R32": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenuePerformanceObligationDescriptionOfTiming",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2408403 - Disclosure - Revenue from Contracts with Customers - Narrative (Details)",
     "role": "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails",
     "shortName": "Revenue from Contracts with Customers - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenuePerformanceObligationDescriptionOfTiming",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R33": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "lmb:ScheduleOfContractsInProgressTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "lmb:RevenueEarnedOnUncompletedContracts",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2409404 - Disclosure - Revenue from Contracts with Customers - Contracts In Progress (Details)",
     "role": "http://www.limbachinc.com/role/RevenuefromContractswithCustomersContractsInProgressDetails",
     "shortName": "Revenue from Contracts with Customers - Contracts In Progress (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "lmb:ScheduleOfContractsInProgressTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "lmb:RevenueEarnedOnUncompletedContracts",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R34": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i24d4b2aec53347b0a0cbf62c8a649e17_I20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2410405 - Disclosure - Revenue from Contracts with Customers - Remaining Performance Obligations (Details)",
     "role": "http://www.limbachinc.com/role/RevenuefromContractswithCustomersRemainingPerformanceObligationsDetails",
     "shortName": "Revenue from Contracts with Customers - Remaining Performance Obligations (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i24d4b2aec53347b0a0cbf62c8a649e17_I20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R35": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:Goodwill",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2413406 - Disclosure - Goodwill and Intangibles - Narrative (Details)",
     "role": "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails",
     "shortName": "Goodwill and Intangibles - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:ImpairmentOfIntangibleAssetsExcludingGoodwill",
       "us-gaap:GoodwillImpairmentLoss",
       "us-gaap:ImpairmentOfIntangibleAssetsExcludingGoodwill",
       "us-gaap:ImpairmentOfIntangibleAssetsExcludingGoodwill",
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ib992ba500c7743d88e8fbb05906e5c50_D20210701-20210930",
      "decimals": "INF",
      "lang": "en-US",
      "name": "us-gaap:GoodwillImpairmentLoss",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R36": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FiniteLivedIntangibleAssetsGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2414407 - Disclosure - Goodwill and Intangibles - Intangible Assets (Details)",
     "role": "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails",
     "shortName": "Goodwill and Intangibles - Intangible Assets (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FiniteLivedIntangibleAssetsGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R37": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfDebtTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FinanceLeaseLiability",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2417408 - Disclosure - Debt - Long-Term Debt (Details)",
     "role": "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
     "shortName": "Debt - Long-Term Debt (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfDebtTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3ba89c54c35a4433a9fdc3147a3f425f_I20201231",
      "decimals": "-3",
      "lang": "en-US",
      "name": "lmb:LongTermDebtGrossAndLeaseObligation",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R38": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i0a78ac84ff4e4e628113658cc0c49ca4_I20190412",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtInstrumentFaceAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2418409 - Disclosure - Debt - 2019 Refinancing Agreement - 2019 Term Loans (Details)",
     "role": "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
     "shortName": "Debt - 2019 Refinancing Agreement - 2019 Term Loans (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i0a78ac84ff4e4e628113658cc0c49ca4_I20190412",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtInstrumentFaceAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R39": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i553977522c944f988162234cd70323ff_I20190412",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2419410 - Disclosure - Debt - 2019 Refinancing Agreement - CB Warrants (Details)",
     "role": "http://www.limbachinc.com/role/Debt2019RefinancingAgreementCBWarrantsDetails",
     "shortName": "Debt - 2019 Refinancing Agreement - CB Warrants (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i553977522c944f988162234cd70323ff_I20190412",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R4": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "ix:continuation",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ib992ba500c7743d88e8fbb05906e5c50_D20210701-20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:Revenues",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1003004 - Statement - Condensed Consolidated Statements of Operations",
     "role": "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
     "shortName": "Condensed Consolidated Statements of Operations",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ib992ba500c7743d88e8fbb05906e5c50_D20210701-20210930",
      "decimals": "-3",
      "lang": "en-US",
      "name": "us-gaap:CostOfRevenue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R40": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i5d3113904f614aec827dbc3338059c99_I20210224",
      "decimals": "4",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtInstrumentInterestRateEffectivePercentage",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2420411 - Disclosure - Debt - 2019 ABL Credit Agreement (Details)",
     "role": "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
     "shortName": "Debt - 2019 ABL Credit Agreement (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i5d3113904f614aec827dbc3338059c99_I20210224",
      "decimals": "4",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtInstrumentInterestRateEffectivePercentage",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R41": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "icb59007573614cee86e9737d8d92e758_D20210224-20210224",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "lmb:DebtInstrumentCovenantComplianceAnnualAggregateAmountOfUnfinancedCapitalExpenditures",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2421412 - Disclosure - Debt - Wintrust Term and Revolving Loans (Details)",
     "role": "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails",
     "shortName": "Debt - Wintrust Term and Revolving Loans (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "icb59007573614cee86e9737d8d92e758_D20210224-20210224",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "lmb:DebtInstrumentCovenantComplianceAnnualAggregateAmountOfUnfinancedCapitalExpenditures",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R42": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "lmb:SeniorLeverageRatioCovenantTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i581ad66f20a941bb81f6f692c2c1a4ef_D20210101-20210930",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "lmb:SeniorLeverageRatio",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2422413 - Disclosure - Debt - Additional Margin and Commitment Fees Payable (Details)",
     "role": "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails",
     "shortName": "Debt - Additional Margin and Commitment Fees Payable (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "lmb:SeniorLeverageRatioCovenantTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i581ad66f20a941bb81f6f692c2c1a4ef_D20210101-20210930",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "lmb:SeniorLeverageRatio",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R43": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommonStockSharesAuthorized",
      "reportCount": 1,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2425414 - Disclosure - Equity - Narrative (Details)",
     "role": "http://www.limbachinc.com/role/EquityNarrativeDetails",
     "shortName": "Equity - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "INF",
      "lang": "en-US",
      "name": "us-gaap:PreferredStockSharesAuthorized",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R44": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ClassOfWarrantOrRightOutstanding",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2426415 - Disclosure - Equity - Outstanding Warrants (Details)",
     "role": "http://www.limbachinc.com/role/EquityOutstandingWarrantsDetails",
     "shortName": "Equity - Outstanding Warrants (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ClassOfWarrantOrRightOutstanding",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R45": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ib992ba500c7743d88e8fbb05906e5c50_D20210701-20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueAdjustmentOfWarrants",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2428416 - Disclosure - Fair Value Measurements (Details)",
     "role": "http://www.limbachinc.com/role/FairValueMeasurementsDetails",
     "shortName": "Fair Value Measurements (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i229f649531f54332894937d805d52fda_D20210101-20210224",
      "decimals": "-5",
      "lang": "en-US",
      "name": "us-gaap:FairValueAdjustmentOfWarrants",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R46": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ib992ba500c7743d88e8fbb05906e5c50_D20210701-20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2431417 - Disclosure - Earnings per Share - Schedule of Earnings Per Share, Basic and Diluted (Details)",
     "role": "http://www.limbachinc.com/role/EarningsperShareScheduleofEarningsPerShareBasicandDilutedDetails",
     "shortName": "Earnings per Share - Schedule of Earnings Per Share, Basic and Diluted (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ib992ba500c7743d88e8fbb05906e5c50_D20210701-20210930",
      "decimals": "-3",
      "lang": "en-US",
      "name": "us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R47": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ib992ba500c7743d88e8fbb05906e5c50_D20210701-20210930",
      "decimals": "0",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2432418 - Disclosure - Earnings per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details)",
     "role": "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails",
     "shortName": "Earnings per Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ib992ba500c7743d88e8fbb05906e5c50_D20210701-20210930",
      "decimals": "0",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R48": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ib992ba500c7743d88e8fbb05906e5c50_D20210701-20210930",
      "decimals": "3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EffectiveIncomeTaxRateContinuingOperations",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2434419 - Disclosure - Income Taxes (Details)",
     "role": "http://www.limbachinc.com/role/IncomeTaxesDetails",
     "shortName": "Income Taxes (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ib992ba500c7743d88e8fbb05906e5c50_D20210701-20210930",
      "decimals": "3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EffectiveIncomeTaxRateContinuingOperations",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R49": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:NumberOfOperatingSegments",
      "reportCount": 1,
      "unitRef": "segment",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2437420 - Disclosure - Operating Segments - Narrative (Details)",
     "role": "http://www.limbachinc.com/role/OperatingSegmentsNarrativeDetails",
     "shortName": "Operating Segments - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i729463d324df492d85307412c9dac700_D20210101-20210930",
      "decimals": "INF",
      "lang": "en-US",
      "name": "us-gaap:NumberOfReportableSegments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "segment",
      "xsiNil": "false"
     }
    },
    "R5": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i8a712cd42f6b4e79a2fd977f4c876151_I20191231",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SharesOutstanding",
      "reportCount": 1,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1004005 - Statement - Condensed Consolidated Statements of Stockholders' Equity",
     "role": "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity",
     "shortName": "Condensed Consolidated Statements of Stockholders' Equity",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "icbecf0b6f9844cbab1ae753f3702966a_D20200101-20200331",
      "decimals": "-3",
      "lang": "en-US",
      "name": "us-gaap:AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationOtherLongtermIncentivePlansRequisiteServicePeriodRecognition",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R50": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "ix:continuation",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ib992ba500c7743d88e8fbb05906e5c50_D20210701-20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:Revenues",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2438421 - Disclosure - Operating Segments - Condensed Consolidated Segment Information (Details)",
     "role": "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails",
     "shortName": "Operating Segments - Condensed Consolidated Segment Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "ix:continuation",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ib992ba500c7743d88e8fbb05906e5c50_D20210701-20210930",
      "decimals": "-3",
      "lang": "en-US",
      "name": "us-gaap:NonoperatingIncomeExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R51": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OperatingLeaseRightOfUseAsset",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2441422 - Disclosure - Leases - Supplemental Balance Sheets Information (Details)",
     "role": "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails",
     "shortName": "Leases - Supplemental Balance Sheets Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "lmb:AssetsAndLiabilitiesLesseeTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "lang": "en-US",
      "name": "us-gaap:FinanceLeaseRightOfUseAsset",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R52": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:LeaseCostTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ib992ba500c7743d88e8fbb05906e5c50_D20210701-20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FinanceLeaseRightOfUseAssetAmortization",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2442423 - Disclosure - Leases - Summary of Lease Costs (Details)",
     "role": "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails",
     "shortName": "Leases - Summary of Lease Costs (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:LeaseCostTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ib992ba500c7743d88e8fbb05906e5c50_D20210701-20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FinanceLeaseRightOfUseAssetAmortization",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R53": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:FinanceLeaseLiabilityMaturityTableTextBlock",
       "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2443424 - Disclosure - Leases - Future Minimum Lease Commitment (Details)",
     "role": "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails",
     "shortName": "Leases - Future Minimum Lease Commitment (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:FinanceLeaseLiabilityMaturityTableTextBlock",
       "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R54": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2444425 - Disclosure - Leases - Summary of Lease Terms and Discount Rates (Details)",
     "role": "http://www.limbachinc.com/role/LeasesSummaryofLeaseTermsandDiscountRatesDetails",
     "shortName": "Leases - Summary of Lease Terms and Discount Rates (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R55": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "lmb:SupplementalCashFlowInformationRelatedToLeasesTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OperatingLeasePayments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2445426 - Disclosure - Leases - Supplemental Cash Flow Information (Details)",
     "role": "http://www.limbachinc.com/role/LeasesSupplementalCashFlowInformationDetails",
     "shortName": "Leases - Supplemental Cash Flow Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "lmb:SupplementalCashFlowInformationRelatedToLeasesTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OperatingLeasePayments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R56": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "lmb:PaymentToAcquireWorkersCompensationAndGeneralLiabilityInsurance",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2448427 - Disclosure - Commitments and Contingencies - Narrative (Details)",
     "role": "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails",
     "shortName": "Commitments and Contingencies - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "lmb:PaymentToAcquireWorkersCompensationAndGeneralLiabilityInsurance",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R57": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "ix:continuation",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:WorkersCompensationLiabilityCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2449428 - Disclosure - Commitments and Contingencies - Components of Self-Insurance Liability (Details)",
     "role": "http://www.limbachinc.com/role/CommitmentsandContingenciesComponentsofSelfInsuranceLiabilityDetails",
     "shortName": "Commitments and Contingencies - Components of Self-Insurance Liability (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "ix:continuation",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i3116aea08f1041acaf56cfe58b71bcfc_I20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:WorkersCompensationLiabilityCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R58": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ShareBasedCompensation",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2452429 - Disclosure - Management Incentive Plans - Narrative (Details)",
     "role": "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails",
     "shortName": "Management Incentive Plans - Narrative (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ifb43b09a1ac54c19954fb720701ff144_I20200904",
      "decimals": "-5",
      "lang": "en-US",
      "name": "us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R59": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "if4da0beb13f64b5b9d6ff857383d8a2c_I20201231",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2453430 - Disclosure - Management Incentive Plans - RSUs Activity (Details)",
     "role": "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails",
     "shortName": "Management Incentive Plans - RSUs Activity (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "if4da0beb13f64b5b9d6ff857383d8a2c_I20201231",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R6": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "ix:continuation",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": "-3",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1005006 - Statement - Condensed Consolidated Statements of Cash Flows",
     "role": "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
     "shortName": "Condensed Consolidated Statements of Cash Flows",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": "-3",
      "lang": "en-US",
      "name": "us-gaap:ProvisionForDoubtfulAccounts",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R60": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "ix:continuation",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i0f0cb0e91edd4e969f21edf684395506_I20201231",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2454431 - Disclosure - Management Incentive Plans - PRSUs Activity (Details)",
     "role": "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
     "shortName": "Management Incentive Plans - PRSUs Activity (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "ix:continuation",
       "div",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "i0f0cb0e91edd4e969f21edf684395506_I20201231",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R61": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "iaecae8e38f184b308240549bcdb7ba60_I20201231",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2455432 - Disclosure - Management Incentive Plans - MRSUs Activity (Details)",
     "role": "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
     "shortName": "Management Incentive Plans - MRSUs Activity (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock",
       "ix:continuation",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "iaecae8e38f184b308240549bcdb7ba60_I20201231",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R7": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2101101 - Disclosure - Business and Organization",
     "role": "http://www.limbachinc.com/role/BusinessandOrganization",
     "shortName": "Business and Organization",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R8": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SignificantAccountingPoliciesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2103102 - Disclosure - Significant Accounting Policies",
     "role": "http://www.limbachinc.com/role/SignificantAccountingPolicies",
     "shortName": "Significant Accounting Policies",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SignificantAccountingPoliciesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R9": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:RevenueFromContractWithCustomerPolicyTextBlock",
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueFromContractWithCustomerTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2105103 - Disclosure - Revenue from Contracts with Customers",
     "role": "http://www.limbachinc.com/role/RevenuefromContractswithCustomers",
     "shortName": "Revenue from Contracts with Customers",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:RevenueFromContractWithCustomerPolicyTextBlock",
       "span",
       "div",
       "body",
       "html"
      ],
      "baseRef": "lmb-20210930.htm",
      "contextRef": "ia056622ea83646db8b742c123be87d12_D20210101-20210930",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueFromContractWithCustomerTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    }
   },
   "segmentCount": 71,
   "tag": {
    "dei_AmendmentFlag": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.",
        "label": "Amendment Flag",
        "terseLabel": "Amendment Flag"
       }
      }
     },
     "localname": "AmendmentFlag",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_CityAreaCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Area code of city",
        "label": "City Area Code",
        "terseLabel": "City Area Code"
       }
      }
     },
     "localname": "CityAreaCode",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_CoverAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cover page.",
        "label": "Cover [Abstract]"
       }
      }
     },
     "localname": "CoverAbstract",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "xbrltype": "stringItemType"
    },
    "dei_CurrentFiscalYearEndDate": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "End date of current fiscal year in the format --MM-DD.",
        "label": "Current Fiscal Year End Date",
        "terseLabel": "Current Fiscal Year End Date"
       }
      }
     },
     "localname": "CurrentFiscalYearEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "gMonthDayItemType"
    },
    "dei_DocumentFiscalPeriodFocus": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fiscal period values are FY, Q1, Q2, and Q3.  1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.",
        "label": "Document Fiscal Period Focus",
        "terseLabel": "Document Fiscal Period Focus"
       }
      }
     },
     "localname": "DocumentFiscalPeriodFocus",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "fiscalPeriodItemType"
    },
    "dei_DocumentFiscalYearFocus": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "This is focus fiscal year of the document report in YYYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.",
        "label": "Document Fiscal Year Focus",
        "terseLabel": "Document Fiscal Year Focus"
       }
      }
     },
     "localname": "DocumentFiscalYearFocus",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "gYearItemType"
    },
    "dei_DocumentPeriodEndDate": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  The format of the date is YYYY-MM-DD.",
        "label": "Document Period End Date",
        "terseLabel": "Document Period End Date"
       }
      }
     },
     "localname": "DocumentPeriodEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "dateItemType"
    },
    "dei_DocumentQuarterlyReport": {
     "auth_ref": [
      "r489"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true only for a form used as an quarterly report.",
        "label": "Document Quarterly Report",
        "terseLabel": "Document Quarterly Report"
       }
      }
     },
     "localname": "DocumentQuarterlyReport",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_DocumentTransitionReport": {
     "auth_ref": [
      "r490"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true only for a form used as a transition report.",
        "label": "Document Transition Report",
        "terseLabel": "Document Transition Report"
       }
      }
     },
     "localname": "DocumentTransitionReport",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_DocumentType": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.",
        "label": "Document Type",
        "terseLabel": "Document Type"
       }
      }
     },
     "localname": "DocumentType",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "submissionTypeItemType"
    },
    "dei_EntityAddressAddressLine1": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Address Line 1 such as Attn, Building Name, Street Name",
        "label": "Entity Address, Address Line One",
        "terseLabel": "Entity Address, Address Line One"
       }
      }
     },
     "localname": "EntityAddressAddressLine1",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressAddressLine2": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Address Line 2 such as Street or Suite number",
        "label": "Entity Address, Address Line Two",
        "terseLabel": "Entity Address, Address Line Two"
       }
      }
     },
     "localname": "EntityAddressAddressLine2",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressCityOrTown": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the City or Town",
        "label": "Entity Address, City or Town",
        "terseLabel": "Entity Address, City or Town"
       }
      }
     },
     "localname": "EntityAddressCityOrTown",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressPostalZipCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Code for the postal or zip code",
        "label": "Entity Address, Postal Zip Code",
        "terseLabel": "Entity Address, Postal Zip Code"
       }
      }
     },
     "localname": "EntityAddressPostalZipCode",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressStateOrProvince": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the state or province.",
        "label": "Entity Address, State or Province",
        "terseLabel": "Entity Address, State or Province"
       }
      }
     },
     "localname": "EntityAddressStateOrProvince",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "stateOrProvinceItemType"
    },
    "dei_EntityCentralIndexKey": {
     "auth_ref": [
      "r491"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.",
        "label": "Entity Central Index Key",
        "terseLabel": "Entity Central Index Key"
       }
      }
     },
     "localname": "EntityCentralIndexKey",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "centralIndexKeyItemType"
    },
    "dei_EntityCommonStockSharesOutstanding": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.",
        "label": "Entity Common Stock, Shares Outstanding",
        "terseLabel": "Entity Common Stock, Shares Outstanding"
       }
      }
     },
     "localname": "EntityCommonStockSharesOutstanding",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "sharesItemType"
    },
    "dei_EntityCurrentReportingStatus": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.",
        "label": "Entity Current Reporting Status",
        "terseLabel": "Entity Current Reporting Status"
       }
      }
     },
     "localname": "EntityCurrentReportingStatus",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityEmergingGrowthCompany": {
     "auth_ref": [
      "r491"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate if registrant meets the emerging growth company criteria.",
        "label": "Entity Emerging Growth Company",
        "terseLabel": "Entity Emerging Growth Company"
       }
      }
     },
     "localname": "EntityEmergingGrowthCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityFileNumber": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.",
        "label": "Entity File Number",
        "terseLabel": "Entity File Number"
       }
      }
     },
     "localname": "EntityFileNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "fileNumberItemType"
    },
    "dei_EntityFilerCategory": {
     "auth_ref": [
      "r491"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.",
        "label": "Entity Filer Category",
        "terseLabel": "Entity Filer Category"
       }
      }
     },
     "localname": "EntityFilerCategory",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "filerCategoryItemType"
    },
    "dei_EntityIncorporationStateCountryCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Two-character EDGAR code representing the state or country of incorporation.",
        "label": "Entity Incorporation, State or Country Code",
        "terseLabel": "Entity Incorporation, State or Country Code"
       }
      }
     },
     "localname": "EntityIncorporationStateCountryCode",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "edgarStateCountryItemType"
    },
    "dei_EntityInteractiveDataCurrent": {
     "auth_ref": [
      "r492"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).",
        "label": "Entity Interactive Data Current",
        "terseLabel": "Entity Interactive Data Current"
       }
      }
     },
     "localname": "EntityInteractiveDataCurrent",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityRegistrantName": {
     "auth_ref": [
      "r491"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.",
        "label": "Entity Registrant Name",
        "terseLabel": "Entity Registrant Name"
       }
      }
     },
     "localname": "EntityRegistrantName",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityShellCompany": {
     "auth_ref": [
      "r491"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.",
        "label": "Entity Shell Company",
        "terseLabel": "Entity Shell Company"
       }
      }
     },
     "localname": "EntityShellCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntitySmallBusiness": {
     "auth_ref": [
      "r491"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicates that the company is a Smaller Reporting Company (SRC).",
        "label": "Entity Small Business",
        "terseLabel": "Entity Small Business"
       }
      }
     },
     "localname": "EntitySmallBusiness",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityTaxIdentificationNumber": {
     "auth_ref": [
      "r491"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.",
        "label": "Entity Tax Identification Number",
        "terseLabel": "Entity Tax Identification Number"
       }
      }
     },
     "localname": "EntityTaxIdentificationNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "employerIdItemType"
    },
    "dei_LocalPhoneNumber": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Local phone number for entity.",
        "label": "Local Phone Number",
        "terseLabel": "Local Phone Number"
       }
      }
     },
     "localname": "LocalPhoneNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r487"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Title of a 12(b) registered security.",
        "label": "Title of 12(b) Security",
        "terseLabel": "Title of 12(b) Security"
       }
      }
     },
     "localname": "Security12bTitle",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "securityTitleItemType"
    },
    "dei_SecurityExchangeName": {
     "auth_ref": [
      "r488"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the Exchange on which a security is registered.",
        "label": "Security Exchange Name",
        "terseLabel": "Security Exchange Name"
       }
      }
     },
     "localname": "SecurityExchangeName",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "edgarExchangeCodeItemType"
    },
    "dei_TradingSymbol": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Trading symbol of an instrument as listed on an exchange.",
        "label": "Trading Symbol",
        "terseLabel": "Trading Symbol"
       }
      }
     },
     "localname": "TradingSymbol",
     "nsuri": "http://xbrl.sec.gov/dei/2021",
     "presentation": [
      "http://www.limbachinc.com/role/Cover"
     ],
     "xbrltype": "tradingSymbolItemType"
    },
    "lmb_A2019ABLCreditAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "2019 ABL Credit Amendment",
        "label": "2019 ABL Credit Agreement [Member]",
        "terseLabel": "2019 Revolving Credit Facility",
        "verboseLabel": "2019 Refinancing Revolving Credit Facility"
       }
      }
     },
     "localname": "A2019ABLCreditAgreementMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_A2019EmployeeStockPurchasePlanMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "2019 Employee Stock Purchase Plan (\"the ESPP\")",
        "label": "2019 Employee Stock Purchase Plan [Member]",
        "terseLabel": "ESPP"
       }
      }
     },
     "localname": "A2019EmployeeStockPurchasePlanMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_AdditionalMergerWarrantsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Additional Merger Warrants [Member]",
        "terseLabel": "Additional Merger Warrants"
       }
      }
     },
     "localname": "AdditionalMergerWarrantsMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails",
      "http://www.limbachinc.com/role/EquityOutstandingWarrantsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_AssetsAndLiabilitiesLesseeTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Assets and Liabilities Lessee [Table Text Block]",
        "label": "Assets And Liabilities Lessee [Table Text Block]",
        "terseLabel": "Supplemental Balance Sheets Information"
       }
      }
     },
     "localname": "AssetsAndLiabilitiesLesseeTableTextBlock",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "lmb_BernardsBrosVsLimbachHoldingsIncMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Bernards Bros vs. Limbach Holdings, Inc. [Member]",
        "label": "Bernards Bros vs. Limbach Holdings, Inc. [Member]",
        "terseLabel": "Bernards Bros vs. Limbach Holdings, Inc."
       }
      }
     },
     "localname": "BernardsBrosVsLimbachHoldingsIncMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_BillingsInExcessOfBillingsAndEstimatedEarningsOnUncompletedContracts": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersContractsInProgressDetails": {
       "order": 2.0,
       "parentTag": "lmb_NetUnderOverbillingOnContracts",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Billings In Excess Of Billings And Estimated Earnings On Uncompleted Contracts",
        "label": "Billings In Excess Of Billings And Estimated Earnings On Uncompleted Contracts",
        "negatedTerseLabel": "Billings in excess of costs and estimated earnings"
       }
      }
     },
     "localname": "BillingsInExcessOfBillingsAndEstimatedEarningsOnUncompletedContracts",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersContractsInProgressDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_BillingsInExcessOfCostsAndEstimatedEarningsOnContracts": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_ContractWithCustomerLiabilityCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of liability attributable to billings in excess of costs under the percentage of completion contract accounting method representing the difference between contractually invoiced amounts and billings in excess of estimated earnings on contracts.",
        "label": "Billings In Excess Of Costs And Estimated Earnings On Contracts",
        "terseLabel": "Billings in excess of costs and estimated earnings"
       }
      }
     },
     "localname": "BillingsInExcessOfCostsAndEstimatedEarningsOnContracts",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_BillingsToDateOnContracts": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersContractsInProgressDetails_1": {
       "order": 2.0,
       "parentTag": "lmb_NetUnderOverbillingOnContracts",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of billings that were raised on the contracts to date during the period.",
        "label": "Billings To Date On Contracts",
        "negatedTerseLabel": "Less: Billings to date"
       }
      }
     },
     "localname": "BillingsToDateOnContracts",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersContractsInProgressDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsForHalfShare": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Exercise price for half share or half unit of warrants or rights outstanding.",
        "label": "Class of Warrant or Right, Exercise Price of Warrants or Rights For Half Share",
        "terseLabel": "Class of warrant or right, rights for half share (in usd per share)"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsForHalfShare",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EquityOutstandingWarrantsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "lmb_ClassOfWarrantRrRightExpired": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Class Of Warrant Rr Right, Expired",
        "label": "Class Of Warrant Rr Right, Expired",
        "terseLabel": "Warrants expired (in shares)"
       }
      }
     },
     "localname": "ClassOfWarrantRrRightExpired",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "lmb_ContractWithCustomerAssetNetCurrentCostsAndEstimatedEarningsInExcessOfBillingsOnContracts": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_ContractWithCustomerAssetNetCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Contract With Customer, Asset, Net, Current, Costs And Estimated Earnings In Excess Of Billings On Contracts",
        "label": "Contract With Customer, Asset, Net, Current, Costs And Estimated Earnings In Excess Of Billings On Contracts",
        "terseLabel": "Costs in excess of billings and estimated earnings"
       }
      }
     },
     "localname": "ContractWithCustomerAssetNetCurrentCostsAndEstimatedEarningsInExcessOfBillingsOnContracts",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_ContractWithCustomerAssetNetCurrentRetainageReceivable": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_ContractWithCustomerAssetNetCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Contract With Customer Asset, Net, Current, Retainage Receivable",
        "label": "Contract With Customer Asset, Net, Current, Retainage Receivable",
        "terseLabel": "Retainage receivable"
       }
      }
     },
     "localname": "ContractWithCustomerAssetNetCurrentRetainageReceivable",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_ContractWithCustomerChangeInContractEstimatesGrossProfitThresholdAmount": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Contract With Customer, Change In Contract Estimates, Gross Profit Threshold Amount",
        "label": "Contract With Customer, Change In Contract Estimates, Gross Profit Threshold Amount",
        "terseLabel": "Revision amount for gross profit impact on contract estimates (more than)"
       }
      }
     },
     "localname": "ContractWithCustomerChangeInContractEstimatesGrossProfitThresholdAmount",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_CostsInExcessOfBillingsAndEstimatedEarningsOnUncompletedContracts": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersContractsInProgressDetails": {
       "order": 1.0,
       "parentTag": "lmb_NetUnderOverbillingOnContracts",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Costs In Excess Of Billings And Estimated Earnings On Uncompleted Contracts",
        "label": "Costs In Excess Of Billings And Estimated Earnings On Uncompleted Contracts",
        "terseLabel": "Costs in excess of billings and estimated earnings"
       }
      }
     },
     "localname": "CostsInExcessOfBillingsAndEstimatedEarningsOnUncompletedContracts",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersContractsInProgressDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_DebtInstrumentBasisSpreadOnVariableRateAdjustment": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Basis Spread On Variable Rate, Adjustment",
        "label": "Debt Instrument, Basis Spread On Variable Rate, Adjustment",
        "terseLabel": "Step-down adjustment on basis spread on variable rate"
       }
      }
     },
     "localname": "DebtInstrumentBasisSpreadOnVariableRateAdjustment",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "lmb_DebtInstrumentCovenantComplianceAnnualAggregateAmountOfUnfinancedCapitalExpenditures": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Covenant Compliance, Annual Aggregate Amount Of Unfinanced Capital Expenditures",
        "label": "Debt Instrument, Covenant Compliance, Annual Aggregate Amount Of Unfinanced Capital Expenditures",
        "terseLabel": "Aggregate amount of unfinanced capital expenditures during any fiscal year"
       }
      }
     },
     "localname": "DebtInstrumentCovenantComplianceAnnualAggregateAmountOfUnfinancedCapitalExpenditures",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_DebtInstrumentCovenantComplianceMaximumAnnualPercentageOfUnfinancedCapitalExpenditures": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Covenant Compliance, Maximum Annual Percentage Of Unfinanced Capital Expenditures",
        "label": "Debt Instrument, Covenant Compliance, Maximum Annual Percentage Of Unfinanced Capital Expenditures",
        "terseLabel": "Limit annual percentage of unfinanced capital expenditures"
       }
      }
     },
     "localname": "DebtInstrumentCovenantComplianceMaximumAnnualPercentageOfUnfinancedCapitalExpenditures",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "lmb_DebtInstrumentCovenantComplianceNumber": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Covenant Compliance, Number",
        "label": "Debt Instrument, Covenant Compliance, Number",
        "terseLabel": "Number of financial covenants"
       }
      }
     },
     "localname": "DebtInstrumentCovenantComplianceNumber",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "decimalItemType"
    },
    "lmb_DebtInstrumentCovenantCompliancePeriodOneMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Covenant Compliance, Period One",
        "label": "Debt Instrument, Covenant Compliance, Period One [Member]",
        "terseLabel": "Through December 31, 2021"
       }
      }
     },
     "localname": "DebtInstrumentCovenantCompliancePeriodOneMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_DebtInstrumentCovenantCompliancePeriodThreeMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Covenant Compliance, Period Three",
        "label": "Debt Instrument, Covenant Compliance, Period Three [Member]",
        "terseLabel": "As of the last day of each fiscal quarter commencing with the fiscal quarter ending March 31, 2021"
       }
      }
     },
     "localname": "DebtInstrumentCovenantCompliancePeriodThreeMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_DebtInstrumentCovenantCompliancePeriodTwoMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Covenant Compliance, Period Two",
        "label": "Debt Instrument, Covenant Compliance, Period Two [Member]",
        "terseLabel": "All times thereafter"
       }
      }
     },
     "localname": "DebtInstrumentCovenantCompliancePeriodTwoMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_DebtInstrumentMakeWholePremiumOnPrepaymentsPeriod": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Make-whole Premium On Prepayments Period",
        "label": "Debt Instrument, Make-whole Premium On Prepayments Period",
        "terseLabel": "Make-whole premium prepayment period"
       }
      }
     },
     "localname": "DebtInstrumentMakeWholePremiumOnPrepaymentsPeriod",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "lmb_DebtInstrumentMakeWholeProvisionPeriodToPayInterestMinimum": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt Instrument, Make-whole Provision Period To Pay Interest, Minimum",
        "label": "Debt Instrument, Make-whole Provision Period To Pay Interest, Minimum",
        "terseLabel": "Make-whole provision applicable to interest period"
       }
      }
     },
     "localname": "DebtInstrumentMakeWholeProvisionPeriodToPayInterestMinimum",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "lmb_EasternPennsylvaniaRegionProjectMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Eastern Pennsylvania Region Project",
        "label": "Eastern Pennsylvania Region Project [Member]",
        "terseLabel": "Eastern Pennsylvania Region Project"
       }
      }
     },
     "localname": "EasternPennsylvaniaRegionProjectMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_FavorableLeaseholdInterestsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Favorable Leasehold Interests [Member]",
        "terseLabel": "Favorable Leasehold Interests"
       }
      }
     },
     "localname": "FavorableLeaseholdInterestsMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_FifteenDollarExercisePriceSponsorWarrantsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fifteen Dollar Exercise Price Sponsor Warrants [Member]",
        "terseLabel": "$15 Exercise Price Sponsor Warrants"
       }
      }
     },
     "localname": "FifteenDollarExercisePriceSponsorWarrantsMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails",
      "http://www.limbachinc.com/role/EquityOutstandingWarrantsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_FinanceLeaseLiabilityToBePaidAfterYearFour": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Finance Lease, Liability, To Be Paid, After Year Four",
        "label": "Finance Lease, Liability, To Be Paid, After Year Four",
        "terseLabel": "Thereafter"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityToBePaidAfterYearFour",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_FinanceLeaseMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Finance Lease [Member]",
        "label": "Finance Lease [Member]",
        "terseLabel": "Finance Lease"
       }
      }
     },
     "localname": "FinanceLeaseMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_FinanceLeasePrincipalAndDisposalsPayments": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Finance Lease, Principal And Disposals Payments",
        "label": "Finance Lease, Principal And Disposals Payments",
        "terseLabel": "Financing cash flows from finance leases"
       }
      }
     },
     "localname": "FinanceLeasePrincipalAndDisposalsPayments",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_FloridaRegionProjectMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Florida Region Project",
        "label": "Florida Region Project [Member]",
        "terseLabel": "Florida Region Project"
       }
      }
     },
     "localname": "FloridaRegionProjectMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_GeneralContractorConstructionManagerRelationshipsSegmentMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "General Contractor (Construction Manager) Relationships Segment",
        "label": "General Contractor (Construction Manager) Relationships Segment [Member]",
        "verboseLabel": "GCR"
       }
      }
     },
     "localname": "GeneralContractorConstructionManagerRelationshipsSegmentMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails",
      "http://www.limbachinc.com/role/OperatingSegmentsNarrativeDetails",
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails",
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersRemainingPerformanceObligationsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_GrossProfitWriteDown": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "It represents gross profit write down.",
        "label": "Gross Profit Write Down",
        "terseLabel": "Gross profit write downs"
       }
      }
     },
     "localname": "GrossProfitWriteDown",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_GrossProfitWriteUps": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "It represents gross profit write ups.",
        "label": "Gross Profit Write Ups",
        "terseLabel": "Gross profit write ups"
       }
      }
     },
     "localname": "GrossProfitWriteUps",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_IncreaseDecreaseInBillingsInExcessOfCostsAndEstimatedEarningsOnContracts": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_IncreaseDecreaseInContractWithCustomerLiability",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Increase (Decrease) In Billings In Excess Of Costs And Estimated Earnings On Contracts",
        "label": "Increase (Decrease) In Billings In Excess Of Costs And Estimated Earnings On Contracts",
        "terseLabel": "Change in billings in excess of costs and estimated earnings"
       }
      }
     },
     "localname": "IncreaseDecreaseInBillingsInExcessOfCostsAndEstimatedEarningsOnContracts",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_IncreaseDecreaseInContractReceivableRetainage": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_IncreaseDecreaseInContractWithCustomerAsset",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Increase (Decrease) In Contract Receivable Retainage",
        "label": "Increase (Decrease) In Contract Receivable Retainage",
        "terseLabel": "Change in retainage receivable"
       }
      }
     },
     "localname": "IncreaseDecreaseInContractReceivableRetainage",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_IncreaseDecreaseInCostsAndEstimatedEarningsInExcessOfBillingsOnContracts": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_IncreaseDecreaseInContractWithCustomerAsset",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Increase (Decrease) In Costs and Estimated Earnings In Excess Of Billings On Contracts",
        "label": "Increase (Decrease) In Costs and Estimated Earnings In Excess Of Billings On Contracts",
        "terseLabel": "Change in costs in excess of billings and estimated earnings"
       }
      }
     },
     "localname": "IncreaseDecreaseInCostsAndEstimatedEarningsInExcessOfBillingsOnContracts",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_IncreaseDecreaseInOperatingLeaseLiabilities": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 18.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Increase (Decrease) In Operating Lease Liabilities",
        "label": "Increase (Decrease) In Operating Lease Liabilities",
        "terseLabel": "Operating lease liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInOperatingLeaseLiabilities",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_IncreaseDecreaseInProvisionForLossOnContracts": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_IncreaseDecreaseInContractWithCustomerLiability",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Increase (Decrease) In Provision For Loss On Contracts",
        "label": "Increase (Decrease) In Provision For Loss On Contracts",
        "terseLabel": "Change in provisions for losses"
       }
      }
     },
     "localname": "IncreaseDecreaseInProvisionForLossOnContracts",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_IndefiniteLivedIntangibleAssetsAmountOfFairValueInExcessOfCarryingAmount": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indefinite-Lived Intangible Assets, Amount Of Fair Value In Excess Of Carrying Amount",
        "label": "Indefinite-Lived Intangible Assets, Amount Of Fair Value In Excess Of Carrying Amount",
        "terseLabel": "Amount of excess of fair value over carrying amount of indefinite-lived intangible assets"
       }
      }
     },
     "localname": "IndefiniteLivedIntangibleAssetsAmountOfFairValueInExcessOfCarryingAmount",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_IndefiniteLivedIntangibleAssetsPercentageOfFairValueInExcessOfCarryingAmount": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indefinite-Lived Intangible Assets, Percentage Of Fair Value In Excess Of Carrying Amount",
        "label": "Indefinite-Lived Intangible Assets, Percentage Of Fair Value In Excess Of Carrying Amount",
        "terseLabel": "Percentage of fair value in excess of carrying amount of indefinite-lived intangibles assets"
       }
      }
     },
     "localname": "IndefiniteLivedIntangibleAssetsPercentageOfFairValueInExcessOfCarryingAmount",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails"
     ],
     "xbrltype": "pureItemType"
    },
    "lmb_IntangibleAssetsAmortizedExcludingGoodwill": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of Intangible Assets Amortized Excluding Goodwill",
        "label": "Intangible Assets Amortized Excluding Goodwill",
        "totalLabel": "Net intangible assets, excluding goodwill"
       }
      }
     },
     "localname": "IntangibleAssetsAmortizedExcludingGoodwill",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_LAExcavatingInc.vs.LimbachCompanyLPMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "LA Excavating, Inc. vs. Limbach Company LP [Member]",
        "label": "LA Excavating, Inc. vs. Limbach Company LP [Member]",
        "terseLabel": "LA Excavating, Inc. vs. Limbach Company LP"
       }
      }
     },
     "localname": "LAExcavatingInc.vs.LimbachCompanyLPMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_LanzoTrenchlessTechnologiesvs.LimbachCompanyLLCMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Lanzo Trenchless Technologies vs. Limbach Company LLC [Member]",
        "label": "Lanzo Trenchless Technologies vs. Limbach Company LLC [Member]",
        "terseLabel": "Lanzo Trenchless Technologies vs. Limbach Company LLC"
       }
      }
     },
     "localname": "LanzoTrenchlessTechnologiesvs.LimbachCompanyLLCMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_LeaseLiability": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Lease, Liability",
        "label": "Lease, Liability",
        "totalLabel": "Total lease liabilities"
       }
      }
     },
     "localname": "LeaseLiability",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_LeaseRightOfUseAsset": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Lease, Right-Of-Use Asset",
        "label": "Lease, Right-Of-Use Asset",
        "totalLabel": "Lease right-of-use assets"
       }
      }
     },
     "localname": "LeaseRightOfUseAsset",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_LeaseTypeAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Lease Type [Axis]",
        "label": "Lease Type [Axis]",
        "terseLabel": "Lease Type [Axis]"
       }
      }
     },
     "localname": "LeaseTypeAxis",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "lmb_LeaseTypeDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "[Domain] for Lease Type [Axis]",
        "label": "Lease Type [Domain]",
        "terseLabel": "Lease Type [Domain]"
       }
      }
     },
     "localname": "LeaseTypeDomain",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Lessee, Operating Lease, Liability, To Be Paid, After Year Four",
        "label": "Lessee, Operating Lease, Liability, To Be Paid, After Year Four",
        "terseLabel": "Thereafter"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityToBePaidAfterYearFour",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_LevelOneMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Level One [Member]",
        "terseLabel": "Level I"
       }
      }
     },
     "localname": "LevelOneMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_LevelTwoMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Level Two [Member]",
        "terseLabel": "Level II"
       }
      }
     },
     "localname": "LevelTwoMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_LeverageRatio": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "It represents percentage of leverage ratio",
        "label": "Leverage Ratio",
        "terseLabel": "Leverage ratio"
       }
      }
     },
     "localname": "LeverageRatio",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "lmb_LongTermDebtGrossAndLeaseObligation": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Long-Term Debt, Gross And Lease Obligation",
        "label": "Long-Term Debt, Gross And Lease Obligation",
        "totalLabel": "Total debt"
       }
      }
     },
     "localname": "LongTermDebtGrossAndLeaseObligation",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_MarketBasedAwardsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Market Based Awards [Member]",
        "terseLabel": "MRSUs"
       }
      }
     },
     "localname": "MarketBasedAwardsMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansTables"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_MergerWarrantsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Merger Warrants [Member]",
        "terseLabel": "Merger Warrants"
       }
      }
     },
     "localname": "MergerWarrantsMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EquityOutstandingWarrantsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_MichiganRegionProjectMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Michigan Region Project",
        "label": "Michigan Region Project [Member]",
        "terseLabel": "Michigan Region Project"
       }
      }
     },
     "localname": "MichiganRegionProjectMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_MidAtlanticRegionProjectMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Mid-Atlantic Region Project",
        "label": "Mid-Atlantic Region Project [Member]",
        "terseLabel": "Mid-Atlantic Region Project"
       }
      }
     },
     "localname": "MidAtlanticRegionProjectMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_NetAmountOfUnresolvedChangeOrdersAndClaims": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "This element represents the net amount of unresolved change orders and claims.",
        "label": "Net Amount Of Unresolved Change Orders And Claims",
        "terseLabel": "Net realizable value of unapproved orders"
       }
      }
     },
     "localname": "NetAmountOfUnresolvedChangeOrdersAndClaims",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_NetUnderOverbillingOnContracts": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersContractsInProgressDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersContractsInProgressDetails_1": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of Asset or liability for net Under Over billings on the contracts.",
        "label": "Net Under Over billing On Contracts",
        "negatedTotalLabel": "Net underbilling (overbilling)"
       }
      }
     },
     "localname": "NetUnderOverbillingOnContracts",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersContractsInProgressDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_NewEnglandRegionProjectMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "New England Region Project",
        "label": "New England Region Project [Member]",
        "terseLabel": "New England Region Project"
       }
      }
     },
     "localname": "NewEnglandRegionProjectMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_NoncashOperatingLeaseExpense": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Noncash Operating Lease Expense",
        "label": "Noncash Operating Lease Expense",
        "terseLabel": "Noncash operating lease expense"
       }
      }
     },
     "localname": "NoncashOperatingLeaseExpense",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_NumberDistinctApproachesToCustomerBase": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number Distinct Approaches To Customer Base",
        "label": "Number Distinct Approaches To Customer Base",
        "terseLabel": "Number distinct approaches to customer base"
       }
      }
     },
     "localname": "NumberDistinctApproachesToCustomerBase",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/BusinessandOrganizationDetails",
      "http://www.limbachinc.com/role/OperatingSegmentsNarrativeDetails"
     ],
     "xbrltype": "decimalItemType"
    },
    "lmb_NumberOfProjectsSubjectToGrossProfitWriteDown": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of Projects Subject to Gross Profit Write Down",
        "label": "Number of Projects Subject to Gross Profit Write Down",
        "terseLabel": "Number of projects subject to gross profit write downs"
       }
      }
     },
     "localname": "NumberOfProjectsSubjectToGrossProfitWriteDown",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "lmb_NumberOfProjectsSubjectToGrossProfitWriteUps": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of Projects Subject to Gross Profit Write Ups",
        "label": "Number of Projects Subject to Gross Profit Write Ups",
        "terseLabel": "Number of projects subject to gross profit write ups"
       }
      }
     },
     "localname": "NumberOfProjectsSubjectToGrossProfitWriteUps",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "lmb_OhioRegionProjectMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Ohio Region Project",
        "label": "Ohio Region Project [Member]",
        "terseLabel": "Ohio Region Project"
       }
      }
     },
     "localname": "OhioRegionProjectMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_OmnibusIncentivePlan2019Member": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Omnibus Incentive Plan 2019 [Member]",
        "label": "Omnibus Incentive Plan 2019 [Member]",
        "terseLabel": "Omnibus Incentive Plan 2019"
       }
      }
     },
     "localname": "OmnibusIncentivePlan2019Member",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_OperatingLeaseMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Operating Lease [Member]",
        "label": "Operating Lease [Member]",
        "terseLabel": "Operating Lease"
       }
      }
     },
     "localname": "OperatingLeaseMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_OperatingLeaseRightOfUseAssetAccumulatedAmortization": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Operating Lease, Right-Of-Use Asset, Accumulated Amortization",
        "label": "Operating Lease, Right-Of-Use Asset, Accumulated Amortization",
        "terseLabel": "Operating lease, accumulated amortization"
       }
      }
     },
     "localname": "OperatingLeaseRightOfUseAssetAccumulatedAmortization",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_OutoftheMoneyWarrantsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Out-of-the Money Warrants",
        "label": "Out-of-the Money Warrants [Member]",
        "terseLabel": "Out-of-the money warrants"
       }
      }
     },
     "localname": "OutoftheMoneyWarrantsMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_OwnerDirectRelationshipsReportingUnitMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Owner Direct Relationships Reporting Unit",
        "label": "Owner Direct Relationships Reporting Unit [Member]",
        "terseLabel": "OD Reporting Unit"
       }
      }
     },
     "localname": "OwnerDirectRelationshipsReportingUnitMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_OwnerDirectRelationshipsSegmentMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Owner Direct Relationships Segment",
        "label": "Owner Direct Relationships Segment [Member]",
        "terseLabel": "ODR"
       }
      }
     },
     "localname": "OwnerDirectRelationshipsSegmentMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails",
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails",
      "http://www.limbachinc.com/role/OperatingSegmentsNarrativeDetails",
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails",
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersRemainingPerformanceObligationsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_PaymentToAcquireWorkersCompensationAndGeneralLiabilityInsurance": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "This element represent that amount of workers' compensation and general liability insurance purchased by company.",
        "label": "Payment To Acquire Workers' Compensation And General Liability Insurance",
        "terseLabel": "Payment to acquire workers' compensation and general liability insurance"
       }
      }
     },
     "localname": "PaymentToAcquireWorkersCompensationAndGeneralLiabilityInsurance",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_PercentageOfNumberOfShares": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of number of shares",
        "label": "Percentage of number of shares",
        "terseLabel": "Percentage of number of shares"
       }
      }
     },
     "localname": "PercentageOfNumberOfShares",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreementCBWarrantsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "lmb_PerformanceAndMarketBasedRestrictedStockUnitsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Performance and Market based Restricted Stock Units [Member]",
        "terseLabel": "Performance and market-based RSUs"
       }
      }
     },
     "localname": "PerformanceAndMarketBasedRestrictedStockUnitsMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_PerformanceBasedRestrictedStockUnitsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Performance Based Restricted Stock Units [Member]",
        "terseLabel": "PRSUs"
       }
      }
     },
     "localname": "PerformanceBasedRestrictedStockUnitsMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansTables"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_PrivateWarrantsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "",
        "label": "Private Warrants [Member]",
        "terseLabel": "Private Warrants"
       }
      }
     },
     "localname": "PrivateWarrantsMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails",
      "http://www.limbachinc.com/role/EquityOutstandingWarrantsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_PublicWarrantsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Public warrants [Member]",
        "terseLabel": "Public Warrants"
       }
      }
     },
     "localname": "PublicWarrantsMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails",
      "http://www.limbachinc.com/role/EquityOutstandingWarrantsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_RefinancingAgreement2019Member": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Refinancing Agreement 2019 [Member]",
        "verboseLabel": "2019 Refinancing Agreement"
       }
      }
     },
     "localname": "RefinancingAgreement2019Member",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreementCBWarrantsDetails",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/FairValueMeasurementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_RefinancingTermLoan2019EmbeddedDerivativeMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Refinancing Term Loan 2019 Embedded Derivative [Member]",
        "label": "Refinancing Term Loan 2019 Embedded Derivative [Member]",
        "terseLabel": "2019 Refinancing Term Loan - CB Warrants"
       }
      }
     },
     "localname": "RefinancingTermLoan2019EmbeddedDerivativeMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreementCBWarrantsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_RefinancingTermLoan2019Member": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Refinancing Term Loan 2019 [Member]",
        "label": "Refinancing Term Loan 2019 [Member]",
        "terseLabel": "2019 Refinancing Term Loan",
        "verboseLabel": "2019 Refinancing Term Loan - term loan payable in quarterly installments of principal, (commencing in September 2020) plus interest through April 2022"
       }
      }
     },
     "localname": "RefinancingTermLoan2019Member",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_RetainageReceivablePercentage": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Retainage Receivable, Percentage",
        "label": "Retainage Receivable, Percentage",
        "terseLabel": "Percentage completed of certain milestones"
       }
      }
     },
     "localname": "RetainageReceivablePercentage",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "lmb_RevenueEarnedOnUncompletedContracts": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersContractsInProgressDetails_1": {
       "order": 1.0,
       "parentTag": "lmb_NetUnderOverbillingOnContracts",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of revenue earned from uncompleted contracts during the period.",
        "label": "Revenue Earned On Uncompleted Contracts",
        "terseLabel": "Revenue earned on uncompleted contracts"
       }
      }
     },
     "localname": "RevenueEarnedOnUncompletedContracts",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersContractsInProgressDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_RightOfUseAssetDisposedOrAdjustedModifyingFinanceLeaseLiability": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Right-Of-Use Asset Disposed Or Adjusted Modifying Finance Lease Liability",
        "label": "Right-Of-Use Asset Disposed Or Adjusted Modifying Finance Lease Liability",
        "terseLabel": "Right-of-use assets disposed or adjusted modifying finance leases liabilities"
       }
      }
     },
     "localname": "RightOfUseAssetDisposedOrAdjustedModifyingFinanceLeaseLiability",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/LeasesSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_RightOfUseAssetDisposedOrAdjustedModifyingOperatingLeaseLiability": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Right-Of-Use Asset Disposed Or Adjusted Modifying Operating Lease Liability",
        "label": "Right-Of-Use Asset Disposed Or Adjusted Modifying Operating Lease Liability",
        "terseLabel": "Right-of-use assets disposed or adjusted modifying operating leases liabilities"
       }
      }
     },
     "localname": "RightOfUseAssetDisposedOrAdjustedModifyingOperatingLeaseLiability",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/LeasesSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_SaleOfStockPeriodToPurchaseAdditionalShares": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sale Of Stock, Period To Purchase Additional Shares",
        "label": "Sale Of Stock, Period To Purchase Additional Shares",
        "terseLabel": "Period to purchase additional shares"
       }
      }
     },
     "localname": "SaleOfStockPeriodToPurchaseAdditionalShares",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "lmb_ScheduleOfContractsInProgressTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the presentation of contracts in progress.",
        "label": "Schedule Of Contracts In Progress [Table Text Block]",
        "terseLabel": "Schedule of Contracts In Progress"
       }
      }
     },
     "localname": "ScheduleOfContractsInProgressTableTextBlock",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "lmb_SeniorLeverageRatio": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Senior Leverage Ratio",
        "label": "Senior Leverage Ratio",
        "terseLabel": "Senior Leverage Ratio"
       }
      }
     },
     "localname": "SeniorLeverageRatio",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "lmb_SeniorLeverageRatioCovenantAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Senior Leverage Ratio Covenant [Axis]",
        "terseLabel": "Senior Leverage ratio covenant [Axis]"
       }
      }
     },
     "localname": "SeniorLeverageRatioCovenantAxis",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "lmb_SeniorLeverageRatioCovenantDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Senior Leverage Ratio Covenant [Domain]",
        "terseLabel": "Senior Leverage ratio covenant [Domain]"
       }
      }
     },
     "localname": "SeniorLeverageRatioCovenantDomain",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_SeniorLeverageRatioCovenantTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of debt instrument related to Senior Leverage ratio covenant.",
        "label": "Senior Leverage ratio covenant [Table Text Block]",
        "terseLabel": "Schedule of Additional Margin and Commitment Fees Payable"
       }
      }
     },
     "localname": "SeniorLeverageRatioCovenantTableTextBlock",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "lmb_ServiceBasedRestrictedStockUnitsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Service Based Restricted Stock Units [Member]",
        "verboseLabel": "RSUs"
       }
      }
     },
     "localname": "ServiceBasedRestrictedStockUnitsMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansTables"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_ServiceBasedRestrictedStockUnitsRSUsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Service-Based Restricted Stock Units (RSUs)",
        "label": "Service-Based Restricted Stock Units (RSUs) [Member]",
        "terseLabel": "Service-based RSUs"
       }
      }
     },
     "localname": "ServiceBasedRestrictedStockUnitsRSUsMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_ServicePeriod": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Service Period",
        "label": "Service Period",
        "terseLabel": "Service period"
       }
      }
     },
     "localname": "ServicePeriod",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/BusinessandOrganizationDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "lmb_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionPercentage": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Percentage",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Percentage",
        "terseLabel": "Maximum employee subscription percentage"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionPercentage",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "lmb_ShareBasedCompensationArrangementBySharebasedPaymentAwardOfferingPeriod": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share-Based Compensation Arrangement By Share-based Payment Award, Offering Period",
        "label": "Share-Based Compensation Arrangement By Share-based Payment Award, Offering Period",
        "terseLabel": "Offering period"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementBySharebasedPaymentAwardOfferingPeriod",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "lmb_SharebasedCompensationArrangementbySharebasedPaymentAwardMaximumEmployeeSubscriptionAmount": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Amount",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Amount",
        "terseLabel": "Maximum contribution amount"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementbySharebasedPaymentAwardMaximumEmployeeSubscriptionAmount",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_SouthernCaliforniaRegionProjectMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Southern California Region Project [Member]",
        "label": "Southern California Region Project [Member]",
        "terseLabel": "Southern California Region Project"
       }
      }
     },
     "localname": "SouthernCaliforniaRegionProjectMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_SupplementalCashFlowInformationRelatedToLeasesTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Supplemental Cash Flow Information Related To Leases [Table Text Block]",
        "label": "Supplemental Cash Flow Information Related To Leases [Table Text Block]",
        "terseLabel": "Leases Supplemental Cash Flow Information"
       }
      }
     },
     "localname": "SupplementalCashFlowInformationRelatedToLeasesTableTextBlock",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "lmb_UnauditedInterimFinancialInformationPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy regarding unaudited interim financial information.",
        "label": "Unaudited Interim Financial Information [Policy Text Block]",
        "terseLabel": "Unaudited Interim Financial Information"
       }
      }
     },
     "localname": "UnauditedInterimFinancialInformationPolicyTextBlock",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/SignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "lmb_WarrantLiabilityCancelledWithEarlyExtinguishmentOfDebt": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Warrant Liability Cancelled With Early Extinguishment Of Debt",
        "label": "Warrant Liability Cancelled With Early Extinguishment Of Debt",
        "terseLabel": "Reversal or warrant liability"
       }
      }
     },
     "localname": "WarrantLiabilityCancelledWithEarlyExtinguishmentOfDebt",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "lmb_WindtrustTermAndRevolvingLoansMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Windtrust Term And Revolving Loans",
        "label": "Windtrust Term And Revolving Loans [Member]",
        "terseLabel": "Wintrust Loans"
       }
      }
     },
     "localname": "WindtrustTermAndRevolvingLoansMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_WintrustRevolvingLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Wintrust Revolving Loan",
        "label": "Wintrust Revolving Loan [Member]",
        "terseLabel": "Wintrust Revolving Loan"
       }
      }
     },
     "localname": "WintrustRevolvingLoanMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails",
      "http://www.limbachinc.com/role/FairValueMeasurementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_WintrustTermLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Wintrust Term Loan",
        "label": "Wintrust Term Loan [Member]",
        "terseLabel": "Wintrust Term Loan - term loan payable in quarterly installments of principal, (commencing in March 2021) plus interest through February 2026",
        "verboseLabel": "Wintrust Term Loan"
       }
      }
     },
     "localname": "WintrustTermLoanMember",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails",
      "http://www.limbachinc.com/role/FairValueMeasurementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "lmb_WriteOffOfDeferredDebtIssuanceCostsAndDiscounts": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Write Off Of Deferred Debt Issuance Costs And Discounts",
        "label": "Write Off Of Deferred Debt Issuance Costs And Discounts",
        "terseLabel": "Write off of debt issuance and discount costs"
       }
      }
     },
     "localname": "WriteOffOfDeferredDebtIssuanceCostsAndDiscounts",
     "nsuri": "http://www.limbachinc.com/20210930",
     "presentation": [
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "srt_ConsolidationItemsAxis": {
     "auth_ref": [
      "r91",
      "r127",
      "r140",
      "r141",
      "r142",
      "r143",
      "r145",
      "r147",
      "r151",
      "r212",
      "r213",
      "r214",
      "r215",
      "r216",
      "r217",
      "r219",
      "r220",
      "r222",
      "r224",
      "r225"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Consolidation Items [Axis]",
        "terseLabel": "Consolidation Items [Axis]"
       }
      }
     },
     "localname": "ConsolidationItemsAxis",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ConsolidationItemsDomain": {
     "auth_ref": [
      "r91",
      "r127",
      "r140",
      "r141",
      "r142",
      "r143",
      "r145",
      "r147",
      "r151",
      "r212",
      "r213",
      "r214",
      "r215",
      "r216",
      "r217",
      "r219",
      "r220",
      "r222",
      "r224",
      "r225"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Consolidation Items [Domain]",
        "terseLabel": "Consolidation Items [Domain]"
       }
      }
     },
     "localname": "ConsolidationItemsDomain",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_LitigationCaseAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Litigation Case [Axis]",
        "terseLabel": "Litigation Case [Axis]"
       }
      }
     },
     "localname": "LitigationCaseAxis",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_LitigationCaseTypeDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Litigation Case [Domain]",
        "terseLabel": "Litigation Case [Domain]"
       }
      }
     },
     "localname": "LitigationCaseTypeDomain",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_MaximumMember": {
     "auth_ref": [
      "r230",
      "r271",
      "r328",
      "r329",
      "r429",
      "r430",
      "r431",
      "r432",
      "r433",
      "r434",
      "r435",
      "r475",
      "r476",
      "r485",
      "r486"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Maximum [Member]",
        "terseLabel": "Maximum"
       }
      }
     },
     "localname": "MaximumMember",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_MinimumMember": {
     "auth_ref": [
      "r230",
      "r271",
      "r328",
      "r329",
      "r429",
      "r430",
      "r431",
      "r432",
      "r433",
      "r434",
      "r435",
      "r475",
      "r476",
      "r485",
      "r486"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Minimum [Member]",
        "terseLabel": "Minimum"
       }
      }
     },
     "localname": "MinimumMember",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RangeAxis": {
     "auth_ref": [
      "r230",
      "r271",
      "r319",
      "r328",
      "r329",
      "r429",
      "r430",
      "r431",
      "r432",
      "r433",
      "r434",
      "r435",
      "r475",
      "r476",
      "r485",
      "r486"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statistical Measurement [Axis]",
        "terseLabel": "Statistical Measurement [Axis]"
       }
      }
     },
     "localname": "RangeAxis",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_RangeMember": {
     "auth_ref": [
      "r230",
      "r271",
      "r319",
      "r328",
      "r329",
      "r429",
      "r430",
      "r431",
      "r432",
      "r433",
      "r434",
      "r435",
      "r475",
      "r476",
      "r485",
      "r486"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statistical Measurement [Domain]",
        "terseLabel": "Statistical Measurement [Domain]"
       }
      }
     },
     "localname": "RangeMember",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccountingPoliciesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Accounting Policies [Abstract]",
        "terseLabel": "Accounting Policies [Abstract]"
       }
      }
     },
     "localname": "AccountingPoliciesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccountsPayableAndAccruedLiabilitiesNoncurrent": {
     "auth_ref": [
      "r34"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CommitmentsandContingenciesComponentsofSelfInsuranceLiabilityDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_OtherLiabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due after one year (or beyond the operating cycle if longer), including liabilities for compensation costs, fringe benefits other than pension and postretirement obligations, rent, contractual rights and obligations, and statutory obligations.",
        "label": "Accounts Payable and Accrued Liabilities, Noncurrent",
        "terseLabel": "Non-current liability"
       }
      }
     },
     "localname": "AccountsPayableAndAccruedLiabilitiesNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesComponentsofSelfInsuranceLiabilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccountsPayableCurrent": {
     "auth_ref": [
      "r26",
      "r425"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Accounts Payable, Current",
        "terseLabel": "Accounts payable, including retainage"
       }
      }
     },
     "localname": "AccountsPayableCurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccountsReceivableNetCurrent": {
     "auth_ref": [
      "r5",
      "r16",
      "r159",
      "r160"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.",
        "label": "Accounts Receivable, after Allowance for Credit Loss, Current",
        "verboseLabel": "Accounts receivable (net of allowance for doubtful accounts of $285 and $266 as of September\u00a030, 2021 and December\u00a031, 2020, respectively)"
       }
      }
     },
     "localname": "AccountsReceivableNetCurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccruedIncomeTaxesCurrent": {
     "auth_ref": [
      "r12",
      "r448",
      "r462"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 5.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.",
        "label": "Accrued Income Taxes, Current",
        "terseLabel": "Accrued income taxes"
       }
      }
     },
     "localname": "AccruedIncomeTaxesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccruedLiabilitiesAndOtherLiabilities": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 6.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of expenses incurred but not yet paid nor invoiced, and liabilities classified as other.",
        "label": "Accrued Liabilities and Other Liabilities",
        "verboseLabel": "Accrued expenses and other current liabilities"
       }
      }
     },
     "localname": "AccruedLiabilitiesAndOtherLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdditionalPaidInCapital": {
     "auth_ref": [
      "r17",
      "r347",
      "r425"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of excess of issue price over par or stated value of stock and from other transaction involving stock or stockholder. Includes, but is not limited to, additional paid-in capital (APIC) for common and preferred stock.",
        "label": "Additional Paid in Capital",
        "verboseLabel": "Additional paid-in capital"
       }
      }
     },
     "localname": "AdditionalPaidInCapital",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdditionalPaidInCapitalMember": {
     "auth_ref": [
      "r93",
      "r94",
      "r95",
      "r344",
      "r345",
      "r346",
      "r380"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders.",
        "label": "Additional Paid-in Capital [Member]",
        "verboseLabel": "Additional paid-in capital"
       }
      }
     },
     "localname": "AdditionalPaidInCapitalMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement.",
        "label": "Share-based Payment Arrangement, Decrease for Tax Withholding Obligation",
        "negatedLabel": "Tax withholding related to vested restricted stock units"
       }
      }
     },
     "localname": "AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationOtherLongtermIncentivePlansRequisiteServicePeriodRecognition": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement, classified as other.",
        "label": "APIC, Share-based Payment Arrangement, Other, Increase for Cost Recognition",
        "terseLabel": "Stock-based compensation"
       }
      }
     },
     "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationOtherLongtermIncentivePlansRequisiteServicePeriodRecognition",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]",
        "verboseLabel": "Adjustments to reconcile net income to cash (used in) provided by operating activities:"
       }
      }
     },
     "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent": {
     "auth_ref": [
      "r22",
      "r161",
      "r165"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of allowance for credit loss on accounts receivable, classified as current.",
        "label": "Accounts Receivable, Allowance for Credit Loss, Current",
        "negatedTerseLabel": "Allowance for doubtful accounts"
       }
      }
     },
     "localname": "AllowanceForDoubtfulAccountsReceivableCurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AmortizationOfFinancingCosts": {
     "auth_ref": [
      "r57",
      "r76",
      "r250",
      "r400"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 6.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of amortization expense attributable to debt issuance costs.",
        "label": "Amortization of Debt Issuance Costs",
        "verboseLabel": "Amortization of debt issuance costs"
       }
      }
     },
     "localname": "AmortizationOfFinancingCosts",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AmortizationOfIntangibleAssets": {
     "auth_ref": [
      "r76",
      "r178",
      "r185"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_OperatingExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.",
        "label": "Amortization of Intangible Assets",
        "terseLabel": "Amortization of intangibles"
       }
      }
     },
     "localname": "AmortizationOfIntangibleAssets",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails",
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": {
     "auth_ref": [
      "r113"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.",
        "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount",
        "terseLabel": "Antidilutive securities excluded from computation of earnings per share, amount (in shares)"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis": {
     "auth_ref": [
      "r113"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of antidilutive security.",
        "label": "Antidilutive Securities [Axis]",
        "terseLabel": "Antidilutive Securities [Axis]"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "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.",
        "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]",
        "terseLabel": "Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AntidilutiveSecuritiesNameDomain": {
     "auth_ref": [
      "r113"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Incremental common shares attributable to securities that were not included in diluted earnings per share (EPS) because to do so would increase EPS amounts or decrease loss per share amounts for the period presented.",
        "label": "Antidilutive Securities, Name [Domain]",
        "terseLabel": "Antidilutive Securities, Name [Domain]"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_Assets": {
     "auth_ref": [
      "r87",
      "r135",
      "r142",
      "r149",
      "r163",
      "r212",
      "r213",
      "r214",
      "r216",
      "r217",
      "r218",
      "r219",
      "r221",
      "r223",
      "r225",
      "r226",
      "r375",
      "r377",
      "r390",
      "r423",
      "r425",
      "r446",
      "r461"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets",
        "totalLabel": "Total assets"
       }
      }
     },
     "localname": "Assets",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Assets [Abstract]",
        "verboseLabel": "ASSETS"
       }
      }
     },
     "localname": "AssetsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetsCurrent": {
     "auth_ref": [
      "r6",
      "r7",
      "r42",
      "r87",
      "r163",
      "r212",
      "r213",
      "r214",
      "r216",
      "r217",
      "r218",
      "r219",
      "r221",
      "r223",
      "r225",
      "r226",
      "r375",
      "r377",
      "r390",
      "r423",
      "r425"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets, Current",
        "totalLabel": "Total current assets"
       }
      }
     },
     "localname": "AssetsCurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Assets, Current [Abstract]",
        "terseLabel": "Current assets:"
       }
      }
     },
     "localname": "AssetsCurrentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AwardTypeAxis": {
     "auth_ref": [
      "r331",
      "r343"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of award under share-based payment arrangement.",
        "label": "Award Type [Axis]",
        "terseLabel": "Award Type [Axis]"
       }
      }
     },
     "localname": "AwardTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansTables"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BaseRateMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Minimum rate investor will accept.",
        "label": "Base Rate [Member]",
        "terseLabel": "Base Rate"
       }
      }
     },
     "localname": "BaseRateMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_BasisOfAccountingPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).",
        "label": "Basis of Accounting, Policy [Policy Text Block]",
        "terseLabel": "Basis of Presentation"
       }
      }
     },
     "localname": "BasisOfAccountingPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/SignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProjectAxis": {
     "auth_ref": [
      "r440",
      "r441",
      "r442"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by project.",
        "label": "Project [Axis]",
        "terseLabel": "Project [Axis]"
       }
      }
     },
     "localname": "CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProjectAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_Cash": {
     "auth_ref": [
      "r23",
      "r425",
      "r482",
      "r483"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.",
        "label": "Cash",
        "verboseLabel": "Cash and cash equivalents"
       }
      }
     },
     "localname": "Cash",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": {
     "auth_ref": [
      "r72",
      "r78",
      "r80"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents",
        "periodEndLabel": "Cash, cash equivalents and restricted cash, end of period",
        "periodStartLabel": "Cash, cash equivalents and restricted cash, beginning of period"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": {
     "auth_ref": [
      "r72",
      "r391"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect",
        "totalLabel": "(Decrease) increase in cash, cash equivalents and restricted cash"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ClassOfStockLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "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.",
        "label": "Class of Stock [Line Items]",
        "terseLabel": "Class of Stock [Line Items]"
       }
      }
     },
     "localname": "ClassOfStockLineItems",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails",
      "http://www.limbachinc.com/role/EquityOutstandingWarrantsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ClassOfWarrantOrRightAxis": {
     "auth_ref": [
      "r293",
      "r330"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of warrant or right issued.",
        "label": "Class of Warrant or Right [Axis]",
        "terseLabel": "Class of Warrant or Right [Axis]"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails",
      "http://www.limbachinc.com/role/EquityNarrativeDetails",
      "http://www.limbachinc.com/role/EquityOutstandingWarrantsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ClassOfWarrantOrRightDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the class or type of warrant or right outstanding. Warrants and rights represent derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months.",
        "label": "Class of Warrant or Right [Domain]",
        "terseLabel": "Class of Warrant or Right [Domain]"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails",
      "http://www.limbachinc.com/role/EquityNarrativeDetails",
      "http://www.limbachinc.com/role/EquityOutstandingWarrantsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1": {
     "auth_ref": [
      "r286"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Exercise price per share or per unit of warrants or rights outstanding.",
        "label": "Class of Warrant or Right, Exercise Price of Warrants or Rights",
        "terseLabel": "Exercise price of warrants (in usd per share)"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreementCBWarrantsDetails",
      "http://www.limbachinc.com/role/EquityNarrativeDetails",
      "http://www.limbachinc.com/role/EquityOutstandingWarrantsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.",
        "label": "Class of Warrant or Right, Number of Securities Called by Each Warrant or Right",
        "terseLabel": "Class of warrant or right, number of securities called by each warrant or right (in shares)"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreementCBWarrantsDetails",
      "http://www.limbachinc.com/role/EquityOutstandingWarrantsDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ClassOfWarrantOrRightOutstanding": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of warrants or rights outstanding.",
        "label": "Class of Warrant or Right, Outstanding",
        "terseLabel": "Class of warrant or right, outstanding (in shares)"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityOutstandingWarrantsDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommitmentsAndContingencies": {
     "auth_ref": [
      "r35",
      "r199",
      "r453",
      "r466"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.",
        "label": "Commitments and Contingencies",
        "verboseLabel": "Commitments and contingencies"
       }
      }
     },
     "localname": "CommitmentsAndContingencies",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Commitments and Contingencies Disclosure [Abstract]",
        "terseLabel": "Commitments and Contingencies Disclosure [Abstract]"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": {
     "auth_ref": [
      "r196",
      "r197",
      "r198",
      "r208",
      "r484"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for commitments and contingencies.",
        "label": "Commitments and Contingencies Disclosure [Text Block]",
        "terseLabel": "Commitments and Contingencies"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingencies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CommonStockCapitalSharesReservedForFutureIssuance": {
     "auth_ref": [
      "r37"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate number of common shares reserved for future issuance.",
        "label": "Common Stock, Capital Shares Reserved for Future Issuance",
        "terseLabel": "Common stock, capital shares reserved for future issuance (in shares)",
        "verboseLabel": "Common stock, capital shares reserved for future issuance (in shares)"
       }
      }
     },
     "localname": "CommonStockCapitalSharesReservedForFutureIssuance",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockMember": {
     "auth_ref": [
      "r93",
      "r94",
      "r380"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Stock that is subordinate to all other stock of the issuer.",
        "label": "Common Stock [Member]",
        "terseLabel": "Common Stock"
       }
      }
     },
     "localname": "CommonStockMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommonStockParOrStatedValuePerShare": {
     "auth_ref": [
      "r15"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Face amount or stated value per share of common stock.",
        "label": "Common Stock, Par or Stated Value Per Share",
        "terseLabel": "Common stock, par or stated value per share (in usd per share)"
       }
      }
     },
     "localname": "CommonStockParOrStatedValuePerShare",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheetsParenthetical",
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_CommonStockSharesAuthorized": {
     "auth_ref": [
      "r15"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The maximum number of common shares permitted to be issued by an entity's charter and bylaws.",
        "label": "Common Stock, Shares Authorized",
        "terseLabel": "Common stock, shares authorized (in shares)"
       }
      }
     },
     "localname": "CommonStockSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheetsParenthetical",
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesIssued": {
     "auth_ref": [
      "r15"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.",
        "label": "Common Stock, Shares, Issued",
        "verboseLabel": "Common stock, shares, issued (in shares)"
       }
      }
     },
     "localname": "CommonStockSharesIssued",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesOutstanding": {
     "auth_ref": [
      "r15",
      "r285"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.",
        "label": "Common Stock, Shares, Outstanding",
        "verboseLabel": "Common stock, shares, outstanding (in shares)"
       }
      }
     },
     "localname": "CommonStockSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockValue": {
     "auth_ref": [
      "r15",
      "r425"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.",
        "label": "Common Stock, Value, Issued",
        "terseLabel": "Common stock, $0.0001 par value; 100,000,000 shares authorized, 10,274,242 issued and outstanding as of September\u00a030, 2021 and 7,926,137 at December\u00a031, 2020"
       }
      }
     },
     "localname": "CommonStockValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContractWithCustomerAssetAccumulatedAllowanceForCreditLoss": {
     "auth_ref": [
      "r165",
      "r166",
      "r168",
      "r297"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_ContractWithCustomerLiabilityCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of allowance for credit loss for right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.",
        "label": "Contract with Customer, Asset, Allowance for Credit Loss",
        "terseLabel": "Provisions for losses"
       }
      }
     },
     "localname": "ContractWithCustomerAssetAccumulatedAllowanceForCreditLoss",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock": {
     "auth_ref": [
      "r298"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.",
        "label": "Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]",
        "terseLabel": "Schedule of Components of Contract Asset and Liability Balances"
       }
      }
     },
     "localname": "ContractWithCustomerAssetAndLiabilityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ContractWithCustomerAssetNetCurrent": {
     "auth_ref": [
      "r295",
      "r297",
      "r316"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 6.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      },
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.",
        "label": "Contract with Customer, Asset, after Allowance for Credit Loss, Current",
        "terseLabel": "Contract assets",
        "totalLabel": "Total contract assets"
       }
      }
     },
     "localname": "ContractWithCustomerAssetNetCurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets",
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContractWithCustomerAssetNetCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Contract with Customer, Asset, after Allowance for Credit Loss, Current [Abstract]",
        "terseLabel": "Contract assets"
       }
      }
     },
     "localname": "ContractWithCustomerAssetNetCurrentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ContractWithCustomerLiabilityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Contract with Customer, Liability [Abstract]",
        "terseLabel": "Contract liabilities"
       }
      }
     },
     "localname": "ContractWithCustomerLiabilityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ContractWithCustomerLiabilityCurrent": {
     "auth_ref": [
      "r295",
      "r296",
      "r316"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      },
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.",
        "label": "Contract with Customer, Liability, Current",
        "terseLabel": "Contract liabilities",
        "totalLabel": "Total contract liabilities"
       }
      }
     },
     "localname": "ContractWithCustomerLiabilityCurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets",
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CorporateNonSegmentMember": {
     "auth_ref": [
      "r140",
      "r141",
      "r142",
      "r143",
      "r145",
      "r151",
      "r153"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Corporate headquarters or functional department that may not earn revenues or may earn revenues that are only incidental to the activities of the entity and is not considered an operating segment.",
        "label": "Corporate, Non-Segment [Member]",
        "terseLabel": "Corporate"
       }
      }
     },
     "localname": "CorporateNonSegmentMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CostOfRevenue": {
     "auth_ref": [
      "r59",
      "r87",
      "r163",
      "r212",
      "r213",
      "r214",
      "r217",
      "r218",
      "r219",
      "r221",
      "r223",
      "r225",
      "r226",
      "r390"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_GrossProfit",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate cost of goods produced and sold and services rendered during the reporting period.",
        "label": "Cost of Revenue",
        "verboseLabel": "Cost of revenue"
       }
      }
     },
     "localname": "CostOfRevenue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CostOfSalesMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Primary financial statement caption encompassing cost of sales.",
        "label": "Cost of Sales [Member]",
        "terseLabel": "Cost of revenue"
       }
      }
     },
     "localname": "CostOfSalesMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CreditFacilityAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.",
        "label": "Credit Facility [Axis]",
        "terseLabel": "Credit Facility [Axis]"
       }
      }
     },
     "localname": "CreditFacilityAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CreditFacilityDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.",
        "label": "Credit Facility [Domain]",
        "terseLabel": "Credit Facility [Domain]"
       }
      }
     },
     "localname": "CreditFacilityDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CustomerRelationshipsMember": {
     "auth_ref": [
      "r374"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Customer relationship that exists between an entity and its customer, for example, but not limited to, tenant relationships.",
        "label": "Customer Relationships [Member]",
        "terseLabel": "Customer Relationships"
       }
      }
     },
     "localname": "CustomerRelationshipsMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Debt Disclosure [Abstract]",
        "terseLabel": "Debt Disclosure [Abstract]"
       }
      }
     },
     "localname": "DebtDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtDisclosureTextBlock": {
     "auth_ref": [
      "r83",
      "r233",
      "r234",
      "r235",
      "r236",
      "r237",
      "r238",
      "r239",
      "r244",
      "r251",
      "r252",
      "r254",
      "r264"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.",
        "label": "Debt Disclosure [Text Block]",
        "terseLabel": "Debt"
       }
      }
     },
     "localname": "DebtDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DebtInstrumentAxis": {
     "auth_ref": [
      "r11",
      "r12",
      "r13",
      "r86",
      "r91",
      "r227",
      "r228",
      "r229",
      "r230",
      "r231",
      "r232",
      "r234",
      "r240",
      "r241",
      "r242",
      "r243",
      "r245",
      "r246",
      "r247",
      "r248",
      "r249",
      "r250",
      "r258",
      "r259",
      "r260",
      "r261",
      "r401",
      "r447",
      "r449",
      "r460"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of debt instrument, including, but not limited to, draws against credit facilities.",
        "label": "Debt Instrument [Axis]",
        "terseLabel": "Debt Instrument [Axis]"
       }
      }
     },
     "localname": "DebtInstrumentAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreementCBWarrantsDetails",
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails",
      "http://www.limbachinc.com/role/FairValueMeasurementsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentBasisSpreadOnVariableRate1": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage points added to the reference rate to compute the variable rate on the debt instrument.",
        "label": "Debt Instrument, Basis Spread on Variable Rate",
        "terseLabel": "Basis spread on variable rate",
        "verboseLabel": "Additional Margin for Loans"
       }
      }
     },
     "localname": "DebtInstrumentBasisSpreadOnVariableRate1",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DebtInstrumentFaceAmount": {
     "auth_ref": [
      "r227",
      "r258",
      "r259",
      "r399",
      "r401",
      "r402"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Face (par) amount of debt instrument at time of issuance.",
        "label": "Debt Instrument, Face Amount",
        "terseLabel": "Debt issued"
       }
      }
     },
     "localname": "DebtInstrumentFaceAmount",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtInstrumentFairValue": {
     "auth_ref": [
      "r242",
      "r258",
      "r259",
      "r389"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.",
        "label": "Debt Instrument, Fair Value Disclosure",
        "terseLabel": "Fair value of debt"
       }
      }
     },
     "localname": "DebtInstrumentFairValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/FairValueMeasurementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtInstrumentInterestRateEffectivePercentage": {
     "auth_ref": [
      "r32",
      "r257",
      "r399",
      "r401"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.",
        "label": "Debt Instrument, Interest Rate, Effective Percentage",
        "terseLabel": "Debt effective interest rate"
       }
      }
     },
     "localname": "DebtInstrumentInterestRateEffectivePercentage",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DebtInstrumentLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "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.",
        "label": "Debt Instrument [Line Items]",
        "terseLabel": "Debt Instrument [Line Items]"
       }
      }
     },
     "localname": "DebtInstrumentLineItems",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreementCBWarrantsDetails",
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentNameDomain": {
     "auth_ref": [
      "r33",
      "r86",
      "r91",
      "r227",
      "r228",
      "r229",
      "r230",
      "r231",
      "r232",
      "r234",
      "r240",
      "r241",
      "r242",
      "r243",
      "r245",
      "r246",
      "r247",
      "r248",
      "r249",
      "r250",
      "r258",
      "r259",
      "r260",
      "r261",
      "r401"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The name for the particular debt instrument or borrowing that distinguishes it from other debt instruments or borrowings, including draws against credit facilities.",
        "label": "Debt Instrument, Name [Domain]",
        "terseLabel": "Debt Instrument, Name [Domain]"
       }
      }
     },
     "localname": "DebtInstrumentNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreementCBWarrantsDetails",
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails",
      "http://www.limbachinc.com/role/FairValueMeasurementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtInstrumentPeriodicPaymentPrincipal": {
     "auth_ref": [
      "r33"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of the required periodic payments applied to principal.",
        "label": "Debt Instrument, Periodic Payment, Principal",
        "terseLabel": "Debt installment payments"
       }
      }
     },
     "localname": "DebtInstrumentPeriodicPaymentPrincipal",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtInstrumentTable": {
     "auth_ref": [
      "r33",
      "r86",
      "r91",
      "r227",
      "r228",
      "r229",
      "r230",
      "r231",
      "r232",
      "r234",
      "r240",
      "r241",
      "r242",
      "r243",
      "r245",
      "r246",
      "r247",
      "r248",
      "r249",
      "r250",
      "r253",
      "r258",
      "r259",
      "r260",
      "r261",
      "r286",
      "r289",
      "r290",
      "r291",
      "r398",
      "r399",
      "r401",
      "r402",
      "r459"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A table or schedule providing information pertaining to long-term debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.",
        "label": "Schedule of Long-term Debt Instruments [Table]",
        "terseLabel": "Schedule of Long-term Debt Instruments [Table]"
       }
      }
     },
     "localname": "DebtInstrumentTable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreementCBWarrantsDetails",
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet": {
     "auth_ref": [
      "r240",
      "r255",
      "r258",
      "r259",
      "r400"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of unamortized debt discount (premium) and debt issuance costs.",
        "label": "Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net",
        "negatedLabel": "Less - Unamortized discount and debt issuance costs"
       }
      }
     },
     "localname": "DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredIncomeTaxAssetsNet": {
     "auth_ref": [
      "r350",
      "r351"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 6.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.",
        "label": "Deferred Income Tax Assets, Net",
        "verboseLabel": "Deferred tax asset"
       }
      }
     },
     "localname": "DeferredIncomeTaxAssetsNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredIncomeTaxExpenseBenefit": {
     "auth_ref": [
      "r76",
      "r88",
      "r359",
      "r364",
      "r365",
      "r366"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 7.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "label": "Deferred Income Tax Expense (Benefit)",
        "terseLabel": "Deferred income tax provision"
       }
      }
     },
     "localname": "DeferredIncomeTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsValuationAllowance": {
     "auth_ref": [
      "r357"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.",
        "label": "Deferred Tax Assets, Valuation Allowance",
        "terseLabel": "Valuation allowance"
       }
      }
     },
     "localname": "DeferredTaxAssetsValuationAllowance",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/IncomeTaxesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DepreciationDepletionAndAmortization": {
     "auth_ref": [
      "r76",
      "r130"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.",
        "label": "Depreciation, Depletion and Amortization",
        "terseLabel": "Depreciation and amortization",
        "verboseLabel": "Depreciation and amortization"
       }
      }
     },
     "localname": "DepreciationDepletionAndAmortization",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeLiabilities": {
     "auth_ref": [
      "r44",
      "r45",
      "r46",
      "r389"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.",
        "label": "Derivative Liability",
        "terseLabel": "Derivative liability"
       }
      }
     },
     "localname": "DerivativeLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreementCBWarrantsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": {
     "auth_ref": [
      "r348"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for share-based payment arrangement.",
        "label": "Share-based Payment Arrangement [Text Block]",
        "terseLabel": "Management Incentive Plans"
       }
      }
     },
     "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlans"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Share-based Payment Arrangement [Abstract]",
        "terseLabel": "Share-based Payment Arrangement [Abstract]"
       }
      }
     },
     "localname": "DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Earnings Per Share [Abstract]",
        "terseLabel": "Earnings Per Share [Abstract]"
       }
      }
     },
     "localname": "EarningsPerShareAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareBasic": {
     "auth_ref": [
      "r55",
      "r98",
      "r99",
      "r100",
      "r101",
      "r102",
      "r106",
      "r108",
      "r110",
      "r111",
      "r112",
      "r116",
      "r117",
      "r381",
      "r382",
      "r456",
      "r469"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.",
        "label": "Earnings Per Share, Basic",
        "terseLabel": "Basic (in usd per share)"
       }
      }
     },
     "localname": "EarningsPerShareBasic",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/EarningsperShareScheduleofEarningsPerShareBasicandDilutedDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareBasicAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Earnings Per Share, Basic [Abstract]",
        "terseLabel": "EPS:",
        "verboseLabel": "Income per common share:"
       }
      }
     },
     "localname": "EarningsPerShareBasicAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/EarningsperShareScheduleofEarningsPerShareBasicandDilutedDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareDiluted": {
     "auth_ref": [
      "r55",
      "r98",
      "r99",
      "r100",
      "r101",
      "r102",
      "r108",
      "r110",
      "r111",
      "r112",
      "r116",
      "r117",
      "r381",
      "r382",
      "r456",
      "r469"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.",
        "label": "Earnings Per Share, Diluted",
        "terseLabel": "Diluted (in usd per share)"
       }
      }
     },
     "localname": "EarningsPerShareDiluted",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/EarningsperShareScheduleofEarningsPerShareBasicandDilutedDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareTextBlock": {
     "auth_ref": [
      "r113",
      "r114",
      "r115",
      "r118"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for earnings per share.",
        "label": "Earnings Per Share [Text Block]",
        "terseLabel": "Earnings per Share"
       }
      }
     },
     "localname": "EarningsPerShareTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShare"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EffectiveIncomeTaxRateContinuingOperations": {
     "auth_ref": [
      "r353"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.",
        "label": "Effective Income Tax Rate Reconciliation, Percent",
        "terseLabel": "Effective tax rate"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateContinuingOperations",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/IncomeTaxesDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1": {
     "auth_ref": [
      "r342"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition",
        "terseLabel": "Weighted average period to recognize share-based costs"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions": {
     "auth_ref": [
      "r342"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.",
        "label": "Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount",
        "terseLabel": "Unrecognized share-based costs"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeStockMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "An Employee Stock Purchase Plan is a tax-efficient means by which employees of a corporation can purchase the corporation's stock.",
        "label": "Employee Stock [Member]",
        "terseLabel": "Employee Stock",
        "verboseLabel": "Employee Stock Purchase Plan"
       }
      }
     },
     "localname": "EmployeeStockMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails",
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Equity [Abstract]"
       }
      }
     },
     "localname": "EquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EquityComponentDomain": {
     "auth_ref": [
      "r0",
      "r49",
      "r50",
      "r51",
      "r93",
      "r94",
      "r95",
      "r97",
      "r103",
      "r105",
      "r119",
      "r164",
      "r285",
      "r292",
      "r344",
      "r345",
      "r346",
      "r360",
      "r361",
      "r380",
      "r392",
      "r393",
      "r394",
      "r395",
      "r396",
      "r397",
      "r477",
      "r478",
      "r479",
      "r493"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Components of equity are the parts of the total Equity balance including that which is allocated to common, preferred, treasury stock, retained earnings, etc.",
        "label": "Equity Component [Domain]",
        "terseLabel": "Equity Component [Domain]"
       }
      }
     },
     "localname": "EquityComponentDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EurodollarMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Interest rate based on U.S. dollar denominated deposits at foreign banks or foreign branches of U.S. banks.",
        "label": "Eurodollar [Member]",
        "terseLabel": "Eurodollar"
       }
      }
     },
     "localname": "EurodollarMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueAdjustmentOfWarrants": {
     "auth_ref": [
      "r76",
      "r265"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 10.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations": {
       "order": 4.0,
       "parentTag": "us-gaap_OtherExpenses",
       "weight": 1.0
      },
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of expense (income) related to adjustment to fair value of warrant liability.",
        "label": "Fair Value Adjustment of Warrants",
        "negatedLabel": "(Loss) gain on change in fair value of warrant liability",
        "negatedTerseLabel": "(Loss) gain on change in fair value of warrant liability",
        "terseLabel": "(Gain) loss on change in fair value of warrant liability"
       }
      }
     },
     "localname": "FairValueAdjustmentOfWarrants",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/FairValueMeasurementsDetails",
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "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.",
        "label": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]",
        "terseLabel": "Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/FairValueMeasurementsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": {
     "auth_ref": [
      "r383",
      "r384",
      "r385",
      "r388"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of information about asset and liability measured at fair value on recurring and nonrecurring basis.",
        "label": "Fair Value, Recurring and Nonrecurring [Table]",
        "terseLabel": "Fair Value, Recurring and Nonrecurring [Table]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/FairValueMeasurementsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByFairValueHierarchyLevelAxis": {
     "auth_ref": [
      "r242",
      "r258",
      "r259",
      "r320",
      "r321",
      "r322",
      "r323",
      "r324",
      "r325",
      "r326",
      "r327",
      "r384",
      "r426",
      "r427",
      "r428"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient.",
        "label": "Fair Value Hierarchy and NAV [Axis]",
        "terseLabel": "Fair Value Hierarchy and NAV [Axis]"
       }
      }
     },
     "localname": "FairValueByFairValueHierarchyLevelAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/FairValueMeasurementsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueDisclosuresAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fair Value Disclosures [Abstract]",
        "terseLabel": "Fair Value Disclosures [Abstract]"
       }
      }
     },
     "localname": "FairValueDisclosuresAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueDisclosuresTextBlock": {
     "auth_ref": [
      "r387"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.",
        "label": "Fair Value Disclosures [Text Block]",
        "terseLabel": "Fair Value Measurements"
       }
      }
     },
     "localname": "FairValueDisclosuresTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/FairValueMeasurements"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueInputsLevel3Member": {
     "auth_ref": [
      "r242",
      "r258",
      "r259",
      "r320",
      "r321",
      "r322",
      "r323",
      "r324",
      "r325",
      "r326",
      "r327",
      "r384",
      "r428"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "label": "Fair Value, Inputs, Level 3 [Member]",
        "terseLabel": "Level 3"
       }
      }
     },
     "localname": "FairValueInputsLevel3Member",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/FairValueMeasurementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for fair value measurements of financial and non-financial assets, liabilities and instruments classified in shareholders' equity. Disclosures include, but are not limited to, how an entity that manages a group of financial assets and liabilities on the basis of its net exposure measures the fair value of those assets and liabilities.",
        "label": "Fair Value Measurement, Policy [Policy Text Block]",
        "terseLabel": "Fair Value Measurements"
       }
      }
     },
     "localname": "FairValueMeasurementPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/SignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": {
     "auth_ref": [
      "r242",
      "r258",
      "r259",
      "r320",
      "r321",
      "r322",
      "r323",
      "r324",
      "r325",
      "r326",
      "r327",
      "r426",
      "r427",
      "r428"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Categories used to prioritize the inputs to valuation techniques to measure fair value.",
        "label": "Fair Value Hierarchy and NAV [Domain]",
        "terseLabel": "Fair Value Hierarchy and NAV [Domain]"
       }
      }
     },
     "localname": "FairValueMeasurementsFairValueHierarchyDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/FairValueMeasurementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FinanceLeaseInterestExpense": {
     "auth_ref": [
      "r406",
      "r412",
      "r421"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_LeaseCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of interest expense on finance lease liability.",
        "label": "Finance Lease, Interest Expense",
        "terseLabel": "Finance lease cost, interest expense"
       }
      }
     },
     "localname": "FinanceLeaseInterestExpense",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseInterestPaymentOnLiability": {
     "auth_ref": [
      "r408",
      "r415"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of interest paid on finance lease liability.",
        "label": "Finance Lease, Interest Payment on Liability",
        "verboseLabel": "Operating cash flows from finance leases"
       }
      }
     },
     "localname": "FinanceLeaseInterestPaymentOnLiability",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Finance Lease, Liability, Payment, Due [Abstract]",
        "terseLabel": "Finance Leases"
       }
      }
     },
     "localname": "FinanceLeaseLiabilitiesPaymentsDueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FinanceLeaseLiability": {
     "auth_ref": [
      "r405",
      "r420"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails": {
       "order": 2.0,
       "parentTag": "lmb_LongTermDebtGrossAndLeaseObligation",
       "weight": 1.0
      },
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails_1": {
       "order": 2.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from finance lease.",
        "label": "Finance Lease, Liability",
        "terseLabel": "Present value of net minimum lease payments",
        "verboseLabel": "Finance leases \u2013 collateralized by vehicles, payable in monthly installments of principal, plus interest ranging from 4.70% to 6.45% through 2025"
       }
      }
     },
     "localname": "FinanceLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityCurrent": {
     "auth_ref": [
      "r405"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails": {
       "order": 2.0,
       "parentTag": "lmb_LeaseLiability",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.",
        "label": "Finance Lease, Liability, Current",
        "terseLabel": "Current portion of long-term debt"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityCurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock": {
     "auth_ref": [
      "r420"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position.",
        "label": "Finance Lease, Liability, Fiscal Year Maturity [Table Text Block]",
        "terseLabel": "Future Minimum Commitment for Finance Leases"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityMaturityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FinanceLeaseLiabilityNoncurrent": {
     "auth_ref": [
      "r405"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails": {
       "order": 4.0,
       "parentTag": "lmb_LeaseLiability",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent.",
        "label": "Finance Lease, Liability, Noncurrent",
        "terseLabel": "Long-term debt"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDue": {
     "auth_ref": [
      "r420"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails_1": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease.",
        "label": "Finance Lease, Liability, Payment, Due",
        "totalLabel": "Total minimum lease payments"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths": {
     "auth_ref": [
      "r420"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Finance Lease, Liability, to be Paid, Year One",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueNextTwelveMonths",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour": {
     "auth_ref": [
      "r420"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Finance Lease, Liability, to be Paid, Year Four",
        "terseLabel": "2025"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueYearFour",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree": {
     "auth_ref": [
      "r420"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Finance Lease, Liability, to be Paid, Year Three",
        "terseLabel": "2024"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueYearThree",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo": {
     "auth_ref": [
      "r420"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Finance Lease, Liability, to be Paid, Year Two",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear": {
     "auth_ref": [
      "r420"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in remainder of current fiscal year.",
        "label": "Finance Lease, Liability, to be Paid, Remainder of Fiscal Year",
        "terseLabel": "Remainder of 2021"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount": {
     "auth_ref": [
      "r420"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails_1": {
       "order": 1.0,
       "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance lease.",
        "label": "Finance Lease, Liability, Undiscounted Excess Amount",
        "negatedTerseLabel": "Amounts representing interest"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityUndiscountedExcessAmount",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeasePrincipalPayments": {
     "auth_ref": [
      "r407",
      "r415"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 6.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash outflow for principal payment on finance lease.",
        "label": "Finance Lease, Principal Payments",
        "negatedLabel": "Payments on finance leases"
       }
      }
     },
     "localname": "FinanceLeasePrincipalPayments",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseRightOfUseAsset": {
     "auth_ref": [
      "r404"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails": {
       "order": 2.0,
       "parentTag": "lmb_LeaseRightOfUseAsset",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after accumulated amortization, of right-of-use asset from finance lease.",
        "label": "Finance Lease, Right-of-Use Asset, after Accumulated Amortization",
        "terseLabel": "Property, plant and equipment, net"
       }
      }
     },
     "localname": "FinanceLeaseRightOfUseAsset",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseRightOfUseAssetAccumulatedAmortization": {
     "auth_ref": [
      "r406",
      "r412"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of accumulated amortization of right-of-use asset from finance lease.",
        "label": "Finance Lease, Right-of-Use Asset, Accumulated Amortization",
        "terseLabel": "Finance lease, accumulated amortization"
       }
      }
     },
     "localname": "FinanceLeaseRightOfUseAssetAccumulatedAmortization",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseRightOfUseAssetAmortization": {
     "auth_ref": [
      "r406",
      "r412",
      "r421"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_LeaseCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of amortization expense attributable to right-of-use asset from finance lease.",
        "label": "Finance Lease, Right-of-Use Asset, Amortization",
        "terseLabel": "Finance lease cost, amortization"
       }
      }
     },
     "localname": "FinanceLeaseRightOfUseAssetAmortization",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent": {
     "auth_ref": [
      "r418",
      "r421"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average discount rate for finance lease calculated at point in time.",
        "label": "Finance Lease, Weighted Average Discount Rate, Percent",
        "terseLabel": "Finance leases, weighted average remaining discount rate"
       }
      }
     },
     "localname": "FinanceLeaseWeightedAverageDiscountRatePercent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseTermsandDiscountRatesDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1": {
     "auth_ref": [
      "r417",
      "r421"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Finance Lease, Weighted Average Remaining Lease Term",
        "terseLabel": "Finance leases, weighted average remaining lease term"
       }
      }
     },
     "localname": "FinanceLeaseWeightedAverageRemainingLeaseTerm1",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseTermsandDiscountRatesDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization": {
     "auth_ref": [
      "r184"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
        "label": "Finite-Lived Intangible Assets, Accumulated Amortization",
        "negatedTerseLabel": "Accumulated amortization"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsAccumulatedAmortization",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis": {
     "auth_ref": [
      "r179",
      "r181",
      "r184",
      "r187",
      "r438",
      "r439"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by major type or class of finite-lived intangible assets.",
        "label": "Finite-Lived Intangible Assets by Major Class [Axis]",
        "terseLabel": "Finite-Lived Intangible Assets by Major Class [Axis]"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsByMajorClassAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsGross": {
     "auth_ref": [
      "r184",
      "r439"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_IntangibleAssetsGrossExcludingGoodwill",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
        "label": "Finite-Lived Intangible Assets, Gross",
        "terseLabel": "Gross carrying amount"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsGross",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "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.",
        "label": "Finite-Lived Intangible Assets [Line Items]",
        "terseLabel": "Finite-Lived Intangible Assets [Line Items]"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain": {
     "auth_ref": [
      "r179",
      "r183"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The major class of finite-lived intangible asset (for example, patents, trademarks, copyrights, etc.) A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.",
        "label": "Finite-Lived Intangible Assets, Major Class Name [Domain]",
        "terseLabel": "Finite-Lived Intangible Assets, Major Class Name [Domain]"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsMajorClassNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsNet": {
     "auth_ref": [
      "r184",
      "r438"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
        "label": "Finite-Lived Intangible Assets, Net",
        "totalLabel": "Net intangible assets, excluding goodwill"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsNetAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Finite-Lived Intangible Assets, Net [Abstract]",
        "terseLabel": "Amortized intangible assets:"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsNetAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_GainLossOnSaleOfPropertyPlantEquipment": {
     "auth_ref": [
      "r76"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 8.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      },
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_OtherExpenses",
       "weight": -1.0
      },
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.",
        "label": "Gain (Loss) on Disposition of Property Plant Equipment",
        "negatedLabel": "Loss (gain) on sale of property and equipment",
        "terseLabel": "(Loss) gain on disposition of property and equipment",
        "verboseLabel": "(Loss) gain on disposition of property and equipment"
       }
      }
     },
     "localname": "GainLossOnSaleOfPropertyPlantEquipment",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GainLossOnTerminationOfLease": {
     "auth_ref": [
      "r403"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of gain (loss) on termination of lease before expiration of lease term.",
        "label": "Gain (Loss) on Termination of Lease",
        "negatedTerseLabel": "Reduction in gross carrying amount and accumulated amortization of intangibles due to lease termination"
       }
      }
     },
     "localname": "GainLossOnTerminationOfLease",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GainsLossesOnExtinguishmentOfDebt": {
     "auth_ref": [
      "r76",
      "r262",
      "r263"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 9.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      },
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations": {
       "order": 3.0,
       "parentTag": "us-gaap_OtherExpenses",
       "weight": -1.0
      },
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.",
        "label": "Gain (Loss) on Extinguishment of Debt",
        "negatedTerseLabel": "Loss on early debt extinguishment",
        "terseLabel": "Loss on early debt extinguishment"
       }
      }
     },
     "localname": "GainsLossesOnExtinguishmentOfDebt",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_Goodwill": {
     "auth_ref": [
      "r169",
      "r171",
      "r425",
      "r445"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.",
        "label": "Goodwill",
        "terseLabel": "Goodwill"
       }
      }
     },
     "localname": "Goodwill",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets",
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Goodwill and Intangible Assets Disclosure [Abstract]",
        "terseLabel": "Goodwill and Intangible Assets Disclosure [Abstract]"
       }
      }
     },
     "localname": "GoodwillAndIntangibleAssetsDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock": {
     "auth_ref": [
      "r189"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for goodwill and intangible assets.",
        "label": "Goodwill and Intangible Assets Disclosure [Text Block]",
        "terseLabel": "Goodwill and Intangibles"
       }
      }
     },
     "localname": "GoodwillAndIntangibleAssetsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangibles"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_GoodwillImpairmentLoss": {
     "auth_ref": [
      "r76",
      "r170",
      "r172",
      "r175"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.",
        "label": "Goodwill, Impairment Loss",
        "terseLabel": "Impairment of goodwill"
       }
      }
     },
     "localname": "GoodwillImpairmentLoss",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GoodwillLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "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.",
        "label": "Goodwill [Line Items]",
        "terseLabel": "Goodwill [Line Items]"
       }
      }
     },
     "localname": "GoodwillLineItems",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_GrossProfit": {
     "auth_ref": [
      "r58",
      "r87",
      "r135",
      "r141",
      "r145",
      "r148",
      "r151",
      "r163",
      "r212",
      "r213",
      "r214",
      "r217",
      "r218",
      "r219",
      "r221",
      "r223",
      "r225",
      "r226",
      "r390"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.",
        "label": "Gross Profit",
        "totalLabel": "Gross profit"
       }
      }
     },
     "localname": "GrossProfit",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill": {
     "auth_ref": [
      "r76",
      "r188"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.",
        "label": "Impairment of Intangible Assets (Excluding Goodwill)",
        "terseLabel": "Impairment of intangible assets (excluding goodwill)"
       }
      }
     },
     "localname": "ImpairmentOfIntangibleAssetsExcludingGoodwill",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest": {
     "auth_ref": [
      "r53",
      "r135",
      "r141",
      "r145",
      "r148",
      "r151",
      "r444",
      "r454",
      "r458",
      "r470"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.",
        "label": "Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest",
        "totalLabel": "Income before income taxes"
       }
      }
     },
     "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeStatementAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Income Statement [Abstract]",
        "terseLabel": "Income Statement [Abstract]"
       }
      }
     },
     "localname": "IncomeStatementAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementLocationAxis": {
     "auth_ref": [
      "r191",
      "r193"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by location in the income statement.",
        "label": "Income Statement Location [Axis]",
        "terseLabel": "Income Statement Location [Axis]"
       }
      }
     },
     "localname": "IncomeStatementLocationAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementLocationDomain": {
     "auth_ref": [
      "r193"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Location in the income statement.",
        "label": "Income Statement Location [Domain]",
        "terseLabel": "Income Statement Location [Domain]"
       }
      }
     },
     "localname": "IncomeStatementLocationDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IncomeTaxDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Income Tax Disclosure [Abstract]",
        "terseLabel": "Income Tax Disclosure [Abstract]"
       }
      }
     },
     "localname": "IncomeTaxDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeTaxDisclosureTextBlock": {
     "auth_ref": [
      "r89",
      "r354",
      "r356",
      "r358",
      "r362",
      "r367",
      "r369",
      "r370",
      "r371"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.",
        "label": "Income Tax Disclosure [Text Block]",
        "terseLabel": "Income Taxes"
       }
      }
     },
     "localname": "IncomeTaxDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/IncomeTaxes"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_IncomeTaxExpenseBenefit": {
     "auth_ref": [
      "r90",
      "r104",
      "r105",
      "r133",
      "r352",
      "r363",
      "r368",
      "r471"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.",
        "label": "Income Tax Expense (Benefit)",
        "verboseLabel": "Income tax provision"
       }
      }
     },
     "localname": "IncomeTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxesPaidNet": {
     "auth_ref": [
      "r79"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.",
        "label": "Income Taxes Paid, Net",
        "terseLabel": "Cash paid (received) for income taxes"
       }
      }
     },
     "localname": "IncomeTaxesPaidNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxesReceivable": {
     "auth_ref": [
      "r40",
      "r451",
      "r467"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.",
        "label": "Income Taxes Receivable, Current",
        "terseLabel": "Income tax receivable"
       }
      }
     },
     "localname": "IncomeTaxesReceivable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInAccountsPayable": {
     "auth_ref": [
      "r75"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 14.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.",
        "label": "Increase (Decrease) in Accounts Payable",
        "verboseLabel": "Accounts payable, including retainage"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccountsPayable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInAccountsReceivable": {
     "auth_ref": [
      "r75"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 11.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.",
        "label": "Increase (Decrease) in Accounts Receivable",
        "negatedLabel": "Accounts receivable"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccountsReceivable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInAccruedIncomeTaxesPayable": {
     "auth_ref": [
      "r75"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 15.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction.",
        "label": "Increase (Decrease) in Income Taxes Payable",
        "terseLabel": "Prepaid income taxes"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccruedIncomeTaxesPayable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInContractWithCustomerAsset": {
     "auth_ref": [
      "r75"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 12.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      },
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.",
        "label": "Increase (Decrease) in Contract with Customer, Asset",
        "negatedTerseLabel": "Contract assets",
        "totalLabel": "Change in contract assets"
       }
      }
     },
     "localname": "IncreaseDecreaseInContractWithCustomerAsset",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInContractWithCustomerLiability": {
     "auth_ref": [
      "r75",
      "r436"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 17.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.",
        "label": "Increase (Decrease) in Contract with Customer, Liability",
        "terseLabel": "Contract liabilities",
        "totalLabel": "Change in contract liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInContractWithCustomerLiability",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersComponentsofContractAssetandLiabilityBalancesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInOperatingCapitalAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Increase (Decrease) in Operating Capital [Abstract]",
        "terseLabel": "Changes in operating assets and liabilities:"
       }
      }
     },
     "localname": "IncreaseDecreaseInOperatingCapitalAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncreaseDecreaseInOtherAccruedLiabilities": {
     "auth_ref": [
      "r75"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 19.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in other expenses incurred but not yet paid.",
        "label": "Increase (Decrease) in Other Accrued Liabilities",
        "terseLabel": "Accrued expenses and other current liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInOtherAccruedLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInOtherCurrentAssets": {
     "auth_ref": [
      "r75"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 13.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in current assets classified as other.",
        "label": "Increase (Decrease) in Other Current Assets",
        "negatedLabel": "Other current assets"
       }
      }
     },
     "localname": "IncreaseDecreaseInOtherCurrentAssets",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 20.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in noncurrent operating liabilities classified as other.",
        "label": "Increase (Decrease) in Other Noncurrent Liabilities",
        "terseLabel": "Other long-term liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInOtherNoncurrentLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable": {
     "auth_ref": [
      "r75"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 16.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the period in the amount of cash payments due to taxing authorities for non-income-related taxes.",
        "label": "Increase (Decrease) in Property and Other Taxes Payable",
        "terseLabel": "Accrued taxes payable"
       }
      }
     },
     "localname": "IncreaseDecreaseInPropertyAndOtherTaxesPayable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis": {
     "auth_ref": [
      "r180",
      "r186"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type or class of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.",
        "label": "Indefinite-lived Intangible Assets [Axis]",
        "terseLabel": "Indefinite-lived Intangible Assets [Axis]"
       }
      }
     },
     "localname": "IndefiniteLivedIntangibleAssetsByMajorClassAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails",
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill": {
     "auth_ref": [
      "r186"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails": {
       "order": 1.0,
       "parentTag": "lmb_IntangibleAssetsAmortizedExcludingGoodwill",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.",
        "label": "Indefinite-lived Intangible Assets (Excluding Goodwill)",
        "terseLabel": "Gross carrying amount"
       }
      }
     },
     "localname": "IndefiniteLivedIntangibleAssetsExcludingGoodwill",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Indefinite-lived Intangible Assets (Excluding Goodwill) [Abstract]",
        "terseLabel": "Unamortized intangible assets:"
       }
      }
     },
     "localname": "IndefiniteLivedIntangibleAssetsExcludingGoodwillAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain": {
     "auth_ref": [
      "r180",
      "r186"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The major class of indefinite-lived intangible asset (for example, trade names, etc. but not all-inclusive), excluding goodwill. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of the company.",
        "label": "Indefinite-lived Intangible Assets, Major Class Name [Domain]",
        "terseLabel": "Indefinite-lived Intangible Assets, Major Class Name [Domain]"
       }
      }
     },
     "localname": "IndefiniteLivedIntangibleAssetsMajorClassNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails",
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IntangibleAssetsGrossExcludingGoodwill": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_IntangibleAssetsNetExcludingGoodwill",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount before accumulated amortization of intangible assets, excluding goodwill.",
        "label": "Intangible Assets, Gross (Excluding Goodwill)",
        "totalLabel": "Gross carrying amount"
       }
      }
     },
     "localname": "IntangibleAssetsGrossExcludingGoodwill",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IntangibleAssetsNetExcludingGoodwill": {
     "auth_ref": [
      "r177",
      "r182"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      },
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.",
        "label": "Intangible Assets, Net (Excluding Goodwill)",
        "totalLabel": "Total amortized and unamortized assets, excluding goodwill",
        "verboseLabel": "Intangible assets, net"
       }
      }
     },
     "localname": "IntangibleAssetsNetExcludingGoodwill",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets",
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestIncomeExpenseNet": {
     "auth_ref": [
      "r457"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherExpenses",
       "weight": -1.0
      },
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The net amount of operating interest income (expense).",
        "label": "Interest Income (Expense), Net",
        "terseLabel": "Interest expense, net"
       }
      }
     },
     "localname": "InterestIncomeExpenseNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestPaidNet": {
     "auth_ref": [
      "r71",
      "r73",
      "r79"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.",
        "label": "Interest Paid, Excluding Capitalized Interest, Operating Activities",
        "verboseLabel": "Interest paid"
       }
      }
     },
     "localname": "InterestPaidNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LeaseCost": {
     "auth_ref": [
      "r419",
      "r421"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lease cost recognized by lessee for lease contract.",
        "label": "Lease, Cost",
        "totalLabel": "Total lease cost"
       }
      }
     },
     "localname": "LeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LeaseCostTableTextBlock": {
     "auth_ref": [
      "r419"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.",
        "label": "Lease, Cost [Table Text Block]",
        "terseLabel": "Summary of Lease Costs, Lease Terms and Discount Rates"
       }
      }
     },
     "localname": "LeaseCostTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LeasesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Leases [Abstract]",
        "terseLabel": "Leases [Abstract]"
       }
      }
     },
     "localname": "LeasesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_LesseeFinanceLeaseDiscountRate": {
     "auth_ref": [
      "r410"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Discount rate used by lessee to determine present value of finance lease payments.",
        "label": "Lessee, Finance Lease, Discount Rate",
        "terseLabel": "Finance lease, discount rate"
       }
      }
     },
     "localname": "LesseeFinanceLeaseDiscountRate",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_LesseeFinanceLeasesTextBlock": {
     "auth_ref": [
      "r422"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for finance leases of lessee. Includes, but is not limited to, description of lessee's finance lease and maturity analysis of finance lease liability.",
        "label": "Lessee, Finance Leases [Text Block]",
        "terseLabel": "Leases"
       }
      }
     },
     "localname": "LesseeFinanceLeasesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Leases"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LesseeLeaseDescriptionLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "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.",
        "label": "Lessee, Lease, Description [Line Items]",
        "terseLabel": "Lessee, Lease, Description [Line Items]"
       }
      }
     },
     "localname": "LesseeLeaseDescriptionLineItems",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LesseeLeaseDescriptionTable": {
     "auth_ref": [
      "r411"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of information about lessee's leases.",
        "label": "Lessee, Lease, Description [Table]",
        "terseLabel": "Lessee, Lease, Description [Table]"
       }
      }
     },
     "localname": "LesseeLeaseDescriptionTable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock": {
     "auth_ref": [
      "r420"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.",
        "label": "Lessee, Operating Lease, Liability, Maturity [Table Text Block]",
        "terseLabel": "Future Minimum Commitment for Operating Leases"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue": {
     "auth_ref": [
      "r420"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease.",
        "label": "Lessee, Operating Lease, Liability, to be Paid",
        "totalLabel": "Total minimum lease payments"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": {
     "auth_ref": [
      "r420"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Lessee, Operating Lease, Liability, to be Paid, Year One",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour": {
     "auth_ref": [
      "r420"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Lessee, Operating Lease, Liability, to be Paid, Year Four",
        "terseLabel": "2025"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFour",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree": {
     "auth_ref": [
      "r420"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Lessee, Operating Lease, Liability, to be Paid, Year Three",
        "terseLabel": "2024"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearThree",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": {
     "auth_ref": [
      "r420"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Lessee, Operating Lease, Liability, to be Paid, Year Two",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear": {
     "auth_ref": [
      "r420"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.",
        "label": "Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year",
        "terseLabel": "Remainder of 2021"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeasesTextBlock": {
     "auth_ref": [
      "r422"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability.",
        "label": "Lessee, Operating Leases [Text Block]",
        "terseLabel": "Leases"
       }
      }
     },
     "localname": "LesseeOperatingLeasesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Leases"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LetterOfCreditMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A document typically issued by a financial institution which acts as a guarantee of payment to a beneficiary, or as the source of payment for a specific transaction (for example, wiring funds to a foreign exporter if and when specified merchandise is accepted pursuant to the terms of the letter of credit).",
        "label": "Letter of Credit [Member]",
        "terseLabel": "Sublimit for Letters of Credit"
       }
      }
     },
     "localname": "LetterOfCreditMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LettersOfCreditOutstandingAmount": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.",
        "label": "Letters of Credit Outstanding, Amount",
        "terseLabel": "Letters of credit"
       }
      }
     },
     "localname": "LettersOfCreditOutstandingAmount",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_Liabilities": {
     "auth_ref": [
      "r29",
      "r87",
      "r143",
      "r163",
      "r212",
      "r213",
      "r214",
      "r217",
      "r218",
      "r219",
      "r221",
      "r223",
      "r225",
      "r226",
      "r376",
      "r377",
      "r378",
      "r390",
      "r423",
      "r424"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.",
        "label": "Liabilities",
        "totalLabel": "Total liabilities"
       }
      }
     },
     "localname": "Liabilities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquity": {
     "auth_ref": [
      "r21",
      "r87",
      "r163",
      "r390",
      "r425",
      "r450",
      "r465"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.",
        "label": "Liabilities and Equity",
        "totalLabel": "Total liabilities and stockholders\u2019 equity"
       }
      }
     },
     "localname": "LiabilitiesAndStockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Liabilities and Equity [Abstract]",
        "verboseLabel": "LIABILITIES"
       }
      }
     },
     "localname": "LiabilitiesAndStockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilitiesCurrent": {
     "auth_ref": [
      "r31",
      "r87",
      "r163",
      "r212",
      "r213",
      "r214",
      "r217",
      "r218",
      "r219",
      "r221",
      "r223",
      "r225",
      "r226",
      "r376",
      "r377",
      "r378",
      "r390",
      "r423",
      "r424",
      "r425"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.",
        "label": "Liabilities, Current",
        "totalLabel": "Total current liabilities"
       }
      }
     },
     "localname": "LiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Liabilities, Current [Abstract]",
        "terseLabel": "Current liabilities:"
       }
      }
     },
     "localname": "LiabilitiesCurrentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LineOfCreditFacilityCommitmentFeePercentage": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.",
        "label": "Line of Credit Facility, Commitment Fee Percentage",
        "terseLabel": "Commitment Fee"
       }
      }
     },
     "localname": "LineOfCreditFacilityCommitmentFeePercentage",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity": {
     "auth_ref": [
      "r27"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.",
        "label": "Line of Credit Facility, Maximum Borrowing Capacity",
        "terseLabel": "Line of credit facility, maximum borrowing capacity"
       }
      }
     },
     "localname": "LineOfCreditFacilityMaximumBorrowingCapacity",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.",
        "label": "Line of Credit Facility, Unused Capacity, Commitment Fee Percentage",
        "terseLabel": "Unused line fee percentage"
       }
      }
     },
     "localname": "LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_LineOfCreditMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time, and under which borrowings outstanding may be either short-term or long-term, depending upon the particulars.",
        "label": "Line of Credit [Member]",
        "terseLabel": "Line of Credit"
       }
      }
     },
     "localname": "LineOfCreditMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LitigationStatusAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by status of pending, threatened, or settled litigation.",
        "label": "Litigation Status [Axis]",
        "terseLabel": "Litigation Status [Axis]"
       }
      }
     },
     "localname": "LitigationStatusAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LitigationStatusDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Status of pending, threatened, or settled litigation.",
        "label": "Litigation Status [Domain]",
        "terseLabel": "Litigation Status [Domain]"
       }
      }
     },
     "localname": "LitigationStatusDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LondonInterbankOfferedRateLIBORMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Interest rate at which a bank borrows funds from other banks in the London interbank market.",
        "label": "London Interbank Offered Rate (LIBOR) [Member]",
        "terseLabel": "LIBOR Rate",
        "verboseLabel": "LIBOR Rate"
       }
      }
     },
     "localname": "LondonInterbankOfferedRateLIBORMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LongTermDebt": {
     "auth_ref": [
      "r13",
      "r241",
      "r256",
      "r258",
      "r259",
      "r449",
      "r463"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails": {
       "order": 1.0,
       "parentTag": "lmb_LongTermDebtGrossAndLeaseObligation",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.",
        "label": "Long-term Debt",
        "terseLabel": "Debt outstanding",
        "verboseLabel": "Long term debt"
       }
      }
     },
     "localname": "LongTermDebt",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreementCBWarrantsDetails",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtAndCapitalLeaseObligations": {
     "auth_ref": [
      "r13"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of long-term debt and lease obligation, classified as noncurrent.",
        "label": "Long-term Debt and Lease Obligation",
        "terseLabel": "Long-term debt"
       }
      }
     },
     "localname": "LongTermDebtAndCapitalLeaseObligations",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtCurrent": {
     "auth_ref": [
      "r28"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.",
        "label": "Long-term Debt, Current Maturities",
        "negatedLabel": "Less - Current portion of long-term debt",
        "verboseLabel": "Current portion of long-term debt"
       }
      }
     },
     "localname": "LongTermDebtCurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtNoncurrent": {
     "auth_ref": [
      "r33"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.",
        "label": "Long-term Debt, Excluding Current Maturities",
        "terseLabel": "Long-term debt"
       }
      }
     },
     "localname": "LongTermDebtNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongtermDebtTypeAxis": {
     "auth_ref": [
      "r33"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of long-term debt.",
        "label": "Long-term Debt, Type [Axis]",
        "terseLabel": "Long-term Debt, Type [Axis]"
       }
      }
     },
     "localname": "LongtermDebtTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LongtermDebtTypeDomain": {
     "auth_ref": [
      "r33",
      "r211"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Type of long-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.",
        "label": "Long-term Debt, Type [Domain]",
        "terseLabel": "Long-term Debt, Type [Domain]"
       }
      }
     },
     "localname": "LongtermDebtTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LossContingenciesByNatureOfContingencyAxis": {
     "auth_ref": [
      "r199",
      "r200",
      "r201",
      "r203",
      "r204",
      "r205",
      "r207",
      "r209",
      "r210"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of existing condition, situation, or set of circumstances involving uncertainty as to possible loss to an enterprise that will ultimately be resolved when one or more future events occur or fail to occur.",
        "label": "Loss Contingency Nature [Axis]",
        "terseLabel": "Loss Contingency Nature [Axis]"
       }
      }
     },
     "localname": "LossContingenciesByNatureOfContingencyAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LossContingenciesLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "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.",
        "label": "Loss Contingencies [Line Items]",
        "terseLabel": "Loss Contingencies [Line Items]"
       }
      }
     },
     "localname": "LossContingenciesLineItems",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LossContingenciesTable": {
     "auth_ref": [
      "r199",
      "r200",
      "r201",
      "r203",
      "r204",
      "r205",
      "r207",
      "r209",
      "r210"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Discloses the specific components (such as the nature, name, and date) of the loss contingency and gives an estimate of the possible loss or range of loss, or states that a reasonable estimate cannot be made. Excludes environmental contingencies, warranties and unconditional purchase obligations.",
        "label": "Loss Contingencies [Table]",
        "terseLabel": "Loss Contingencies [Table]"
       }
      }
     },
     "localname": "LossContingenciesTable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LossContingencyAccrualAtCarryingValue": {
     "auth_ref": [
      "r199"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of loss contingency liability.",
        "label": "Loss Contingency Accrual",
        "terseLabel": "Loss contingency recorded"
       }
      }
     },
     "localname": "LossContingencyAccrualAtCarryingValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LossContingencyDamagesSoughtValue": {
     "auth_ref": [
      "r199",
      "r202",
      "r206"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The value (monetary amount) of the award the plaintiff seeks in the legal matter.",
        "label": "Loss Contingency, Damages Sought, Value",
        "terseLabel": "Loss contingency, damages sought, value"
       }
      }
     },
     "localname": "LossContingencyDamagesSoughtValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LossContingencyNatureDomain": {
     "auth_ref": [
      "r199",
      "r200",
      "r201",
      "r203",
      "r204",
      "r205",
      "r207",
      "r209",
      "r210"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "An existing condition, situation, or set of circumstances involving uncertainty as to possible loss to an enterprise that will ultimately be resolved when one or more future events occur or fail to occur. Resolution of the uncertainty may confirm the incurrence of a loss or impairment of an asset or the incurrence of a liability.",
        "label": "Loss Contingency, Nature [Domain]",
        "terseLabel": "Loss Contingency, Nature [Domain]"
       }
      }
     },
     "localname": "LossContingencyNatureDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MalpracticeInsuranceAnnualCoverageLimit": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Annual coverage limit provided by the insurance arrangement for malpractice claims.",
        "label": "Malpractice Insurance, Annual Coverage Limit",
        "terseLabel": "Malpractice insurance, annual coverage limit"
       }
      }
     },
     "localname": "MalpracticeInsuranceAnnualCoverageLimit",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivities": {
     "auth_ref": [
      "r72"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.",
        "label": "Net Cash Provided by (Used in) Financing Activities",
        "totalLabel": "Net cash provided by (used in) financing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Net Cash Provided by (Used in) Financing Activities [Abstract]",
        "terseLabel": "Cash flows from financing activities:"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivities": {
     "auth_ref": [
      "r72"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.",
        "label": "Net Cash Provided by (Used in) Investing Activities",
        "totalLabel": "Net cash used in investing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Net Cash Provided by (Used in) Investing Activities [Abstract]",
        "terseLabel": "Cash flows from investing activities:"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivities": {
     "auth_ref": [
      "r72",
      "r74",
      "r77"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.",
        "label": "Net Cash Provided by (Used in) Operating Activities",
        "totalLabel": "Net cash (used in) provided by operating activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Net Cash Provided by (Used in) Operating Activities [Abstract]",
        "verboseLabel": "Cash flows from operating activities:"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetIncomeLoss": {
     "auth_ref": [
      "r2",
      "r47",
      "r48",
      "r51",
      "r54",
      "r77",
      "r87",
      "r96",
      "r98",
      "r99",
      "r100",
      "r101",
      "r104",
      "r105",
      "r109",
      "r135",
      "r141",
      "r145",
      "r148",
      "r151",
      "r163",
      "r212",
      "r213",
      "r214",
      "r217",
      "r218",
      "r219",
      "r221",
      "r223",
      "r225",
      "r226",
      "r382",
      "r390",
      "r455",
      "r468"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.",
        "label": "Net Income (Loss) Attributable to Parent",
        "terseLabel": "Net income",
        "totalLabel": "Net income"
       }
      }
     },
     "localname": "NetIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity",
      "http://www.limbachinc.com/role/EarningsperShareScheduleofEarningsPerShareBasicandDilutedDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetIncomeLossAvailableToCommonStockholdersDilutedAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]",
        "terseLabel": "EPS numerator:"
       }
      }
     },
     "localname": "NetIncomeLossAvailableToCommonStockholdersDilutedAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofEarningsPerShareBasicandDilutedDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.",
        "label": "New Accounting Pronouncements, Policy [Policy Text Block]",
        "terseLabel": "Recently Adopted Accounting Standards and Recent Accounting Pronouncements"
       }
      }
     },
     "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/SignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_NonoperatingIncomeExpense": {
     "auth_ref": [
      "r62"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).",
        "label": "Nonoperating Income (Expense)",
        "totalLabel": "Total unallocated amounts"
       }
      }
     },
     "localname": "NonoperatingIncomeExpense",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NonoperatingIncomeExpenseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Nonoperating Income (Expense) [Abstract]",
        "verboseLabel": "Other (expenses) income:"
       }
      }
     },
     "localname": "NonoperatingIncomeExpenseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NumberOfOperatingSegments": {
     "auth_ref": [
      "r123"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.",
        "label": "Number of Operating Segments",
        "terseLabel": "Number of operating segments"
       }
      }
     },
     "localname": "NumberOfOperatingSegments",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/BusinessandOrganizationDetails",
      "http://www.limbachinc.com/role/OperatingSegmentsNarrativeDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_NumberOfReportableSegments": {
     "auth_ref": [
      "r123"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.",
        "label": "Number of Reportable Segments",
        "terseLabel": "Number of reportable segments"
       }
      }
     },
     "localname": "NumberOfReportableSegments",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/OperatingSegmentsNarrativeDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_OperatingExpenses": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.",
        "label": "Operating Expenses",
        "totalLabel": "Total operating expenses"
       }
      }
     },
     "localname": "OperatingExpenses",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingExpensesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Operating Expenses [Abstract]",
        "verboseLabel": "Operating expenses:"
       }
      }
     },
     "localname": "OperatingExpensesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingIncomeLoss": {
     "auth_ref": [
      "r135",
      "r141",
      "r145",
      "r148",
      "r151"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The net result for the period of deducting operating expenses from operating revenues.",
        "label": "Operating Income (Loss)",
        "totalLabel": "Operating income"
       }
      }
     },
     "localname": "OperatingIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseCost": {
     "auth_ref": [
      "r413",
      "r421"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_LeaseCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.",
        "label": "Operating Lease, Cost",
        "terseLabel": "Operating lease cost"
       }
      }
     },
     "localname": "OperatingLeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Lessee, Operating Lease, Liability, Payment, Due [Abstract]",
        "terseLabel": "Operating Leases"
       }
      }
     },
     "localname": "OperatingLeaseLiabilitiesPaymentsDueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesFutureMinimumLeaseCommitmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingLeaseLiabilityCurrent": {
     "auth_ref": [
      "r405"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      },
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails": {
       "order": 1.0,
       "parentTag": "lmb_LeaseLiability",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.",
        "label": "Operating Lease, Liability, Current",
        "terseLabel": "Current operating lease liabilities"
       }
      }
     },
     "localname": "OperatingLeaseLiabilityCurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets",
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilityNoncurrent": {
     "auth_ref": [
      "r405"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      },
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails": {
       "order": 3.0,
       "parentTag": "lmb_LeaseLiability",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.",
        "label": "Operating Lease, Liability, Noncurrent",
        "terseLabel": "Long-term operating lease liabilities"
       }
      }
     },
     "localname": "OperatingLeaseLiabilityNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets",
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasePayments": {
     "auth_ref": [
      "r409",
      "r415"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.",
        "label": "Operating Lease, Payments",
        "terseLabel": "Operating cash flows from operating leases"
       }
      }
     },
     "localname": "OperatingLeasePayments",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseRightOfUseAsset": {
     "auth_ref": [
      "r404"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 5.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      },
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails": {
       "order": 1.0,
       "parentTag": "lmb_LeaseRightOfUseAsset",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's right to use underlying asset under operating lease.",
        "label": "Operating Lease, Right-of-Use Asset",
        "terseLabel": "Operating lease right-of-use assets"
       }
      }
     },
     "localname": "OperatingLeaseRightOfUseAsset",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets",
      "http://www.limbachinc.com/role/LeasesSupplementalBalanceSheetsInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent": {
     "auth_ref": [
      "r418",
      "r421"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average discount rate for operating lease calculated at point in time.",
        "label": "Operating Lease, Weighted Average Discount Rate, Percent",
        "terseLabel": "Operating leases, weighted average remaining discount rate"
       }
      }
     },
     "localname": "OperatingLeaseWeightedAverageDiscountRatePercent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseTermsandDiscountRatesDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1": {
     "auth_ref": [
      "r417",
      "r421"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Operating Lease, Weighted Average Remaining Lease Term",
        "terseLabel": "Operating leases, weighted average remaining lease term"
       }
      }
     },
     "localname": "OperatingLeaseWeightedAverageRemainingLeaseTerm1",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseTermsandDiscountRatesDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_OperatingSegmentsMember": {
     "auth_ref": [
      "r140",
      "r141",
      "r142",
      "r143",
      "r145",
      "r151"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Identifies components of an entity that engage in business activities from which they may earn revenue and incur expenses, including transactions with other components of the same entity.",
        "label": "Operating Segments [Member]",
        "terseLabel": "Operating Segments"
       }
      }
     },
     "localname": "OperatingSegmentsMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OrderOrProductionBacklogMember": {
     "auth_ref": [
      "r373"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Orders, production or production backlog arising from contracts such as purchase or sales orders acquired in a business combination.",
        "label": "Order or Production Backlog [Member]",
        "terseLabel": "Backlog \u2013 Construction"
       }
      }
     },
     "localname": "OrderOrProductionBacklogMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Organization, Consolidation and Presentation of Financial Statements [Abstract]",
        "terseLabel": "Organization, Consolidation and Presentation of Financial Statements [Abstract]"
       }
      }
     },
     "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock": {
     "auth_ref": [
      "r3",
      "r379"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.",
        "label": "Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]",
        "terseLabel": "Business and Organization"
       }
      }
     },
     "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/BusinessandOrganization"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_OtherAssetsCurrent": {
     "auth_ref": [
      "r41",
      "r425"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 5.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of current assets classified as other.",
        "label": "Other Assets, Current",
        "verboseLabel": "Other current assets"
       }
      }
     },
     "localname": "OtherAssetsCurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherAssetsNoncurrent": {
     "auth_ref": [
      "r25"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 7.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of noncurrent assets classified as other.",
        "label": "Other Assets, Noncurrent",
        "verboseLabel": "Other assets"
       }
      }
     },
     "localname": "OtherAssetsNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherExpenses": {
     "auth_ref": [
      "r61",
      "r472"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of expense classified as other.",
        "label": "Other Expenses",
        "negatedTotalLabel": "Total other expenses"
       }
      }
     },
     "localname": "OtherExpenses",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherLiabilities": {
     "auth_ref": [
      "r452"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CommitmentsandContingenciesComponentsofSelfInsuranceLiabilityDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of liabilities classified as other.",
        "label": "Other Liabilities",
        "totalLabel": "Total liability shown in Accrued expenses and other current liabilities"
       }
      }
     },
     "localname": "OtherLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesComponentsofSelfInsuranceLiabilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherLiabilitiesCurrent": {
     "auth_ref": [
      "r8",
      "r9",
      "r30",
      "r425"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CommitmentsandContingenciesComponentsofSelfInsuranceLiabilityDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_OtherLiabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.",
        "label": "Other Liabilities, Current",
        "terseLabel": "Current liability \u2014 medical and dental"
       }
      }
     },
     "localname": "OtherLiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesComponentsofSelfInsuranceLiabilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherLiabilitiesNoncurrent": {
     "auth_ref": [
      "r34"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.",
        "label": "Other Liabilities, Noncurrent",
        "verboseLabel": "Other long-term liabilities"
       }
      }
     },
     "localname": "OtherLiabilitiesNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Other Noncash Investing and Financing Items [Abstract]",
        "verboseLabel": "Noncash investing and financing transactions:"
       }
      }
     },
     "localname": "OtherNoncashInvestingAndFinancingItemsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OverAllotmentOptionMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Right given to the underwriter to sell additional shares over the initial allotment.",
        "label": "Over-Allotment Option [Member]",
        "terseLabel": "Over-allotment Option"
       }
      }
     },
     "localname": "OverAllotmentOptionMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PaymentsForProceedsFromBusinessesAndInterestInAffiliates": {
     "auth_ref": [],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The net cash outflow or inflow associated with the acquisition or sale of a business segment during the period.",
        "label": "Payments for (Proceeds from) Businesses and Interest in Affiliates",
        "negatedLabel": "Advances to joint ventures"
       }
      }
     },
     "localname": "PaymentsForProceedsFromBusinessesAndInterestInAffiliates",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsOfDebtExtinguishmentCosts": {
     "auth_ref": [
      "r70"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 11.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.",
        "label": "Payment for Debt Extinguishment or Debt Prepayment Cost",
        "negatedLabel": "Prepayment penalty and other costs associated with early debt extinguishment",
        "terseLabel": "Prepayment penalty and other costs associated with early debt extinguishment"
       }
      }
     },
     "localname": "PaymentsOfDebtExtinguishmentCosts",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsOfDebtIssuanceCosts": {
     "auth_ref": [
      "r69"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.",
        "label": "Payments of Debt Issuance Costs",
        "negatedTerseLabel": "Payments of debt issuance costs"
       }
      }
     },
     "localname": "PaymentsOfDebtIssuanceCosts",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation": {
     "auth_ref": [
      "r67"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.",
        "label": "Payment, Tax Withholding, Share-based Payment Arrangement",
        "negatedLabel": "Taxes paid related to net-share settlement of equity awards"
       }
      }
     },
     "localname": "PaymentsRelatedToTaxWithholdingForShareBasedCompensation",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": {
     "auth_ref": [
      "r64"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.",
        "label": "Payments to Acquire Property, Plant, and Equipment",
        "negatedLabel": "Purchase of property and equipment"
       }
      }
     },
     "localname": "PaymentsToAcquirePropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PendingLitigationMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Risk of loss associated with the outcome of pending litigation against the entity, for example, but not limited to, litigation in arbitration or within the trial process.",
        "label": "Pending Litigation [Member]",
        "terseLabel": "Pending Litigation"
       }
      }
     },
     "localname": "PendingLitigationMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PlanNameAxis": {
     "auth_ref": [
      "r331",
      "r343"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by plan name for share-based payment arrangement.",
        "label": "Plan Name [Axis]",
        "terseLabel": "Plan Name [Axis]"
       }
      }
     },
     "localname": "PlanNameAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PlanNameDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Plan name for share-based payment arrangement.",
        "label": "Plan Name [Domain]",
        "terseLabel": "Plan Name [Domain]"
       }
      }
     },
     "localname": "PlanNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PreferredStockParOrStatedValuePerShare": {
     "auth_ref": [
      "r14",
      "r269"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.",
        "label": "Preferred Stock, Par or Stated Value Per Share",
        "terseLabel": "Preferred stock, par or stated value per share (in usd per shares)"
       }
      }
     },
     "localname": "PreferredStockParOrStatedValuePerShare",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_PreferredStockSharesAuthorized": {
     "auth_ref": [
      "r14"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.",
        "label": "Preferred Stock, Shares Authorized",
        "terseLabel": "Preferred stock, shares authorized (in shares)"
       }
      }
     },
     "localname": "PreferredStockSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PrimeRateMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Interest rate charged by financial institutions to their most creditworthy borrowers.",
        "label": "Prime Rate [Member]",
        "terseLabel": "Prime Rate"
       }
      }
     },
     "localname": "PrimeRateMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PrivatePlacementMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A private placement is a direct offering of securities to a limited number of sophisticated investors such as insurance companies, pension funds, mezzanine funds, stock funds and trusts.",
        "label": "Private Placement [Member]",
        "terseLabel": "2021 Public Offering"
       }
      }
     },
     "localname": "PrivatePlacementMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ProceedsFromIssuanceOfCommonStock": {
     "auth_ref": [
      "r65"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow from the additional capital contribution to the entity.",
        "label": "Proceeds from Issuance of Common Stock",
        "terseLabel": "Proceeds from the sale of common stock"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromIssuanceOfSecuredDebt": {
     "auth_ref": [
      "r66"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 9.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt.",
        "label": "Proceeds from Issuance of Secured Debt",
        "terseLabel": "Proceeds from Wintrust Term Loan"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfSecuredDebt",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromLongTermLinesOfCredit": {
     "auth_ref": [
      "r66"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 7.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.",
        "label": "Proceeds from Long-term Lines of Credit",
        "terseLabel": "Payments on Wintrust Term Loan"
       }
      }
     },
     "localname": "ProceedsFromLongTermLinesOfCredit",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment": {
     "auth_ref": [
      "r63"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "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.",
        "label": "Proceeds from Sale of Property, Plant, and Equipment",
        "terseLabel": "Proceeds from sale of property and equipment"
       }
      }
     },
     "localname": "ProceedsFromSaleOfPropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromStockPlans": {
     "auth_ref": [
      "r65"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow associated with the amount received from the stock plan during the period.",
        "label": "Proceeds from Stock Plans",
        "terseLabel": "Proceeds from contributions to Employee Stock Purchase Plan"
       }
      }
     },
     "localname": "ProceedsFromStockPlans",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromWarrantExercises": {
     "auth_ref": [
      "r65"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 8.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow associated with the amount received from holders exercising their stock warrants.",
        "label": "Proceeds from Warrant Exercises",
        "terseLabel": "Proceeds from the exercise of warrants"
       }
      }
     },
     "localname": "ProceedsFromWarrantExercises",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProjectMember": {
     "auth_ref": [
      "r443"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Planned program of work.",
        "label": "Project [Domain]",
        "terseLabel": "Project [Domain]"
       }
      }
     },
     "localname": "ProjectMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization": {
     "auth_ref": [
      "r43",
      "r190",
      "r412"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after accumulated depreciation and amortization, of property, plant, and equipment and finance lease right-of-use asset.",
        "label": "Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization",
        "terseLabel": "Property and equipment, net"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "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.",
        "label": "Property, Plant and Equipment [Line Items]",
        "terseLabel": "Property, Plant and Equipment [Line Items]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentLineItems",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ProvisionForDoubtfulAccounts": {
     "auth_ref": [
      "r56",
      "r167"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of expense (reversal of expense) for expected credit loss on accounts receivable.",
        "label": "Accounts Receivable, Credit Loss Expense (Reversal)",
        "terseLabel": "Provision for doubtful accounts"
       }
      }
     },
     "localname": "ProvisionForDoubtfulAccounts",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RepaymentsOfLongTermLinesOfCredit": {
     "auth_ref": [
      "r68"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.",
        "label": "Repayments of Long-term Lines of Credit",
        "negatedTerseLabel": "Payments on 2019 Revolving Credit Facility"
       }
      }
     },
     "localname": "RepaymentsOfLongTermLinesOfCredit",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RepaymentsOfSecuredDebt": {
     "auth_ref": [
      "r68"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 10.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt.",
        "label": "Repayments of Secured Debt",
        "negatedTerseLabel": "Payments of Term Loans"
       }
      }
     },
     "localname": "RepaymentsOfSecuredDebt",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ReportingUnitAmountOfFairValueInExcessOfCarryingAmount": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of fair value of reporting unit in excess of carrying amount.",
        "label": "Reporting Unit, Amount of Fair Value in Excess of Carrying Amount",
        "terseLabel": "Amount of fair value in excess of carrying amount of reporting unit"
       }
      }
     },
     "localname": "ReportingUnitAmountOfFairValueInExcessOfCarryingAmount",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ReportingUnitAxis": {
     "auth_ref": [
      "r174",
      "r175"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by reporting unit.",
        "label": "Reporting Unit [Axis]",
        "terseLabel": "Reporting Unit [Axis]"
       }
      }
     },
     "localname": "ReportingUnitAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ReportingUnitDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Level of reporting at which goodwill is tested for impairment.",
        "label": "Reporting Unit [Domain]",
        "terseLabel": "Reporting Unit [Domain]"
       }
      }
     },
     "localname": "ReportingUnitDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of fair value of reporting unit in excess of carrying amount.",
        "label": "Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount",
        "terseLabel": "Percentage of fair value in excess of carrying amount of reporting unit"
       }
      }
     },
     "localname": "ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue": {
     "auth_ref": [
      "r4",
      "r10",
      "r78",
      "r80"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Restricted Cash and Cash Equivalents, Current",
        "terseLabel": "Restricted cash",
        "verboseLabel": "Restricted cash"
       }
      }
     },
     "localname": "RestrictedCashAndCashEquivalentsAtCarryingValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesComponentsofSelfInsuranceLiabilityDetails",
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestrictedStockUnitsRSUMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share instrument which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met.",
        "label": "Restricted Stock Units (RSUs) [Member]",
        "terseLabel": "RSUs"
       }
      }
     },
     "localname": "RestrictedStockUnitsRSUMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RetainedEarningsAccumulatedDeficit": {
     "auth_ref": [
      "r18",
      "r292",
      "r347",
      "r425",
      "r464",
      "r480",
      "r481"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
        "label": "Retained Earnings (Accumulated Deficit)",
        "terseLabel": "Accumulated deficit"
       }
      }
     },
     "localname": "RetainedEarningsAccumulatedDeficit",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RetainedEarningsMember": {
     "auth_ref": [
      "r0",
      "r93",
      "r94",
      "r95",
      "r97",
      "r103",
      "r105",
      "r164",
      "r344",
      "r345",
      "r346",
      "r360",
      "r361",
      "r380",
      "r477",
      "r479"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
        "label": "Retained Earnings [Member]",
        "terseLabel": "Accumulated deficit"
       }
      }
     },
     "localname": "RetainedEarningsMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Revenue from Contract with Customer [Abstract]",
        "terseLabel": "Revenue from Contract with Customer [Abstract]"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerPolicyTextBlock": {
     "auth_ref": [
      "r82",
      "r308",
      "r309",
      "r310",
      "r311",
      "r312",
      "r313",
      "r314",
      "r315",
      "r318"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for revenue from contract with customer.",
        "label": "Revenue from Contract with Customer [Policy Text Block]",
        "terseLabel": "Revenue from Contract with Customers"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/SignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerTextBlock": {
     "auth_ref": [
      "r298",
      "r299",
      "r300",
      "r301",
      "r302",
      "r303",
      "r306",
      "r307",
      "r317",
      "r318"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.",
        "label": "Revenue from Contract with Customer [Text Block]",
        "terseLabel": "Revenue from Contracts with Customers"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomers"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RevenuePerformanceObligationDescriptionOfTiming": {
     "auth_ref": [
      "r299"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Description of timing for satisfying performance obligation in contract with customer. Includes, but is not limited to, as services are rendered, and upon shipment, delivery or completion of service.",
        "label": "Revenue, Performance Obligation, Description of Timing",
        "terseLabel": "Duration period of contracts with customers"
       }
      }
     },
     "localname": "RevenuePerformanceObligationDescriptionOfTiming",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RevenueRemainingPerformanceObligation": {
     "auth_ref": [
      "r304"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of transaction price allocated to performance obligation that has not been recognized as revenue.",
        "label": "Revenue, Remaining Performance Obligation, Amount",
        "verboseLabel": "Remaining performance obligations, amount"
       }
      }
     },
     "localname": "RevenueRemainingPerformanceObligation",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersRemainingPerformanceObligationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "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.",
        "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]",
        "terseLabel": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]"
       }
      }
     },
     "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersRemainingPerformanceObligationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1": {
     "auth_ref": [
      "r305"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period",
        "terseLabel": "Revenue, remaining performance obligations, expected timing of satisfaction, period"
       }
      }
     },
     "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersRemainingPerformanceObligationsDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis": {
     "auth_ref": [
      "r305"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Start date of time band for expected timing of satisfaction of remaining performance obligation, in YYYY-MM-DD format.",
        "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]",
        "terseLabel": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]"
       }
      }
     },
     "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersRemainingPerformanceObligationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of information about expected timing for satisfying remaining performance obligation.",
        "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]",
        "terseLabel": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]"
       }
      }
     },
     "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersRemainingPerformanceObligationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RevenueRemainingPerformanceObligationPercentage": {
     "auth_ref": [
      "r305"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of remaining performance obligation to total remaining performance obligation not recognized as revenue.",
        "label": "Revenue, Remaining Performance Obligation, Percentage",
        "terseLabel": "Revenue, remaining performance obligations, percentage"
       }
      }
     },
     "localname": "RevenueRemainingPerformanceObligationPercentage",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersRemainingPerformanceObligationsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_Revenues": {
     "auth_ref": [
      "r52",
      "r87",
      "r126",
      "r127",
      "r140",
      "r146",
      "r147",
      "r154",
      "r155",
      "r157",
      "r163",
      "r212",
      "r213",
      "r214",
      "r217",
      "r218",
      "r219",
      "r221",
      "r223",
      "r225",
      "r226",
      "r390",
      "r458"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_GrossProfit",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).",
        "label": "Revenues",
        "terseLabel": "Revenue"
       }
      }
     },
     "localname": "Revenues",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RevolvingCreditFacilityMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Arrangement in which loan proceeds can continuously be obtained following repayments, but the total amount borrowed cannot exceed a specified maximum amount.",
        "label": "Revolving Credit Facility [Member]",
        "terseLabel": "Revolving Credit Facility"
       }
      }
     },
     "localname": "RevolvingCreditFacilityMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability": {
     "auth_ref": [
      "r416",
      "r421"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase in right-of-use asset obtained in exchange for finance lease liability.",
        "label": "Right-of-Use Asset Obtained in Exchange for Finance Lease Liability",
        "terseLabel": "Right of use assets obtained in exchange for new finance lease liabilities"
       }
      }
     },
     "localname": "RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/LeasesSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability": {
     "auth_ref": [
      "r416",
      "r421"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase in right-of-use asset obtained in exchange for operating lease liability.",
        "label": "Right-of-Use Asset Obtained in Exchange for Operating Lease Liability",
        "terseLabel": "Right of use assets obtained in exchange for new operating lease liabilities"
       }
      }
     },
     "localname": "RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/LeasesSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SaleOfStockConsiderationReceivedOnTransaction": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cash received on stock transaction after deduction of issuance costs.",
        "label": "Sale of Stock, Consideration Received on Transaction",
        "terseLabel": "Proceeds from sale of shares, net of underwriters discounts and commissions"
       }
      }
     },
     "localname": "SaleOfStockConsiderationReceivedOnTransaction",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SaleOfStockNameOfTransactionDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sale of the entity's stock, including, but not limited to, initial public offering (IPO) and private placement.",
        "label": "Sale of Stock [Domain]",
        "terseLabel": "Sale of Stock [Domain]"
       }
      }
     },
     "localname": "SaleOfStockNameOfTransactionDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.",
        "label": "Sale of Stock, Number of Shares Issued in Transaction",
        "terseLabel": "Number of shares sold (in shares)"
       }
      }
     },
     "localname": "SaleOfStockNumberOfSharesIssuedInTransaction",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_SaleOfStockPricePerShare": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.",
        "label": "Sale of Stock, Price Per Share",
        "terseLabel": "Share price (in usd per share)"
       }
      }
     },
     "localname": "SaleOfStockPricePerShare",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable": {
     "auth_ref": [
      "r113"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule for securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by Antidilutive Securities.",
        "label": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]",
        "terseLabel": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]"
       }
      }
     },
     "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock": {
     "auth_ref": [
      "r113"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.",
        "label": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]",
        "terseLabel": "Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share"
       }
      }
     },
     "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDebtTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.",
        "label": "Schedule of Debt [Table Text Block]",
        "terseLabel": "Schedule of Long-Term Debt"
       }
      }
     },
     "localname": "ScheduleOfDebtTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/DebtTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": {
     "auth_ref": [
      "r112"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.",
        "label": "Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]",
        "terseLabel": "Schedule of Earnings Per Share, Basic and Diluted"
       }
      }
     },
     "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable": {
     "auth_ref": [
      "r179",
      "r183",
      "r438"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
        "label": "Schedule of Finite-Lived Intangible Assets [Table]",
        "terseLabel": "Schedule of Finite-Lived Intangible Assets [Table]"
       }
      }
     },
     "localname": "ScheduleOfFiniteLivedIntangibleAssetsTable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfGoodwillTable": {
     "auth_ref": [
      "r173",
      "r176"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule of goodwill and the changes during the year due to acquisition, sale, impairment or for other reasons.",
        "label": "Schedule of Goodwill [Table]",
        "terseLabel": "Schedule of Goodwill [Table]"
       }
      }
     },
     "localname": "ScheduleOfGoodwillTable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock": {
     "auth_ref": [
      "r173"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class.",
        "label": "Schedule of Intangible Assets and Goodwill [Table Text Block]",
        "terseLabel": "Schedule of Intangible Assets"
       }
      }
     },
     "localname": "ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense": {
     "auth_ref": [
      "r473"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the activity in the reserve for settling insured claims and expenses incurred in the claims settlement process for the period. The estimated liability includes the amount of money that will be required for future payments of (a) claims that have been reported to the insurer, (b) claims related to insured events that have occurred but that have not been reported to the insurer as of the date the liability is estimated, and (c) claim adjustment expenses. Claim adjustment expenses include costs incurred in the claim settlement process such as legal fees; outside adjuster fees; and costs to record, process, and adjust claims.",
        "label": "Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]",
        "terseLabel": "Schedule of Components of Self-Insurance"
       }
      }
     },
     "localname": "ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock": {
     "auth_ref": [
      "r336"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the changes in outstanding nonvested restricted stock units.",
        "label": "Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]",
        "terseLabel": "Schedule of Nonvested Restricted Stock Units Activity"
       }
      }
     },
     "localname": "ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfPropertyPlantAndEquipmentTable": {
     "auth_ref": [
      "r24",
      "r190"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of information about physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.",
        "label": "Property, Plant and Equipment [Table]",
        "terseLabel": "Property, Plant and Equipment [Table]"
       }
      }
     },
     "localname": "ScheduleOfPropertyPlantAndEquipmentTable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable": {
     "auth_ref": [
      "r135",
      "r138",
      "r144",
      "r173"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A table disclosing the profit or loss and total assets for each reportable segment of the entity. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.",
        "label": "Schedule of Segment Reporting Information, by Segment [Table]",
        "terseLabel": "Schedule of Segment Reporting Information, by Segment [Table]"
       }
      }
     },
     "localname": "ScheduleOfSegmentReportingInformationBySegmentTable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails",
      "http://www.limbachinc.com/role/OperatingSegmentsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock": {
     "auth_ref": [
      "r135",
      "r138",
      "r144",
      "r173"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.",
        "label": "Schedule of Segment Reporting Information, by Segment [Table Text Block]",
        "terseLabel": "Schedule of Condensed Consolidated Segment Information"
       }
      }
     },
     "localname": "ScheduleOfSegmentReportingInformationBySegmentTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/OperatingSegmentsTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": {
     "auth_ref": [
      "r331",
      "r343"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of information about share-based payment arrangement.",
        "label": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]",
        "terseLabel": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]"
       }
      }
     },
     "localname": "ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansTables"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfStockByClassTable": {
     "auth_ref": [
      "r36",
      "r84",
      "r120",
      "r121",
      "r266",
      "r267",
      "r268",
      "r269",
      "r270",
      "r271",
      "r272",
      "r274",
      "r278",
      "r283",
      "r286",
      "r287",
      "r288",
      "r289",
      "r290",
      "r291",
      "r292"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule detailing information related to equity by class of stock. Class of stock includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. It also includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity.",
        "label": "Schedule of Stock by Class [Table]",
        "terseLabel": "Schedule of Stock by Class [Table]"
       }
      }
     },
     "localname": "ScheduleOfStockByClassTable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails",
      "http://www.limbachinc.com/role/EquityOutstandingWarrantsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock": {
     "auth_ref": [
      "r293",
      "r330"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.",
        "label": "Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]",
        "terseLabel": "Schedule of Outstanding Warrants"
       }
      }
     },
     "localname": "ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SecuredDebtMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Collateralized debt obligation backed by, for example, but not limited to, pledge, mortgage or other lien on the entity's assets.",
        "label": "Secured Debt [Member]",
        "terseLabel": "Secured Debt"
       }
      }
     },
     "localname": "SecuredDebtMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/DebtLongTermDebtDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SegmentDomain": {
     "auth_ref": [
      "r122",
      "r126",
      "r127",
      "r128",
      "r129",
      "r130",
      "r131",
      "r132",
      "r133",
      "r134",
      "r135",
      "r136",
      "r137",
      "r140",
      "r141",
      "r142",
      "r143",
      "r145",
      "r146",
      "r147",
      "r148",
      "r149",
      "r151",
      "r157",
      "r194",
      "r195",
      "r474"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Components of an entity that engage in business activities from which they may earn revenue and incur expenses, including transactions with other components of the same entity.",
        "label": "Segments [Domain]",
        "terseLabel": "Segments [Domain]"
       }
      }
     },
     "localname": "SegmentDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails",
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails",
      "http://www.limbachinc.com/role/OperatingSegmentsNarrativeDetails",
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails",
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersRemainingPerformanceObligationsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SegmentReportingAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Segment Reporting [Abstract]",
        "terseLabel": "Segment Reporting [Abstract]"
       }
      }
     },
     "localname": "SegmentReportingAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_SegmentReportingDisclosureTextBlock": {
     "auth_ref": [
      "r122",
      "r124",
      "r125",
      "r135",
      "r139",
      "r145",
      "r149",
      "r150",
      "r151",
      "r152",
      "r154",
      "r156",
      "r157",
      "r158"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.",
        "label": "Segment Reporting Disclosure [Text Block]",
        "terseLabel": "Operating Segments"
       }
      }
     },
     "localname": "SegmentReportingDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/OperatingSegments"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SegmentReportingInformationLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "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.",
        "label": "Segment Reporting Information [Line Items]",
        "terseLabel": "Segment Reporting Information [Line Items]"
       }
      }
     },
     "localname": "SegmentReportingInformationLineItems",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails",
      "http://www.limbachinc.com/role/OperatingSegmentsNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SellingGeneralAndAdministrativeExpense": {
     "auth_ref": [
      "r60"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_OperatingExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.",
        "label": "Selling, General and Administrative Expense",
        "terseLabel": "Selling, general and administrative"
       }
      }
     },
     "localname": "SellingGeneralAndAdministrativeExpense",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SellingGeneralAndAdministrativeExpensesMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Primary financial statement caption encompassing selling, general and administrative expense.",
        "label": "Selling, General and Administrative Expenses [Member]",
        "terseLabel": "Selling, general and administrative expenses"
       }
      }
     },
     "localname": "SellingGeneralAndAdministrativeExpensesMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensation": {
     "auth_ref": [
      "r75"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of noncash expense for share-based payment arrangement.",
        "label": "Share-based Payment Arrangement, Noncash Expense",
        "terseLabel": "Stock-based compensation expense",
        "verboseLabel": "Recognized stock-based compensation"
       }
      }
     },
     "localname": "ShareBasedCompensation",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1": {
     "auth_ref": [
      "r332"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period",
        "verboseLabel": "Award vesting period"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate": {
     "auth_ref": [
      "r343"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Discount rate from fair value on purchase date that participants pay for shares.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date",
        "terseLabel": "Discount percentage from market price, beginning of purchase period"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod": {
     "auth_ref": [
      "r335"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period",
        "negatedLabel": "Forfeited, awards (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r340"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value",
        "terseLabel": "Forfeited, weighted-average grant date fair values (usd per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod": {
     "auth_ref": [
      "r338"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period",
        "terseLabel": "Granted, awards (in shares)",
        "verboseLabel": "Number of awards granted (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r338"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value",
        "terseLabel": "Granted, weighted-average grant date fair values (usd per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": {
     "auth_ref": [
      "r337"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number",
        "periodEndLabel": "Unvested at September 30, 2021 (in shares)",
        "periodStartLabel": "Unvested at December 31, 2020 (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]",
        "terseLabel": "Awards"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r337"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value",
        "periodEndLabel": "Unvested at September 30, 2021 (usd per share)",
        "periodStartLabel": "Unvested at December 31, 2020 (usd per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]",
        "terseLabel": "Weighted-Average Grant Date Fair Value"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod": {
     "auth_ref": [
      "r339"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period",
        "negatedLabel": "Vested, awards (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue": {
     "auth_ref": [
      "r341"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value",
        "terseLabel": "Fair value of awards vested"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r339"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value",
        "terseLabel": "Vested, weighted-average grant date fair values (usd per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "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.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]",
        "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansTables"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of additional shares authorized for issuance under share-based payment arrangement.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized",
        "terseLabel": "Number of additional shares authorized under share-based compensation plan (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized": {
     "auth_ref": [
      "r333"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares authorized for issuance under share-based payment arrangement.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized",
        "terseLabel": "Number of shares authorized (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant": {
     "auth_ref": [
      "r343"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant",
        "terseLabel": "Shares remaining available for future issuance (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": {
     "auth_ref": [
      "r330",
      "r334"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Award under share-based payment arrangement.",
        "label": "Award Type [Domain]",
        "terseLabel": "Award Type [Domain]"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansMRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansNarrativeDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansPRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansRSUsActivityDetails",
      "http://www.limbachinc.com/role/ManagementIncentivePlansTables"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Purchase price of common stock expressed as a percentage of its fair value.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent",
        "terseLabel": "Purchase price of common stock, percent of market price (no less than)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_SharesOutstanding": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares issued which are neither cancelled nor held in the treasury.",
        "label": "Shares, Outstanding",
        "periodEndLabel": "Ending balance (in shares)",
        "periodStartLabel": "Beginning balance (in shares)"
       }
      }
     },
     "localname": "SharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_SignificantAccountingPoliciesTextBlock": {
     "auth_ref": [
      "r81",
      "r92"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for all significant accounting policies of the reporting entity.",
        "label": "Significant Accounting Policies [Text Block]",
        "terseLabel": "Significant Accounting Policies"
       }
      }
     },
     "localname": "SignificantAccountingPoliciesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/SignificantAccountingPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_StatementBusinessSegmentsAxis": {
     "auth_ref": [
      "r1",
      "r122",
      "r126",
      "r127",
      "r128",
      "r129",
      "r130",
      "r131",
      "r132",
      "r133",
      "r134",
      "r135",
      "r136",
      "r137",
      "r140",
      "r141",
      "r142",
      "r143",
      "r145",
      "r146",
      "r147",
      "r148",
      "r149",
      "r151",
      "r157",
      "r173",
      "r192",
      "r194",
      "r195",
      "r474"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by business segments.",
        "label": "Segments [Axis]",
        "terseLabel": "Segments [Axis]"
       }
      }
     },
     "localname": "StatementBusinessSegmentsAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails",
      "http://www.limbachinc.com/role/OperatingSegmentsCondensedConsolidatedSegmentInformationDetails",
      "http://www.limbachinc.com/role/OperatingSegmentsNarrativeDetails",
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersNarrativeDetails",
      "http://www.limbachinc.com/role/RevenuefromContractswithCustomersRemainingPerformanceObligationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementEquityComponentsAxis": {
     "auth_ref": [
      "r0",
      "r39",
      "r49",
      "r50",
      "r51",
      "r93",
      "r94",
      "r95",
      "r97",
      "r103",
      "r105",
      "r119",
      "r164",
      "r285",
      "r292",
      "r344",
      "r345",
      "r346",
      "r360",
      "r361",
      "r380",
      "r392",
      "r393",
      "r394",
      "r395",
      "r396",
      "r397",
      "r477",
      "r478",
      "r479",
      "r493"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by component of equity.",
        "label": "Equity Components [Axis]",
        "terseLabel": "Equity Components [Axis]"
       }
      }
     },
     "localname": "StatementEquityComponentsAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "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.",
        "label": "Statement [Line Items]",
        "terseLabel": "Statement [Line Items]"
       }
      }
     },
     "localname": "StatementLineItems",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfCashFlowsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement of Cash Flows [Abstract]",
        "terseLabel": "Statement of Cash Flows [Abstract]"
       }
      }
     },
     "localname": "StatementOfCashFlowsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfFinancialPositionAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement of Financial Position [Abstract]",
        "terseLabel": "Statement of Financial Position [Abstract]"
       }
      }
     },
     "localname": "StatementOfFinancialPositionAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfStockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement of Stockholders' Equity [Abstract]",
        "terseLabel": "Statement of Stockholders' Equity [Abstract]"
       }
      }
     },
     "localname": "StatementOfStockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementTable": {
     "auth_ref": [
      "r93",
      "r94",
      "r95",
      "r119",
      "r437"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule reflecting a Statement of Income, Statement of Cash Flows, Statement of Financial Position, Statement of Shareholders' Equity and Other Comprehensive Income, or other statement as needed.",
        "label": "Statement [Table]",
        "terseLabel": "Statement [Table]"
       }
      }
     },
     "localname": "StatementTable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows",
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities": {
     "auth_ref": [
      "r38",
      "r245",
      "r285",
      "r286",
      "r292"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares issued during the period as a result of the conversion of convertible securities.",
        "label": "Stock Issued During Period, Shares, Conversion of Convertible Securities",
        "terseLabel": "Shares issued related to exercise of warrants (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans": {
     "auth_ref": [
      "r14",
      "r15",
      "r285",
      "r292"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares issued during the period as a result of an employee stock purchase plan.",
        "label": "Stock Issued During Period, Shares, Employee Stock Purchase Plans",
        "terseLabel": "Stock issued related to employee stock purchase plan (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesNewIssues": {
     "auth_ref": [
      "r14",
      "r15",
      "r285",
      "r292"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of new stock issued during the period.",
        "label": "Stock Issued During Period, Shares, New Issues",
        "terseLabel": "Shares issued related to offering (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesNewIssues",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures": {
     "auth_ref": [
      "r14",
      "r15",
      "r285",
      "r292"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.",
        "label": "Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures",
        "terseLabel": "Shares issued related to vested restricted stock units (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation": {
     "auth_ref": [
      "r14",
      "r15",
      "r285",
      "r292"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP).",
        "label": "Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture",
        "terseLabel": "Shares issued (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesShareBasedCompensation",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities": {
     "auth_ref": [
      "r39",
      "r285",
      "r292"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The gross value of stock issued during the period upon the conversion of convertible securities.",
        "label": "Stock Issued During Period, Value, Conversion of Convertible Securities",
        "terseLabel": "Shares issued related to the exercise of warrants"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueConversionOfConvertibleSecurities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan": {
     "auth_ref": [
      "r14",
      "r15",
      "r285",
      "r292"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate change in value for stock issued during the period as a result of employee stock purchase plan.",
        "label": "Stock Issued During Period, Value, Employee Stock Purchase Plan",
        "terseLabel": "Shares issued related to employee stock purchase plan"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueEmployeeStockPurchasePlan",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueNewIssues": {
     "auth_ref": [
      "r14",
      "r15",
      "r285",
      "r292"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.",
        "label": "Stock Issued During Period, Value, New Issues",
        "terseLabel": "Shares issued related to sale of common stock"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueNewIssues",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures": {
     "auth_ref": [
      "r285",
      "r292"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Value of stock related to Restricted Stock Awards issued during the period, net of the stock value of such awards forfeited.",
        "label": "Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures",
        "terseLabel": "Shares issued related to vested restricted stock units"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquity": {
     "auth_ref": [
      "r15",
      "r19",
      "r20",
      "r87",
      "r162",
      "r163",
      "r390",
      "r425"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.",
        "label": "Stockholders' Equity Attributable to Parent",
        "periodEndLabel": "Ending balance",
        "periodStartLabel": "Beginning balance",
        "totalLabel": "Total stockholders\u2019 equity"
       }
      }
     },
     "localname": "StockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets",
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Stockholders' Equity Attributable to Parent [Abstract]",
        "terseLabel": "STOCKHOLDERS\u2019 EQUITY"
       }
      }
     },
     "localname": "StockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockholdersEquityNoteDisclosureTextBlock": {
     "auth_ref": [
      "r85",
      "r270",
      "r273",
      "r274",
      "r275",
      "r276",
      "r277",
      "r278",
      "r279",
      "r280",
      "r281",
      "r282",
      "r284",
      "r292",
      "r294"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.",
        "label": "Stockholders' Equity Note Disclosure [Text Block]",
        "terseLabel": "Equity"
       }
      }
     },
     "localname": "StockholdersEquityNoteDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Equity"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SubsidiarySaleOfStockAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of sale of the entity's stock.",
        "label": "Sale of Stock [Axis]",
        "terseLabel": "Sale of Stock [Axis]"
       }
      }
     },
     "localname": "SubsidiarySaleOfStockAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EquityNarrativeDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SupplementalCashFlowElementsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Supplemental Cash Flow Elements [Abstract]",
        "verboseLabel": "Supplemental disclosures of cash flow information"
       }
      }
     },
     "localname": "SupplementalCashFlowElementsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SuretyBondMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "An obligation arising from a three-party agreement that legally binds together a principal who needs the bond, an obligee who requires the bond and a surety company that sells the bond.",
        "label": "Surety Bond [Member]",
        "terseLabel": "Surety Bond"
       }
      }
     },
     "localname": "SuretyBondMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_TradeNamesMember": {
     "auth_ref": [
      "r372"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Rights acquired through registration of a business name to gain or protect exclusive use thereof.",
        "label": "Trade Names [Member]",
        "terseLabel": "Trade name"
       }
      }
     },
     "localname": "TradeNamesMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/GoodwillandIntangiblesIntangibleAssetsDetails",
      "http://www.limbachinc.com/role/GoodwillandIntangiblesNarrativeDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_UnrecognizedTaxBenefits": {
     "auth_ref": [
      "r349",
      "r355"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of unrecognized tax benefits.",
        "label": "Unrecognized Tax Benefits",
        "terseLabel": "Unrecognized tax benefits"
       }
      }
     },
     "localname": "UnrecognizedTaxBenefits",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/IncomeTaxesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_VariableLeaseCost": {
     "auth_ref": [
      "r414",
      "r421"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.",
        "label": "Variable Lease, Cost",
        "terseLabel": "Variable lease costs"
       }
      }
     },
     "localname": "VariableLeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/LeasesSummaryofLeaseCostsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_VariableRateAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of variable rate.",
        "label": "Variable Rate [Axis]",
        "terseLabel": "Variable Rate [Axis]"
       }
      }
     },
     "localname": "VariableRateAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_VariableRateDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index.",
        "label": "Variable Rate [Domain]",
        "terseLabel": "Variable Rate [Domain]"
       }
      }
     },
     "localname": "VariableRateDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019ABLCreditAgreementDetails",
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreement2019TermLoansDetails",
      "http://www.limbachinc.com/role/DebtAdditionalMarginandCommitmentFeesPayableDetails",
      "http://www.limbachinc.com/role/DebtWintrustTermandRevolvingLoansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_WarrantsAndRightsOutstanding": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.",
        "label": "Warrants and Rights Outstanding",
        "terseLabel": "Warrants liability"
       }
      }
     },
     "localname": "WarrantsAndRightsOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreementCBWarrantsDetails",
      "http://www.limbachinc.com/role/FairValueMeasurementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_WarrantsAndRightsOutstandingTerm": {
     "auth_ref": [
      "r386"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Warrants and Rights Outstanding, Term",
        "terseLabel": "Warrants tem"
       }
      }
     },
     "localname": "WarrantsAndRightsOutstandingTerm",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/Debt2019RefinancingAgreementCBWarrantsDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment": {
     "auth_ref": [
      "r112"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/EarningsperShareScheduleofEarningsPerShareBasicandDilutedDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding",
       "weight": 1.0
      }
     },
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.",
        "label": "Weighted Average Number Diluted Shares Outstanding Adjustment",
        "verboseLabel": "Impact of dilutive securities (in shares)"
       }
      }
     },
     "localname": "WeightedAverageNumberDilutedSharesOutstandingAdjustment",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofEarningsPerShareBasicandDilutedDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": {
     "auth_ref": [
      "r107",
      "r112"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/EarningsperShareScheduleofEarningsPerShareBasicandDilutedDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.",
        "label": "Weighted Average Number of Shares Outstanding, Diluted",
        "totalLabel": "Weighted average shares outstanding - diluted (in shares)",
        "verboseLabel": "Diluted (in shares)"
       }
      }
     },
     "localname": "WeightedAverageNumberOfDilutedSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/EarningsperShareScheduleofEarningsPerShareBasicandDilutedDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Weighted Average Number of Shares Outstanding, Diluted [Abstract]",
        "terseLabel": "EPS denominator:"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/EarningsperShareScheduleofEarningsPerShareBasicandDilutedDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": {
     "auth_ref": [
      "r106",
      "r112"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/EarningsperShareScheduleofEarningsPerShareBasicandDilutedDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding",
       "weight": 1.0
      }
     },
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.",
        "label": "Weighted Average Number of Shares Outstanding, Basic",
        "terseLabel": "Weighted average shares outstanding - basic (in shares)",
        "verboseLabel": "Basic (in shares)"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingBasic",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations",
      "http://www.limbachinc.com/role/EarningsperShareScheduleofEarningsPerShareBasicandDilutedDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Weighted Average Number of Shares Outstanding Reconciliation [Abstract]",
        "verboseLabel": "Weighted average number of shares outstanding:"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CondensedConsolidatedStatementsofOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_WorkersCompensationLiabilityCurrent": {
     "auth_ref": [
      "r30"
     ],
     "calculation": {
      "http://www.limbachinc.com/role/CommitmentsandContingenciesComponentsofSelfInsuranceLiabilityDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherLiabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of obligations and payables pertaining to claims incurred of a workers compensation nature. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Workers' Compensation Liability, Current",
        "terseLabel": "Current liability \u2014 workers\u2019 compensation and general liability"
       }
      }
     },
     "localname": "WorkersCompensationLiabilityCurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.limbachinc.com/role/CommitmentsandContingenciesComponentsofSelfInsuranceLiabilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    }
   },
   "unitCount": 8
  }
 },
 "std_ref": {
  "r0": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "105",
   "URI": "http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695"
  },
  "r1": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760"
  },
  "r10": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r100": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794"
  },
  "r101": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794"
  },
  "r102": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794"
  },
  "r103": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794"
  },
  "r104": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22658-107794"
  },
  "r105": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22663-107794"
  },
  "r106": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1448-109256"
  },
  "r107": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1505-109256"
  },
  "r108": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1252-109256"
  },
  "r109": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256"
  },
  "r11": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(19))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r110": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256"
  },
  "r111": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1337-109256"
  },
  "r112": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257"
  },
  "r113": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257"
  },
  "r114": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257"
  },
  "r115": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537"
  },
  "r116": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125512782&loc=d3e3842-109258"
  },
  "r117": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "52",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125512782&loc=d3e4984-109258"
  },
  "r118": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "260",
   "URI": "http://asc.fasb.org/topic&trid=2144383"
  },
  "r119": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "272",
   "URI": "http://asc.fasb.org/extlink&oid=125520817&loc=d3e70191-108054"
  },
  "r12": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(20))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r120": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "272",
   "URI": "http://asc.fasb.org/extlink&oid=125520817&loc=d3e70229-108054"
  },
  "r121": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "272",
   "URI": "http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055"
  },
  "r122": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8657-108599"
  },
  "r123": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599"
  },
  "r124": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599"
  },
  "r125": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599"
  },
  "r126": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r127": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r128": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r129": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r13": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(22))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r130": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r131": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r132": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r133": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r134": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(j)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r135": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r136": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8813-108599"
  },
  "r137": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8813-108599"
  },
  "r138": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8813-108599"
  },
  "r139": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "26",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8844-108599"
  },
  "r14": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(28))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r140": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599"
  },
  "r141": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599"
  },
  "r142": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599"
  },
  "r143": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599"
  },
  "r144": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599"
  },
  "r145": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "31",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599"
  },
  "r146": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599"
  },
  "r147": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599"
  },
  "r148": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599"
  },
  "r149": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599"
  },
  "r15": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(29))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r150": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599"
  },
  "r151": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599"
  },
  "r152": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "34",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8981-108599"
  },
  "r153": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8475-108599"
  },
  "r154": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "40",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599"
  },
  "r155": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "41",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599"
  },
  "r156": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "41",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599"
  },
  "r157": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "42",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599"
  },
  "r158": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "280",
   "URI": "http://asc.fasb.org/topic&trid=2134510"
  },
  "r159": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522"
  },
  "r16": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(3))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r160": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=124259787&loc=d3e4531-111522"
  },
  "r161": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=123577603&loc=d3e5074-111524"
  },
  "r162": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 4.E)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=122038336&loc=d3e74512-122707"
  },
  "r163": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571"
  },
  "r164": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437"
  },
  "r165": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446"
  },
  "r166": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447"
  },
  "r167": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447"
  },
  "r168": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(f)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447"
  },
  "r169": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266"
  },
  "r17": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r170": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13777-109266"
  },
  "r171": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975"
  },
  "r172": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(e)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267"
  },
  "r173": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267"
  },
  "r174": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=SL108378252-109267"
  },
  "r175": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267"
  },
  "r176": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267"
  },
  "r177": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274"
  },
  "r178": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274"
  },
  "r179": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275"
  },
  "r18": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(3))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r180": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275"
  },
  "r181": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(d)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275"
  },
  "r182": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "((a)(1),(b))",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r183": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r184": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(1)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r185": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(2)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r186": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r187": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(d)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r188": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275"
  },
  "r189": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "350",
   "URI": "http://asc.fasb.org/topic&trid=2144416"
  },
  "r19": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r190": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r191": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230"
  },
  "r192": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230"
  },
  "r193": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
  },
  "r194": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
  },
  "r195": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 5.P.4(d))",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
  },
  "r196": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "440",
   "URI": "http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308"
  },
  "r197": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "440",
   "URI": "http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308"
  },
  "r198": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "440",
   "URI": "http://asc.fasb.org/topic&trid=2144648"
  },
  "r199": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349"
  },
  "r2": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760"
  },
  "r20": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(31))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r200": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14615-108349"
  },
  "r201": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14394-108349"
  },
  "r202": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349"
  },
  "r203": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349"
  },
  "r204": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14453-108349"
  },
  "r205": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14472-108349"
  },
  "r206": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349"
  },
  "r207": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349"
  },
  "r208": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "450",
   "URI": "http://asc.fasb.org/topic&trid=2127136"
  },
  "r209": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "460",
   "URI": "http://asc.fasb.org/extlink&oid=124440162&loc=d3e12021-110248"
  },
  "r21": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(32))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r210": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "460",
   "URI": "http://asc.fasb.org/extlink&oid=124440162&loc=d3e12053-110248"
  },
  "r211": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123465755&loc=SL6230698-112601"
  },
  "r212": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(i))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756"
  },
  "r213": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(ii))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756"
  },
  "r214": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(iii)(A))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756"
  },
  "r215": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(iii)(B))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756"
  },
  "r216": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(iii))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756"
  },
  "r217": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(iv))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756"
  },
  "r218": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(5))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756"
  },
  "r219": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(4)(i))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756"
  },
  "r22": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(4)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r220": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(4)(iii)(A)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756"
  },
  "r221": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(4)(iii)(A))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756"
  },
  "r222": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(4)(iii)(B)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756"
  },
  "r223": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(4)(iii)(B))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756"
  },
  "r224": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(4)(iii)(C))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756"
  },
  "r225": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(4)(iv))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756"
  },
  "r226": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(5))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756"
  },
  "r227": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611"
  },
  "r228": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611"
  },
  "r229": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611"
  },
  "r23": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.1)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r230": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611"
  },
  "r231": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(e)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611"
  },
  "r232": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(f)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611"
  },
  "r233": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611"
  },
  "r234": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(h)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611"
  },
  "r235": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(i)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611"
  },
  "r236": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611"
  },
  "r237": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1C",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495334-112611"
  },
  "r238": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1C",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495334-112611"
  },
  "r239": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1C",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495334-112611"
  },
  "r24": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.14)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r240": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611"
  },
  "r241": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611"
  },
  "r242": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611"
  },
  "r243": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1E",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611"
  },
  "r244": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1E",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611"
  },
  "r245": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1E",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611"
  },
  "r246": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1E",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611"
  },
  "r247": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1F",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611"
  },
  "r248": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1F",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611"
  },
  "r249": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1F",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(1)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611"
  },
  "r25": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.17)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r250": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1F",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(2)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611"
  },
  "r251": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1I",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611"
  },
  "r252": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1I",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611"
  },
  "r253": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1I",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611"
  },
  "r254": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1I",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611"
  },
  "r255": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(2)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870"
  },
  "r256": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(3)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870"
  },
  "r257": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466204&loc=SL6036836-161870"
  },
  "r258": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "69B",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612"
  },
  "r259": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "69C",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612"
  },
  "r26": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r260": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "69E",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495743-112612"
  },
  "r261": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "69F",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495745-112612"
  },
  "r262": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "40",
   "SubTopic": "50",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123467658&loc=d3e12317-112629"
  },
  "r263": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "40",
   "SubTopic": "50",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123467658&loc=d3e12355-112629"
  },
  "r264": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "470",
   "URI": "http://asc.fasb.org/topic&trid=2208564"
  },
  "r265": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "10",
   "Topic": "480",
   "URI": "http://asc.fasb.org/extlink&oid=109262497&loc=d3e20148-110875"
  },
  "r266": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(CFRR 211.02)",
   "Topic": "480",
   "URI": "http://asc.fasb.org/extlink&oid=122040564&loc=d3e177068-122764"
  },
  "r267": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=65888546&loc=d3e21300-112643"
  },
  "r268": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21553-112644"
  },
  "r269": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644"
  },
  "r27": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19(b),22(b))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r270": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644"
  },
  "r271": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644"
  },
  "r272": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644"
  },
  "r273": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644"
  },
  "r274": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644"
  },
  "r275": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(i)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644"
  },
  "r276": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644"
  },
  "r277": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644"
  },
  "r278": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644"
  },
  "r279": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644"
  },
  "r28": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19,20)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r280": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496180-112644"
  },
  "r281": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644"
  },
  "r282": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644"
  },
  "r283": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644"
  },
  "r284": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644"
  },
  "r285": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644"
  },
  "r286": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644"
  },
  "r287": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21484-112644"
  },
  "r288": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21488-112644"
  },
  "r289": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21506-112644"
  },
  "r29": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19-26)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r290": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21521-112644"
  },
  "r291": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21538-112644"
  },
  "r292": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.3-04)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770"
  },
  "r293": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "50",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775"
  },
  "r294": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "505",
   "URI": "http://asc.fasb.org/topic&trid=2208762"
  },
  "r295": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123360276&loc=SL49130531-203044"
  },
  "r296": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123360276&loc=SL49130532-203044"
  },
  "r297": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123360276&loc=SL49130533-203044"
  },
  "r298": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045"
  },
  "r299": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045"
  },
  "r3": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "205",
   "URI": "http://asc.fasb.org/topic&trid=2122149"
  },
  "r30": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.20)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r300": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045"
  },
  "r301": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045"
  },
  "r302": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045"
  },
  "r303": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045"
  },
  "r304": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045"
  },
  "r305": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(1)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045"
  },
  "r306": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(2)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045"
  },
  "r307": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130558-203045"
  },
  "r308": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130561-203045"
  },
  "r309": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130563-203045"
  },
  "r31": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.21)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r310": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130563-203045"
  },
  "r311": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "19",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130564-203045"
  },
  "r312": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130566-203045"
  },
  "r313": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130566-203045"
  },
  "r314": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130566-203045"
  },
  "r315": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130566-203045"
  },
  "r316": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130549-203045"
  },
  "r317": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130550-203045"
  },
  "r318": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "606",
   "URI": "http://asc.fasb.org/topic&trid=49130388"
  },
  "r319": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(i)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r32": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.22(a)(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r320": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(ii)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r321": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(01)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r322": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r323": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)(A)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r324": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)(B)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r325": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)(C)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r326": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(03)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r327": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921"
  },
  "r328": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Subparagraph": "(d)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947"
  },
  "r329": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "80",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=35742348&loc=SL14450788-114948"
  },
  "r33": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.22)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r330": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901"
  },
  "r331": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901"
  },
  "r332": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r333": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(3)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r334": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a),(g)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r335": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(3)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r336": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r337": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(i)-(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r338": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r339": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r34": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.24)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r340": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(3)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r341": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r342": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r343": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r344": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r345": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(f)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r346": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r347": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(g)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r348": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "718",
   "URI": "http://asc.fasb.org/topic&trid=2228938"
  },
  "r349": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=123427490&loc=SL37586934-109318"
  },
  "r35": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.25)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r350": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=123427490&loc=d3e31917-109318"
  },
  "r351": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=123427490&loc=d3e31931-109318"
  },
  "r352": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32672-109319"
  },
  "r353": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319"
  },
  "r354": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32705-109319"
  },
  "r355": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319"
  },
  "r356": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319"
  },
  "r357": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319"
  },
  "r358": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32857-109319"
  },
  "r359": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319"
  },
  "r36": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.28,29)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r360": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)(2)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277"
  },
  "r361": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)(3)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277"
  },
  "r362": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB TOPIC 6.I.5.Q1)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817"
  },
  "r363": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB TOPIC 6.I.7)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817"
  },
  "r364": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 6.I.7)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817"
  },
  "r365": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 6.I.Fact.1)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817"
  },
  "r366": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 6.I.Fact.2)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817"
  },
  "r367": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 11.C)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330215-122817"
  },
  "r368": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=123586238&loc=d3e38679-109324"
  },
  "r369": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "270",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338"
  },
  "r37": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r370": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331"
  },
  "r371": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "740",
   "URI": "http://asc.fasb.org/topic&trid=2144680"
  },
  "r372": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=123410050&loc=d3e5263-128473"
  },
  "r373": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=123410050&loc=d3e5333-128473"
  },
  "r374": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=123410050&loc=d3e5333-128473"
  },
  "r375": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988"
  },
  "r376": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988"
  },
  "r377": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bb)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=123419778&loc=d3e5710-111685"
  },
  "r378": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=123419778&loc=d3e5710-111685"
  },
  "r379": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "810",
   "URI": "http://asc.fasb.org/topic&trid=2197479"
  },
  "r38": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29-30)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r380": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(e)(3)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011"
  },
  "r381": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(e)(4)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011"
  },
  "r382": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(f)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011"
  },
  "r383": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258"
  },
  "r384": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258"
  },
  "r385": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bb)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258"
  },
  "r386": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)(2)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258"
  },
  "r387": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258"
  },
  "r388": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19279-110258"
  },
  "r389": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611"
  },
  "r39": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29-31)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r390": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612"
  },
  "r391": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "230",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=123444420&loc=d3e33268-110906"
  },
  "r392": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900"
  },
  "r393": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r394": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(b)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r395": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(c)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r396": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(d)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r397": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901"
  },
  "r398": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=124435984&loc=d3e28541-108399"
  },
  "r399": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399"
  },
  "r4": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765"
  },
  "r40": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.3(a)(4))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r400": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399"
  },
  "r401": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629"
  },
  "r402": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400"
  },
  "r403": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "40",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123386189&loc=SL77918607-209975"
  },
  "r404": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977"
  },
  "r405": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977"
  },
  "r406": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977"
  },
  "r407": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918643-209977"
  },
  "r408": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918643-209977"
  },
  "r409": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918643-209977"
  },
  "r41": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.8)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r410": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(3)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980"
  },
  "r411": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980"
  },
  "r412": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980"
  },
  "r413": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980"
  },
  "r414": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980"
  },
  "r415": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(1)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980"
  },
  "r416": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(2)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980"
  },
  "r417": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(3)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980"
  },
  "r418": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(4)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980"
  },
  "r419": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980"
  },
  "r42": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.9)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r420": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980"
  },
  "r421": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "53",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971"
  },
  "r422": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/subtopic&trid=77888251"
  },
  "r423": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "852",
   "URI": "http://asc.fasb.org/extlink&oid=124433192&loc=SL2890621-112765"
  },
  "r424": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "852",
   "URI": "http://asc.fasb.org/extlink&oid=124433192&loc=SL2890621-112765"
  },
  "r425": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "852",
   "URI": "http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766"
  },
  "r426": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r427": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r428": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r429": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r43": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX210.5-02(13))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r430": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r431": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r432": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r433": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r434": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r435": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "910",
   "URI": "http://asc.fasb.org/extlink&oid=123353855&loc=SL119991595-234733"
  },
  "r436": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "310",
   "Subparagraph": "(b)",
   "Topic": "912",
   "URI": "http://asc.fasb.org/extlink&oid=123371682&loc=d3e55415-109406"
  },
  "r437": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 11.L)",
   "Topic": "924",
   "URI": "http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856"
  },
  "r438": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "926",
   "URI": "http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959"
  },
  "r439": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "340",
   "Topic": "928",
   "URI": "http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004"
  },
  "r44": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
  },
  "r440": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-10(a)(32))",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=123726172&loc=d3e511914-122862"
  },
  "r441": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-10(c)(3)(ii)(A))",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=123726172&loc=d3e511914-122862"
  },
  "r442": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-10(c)(7)(ii))",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=123726172&loc=d3e511914-122862"
  },
  "r443": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=123377692&loc=SL6806780-109447"
  },
  "r444": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "20",
   "Topic": "940",
   "URI": "http://asc.fasb.org/extlink&oid=123384075&loc=d3e41242-110953"
  },
  "r445": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(10)(1))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r446": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(11))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r447": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(13))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r448": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(15)(1))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r449": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(16))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r45": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313"
  },
  "r450": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(23))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r451": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.10)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r452": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.15)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r453": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.17)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r454": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(15))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r455": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(22))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r456": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(27))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r457": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04.10)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r458": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "235",
   "Subparagraph": "(SX 210.9-05(b)(2))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884"
  },
  "r459": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "470",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=123599511&loc=d3e64711-112823"
  },
  "r46": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313"
  },
  "r460": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(16))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r461": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(12))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r462": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(15)(b)(1))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r463": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(16))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r464": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r465": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(25))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r466": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03.(a),19)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r467": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03.5(c))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r468": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(18))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r469": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(23))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r47": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580"
  },
  "r470": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(8))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r471": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(9))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r472": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04.7)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r473": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437"
  },
  "r474": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4H",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671331-158438"
  },
  "r475": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(d)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124506351&loc=SL117782755-158439"
  },
  "r476": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "29F",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124504033&loc=SL117819544-158441"
  },
  "r477": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(e)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641"
  },
  "r478": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(f)(1)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641"
  },
  "r479": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(f)(2)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641"
  },
  "r48": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669625-108580"
  },
  "r480": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(g)(2)(i)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641"
  },
  "r481": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(h)(2)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641"
  },
  "r482": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "210",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=118262064&loc=SL116631418-115840"
  },
  "r483": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "210",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=118262064&loc=SL116631419-115840"
  },
  "r484": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "440",
   "Subparagraph": "(a)",
   "Topic": "954",
   "URI": "http://asc.fasb.org/extlink&oid=6491277&loc=d3e6429-115629"
  },
  "r485": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "310",
   "Subparagraph": "(c)",
   "Topic": "976",
   "URI": "http://asc.fasb.org/extlink&oid=6497875&loc=d3e22274-108663"
  },
  "r486": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "310",
   "Subparagraph": "(b)",
   "Topic": "978",
   "URI": "http://asc.fasb.org/extlink&oid=123360121&loc=d3e27327-108691"
  },
  "r487": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b"
  },
  "r488": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "d1-1"
  },
  "r489": {
   "Name": "Form 10-Q",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "308",
   "Subsection": "a"
  },
  "r49": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL124442407-227067"
  },
  "r490": {
   "Name": "Forms 10-K, 10-Q, 20-F",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13",
   "Subsection": "a-1"
  },
  "r491": {
   "Name": "Regulation 12B",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r492": {
   "Name": "Regulation S-T",
   "Number": "232",
   "Publisher": "SEC",
   "Section": "405"
  },
  "r493": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(a)(3)(iii)(03)",
   "Topic": "848"
  },
  "r5": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765"
  },
  "r50": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL124442411-227067"
  },
  "r51": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL124452729-227067"
  },
  "r52": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(1))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r53": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(10))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r54": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(20))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r55": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(25))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r56": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(5))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r57": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(8))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r58": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.1,2)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r59": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.2)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r6": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765"
  },
  "r60": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.4)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r61": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.4,6)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r62": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.7)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r63": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585"
  },
  "r64": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585"
  },
  "r65": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585"
  },
  "r66": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585"
  },
  "r67": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585"
  },
  "r68": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585"
  },
  "r69": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585"
  },
  "r7": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6801-107765"
  },
  "r70": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585"
  },
  "r71": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3367-108585"
  },
  "r72": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3521-108585"
  },
  "r73": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585"
  },
  "r74": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585"
  },
  "r75": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585"
  },
  "r76": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585"
  },
  "r77": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585"
  },
  "r78": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3044-108585"
  },
  "r79": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=d3e4297-108586"
  },
  "r8": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6904-107765"
  },
  "r80": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=SL98516268-108586"
  },
  "r81": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=123372394&loc=d3e18726-107790"
  },
  "r82": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=123372394&loc=d3e18823-107790"
  },
  "r83": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(c))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r84": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(d))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r85": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(e)(1))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r86": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(f))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r87": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(g)(1)(ii))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r88": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(h)(1)(Note 1))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r89": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(h)(2))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r9": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6911-107765"
  },
  "r90": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(h))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r91": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.12-04(a))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690"
  },
  "r92": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "235",
   "URI": "http://asc.fasb.org/topic&trid=2122369"
  },
  "r93": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "23",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21914-107793"
  },
  "r94": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21930-107793"
  },
  "r95": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21711-107793"
  },
  "r96": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(2)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794"
  },
  "r97": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(3)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794"
  },
  "r98": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794"
  },
  "r99": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794"
  }
 },
 "version": "2.1"
}
