{
 "instance": {
  "cogt-20230331.htm": {
   "axisCustom": 0,
   "axisStandard": 16,
   "baseTaxonomies": {
    "http://fasb.org/us-gaap/2022": 330,
    "http://xbrl.sec.gov/dei/2022": 31
   },
   "contextCount": 111,
   "dts": {
    "calculationLink": {
     "local": [
      "cogt-20230331_cal.xml"
     ]
    },
    "definitionLink": {
     "local": [
      "cogt-20230331_def.xml"
     ]
    },
    "inline": {
     "local": [
      "cogt-20230331.htm"
     ]
    },
    "labelLink": {
     "local": [
      "cogt-20230331_lab.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "cogt-20230331_pre.xml"
     ]
    },
    "schema": {
     "local": [
      "cogt-20230331.xsd"
     ],
     "remote": [
      "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",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "http://www.xbrl.org/2006/ref-2006-02-27.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd",
      "https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd",
      "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd",
      "https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd",
      "https://xbrl.fasb.org/srt/2022/elts/srt-roles-2022.xsd",
      "https://xbrl.fasb.org/srt/2022/elts/srt-types-2022.xsd",
      "https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd",
      "https://xbrl.fasb.org/us-gaap/2022/elts/us-roles-2022.xsd",
      "https://xbrl.fasb.org/us-gaap/2022/elts/us-types-2022.xsd",
      "https://xbrl.sec.gov/country/2022/country-2022.xsd",
      "https://xbrl.sec.gov/dei/2022/dei-2022.xsd"
     ]
    }
   },
   "elementCount": 313,
   "entityCount": 1,
   "hidden": {
    "http://fasb.org/us-gaap/2022": 4,
    "http://xbrl.sec.gov/dei/2022": 4,
    "total": 8
   },
   "keyCustom": 36,
   "keyStandard": 165,
   "memberCustom": 11,
   "memberStandard": 19,
   "nsprefix": "cogt",
   "nsuri": "http://www.cogentbio.com/20230331",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "document",
     "isDefault": "true",
     "longName": "100000 - Document - Document and Entity Information",
     "menuCat": "Cover",
     "order": "1",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation",
     "shortName": "Document and Entity Information",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R10": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100090 - Disclosure - Accrued Expenses and Other Current Liabilities",
     "menuCat": "Notes",
     "order": "10",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilities",
     "shortName": "Accrued Expenses and Other Current Liabilities",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R11": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "cogt:PreferredStockAndCommonStockTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100100 - Disclosure - Preferred Stock, Series A Non-Voting Convertible Preferred Stock and Common Stock",
     "menuCat": "Notes",
     "order": "11",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStock",
     "shortName": "Preferred Stock, Series A Non-Voting Convertible Preferred Stock and Common Stock",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "cogt:PreferredStockAndCommonStockTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R12": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100110 - Disclosure - Stock-Based Compensation",
     "menuCat": "Notes",
     "order": "12",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensation",
     "shortName": "Stock-Based Compensation",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R13": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100120 - Disclosure - Commitments and Contingencies",
     "menuCat": "Notes",
     "order": "13",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingencies",
     "shortName": "Commitments and Contingencies",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R14": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100130 - Disclosure - Net Loss Per Share",
     "menuCat": "Notes",
     "order": "14",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShare",
     "shortName": "Net Loss Per Share",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R15": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100140 - Disclosure - Retirement Plan",
     "menuCat": "Notes",
     "order": "15",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureRetirementPlan",
     "shortName": "Retirement Plan",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R16": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "us-gaap:SignificantAccountingPoliciesTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "cogt:UnauditedInterimFinancialInformationPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100150 - Disclosure - Summary of Significant Accounting Policies (Policies)",
     "menuCat": "Policies",
     "order": "16",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies",
     "shortName": "Summary of Significant Accounting Policies (Policies)",
     "subGroupType": "policies",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "us-gaap:SignificantAccountingPoliciesTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "cogt:UnauditedInterimFinancialInformationPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R17": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtSecuritiesAvailableForSaleTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100160 - Disclosure - Marketable Securities and Fair Value of Financial Assets and Liabilities (Tables)",
     "menuCat": "Tables",
     "order": "17",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesTables",
     "shortName": "Marketable Securities and Fair Value of Financial Assets and Liabilities (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DebtSecuritiesAvailableForSaleTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R18": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "us-gaap:AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100170 - Disclosure - Accrued Expenses and Other Current Liabilities (Tables)",
     "menuCat": "Tables",
     "order": "18",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilitiesTables",
     "shortName": "Accrued Expenses and Other Current Liabilities (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "us-gaap:AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R19": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100180 - Disclosure - Stock-Based Compensation (Tables)",
     "menuCat": "Tables",
     "order": "19",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationTables",
     "shortName": "Stock-Based Compensation (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R2": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_c4db9bdd-53bb-4730-b9dd-fce8350c16c9",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "100010 - Statement - Condensed Consolidated Balance Sheets",
     "menuCat": "Statements",
     "order": "2",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets",
     "shortName": "Condensed Consolidated Balance Sheets",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_c4db9bdd-53bb-4730-b9dd-fce8350c16c9",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     }
    },
    "R20": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "us-gaap:EarningsPerShareTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100190 - Disclosure - Net Loss per Share (Tables)",
     "menuCat": "Tables",
     "order": "20",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareTables",
     "shortName": "Net Loss per Share (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "us-gaap:EarningsPerShareTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R21": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "U_USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100200 - Disclosure - Nature of the Business and Basis of Presentation - Additional Information (Detail)",
     "menuCat": "Details",
     "order": "21",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNatureOfBusinessAndBasisOfPresentationAdditionalInformationDetail",
     "shortName": "Nature of the Business and Basis of Presentation - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": null
    },
    "R22": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap:DebtSecuritiesAvailableForSaleTableTextBlock",
       "div",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_c4db9bdd-53bb-4730-b9dd-fce8350c16c9",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:DebtSecuritiesAvailableForSaleAmortizedCostCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100210 - Disclosure - Marketable Securities and Fair Value of Financial Assets and Liabilities - Summary of Marketable Securities (Details)",
     "menuCat": "Details",
     "order": "22",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfMarketableSecuritiesDetails",
     "shortName": "Marketable Securities and Fair Value of Financial Assets and Liabilities - Summary of Marketable Securities (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap:DebtSecuritiesAvailableForSaleTableTextBlock",
       "div",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_c4db9bdd-53bb-4730-b9dd-fce8350c16c9",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:DebtSecuritiesAvailableForSaleAmortizedCostCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     }
    },
    "R23": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
       "div",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_cb63db8d-c66c-45bc-9801-f268d8554d54",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:AssetsFairValueDisclosure",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100220 - Disclosure - Marketable Securities and Fair Value of Financial Assets and Liabilities - Schedule of Financial Assets and Liabilities at Fair Value on Recurring Basis (Detail)",
     "menuCat": "Details",
     "order": "23",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa",
     "shortName": "Marketable Securities and Fair Value of Financial Assets and Liabilities - Schedule of Financial Assets and Liabilities at Fair Value on Recurring Basis (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
       "div",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_cb63db8d-c66c-45bc-9801-f268d8554d54",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:AssetsFairValueDisclosure",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     }
    },
    "R24": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_bb5401dc-a986-4779-910c-b4323efc8758",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:SharePrice",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_UnitedStatesOfAmericaDollarsShare",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100230 - Disclosure - Marketable Securities and Fair Value of Financial Assets and Liabilities - Additional Information (Detail)",
     "menuCat": "Details",
     "order": "24",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail",
     "shortName": "Marketable Securities and Fair Value of Financial Assets and Liabilities - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_bb5401dc-a986-4779-910c-b4323efc8758",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:SharePrice",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_UnitedStatesOfAmericaDollarsShare",
      "xsiNil": "false"
     }
    },
    "R25": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock",
       "div",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_cd2703b6-2765-4fd5-9348-b5bf34dfc357",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue",
      "reportCount": 1,
      "unitRef": "U_USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100240 - Disclosure - Marketable Securities and Fair Value of Financial Assets and Liabilities - Summary of Changes in the Fair Value of Company's CVR Liability (Detail)",
     "menuCat": "Details",
     "order": "25",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfChangesInTheFairValueOfCompanysCvrLiabilityDetail",
     "shortName": "Marketable Securities and Fair Value of Financial Assets and Liabilities - Summary of Changes in the Fair Value of Company's CVR Liability (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap:FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock",
       "div",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_1349d333-ec2d-459c-85d7-116e4c98eb50",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     }
    },
    "R26": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap:ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock",
       "div",
       "us-gaap:AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_c4db9bdd-53bb-4730-b9dd-fce8350c16c9",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:EmployeeRelatedLiabilitiesCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100250 - Disclosure - Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Detail)",
     "menuCat": "Details",
     "order": "26",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetail",
     "shortName": "Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap:ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock",
       "div",
       "us-gaap:AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_c4db9bdd-53bb-4730-b9dd-fce8350c16c9",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:EmployeeRelatedLiabilitiesCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     }
    },
    "R27": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_c4db9bdd-53bb-4730-b9dd-fce8350c16c9",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:CommonStockSharesAuthorized",
      "reportCount": 1,
      "unitRef": "U_shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100260 - Disclosure - Preferred Stock, Series A Non-Voting Convertible Preferred Stock and Common Stock - Additional Information (Detail)",
     "menuCat": "Details",
     "order": "27",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
     "shortName": "Preferred Stock, Series A Non-Voting Convertible Preferred Stock and Common Stock - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "cogt:PreferredStockAndCommonStockTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_f6f5e8c5-963a-40e7-be0d-1542a10ebe7b",
      "decimals": "4",
      "lang": null,
      "name": "cogt:BeneficialOwnershipLimitationPercentageForConversionOfCommonStockIssuedAndOutstanding",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_pure",
      "xsiNil": "false"
     }
    },
    "R28": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensation",
      "reportCount": 1,
      "unitRef": "U_USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100270 - Disclosure - Stock-Based Compensation - Additional Information (Detail)",
     "menuCat": "Details",
     "order": "28",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail",
     "shortName": "Stock-Based Compensation - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_d9c56e91-dc1d-480d-b544-fa0315346e80",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_shares",
      "xsiNil": "false"
     }
    },
    "R29": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock",
       "div",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:AllocatedShareBasedCompensationExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100280 - Disclosure - Stock-Based Compensation - Schedule of Stock Based Compensation Expense (Detail)",
     "menuCat": "Details",
     "order": "29",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetail",
     "shortName": "Stock-Based Compensation - Schedule of Stock Based Compensation Expense (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock",
       "div",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:AllocatedShareBasedCompensationExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     }
    },
    "R3": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "cogt:PreferredStockAndCommonStockTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_c4db9bdd-53bb-4730-b9dd-fce8350c16c9",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:PreferredStockParOrStatedValuePerShare",
      "reportCount": 1,
      "unitRef": "U_UnitedStatesOfAmericaDollarsShare",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "100020 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)",
     "menuCat": "Statements",
     "order": "3",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical",
     "shortName": "Condensed Consolidated Balance Sheets (Parenthetical)",
     "subGroupType": "parenthetical",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_c4db9bdd-53bb-4730-b9dd-fce8350c16c9",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:CommonStockSharesIssued",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_shares",
      "xsiNil": "false"
     }
    },
    "R30": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_684941a2-86ee-4d29-9d60-b964c3ac6e35",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "cogt:MilestonePayableInSecondQuarter",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100290 - Disclosure - Commitments and Contingencies - Additional Information (Detail)",
     "menuCat": "Details",
     "order": "30",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
     "shortName": "Commitments and Contingencies - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_684941a2-86ee-4d29-9d60-b964c3ac6e35",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "cogt:MilestonePayableInSecondQuarter",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     }
    },
    "R31": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "U_USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100300 - Disclosure - Net Loss Per Share - Schedule of Earnings Per Share Basic and Diluted (Detail)",
     "menuCat": "Details",
     "order": "31",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareScheduleOfEarningsPerShareBasicAndDilutedDetail",
     "shortName": "Net Loss Per Share - Schedule of Earnings Per Share Basic and Diluted (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
       "div",
       "us-gaap:EarningsPerShareTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     }
    },
    "R32": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock",
       "div",
       "us-gaap:EarningsPerShareTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": "0",
      "first": true,
      "lang": null,
      "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100310 - Disclosure - Net Loss Per Share - Summary of Potential Dilutive Securities (Detail)",
     "menuCat": "Details",
     "order": "32",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareSummaryOfPotentialDilutiveSecuritiesDetail",
     "shortName": "Net Loss Per Share - Summary of Potential Dilutive Securities (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "us-gaap:ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock",
       "div",
       "us-gaap:EarningsPerShareTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": "0",
      "first": true,
      "lang": null,
      "name": "us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_shares",
      "xsiNil": "false"
     }
    },
    "R33": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "us-gaap:EarningsPerShareTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_c4db9bdd-53bb-4730-b9dd-fce8350c16c9",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "us-gaap:ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1",
      "reportCount": 1,
      "unitRef": "U_UnitedStatesOfAmericaDollarsShare",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100320 - Disclosure - Net Loss Per Share - Additional Information (Details)",
     "menuCat": "Details",
     "order": "33",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureNetLossPerShareAdditionalInformationDetails",
     "shortName": "Net Loss Per Share - Additional Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": null
    },
    "R34": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:DefinedContributionPlanEmployerMatchingContributionPercentOfMatch",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_pure",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100330 - Disclosure - Retirement Plan - Additional Information (Detail)",
     "menuCat": "Details",
     "order": "34",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureRetirementPlanAdditionalInformationDetail",
     "shortName": "Retirement Plan - Additional Information (Detail)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:DefinedContributionPlanEmployerMatchingContributionPercentOfMatch",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_pure",
      "xsiNil": "false"
     }
    },
    "R4": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ResearchAndDevelopmentExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "100030 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Loss",
     "menuCat": "Statements",
     "order": "4",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss",
     "shortName": "Condensed Consolidated Statements of Operations and Comprehensive Loss",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ResearchAndDevelopmentExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     }
    },
    "R5": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_2779c68c-929c-4a20-a1a7-b7db34e3492c",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:StockholdersEquity",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "100040 - Statement - Condensed Consolidated Statements of Stockholders' Equity",
     "menuCat": "Statements",
     "order": "5",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity",
     "shortName": "Condensed Consolidated Statements of Stockholders' Equity",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_2779c68c-929c-4a20-a1a7-b7db34e3492c",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:StockholdersEquity",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     }
    },
    "R6": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ProfitLoss",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "100050 - Statement - Condensed Consolidated Statements of Cash Flows",
     "menuCat": "Statements",
     "order": "6",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows",
     "shortName": "Condensed Consolidated Statements of Cash Flows",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "p",
       "td",
       "tr",
       "table",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ProfitLoss",
      "reportCount": 1,
      "unique": true,
      "unitRef": "U_USD",
      "xsiNil": "false"
     }
    },
    "R7": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100060 - Disclosure - Nature of the Business and Basis of Presentation",
     "menuCat": "Notes",
     "order": "7",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNatureOfBusinessAndBasisOfPresentation",
     "shortName": "Nature of the Business and Basis of Presentation",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R8": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SignificantAccountingPoliciesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100070 - Disclosure - Summary of Significant Accounting Policies",
     "menuCat": "Notes",
     "order": "8",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies",
     "shortName": "Summary of Significant Accounting Policies",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SignificantAccountingPoliciesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R9": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "100080 - Disclosure - Marketable Securities and Fair Value of Financial Assets and Liabilities",
     "menuCat": "Notes",
     "order": "9",
     "role": "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilities1",
     "shortName": "Marketable Securities and Fair Value of Financial Assets and Liabilities",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "cogt-20230331.htm",
      "contextRef": "C_480bd474-1f92-4c05-a5be-b86f191ddf9d",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    }
   },
   "segmentCount": 32,
   "tag": {
    "cogt_AccruedExpensesAndOtherLiabilitiesCurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sum of the carrying values as of the balance sheet date of accrued expenses and other current liabilities.",
        "label": "Accrued Expenses And Other Liabilities Current",
        "terseLabel": "Accrued expenses and other current liabilities",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "AccruedExpensesAndOtherLiabilitiesCurrent",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_AccruedExternalManufacturingCostCurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetail": {
       "order": 2.0,
       "parentTag": "cogt_AccruedExpensesAndOtherLiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of obligations incurred through that date and payable for external manufacturing expense.",
        "label": "Accrued External Manufacturing Cost Current",
        "terseLabel": "Accrued external manufacturing costs"
       }
      }
     },
     "localname": "AccruedExternalManufacturingCostCurrent",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_AccruedExternalResearchAndDevelopmentExpensesCurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetail": {
       "order": 1.0,
       "parentTag": "cogt_AccruedExpensesAndOtherLiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of obligations incurred through that date and payable for external research and development expense. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Accrued External Research And Development Expenses Current",
        "terseLabel": "Accrued external research and development expense"
       }
      }
     },
     "localname": "AccruedExternalResearchAndDevelopmentExpensesCurrent",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_AccruedProfessionalAndConsultingServices": {
     "auth_ref": [],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetail": {
       "order": 3.0,
       "parentTag": "cogt_AccruedExpensesAndOtherLiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accrued professional and consulting services.",
        "label": "Accrued Professional And Consulting Services",
        "terseLabel": "Accrued professional and consulting services"
       }
      }
     },
     "localname": "AccruedProfessionalAndConsultingServices",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_AggregateOfferingPriceCommonStock": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate offering price for issuance or sale of common stock.",
        "label": "Aggregate Offering Price Common Stock",
        "terseLabel": "Stock offering cost"
       }
      }
     },
     "localname": "AggregateOfferingPriceCommonStock",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_AggregatePaymentsReceivedUponSatisfactionOfClinicalMilestones": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate payments received upon satisfaction of clinical milestones.",
        "label": "Aggregate Payments Received Upon Satisfaction Of Clinical Milestones",
        "terseLabel": "Aggregate payments received upon satisfaction of clinical milestones"
       }
      }
     },
     "localname": "AggregatePaymentsReceivedUponSatisfactionOfClinicalMilestones",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_AggregatePaymentsReceivedUponSatisfactionOfRegulatory": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate payments received upon satisfaction of regulatory.",
        "label": "Aggregate Payments Received Upon Satisfaction Of Regulatory",
        "terseLabel": "Aggregate payments received"
       }
      }
     },
     "localname": "AggregatePaymentsReceivedUponSatisfactionOfRegulatory",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_AnnualIncreaseInAggregateNumberOfSharesReservedForFutureIssuanceAsPercentageSharesOutstanding": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The percentage of the number of shares of the Company's common stock outstanding on the immediately preceding December 31 by which the number of shares reserved will be increased.",
        "label": "Annual Increase In Aggregate Number Of Shares Reserved For Future Issuance As Percentage Shares Outstanding",
        "terseLabel": "Percentage applied to the outstanding shares as annual increase in the number of shares authorized for issuance"
       }
      }
     },
     "localname": "AnnualIncreaseInAggregateNumberOfSharesReservedForFutureIssuanceAsPercentageSharesOutstanding",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "cogt_BOXRPlatformMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "BOXR platform.",
        "label": "B O X R Platform [Member]",
        "terseLabel": "BOXR Platform [Member]"
       }
      }
     },
     "localname": "BOXRPlatformMember",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "cogt_BeneficialOwnershipLimitationPercentageForConversionOfCommonStockIssuedAndOutstanding": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Beneficial ownership limitation percentage for conversion of common stock issued and outstanding.",
        "label": "Beneficial Ownership Limitation Percentage For Conversion Of Common Stock Issued And Outstanding",
        "terseLabel": "Beneficial ownership limitation percentage for conversion of common stock issued and outstanding",
        "verboseLabel": "Beneficial ownership limitation percentage for conversion of common stock issued and outstanding"
       }
      }
     },
     "localname": "BeneficialOwnershipLimitationPercentageForConversionOfCommonStockIssuedAndOutstanding",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "cogt_ChangeInFairValueOfContingentValueRightLiability": {
     "auth_ref": [],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss": {
       "order": 0.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Change in fair value of contingent value right liability.",
        "label": "Change In Fair Value Of Contingent Value Right Liability",
        "negatedLabel": "Change in fair value of CVR liability",
        "terseLabel": "Change in fair value of CVR liability"
       }
      }
     },
     "localname": "ChangeInFairValueOfContingentValueRightLiability",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_CommitmentsAndContingenciesDisclosureLineItems": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Commitments And Contingencies Disclosure [Line Items]",
        "label": "Commitments And Contingencies Disclosure [Line Items]",
        "terseLabel": "Commitments And Contingencies Disclosure [Line Items]"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureLineItems",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "cogt_CommitmentsAndContingenciesDisclosureTable": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Commitments And Contingencies Disclosure [Table]",
        "label": "Commitments And Contingencies Disclosure [Table]",
        "terseLabel": "Commitments And Contingencies Disclosure [Table]"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureTable",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "cogt_ContingentValueRightLiabilityCurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 0.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Contingent value right liability current.",
        "label": "Contingent Value Right Liability Current",
        "terseLabel": "CVR liability (Note 3)"
       }
      }
     },
     "localname": "ContingentValueRightLiabilityCurrent",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_ContingentValueRightLiabilityFairValueDisclosure": {
     "auth_ref": [],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa": {
       "order": 0.0,
       "parentTag": "us-gaap_LiabilitiesFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Contingent value right liability fair value disclosure.",
        "label": "Contingent Value Right Liability Fair Value Disclosure",
        "terseLabel": "CVR liability"
       }
      }
     },
     "localname": "ContingentValueRightLiabilityFairValueDisclosure",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_ContingentValueRightMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Contingent value right.",
        "label": "Contingent Value Right [Member]",
        "terseLabel": "CVR Liability [Member]"
       }
      }
     },
     "localname": "ContingentValueRightMember",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfChangesInTheFairValueOfCompanysCvrLiabilityDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "cogt_ConvertiblePreferredStockSharesIssuableUponConversion": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Convertible preferred stock shares issuable Upon conversion.",
        "label": "Convertible Preferred Stock Shares Issuable Upon Conversion",
        "terseLabel": "Convertible preferred stock, common stock issuable upon conversion"
       }
      }
     },
     "localname": "ConvertiblePreferredStockSharesIssuableUponConversion",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "cogt_DisposalGroupNotDiscontinuedOperationCashConsideration": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disposal group not discontinued operation cash consideration.",
        "label": "Disposal Group Not Discontinued Operation Cash Consideration",
        "terseLabel": "Disposal group, not discontinued operation, cash consideration"
       }
      }
     },
     "localname": "DisposalGroupNotDiscontinuedOperationCashConsideration",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_DisposalGroupNotDiscontinuedOperationPotentialMilestonePaymentsUponAchievementOfSpecifiedClaimsIssuance": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disposal group not discontinued operation potential milestone payments upon achievement of specified claims issuance.",
        "label": "Disposal Group Not Discontinued Operation Potential Milestone Payments Upon Achievement Of Specified Claims Issuance",
        "terseLabel": "Disposal group, not discontinued operation, potential milestone payments upon achievement of specified claims issuance"
       }
      }
     },
     "localname": "DisposalGroupNotDiscontinuedOperationPotentialMilestonePaymentsUponAchievementOfSpecifiedClaimsIssuance",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_DisposalGroupNotDiscontinuedOperationUpfrontPayment": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disposal group not discontinued operation upfront payment.",
        "label": "Disposal Group Not Discontinued Operation Upfront Payment",
        "terseLabel": "Disposal group, not discontinued operation, upfront payment"
       }
      }
     },
     "localname": "DisposalGroupNotDiscontinuedOperationUpfrontPayment",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_FairValueAssetsTransfersBetweenLevelOneTwoAndThree": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of transfers of assets measured on a recurring basis between Level 1, Level 2 and Level 3.",
        "label": "Fair Value Assets Transfers Between Level One Two And Three",
        "terseLabel": "Fair value asset, transfers between Level 1, Level 2 and Level 3, amount"
       }
      }
     },
     "localname": "FairValueAssetsTransfersBetweenLevelOneTwoAndThree",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_FairvaluemeasurementwithunobservableinputsreconciliationrecurringbasisliabilitygainlossincludedinpaymentsOfprobablereducingbalance": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fairvaluemeasurementwithunobservableinputsreconciliationrecurringbasisliabilitygainlossincludedinpayments ofprobablereducingbalance",
        "label": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInPayments OfProbableReducingBalance",
        "terseLabel": "Payments of probable reduction"
       }
      }
     },
     "localname": "FairvaluemeasurementwithunobservableinputsreconciliationrecurringbasisliabilitygainlossincludedinpaymentsOfprobablereducingbalance",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_GuggenheimSecuritiesLLCMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Guggenheim Securities, LLC.",
        "label": "Guggenheim Securities L L C [Member]",
        "terseLabel": "Guggenheim Securities, LLC [Member]"
       }
      }
     },
     "localname": "GuggenheimSecuritiesLLCMember",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "cogt_IncreaseDecreaseInOperatingLeases": {
     "auth_ref": [],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 12.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in operating lease obligations.",
        "label": "Increase Decrease In Operating Leases",
        "terseLabel": "Operating lease liability"
       }
      }
     },
     "localname": "IncreaseDecreaseInOperatingLeases",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_IssuanceOfCommonStockShares": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Issuance of common stock shares.",
        "label": "Issuance Of Common Stock Shares",
        "terseLabel": "Issuance of common stock"
       }
      }
     },
     "localname": "IssuanceOfCommonStockShares",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "cogt_IssuanceOfCommonStockSharesToSettleLiability": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Issuance of common stock shares to settle liability.",
        "label": "Issuance Of Common Stock Shares To Settle Liability",
        "terseLabel": "Issuance of common stock to settle CVR liability, Shares"
       }
      }
     },
     "localname": "IssuanceOfCommonStockSharesToSettleLiability",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "cogt_IssuanceOfCommonStockValueToSettleLiability": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Issuance of common stock value to settle liability.",
        "label": "Issuance Of Common Stock Value To Settle Liability",
        "terseLabel": "Issuance of common stock to settle CVR liability"
       }
      }
     },
     "localname": "IssuanceOfCommonStockValueToSettleLiability",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_MilestonePayableInSecondQuarter": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Milestone Payable in second quarter.",
        "label": "Milestone Payable In Second Quarter",
        "terseLabel": "Clinical milestone achieved, triggering payment"
       }
      }
     },
     "localname": "MilestonePayableInSecondQuarter",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_MinimumPercentageOfOriginallyIssuedSharesRemainIssuedAndOutstanding": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Minimum percentage of originally issued shares remain issued and outstanding.",
        "label": "Minimum Percentage Of Originally Issued Shares Remain Issued And Outstanding",
        "terseLabel": "Minimum percentage of originally issued shares remain issued and outstanding"
       }
      }
     },
     "localname": "MinimumPercentageOfOriginallyIssuedSharesRemainIssuedAndOutstanding",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "cogt_OfferingExpenses": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Offering expenses.",
        "label": "Offering Expenses",
        "terseLabel": "Offering expenses"
       }
      }
     },
     "localname": "OfferingExpenses",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_OtherMilestonePayments": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Other milestone payments.",
        "label": "Other Milestone Payments",
        "terseLabel": "Other milestone payments"
       }
      }
     },
     "localname": "OtherMilestonePayments",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_PercentageOfOutstandingSharesOfCommonStockReservedForFutureIssuance": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The percentage of the number of shares of the Company's common stock outstanding on the immediately preceding December 31 which will determine the increase in shares of common stock issued under the Plan.",
        "label": "Percentage Of Outstanding Shares Of Common Stock Reserved For Future Issuance",
        "terseLabel": "Percentage of shares of common stock available for issuance"
       }
      }
     },
     "localname": "PercentageOfOutstandingSharesOfCommonStockReservedForFutureIssuance",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "cogt_PercentageOfPreferredStockIssued": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of preferred stock issued.",
        "label": "Percentage Of Preferred Stock Issued",
        "terseLabel": "Percentage of preferred stock issued"
       }
      }
     },
     "localname": "PercentageOfPreferredStockIssued",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "cogt_PlexxikonLicenseAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Plexxikon license agreement.",
        "label": "Plexxikon License Agreement [Member]",
        "terseLabel": "Plexxikon License Agreement [Member]"
       }
      }
     },
     "localname": "PlexxikonLicenseAgreementMember",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "cogt_PreFundedWarrantsExercised": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Pre-funded warrants exercised",
        "label": "Pre-funded Warrants Exercised",
        "terseLabel": "Pre-funded warrants exercised"
       }
      }
     },
     "localname": "PreFundedWarrantsExercised",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "cogt_PreFundedWarrantsRemainOutstanding": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Pre-funded warrants remain outstanding.",
        "label": "Pre-funded Warrants Remain Outstanding",
        "terseLabel": "Pre-funded warrants remain outstanding"
       }
      }
     },
     "localname": "PreFundedWarrantsRemainOutstanding",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "cogt_PreferredStockAndCommonStockTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Preferred stock and common stock.",
        "label": "Preferred Stock And Common Stock Text Block",
        "terseLabel": "Preferred Stock, Series A Non-Voting Convertible Preferred Stock and Common Stock"
       }
      }
     },
     "localname": "PreferredStockAndCommonStockTextBlock",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStock"
     ],
     "xbrltype": "textBlockItemType"
    },
    "cogt_ProceedsFromIssuanceOrSaleOfEquityAndDebt": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow during the period from the issuance or sale of common stock, preferred stock, debt securities, warrants, or a combination of these securities.",
        "label": "Proceeds From Issuance Or Sale Of Equity And Debt",
        "terseLabel": "Proceeds from issuance of equity and debt financing"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOrSaleOfEquityAndDebt",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_PropertyAndEquipmentIncludedInAccountsPayableAndAccruedExpenses": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Property and equipment included in accounts payable and accrued expenses.",
        "label": "Property and Equipment Included in Accounts Payable and Accrued Expenses",
        "terseLabel": "Property &amp; equipment included in accounts payable and accrued expenses"
       }
      }
     },
     "localname": "PropertyAndEquipmentIncludedInAccountsPayableAndAccruedExpenses",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_SOTIOMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "SOTIO.",
        "label": "S O T I O [Member]",
        "terseLabel": "SOTIO [Member]"
       }
      }
     },
     "localname": "SOTIOMember",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "cogt_SeriesANonVotingConvertiblePreferredStockMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Series A Non-voting convertible preferred stock.",
        "label": "Series A Non Voting Convertible Preferred Stock [Member]",
        "terseLabel": "Series A Convertible Preferred Stock [Member]",
        "verboseLabel": "Series A Non-Voting Convertible Preferred Stock [Member]"
       }
      }
     },
     "localname": "SeriesANonVotingConvertiblePreferredStockMember",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "cogt_TwoThousandEighteenEmployeeStockPurchasePlanMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Two thousand eighteen employee stock purchase plan.",
        "label": "Two Thousand Eighteen Employee Stock Purchase Plan [Member]",
        "terseLabel": "2018 Employee Stock Purchase Plan [Member]"
       }
      }
     },
     "localname": "TwoThousandEighteenEmployeeStockPurchasePlanMember",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "cogt_TwoThousandEighteenStockOptionAndIncentivePlanMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Two thousand eighteen stock option and incentive plan.",
        "label": "Two Thousand Eighteen Stock Option And Incentive Plan [Member]",
        "terseLabel": "2018 Stock Option and Incentive Plan [Member]"
       }
      }
     },
     "localname": "TwoThousandEighteenStockOptionAndIncentivePlanMember",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "cogt_TwoThousandTwentyInducementPlanMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Two thousand twenty inducement plan.",
        "label": "Two Thousand Twenty Inducement Plan [Member]",
        "terseLabel": "2020 Inducement Plan [Member]"
       }
      }
     },
     "localname": "TwoThousandTwentyInducementPlanMember",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "cogt_UnauditedInterimFinancialInformationPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for unaudited interim financial information.",
        "label": "Unaudited Interim Financial Information Policy [Text Block]",
        "terseLabel": "Unaudited Interim Financial Information"
       }
      }
     },
     "localname": "UnauditedInterimFinancialInformationPolicyTextBlock",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "cogt_UnderwritersExercisePeriodOption": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Underwriters exercise period option.",
        "label": "Underwriters Exercise Period Option",
        "terseLabel": "Underwriters exercise period option"
       }
      }
     },
     "localname": "UnderwritersExercisePeriodOption",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "cogt_UnderwritingDiscountsAndCommissionsExpenses": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Underwriting discounts and commissions expenses.",
        "label": "Underwriting Discounts And Commissions Expenses",
        "terseLabel": "Underwriting discounts and commissions expenses"
       }
      }
     },
     "localname": "UnderwritingDiscountsAndCommissionsExpenses",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "cogt_UndesignatedPreferredStockMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Undesignated preferred stock.",
        "label": "Undesignated Preferred Stock [Member]",
        "terseLabel": "Undesignated Preferred Stock [Member]"
       }
      }
     },
     "localname": "UndesignatedPreferredStockMember",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "domainItemType"
    },
    "cogt_UsTreasuryBillsAndNotesSecuritiesMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "US treasury bills and notes securities.",
        "label": "US Treasury Bills and Notes Securities [Member]",
        "terseLabel": "U.S. Treasury Bills and Notes (Due within One Year) [Member]"
       }
      }
     },
     "localname": "UsTreasuryBillsAndNotesSecuritiesMember",
     "nsuri": "http://www.cogentbio.com/20230331",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfMarketableSecuritiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_CoverAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cover page.",
        "label": "Cover [Abstract]"
       }
      }
     },
     "localname": "CoverAbstract",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "dateItemType"
    },
    "dei_DocumentQuarterlyReport": {
     "auth_ref": [
      "r409"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_DocumentTransitionReport": {
     "auth_ref": [
      "r410"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "stateOrProvinceItemType"
    },
    "dei_EntityCentralIndexKey": {
     "auth_ref": [
      "r407"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityEmergingGrowthCompany": {
     "auth_ref": [
      "r407"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityExTransitionPeriod": {
     "auth_ref": [
      "r412"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate if an emerging growth company has elected not to use the extended transition period for complying with any new or revised financial accounting standards.",
        "label": "Entity Ex Transition Period",
        "terseLabel": "Entity Ex Transition Period"
       }
      }
     },
     "localname": "EntityExTransitionPeriod",
     "nsuri": "http://xbrl.sec.gov/dei/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "fileNumberItemType"
    },
    "dei_EntityFilerCategory": {
     "auth_ref": [
      "r407"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "edgarStateCountryItemType"
    },
    "dei_EntityInteractiveDataCurrent": {
     "auth_ref": [
      "r411"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityRegistrantName": {
     "auth_ref": [
      "r407"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityShellCompany": {
     "auth_ref": [
      "r407"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntitySmallBusiness": {
     "auth_ref": [
      "r407"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityTaxIdentificationNumber": {
     "auth_ref": [
      "r407"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r406"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "securityTitleItemType"
    },
    "dei_SecurityExchangeName": {
     "auth_ref": [
      "r408"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DocumentDocumentAndEntityInformation"
     ],
     "xbrltype": "tradingSymbolItemType"
    },
    "srt_CounterpartyNameAxis": {
     "auth_ref": [
      "r131",
      "r132",
      "r206",
      "r212",
      "r380",
      "r382"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Counterparty Name [Axis]",
        "terseLabel": "Counterparty Name"
       }
      }
     },
     "localname": "CounterpartyNameAxis",
     "nsuri": "http://fasb.org/srt/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_MaximumMember": {
     "auth_ref": [
      "r193",
      "r194",
      "r195",
      "r196",
      "r237",
      "r341",
      "r352",
      "r375",
      "r376",
      "r391",
      "r397",
      "r405",
      "r441",
      "r477",
      "r478",
      "r479",
      "r480",
      "r481",
      "r482"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Maximum [Member]",
        "terseLabel": "Maximum [Member]"
       }
      }
     },
     "localname": "MaximumMember",
     "nsuri": "http://fasb.org/srt/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureRetirementPlanAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_MinimumMember": {
     "auth_ref": [
      "r193",
      "r194",
      "r195",
      "r196",
      "r237",
      "r341",
      "r352",
      "r375",
      "r376",
      "r391",
      "r397",
      "r405",
      "r441",
      "r477",
      "r478",
      "r479",
      "r480",
      "r481",
      "r482"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Minimum [Member]",
        "terseLabel": "Minimum [Member]"
       }
      }
     },
     "localname": "MinimumMember",
     "nsuri": "http://fasb.org/srt/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureRetirementPlanAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RangeAxis": {
     "auth_ref": [
      "r193",
      "r194",
      "r195",
      "r196",
      "r220",
      "r237",
      "r265",
      "r266",
      "r267",
      "r317",
      "r341",
      "r352",
      "r375",
      "r376",
      "r391",
      "r397",
      "r405",
      "r437",
      "r441",
      "r478",
      "r479",
      "r480",
      "r481",
      "r482"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statistical Measurement [Axis]",
        "terseLabel": "Statistical Measurement"
       }
      }
     },
     "localname": "RangeAxis",
     "nsuri": "http://fasb.org/srt/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureRetirementPlanAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_RangeMember": {
     "auth_ref": [
      "r193",
      "r194",
      "r195",
      "r196",
      "r220",
      "r237",
      "r265",
      "r266",
      "r267",
      "r317",
      "r341",
      "r352",
      "r375",
      "r376",
      "r391",
      "r397",
      "r405",
      "r437",
      "r441",
      "r478",
      "r479",
      "r480",
      "r481",
      "r482"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statistical Measurement [Domain]",
        "terseLabel": "Statistical Measurement"
       }
      }
     },
     "localname": "RangeMember",
     "nsuri": "http://fasb.org/srt/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureRetirementPlanAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RepurchaseAgreementCounterpartyNameDomain": {
     "auth_ref": [
      "r131",
      "r132",
      "r206",
      "r212",
      "r381",
      "r382"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Counterparty Name [Domain]",
        "terseLabel": "Counterparty Name"
       }
      }
     },
     "localname": "RepurchaseAgreementCounterpartyNameDomain",
     "nsuri": "http://fasb.org/srt/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccountingPoliciesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Accounting Policies [Abstract]"
       }
      }
     },
     "localname": "AccountingPoliciesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for accounts payable, accrued expenses, and other liabilities that are classified as current at the end of the reporting period.",
        "label": "Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]",
        "terseLabel": "Accrued Expenses and Other Current Liabilities"
       }
      }
     },
     "localname": "AccountsPayableAccruedLiabilitiesAndOtherLiabilitiesDisclosureCurrentTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilities"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_AccountsPayableCurrent": {
     "auth_ref": [
      "r9",
      "r404"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "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",
        "totalLabel": "Accounts Payable, Current, Total"
       }
      }
     },
     "localname": "AccountsPayableCurrent",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments": {
     "auth_ref": [
      "r35"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.",
        "label": "Accretion (Amortization) of Discounts and Premiums, Investments",
        "negatedLabel": "Net amortization (accretion) of premiums (discounts) on marketable securities",
        "terseLabel": "Net amortization (accretion) of premiums (discounts) on marketable securities"
       }
      }
     },
     "localname": "AccretionAmortizationOfDiscountsAndPremiumsInvestments",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": {
     "auth_ref": [
      "r18",
      "r19",
      "r20",
      "r111",
      "r348",
      "r357",
      "r358"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 0.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.",
        "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax",
        "negatedLabel": "Accumulated other comprehensive loss",
        "terseLabel": "Accumulated other comprehensive income (loss)",
        "totalLabel": "Accumulated Other Comprehensive Income (Loss), Net of Tax, Total"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeMember": {
     "auth_ref": [
      "r17",
      "r20",
      "r78",
      "r310",
      "r353",
      "r354",
      "r418",
      "r419",
      "r420",
      "r426",
      "r427",
      "r428"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accumulated increase (decrease) in equity from transactions and other events and circumstances from non-owner sources, attributable to the parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.",
        "label": "AOCI Attributable to Parent [Member]",
        "terseLabel": "Accumulated Other Comprehensive Income (Loss) [Member]"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdditionalPaidInCapitalCommonStock": {
     "auth_ref": [
      "r4"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.",
        "label": "Additional Paid in Capital, Common Stock",
        "terseLabel": "Additional paid-in capital"
       }
      }
     },
     "localname": "AdditionalPaidInCapitalCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdditionalPaidInCapitalMember": {
     "auth_ref": [
      "r274",
      "r275",
      "r276",
      "r426",
      "r427",
      "r428",
      "r472"
     ],
     "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]",
        "terseLabel": "Additional Paid-in Capital [Member]"
       }
      }
     },
     "localname": "AdditionalPaidInCapitalMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": {
     "auth_ref": [
      "r73",
      "r74",
      "r240"
     ],
     "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.",
        "label": "APIC, Share-Based Payment Arrangement, Increase for Cost Recognition",
        "terseLabel": "Stock-based compensation expense",
        "totalLabel": "APIC, Share-Based Payment Arrangement, Increase for Cost Recognition, Total"
       }
      }
     },
     "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "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]",
        "terseLabel": "Adjustments to reconcile net loss to net cash used in operating activities:"
       }
      }
     },
     "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AllocatedShareBasedCompensationExpense": {
     "auth_ref": [
      "r269"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.",
        "label": "Share-Based Payment Arrangement, Expense",
        "terseLabel": "Stock-based compensation expense"
       }
      }
     },
     "localname": "AllocatedShareBasedCompensationExpense",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": {
     "auth_ref": [
      "r156"
     ],
     "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": "Potential dilutive securities excluded from computation of diluted net loss per common share"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareSummaryOfPotentialDilutiveSecuritiesDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis": {
     "auth_ref": [
      "r42"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of antidilutive security.",
        "label": "Antidilutive Securities [Axis]",
        "terseLabel": "Antidilutive Securities"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareSummaryOfPotentialDilutiveSecuritiesDetail"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareSummaryOfPotentialDilutiveSecuritiesDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AntidilutiveSecuritiesNameDomain": {
     "auth_ref": [
      "r42"
     ],
     "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"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareSummaryOfPotentialDilutiveSecuritiesDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ArrangementsAndNonarrangementTransactionsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Collaborative arrangement and arrangement other than collaborative applicable to revenue-generating activity or operations.",
        "label": "Collaborative Arrangement and Arrangement Other than Collaborative [Domain]",
        "terseLabel": "Collaborative Arrangement and Arrangement Other than Collaborative"
       }
      }
     },
     "localname": "ArrangementsAndNonarrangementTransactionsMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_Assets": {
     "auth_ref": [
      "r86",
      "r92",
      "r107",
      "r130",
      "r169",
      "r171",
      "r173",
      "r178",
      "r197",
      "r198",
      "r199",
      "r200",
      "r201",
      "r202",
      "r203",
      "r204",
      "r205",
      "r281",
      "r285",
      "r299",
      "r404",
      "r439",
      "r440",
      "r475"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Assets [Abstract]",
        "verboseLabel": "Assets"
       }
      }
     },
     "localname": "AssetsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetsCurrent": {
     "auth_ref": [
      "r103",
      "r112",
      "r130",
      "r178",
      "r197",
      "r198",
      "r199",
      "r200",
      "r201",
      "r202",
      "r203",
      "r204",
      "r205",
      "r281",
      "r285",
      "r299",
      "r404",
      "r439",
      "r440",
      "r475"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 4.0,
       "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetsFairValueDisclosure": {
     "auth_ref": [
      "r80"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets, Fair Value Disclosure",
        "terseLabel": "Total Assets",
        "totalLabel": "Total assets"
       }
      }
     },
     "localname": "AssetsFairValueDisclosure",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsFairValueDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Assets, Fair Value Disclosure [Abstract]",
        "terseLabel": "Assets:"
       }
      }
     },
     "localname": "AssetsFairValueDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax": {
     "auth_ref": [
      "r49"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfMarketableSecuritiesDetails": {
       "order": 0.0,
       "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostCurrent",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax",
        "terseLabel": "Marketable Securities, Gross Unrealized Gains"
       }
      }
     },
     "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfMarketableSecuritiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax": {
     "auth_ref": [
      "r50"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfMarketableSecuritiesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax",
        "negatedLabel": "Marketable Securities, Gross Unrealized Losses"
       }
      }
     },
     "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfMarketableSecuritiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent": {
     "auth_ref": [
      "r48",
      "r185"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfMarketableSecuritiesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostCurrent",
       "weight": 1.0
      },
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.",
        "label": "Marketable securities",
        "terseLabel": "Marketable Securities",
        "totalLabel": "Marketable Securities, Fair Value",
        "verboseLabel": "Marketable Securities, Fair Value"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtSecuritiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfMarketableSecuritiesDetails",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AwardTypeAxis": {
     "auth_ref": [
      "r243",
      "r244",
      "r245",
      "r246",
      "r247",
      "r248",
      "r249",
      "r250",
      "r251",
      "r252",
      "r253",
      "r254",
      "r255",
      "r256",
      "r257",
      "r258",
      "r259",
      "r260",
      "r261",
      "r262",
      "r263",
      "r264",
      "r265",
      "r266",
      "r267",
      "r268"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of award under share-based payment arrangement.",
        "label": "Award Type [Axis]",
        "terseLabel": "Award Type"
       }
      }
     },
     "localname": "AwardTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CashAndCashEquivalentsAtCarryingValue": {
     "auth_ref": [
      "r36",
      "r105",
      "r379"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 3.0,
       "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. Also includes 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. Excludes cash and cash equivalents within disposal group and discontinued operation.",
        "label": "Cash and Cash Equivalents, at Carrying Value",
        "terseLabel": "Cash and cash equivalents",
        "totalLabel": "Cash and Cash Equivalents, at Carrying Value, Total"
       }
      }
     },
     "localname": "CashAndCashEquivalentsAtCarryingValue",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashAndCashEquivalentsFairValueDisclosure": {
     "auth_ref": [],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa": {
       "order": 0.0,
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value portion 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. Also includes 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 and Cash Equivalents, Fair Value Disclosure",
        "terseLabel": "Cash equivalents"
       }
      }
     },
     "localname": "CashAndCashEquivalentsFairValueDisclosure",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": {
     "auth_ref": [
      "r31",
      "r36",
      "r40"
     ],
     "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 at end of period",
        "periodStartLabel": "Cash, cash equivalents and restricted cash at beginning of period",
        "totalLabel": "Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Total"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": {
     "auth_ref": [
      "r31",
      "r84"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "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": "Net (decrease) increase in cash, cash equivalents and restricted cash"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ClassOfStockDomain": {
     "auth_ref": [
      "r108",
      "r109",
      "r110",
      "r130",
      "r149",
      "r150",
      "r153",
      "r155",
      "r162",
      "r163",
      "r178",
      "r197",
      "r199",
      "r200",
      "r201",
      "r204",
      "r205",
      "r210",
      "r211",
      "r213",
      "r214",
      "r217",
      "r299",
      "r377",
      "r413",
      "r424",
      "r429"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share of stock differentiated by the voting rights the holder receives. Examples include, but are not limited to, common stock, redeemable preferred stock, nonredeemable preferred stock, and convertible stock.",
        "label": "Class of Stock [Domain]",
        "terseLabel": "Class of Stock"
       }
      }
     },
     "localname": "ClassOfStockDomain",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1": {
     "auth_ref": [
      "r218"
     ],
     "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": "Pre-funded warrants, purchase price per share",
        "verboseLabel": "Pre-funded warrants, exercise price"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureNetLossPerShareAdditionalInformationDetails",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights": {
     "auth_ref": [
      "r218"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.",
        "label": "Class of Warrant or Right, Number of Securities Called by Warrants or Rights",
        "terseLabel": "Pre-funded warrants, shares"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureNetLossPerShareAdditionalInformationDetails",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CollaborativeArrangementRightsAndObligations": {
     "auth_ref": [
      "r76"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Description of rights and obligations under the collaborative arrangements.",
        "label": "Collaborative Arrangement, Rights and Obligations",
        "terseLabel": "License agreement expiration terms"
       }
      }
     },
     "localname": "CollaborativeArrangementRightsAndObligations",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CommitmentsAndContingencies": {
     "auth_ref": [
      "r13",
      "r88",
      "r96"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "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",
        "terseLabel": "Commitments and contingencies (Note 7)"
       }
      }
     },
     "localname": "CommitmentsAndContingencies",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Commitments and Contingencies Disclosure [Abstract]"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "xbrltype": "stringItemType"
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": {
     "auth_ref": [
      "r56",
      "r191",
      "r192",
      "r374",
      "r438"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingencies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CommonStockCapitalSharesReservedForFutureIssuance": {
     "auth_ref": [
      "r14"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate number of common shares reserved for future issuance.",
        "label": "Common Stock, Capital Shares Reserved for Future Issuance",
        "terseLabel": "Shares reserved for future issuance"
       }
      }
     },
     "localname": "CommonStockCapitalSharesReservedForFutureIssuance",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockMember": {
     "auth_ref": [
      "r426",
      "r427",
      "r472"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Stock that is subordinate to all other stock of the issuer.",
        "label": "Common Stock [Member]",
        "terseLabel": "Common Stock [Member]"
       }
      }
     },
     "localname": "CommonStockMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommonStockParOrStatedValuePerShare": {
     "auth_ref": [
      "r3"
     ],
     "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 value"
       }
      }
     },
     "localname": "CommonStockParOrStatedValuePerShare",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_CommonStockSharesAuthorized": {
     "auth_ref": [
      "r3"
     ],
     "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"
       }
      }
     },
     "localname": "CommonStockSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesIssued": {
     "auth_ref": [
      "r3"
     ],
     "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",
        "terseLabel": "Common stock, Shares issued",
        "verboseLabel": "Common stock shares issued"
       }
      }
     },
     "localname": "CommonStockSharesIssued",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesOutstanding": {
     "auth_ref": [
      "r3",
      "r60"
     ],
     "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",
        "periodEndLabel": "Common Stock, Shares, Outstanding, Ending Balance",
        "periodStartLabel": "Common Stock, Shares, Outstanding, Beginning Balance",
        "terseLabel": "Common stock, Shares outstanding"
       }
      }
     },
     "localname": "CommonStockSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockValue": {
     "auth_ref": [
      "r3",
      "r404"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 2.0,
       "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, $0.001 par value; 150,000,000 shares authorized; 70,946,790 shares and 69,893,434 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively"
       }
      }
     },
     "localname": "CommonStockValue",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CommonStockVotingRights": {
     "auth_ref": [
      "r61"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Description of voting rights of common stock. Includes eligibility to vote and votes per share owned. Include also, if any, unusual voting rights.",
        "label": "Common Stock, Voting Rights",
        "terseLabel": "Common stock voting right"
       }
      }
     },
     "localname": "CommonStockVotingRights",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CompensationAndRetirementDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Retirement Benefits [Abstract]"
       }
      }
     },
     "localname": "CompensationAndRetirementDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "xbrltype": "stringItemType"
    },
    "us-gaap_ComprehensiveIncomeNetOfTax": {
     "auth_ref": [
      "r21",
      "r117",
      "r119",
      "r124",
      "r344",
      "r350"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.",
        "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent",
        "totalLabel": "Comprehensive loss"
       }
      }
     },
     "localname": "ComprehensiveIncomeNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ComprehensiveIncomeNetOfTaxAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]",
        "terseLabel": "Comprehensive loss:"
       }
      }
     },
     "localname": "ComprehensiveIncomeNetOfTaxAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ConsolidationPolicyTextBlock": {
     "auth_ref": [
      "r77",
      "r383"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.",
        "label": "Consolidation, Policy [Policy Text Block]",
        "terseLabel": "Principles of Consolidation"
       }
      }
     },
     "localname": "ConsolidationPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ConversionOfStockSharesConverted1": {
     "auth_ref": [
      "r37",
      "r38",
      "r39"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.",
        "label": "Conversion of Stock, Shares Converted",
        "terseLabel": "Cumulative amount of shares conversion"
       }
      }
     },
     "localname": "ConversionOfStockSharesConverted1",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ConvertiblePreferredStockConvertedToOtherSecurities": {
     "auth_ref": [
      "r61"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Value of convertible preferred stock that was converted to other securities.",
        "label": "Convertible Preferred Stock Converted to Other Securities",
        "terseLabel": "Conversion of Series A Convertible Preferred stock into common shares"
       }
      }
     },
     "localname": "ConvertiblePreferredStockConvertedToOtherSecurities",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion": {
     "auth_ref": [
      "r1",
      "r2",
      "r61",
      "r64",
      "r215"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares issued for each share of convertible preferred stock that is converted.",
        "label": "Convertible Preferred Stock, Shares Issued upon Conversion",
        "terseLabel": "Common stock issued upon conversion of preferred stock"
       }
      }
     },
     "localname": "ConvertiblePreferredStockSharesIssuedUponConversion",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CostsAndExpenses": {
     "auth_ref": [
      "r25"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss": {
       "order": 0.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total costs of sales and operating expenses for the period.",
        "label": "Costs and Expenses",
        "totalLabel": "Total operating expenses"
       }
      }
     },
     "localname": "CostsAndExpenses",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CostsAndExpensesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Costs and Expenses [Abstract]",
        "terseLabel": "Operating expenses:"
       }
      }
     },
     "localname": "CostsAndExpensesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostCurrent": {
     "auth_ref": [
      "r185",
      "r431"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfMarketableSecuritiesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.",
        "label": "Debt Securities, Available-for-Sale, Amortized Cost, Current",
        "terseLabel": "Marketable Securities, Amortized Cost",
        "totalLabel": "Marketable Securities, Amortized Cost"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleAmortizedCostCurrent",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfMarketableSecuritiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock": {
     "auth_ref": [
      "r432"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Debt Securities, Available-for-Sale [Table Text Block]",
        "terseLabel": "Summary of Marketable Securities"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DefinedContributionPlanDisclosureLineItems": {
     "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": "Defined Contribution Plan Disclosure [Line Items]",
        "terseLabel": "Defined Contribution Plan Disclosure [Line Items]"
       }
      }
     },
     "localname": "DefinedContributionPlanDisclosureLineItems",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureRetirementPlanAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of discretionary contributions made by an employer to a defined contribution plan.",
        "label": "Defined Contribution Plan, Employer Discretionary Contribution Amount",
        "terseLabel": "Defined contribution plan, matching amount"
       }
      }
     },
     "localname": "DefinedContributionPlanEmployerDiscretionaryContributionAmount",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureRetirementPlanAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.",
        "label": "Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay",
        "terseLabel": "Defined contribution plan, employer matching contribution percent"
       }
      }
     },
     "localname": "DefinedContributionPlanEmployerMatchingContributionPercent",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureRetirementPlanAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage employer matches of the employee's percentage contribution matched.",
        "label": "Defined Contribution Plan, Employer Matching Contribution, Percent of Match",
        "terseLabel": "Defined contribution plan, employer matching contribution percentage of match"
       }
      }
     },
     "localname": "DefinedContributionPlanEmployerMatchingContributionPercentOfMatch",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureRetirementPlanAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DefinedContributionPlanTable": {
     "auth_ref": [
      "r236"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of information about defined contribution pension plans or defined contribution other postretirement plans, separately for pension plans and other postretirement benefit plans.",
        "label": "Defined Contribution Plan [Table]",
        "terseLabel": "Defined Contribution Plan [Table]"
       }
      }
     },
     "localname": "DefinedContributionPlanTable",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureRetirementPlanAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DepreciationAndAmortization": {
     "auth_ref": [
      "r34",
      "r53"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.",
        "label": "Depreciation, Depletion and Amortization, Nonproduction",
        "terseLabel": "Depreciation and amortization expense",
        "totalLabel": "Depreciation, Depletion and Amortization, Nonproduction, Total"
       }
      }
     },
     "localname": "DepreciationAndAmortization",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": {
     "auth_ref": [
      "r242",
      "r270",
      "r271",
      "r273",
      "r277",
      "r398"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for share-based payment arrangement.",
        "label": "Share-Based Payment Arrangement [Text Block]",
        "terseLabel": "Stock-Based Compensation"
       }
      }
     },
     "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensation"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Share-Based Payment Arrangement [Abstract]"
       }
      }
     },
     "localname": "DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "xbrltype": "stringItemType"
    },
    "us-gaap_DisposalGroupClassificationAxis": {
     "auth_ref": [
      "r101"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by disposal group classification.",
        "label": "Disposal Group Classification [Axis]"
       }
      }
     },
     "localname": "DisposalGroupClassificationAxis",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DisposalGroupClassificationDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Component or group of components disposed of, including but not limited to, disposal group held-for-sale or disposed of by sale, disposed of by means other than sale, and discontinued operations.",
        "label": "Disposal Group Classification [Domain]"
       }
      }
     },
     "localname": "DisposalGroupClassificationDomain",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember": {
     "auth_ref": [
      "r52",
      "r55"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disposal group that has been sold. Excludes disposals classified as discontinued operations.",
        "label": "Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]"
       }
      }
     },
     "localname": "DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain": {
     "auth_ref": [
      "r395",
      "r396"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of disposal group.",
        "label": "Disposal Group Name [Domain]"
       }
      }
     },
     "localname": "DisposalGroupsIncludingDiscontinuedOperationsNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EarningsPerShareAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Earnings Per Share [Abstract]"
       }
      }
     },
     "localname": "EarningsPerShareAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareBasic": {
     "auth_ref": [
      "r125",
      "r138",
      "r139",
      "r140",
      "r141",
      "r142",
      "r146",
      "r149",
      "r153",
      "r154",
      "r155",
      "r159",
      "r289",
      "r290",
      "r345",
      "r351",
      "r385"
     ],
     "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": "Net loss per share attributable to common stockholders, basic",
        "totalLabel": "Earnings Per Share, Basic, Total",
        "verboseLabel": "Net loss per common share, basic"
       }
      }
     },
     "localname": "EarningsPerShareBasic",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareScheduleOfEarningsPerShareBasicAndDilutedDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareDiluted": {
     "auth_ref": [
      "r125",
      "r138",
      "r139",
      "r140",
      "r141",
      "r142",
      "r149",
      "r153",
      "r154",
      "r155",
      "r159",
      "r289",
      "r290",
      "r345",
      "r351",
      "r385"
     ],
     "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": "Net loss per share attributable to common stockholders, diluted",
        "totalLabel": "Earnings Per Share, Diluted, Total",
        "verboseLabel": "Net loss per common share, diluted"
       }
      }
     },
     "localname": "EarningsPerShareDiluted",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareScheduleOfEarningsPerShareBasicAndDilutedDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareTextBlock": {
     "auth_ref": [
      "r156",
      "r157",
      "r158",
      "r160"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for earnings per share.",
        "label": "Earnings Per Share [Text Block]",
        "terseLabel": "Net Loss Per Share"
       }
      }
     },
     "localname": "EarningsPerShareTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShare"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EmployeeRelatedLiabilitiesCurrent": {
     "auth_ref": [
      "r11"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetail": {
       "order": 0.0,
       "parentTag": "cogt_AccruedExpensesAndOtherLiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Employee-related Liabilities, Current",
        "terseLabel": "Accrued employee compensation and benefits",
        "totalLabel": "Employee-related Liabilities, Current, Total"
       }
      }
     },
     "localname": "EmployeeRelatedLiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems": {
     "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 Payment Arrangement, Expensed and Capitalized, Amount [Line Items]",
        "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1": {
     "auth_ref": [
      "r272"
     ],
     "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": "Unrecognized compensation expenses, recognition period"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions": {
     "auth_ref": [
      "r470"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cost to be recognized for option under share-based payment arrangement.",
        "label": "Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount",
        "terseLabel": "Unrecognized compensation cost"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeStockOptionMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share-based payment arrangement granting right, subject to vesting and other restrictions, to purchase or sell certain number of shares at predetermined price for specified period of time.",
        "label": "Share-Based Payment Arrangement, Option [Member]",
        "terseLabel": "Stock Option [Member]",
        "verboseLabel": "Stock Options to Purchase Common Stock [Member]"
       }
      }
     },
     "localname": "EmployeeStockOptionMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareSummaryOfPotentialDilutiveSecuritiesDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Equity [Abstract]"
       }
      }
     },
     "localname": "EquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EquityComponentDomain": {
     "auth_ref": [
      "r60",
      "r100",
      "r120",
      "r121",
      "r122",
      "r133",
      "r134",
      "r135",
      "r137",
      "r143",
      "r145",
      "r161",
      "r179",
      "r219",
      "r274",
      "r275",
      "r276",
      "r278",
      "r279",
      "r288",
      "r300",
      "r301",
      "r302",
      "r303",
      "r304",
      "r306",
      "r310",
      "r353",
      "r354",
      "r355"
     ],
     "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"
       }
      }
     },
     "localname": "EquityComponentDomain",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa",
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfMarketableSecuritiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable": {
     "auth_ref": [
      "r291",
      "r292",
      "r297"
     ],
     "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 Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa",
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfMarketableSecuritiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByFairValueHierarchyLevelAxis": {
     "auth_ref": [
      "r207",
      "r222",
      "r223",
      "r224",
      "r225",
      "r226",
      "r227",
      "r292",
      "r314",
      "r315",
      "r316",
      "r389",
      "r390",
      "r392",
      "r393",
      "r394"
     ],
     "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"
       }
      }
     },
     "localname": "FairValueByFairValueHierarchyLevelAxis",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByMeasurementFrequencyAxis": {
     "auth_ref": [
      "r291",
      "r292",
      "r293",
      "r294",
      "r298"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by measurement frequency.",
        "label": "Measurement Frequency [Axis]",
        "terseLabel": "Measurement Frequency"
       }
      }
     },
     "localname": "FairValueByMeasurementFrequencyAxis",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueDisclosuresAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Fair Value Disclosures [Abstract]"
       }
      }
     },
     "localname": "FairValueDisclosuresAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueInputsLevel1Member": {
     "auth_ref": [
      "r207",
      "r222",
      "r227",
      "r292",
      "r314",
      "r392",
      "r393",
      "r394"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.",
        "label": "Fair Value, Inputs, Level 1 [Member]",
        "terseLabel": "Level 1 [Member]"
       }
      }
     },
     "localname": "FairValueInputsLevel1Member",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueInputsLevel2Member": {
     "auth_ref": [
      "r207",
      "r222",
      "r227",
      "r292",
      "r315",
      "r389",
      "r390",
      "r392",
      "r393",
      "r394"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Inputs other than quoted prices included within level 1 that are observable for an asset or liability, either directly or indirectly, including, but not limited to, quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in inactive markets.",
        "label": "Fair Value, Inputs, Level 2 [Member]",
        "terseLabel": "Level 2 [Member]"
       }
      }
     },
     "localname": "FairValueInputsLevel2Member",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueInputsLevel3Member": {
     "auth_ref": [
      "r207",
      "r222",
      "r223",
      "r224",
      "r225",
      "r226",
      "r227",
      "r292",
      "r316",
      "r389",
      "r390",
      "r392",
      "r393",
      "r394"
     ],
     "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 [Member]"
       }
      }
     },
     "localname": "FairValueInputsLevel3Member",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems": {
     "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, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]",
        "terseLabel": "Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]"
       }
      }
     },
     "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfChangesInTheFairValueOfCompanysCvrLiabilityDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable": {
     "auth_ref": [
      "r81",
      "r83"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Schedule of information required and determined to be provided for purposes of reconciling beginning and ending balances of fair value measurements of liabilities using significant unobservable inputs (level 3). Separately presenting changes during the period, attributable to: (1) total gains or losses for the period (realized and unrealized) and location reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (net); (3) transfers in and/or out of Level 3.",
        "label": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]",
        "terseLabel": "Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Table]"
       }
      }
     },
     "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfChangesInTheFairValueOfCompanysCvrLiabilityDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock": {
     "auth_ref": [
      "r81",
      "r83"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.",
        "label": "Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]",
        "terseLabel": "Summary of Changes in the Fair Value of Company's CVR Liability"
       }
      }
     },
     "localname": "FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueMeasurementFrequencyDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Measurement frequency.",
        "label": "Measurement Frequency [Domain]",
        "terseLabel": "Measurement Frequency"
       }
      }
     },
     "localname": "FairValueMeasurementFrequencyDomain",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings": {
     "auth_ref": [
      "r295"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).",
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings",
        "negatedLabel": "Change in fair value",
        "negatedTerseLabel": "Decrease in fair value",
        "terseLabel": "Change in fair value"
       }
      }
     },
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfChangesInTheFairValueOfCompanysCvrLiabilityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements": {
     "auth_ref": [
      "r82"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements",
        "negatedLabel": "CVR settlement",
        "terseLabel": "Partial settlement"
       }
      }
     },
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfChangesInTheFairValueOfCompanysCvrLiabilityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue": {
     "auth_ref": [
      "r81"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value",
        "periodEndLabel": "Ending balance",
        "periodStartLabel": "Beginning balance"
       }
      }
     },
     "localname": "FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfChangesInTheFairValueOfCompanysCvrLiabilityDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": {
     "auth_ref": [
      "r207",
      "r222",
      "r223",
      "r224",
      "r225",
      "r226",
      "r227",
      "r314",
      "r315",
      "r316",
      "r389",
      "r390",
      "r392",
      "r393",
      "r394"
     ],
     "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"
       }
      }
     },
     "localname": "FairValueMeasurementsFairValueHierarchyDomain",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementsRecurringMember": {
     "auth_ref": [
      "r296",
      "r298"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Frequent fair value measurement. Includes, but is not limited to, fair value adjustment for impairment of asset, liability or equity, frequently measured at fair value.",
        "label": "Fair Value, Recurring [Member]",
        "terseLabel": "Recurring Basis [Member]"
       }
      }
     },
     "localname": "FairValueMeasurementsRecurringMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueRecurringBasisUnobservableInputReconciliationLiabilityGainLossStatementOfIncomeExtensibleList": {
     "auth_ref": [
      "r295"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicates line item in statement in which net income is reported that includes gain (loss) from liability measured at fair value using unobservable input (level 3).",
        "label": "Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]"
       }
      }
     },
     "localname": "FairValueRecurringBasisUnobservableInputReconciliationLiabilityGainLossStatementOfIncomeExtensibleList",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfChangesInTheFairValueOfCompanysCvrLiabilityDetail"
     ],
     "xbrltype": "enumerationSetItemType"
    },
    "us-gaap_FinancialInstrumentAxis": {
     "auth_ref": [
      "r175",
      "r176",
      "r180",
      "r181",
      "r182",
      "r183",
      "r184",
      "r186",
      "r187",
      "r188",
      "r209",
      "r216",
      "r287",
      "r311",
      "r312",
      "r313",
      "r314",
      "r315",
      "r316",
      "r317",
      "r318",
      "r319",
      "r320",
      "r321",
      "r322",
      "r323",
      "r324",
      "r325",
      "r326",
      "r327",
      "r328",
      "r329",
      "r330",
      "r331",
      "r332",
      "r333",
      "r334",
      "r335",
      "r336",
      "r337",
      "r338",
      "r339",
      "r340",
      "r388",
      "r433",
      "r434",
      "r435",
      "r485",
      "r486",
      "r487",
      "r488",
      "r489",
      "r490",
      "r491"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of financial instrument.",
        "label": "Financial Instrument [Axis]",
        "terseLabel": "Financial Instrument"
       }
      }
     },
     "localname": "FinancialInstrumentAxis",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfChangesInTheFairValueOfCompanysCvrLiabilityDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfMarketableSecuritiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_GeneralAndAdministrativeExpense": {
     "auth_ref": [
      "r26"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss": {
       "order": 0.0,
       "parentTag": "us-gaap_CostsAndExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.",
        "label": "General and Administrative Expense",
        "terseLabel": "General and administrative",
        "totalLabel": "General and Administrative Expense, Total"
       }
      }
     },
     "localname": "GeneralAndAdministrativeExpense",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GeneralAndAdministrativeExpenseMember": {
     "auth_ref": [
      "r24"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Primary financial statement caption encompassing general and administrative expense.",
        "label": "General and Administrative Expense [Member]",
        "terseLabel": "General and Administrative Expenses [Member]"
       }
      }
     },
     "localname": "GeneralAndAdministrativeExpenseMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IncomeStatementAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Income Statement [Abstract]"
       }
      }
     },
     "localname": "IncomeStatementAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis": {
     "auth_ref": [
      "r395",
      "r396"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by name of disposal group.",
        "label": "Disposal Group Name [Axis]"
       }
      }
     },
     "localname": "IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementLocationAxis": {
     "auth_ref": [
      "r189",
      "r190"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by location in the income statement.",
        "label": "Income Statement Location [Axis]",
        "terseLabel": "Income Statement Location"
       }
      }
     },
     "localname": "IncomeStatementLocationAxis",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementLocationDomain": {
     "auth_ref": [
      "r190"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Location in the income statement.",
        "label": "Income Statement Location [Domain]",
        "terseLabel": "Income Statement Location"
       }
      }
     },
     "localname": "IncomeStatementLocationDomain",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IncreaseDecreaseInAccountsPayable": {
     "auth_ref": [
      "r33"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 10.0,
       "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",
        "terseLabel": "Accounts payable",
        "totalLabel": "Increase (Decrease) in Accounts Payable, Total"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccountsPayable",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities": {
     "auth_ref": [
      "r421"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 11.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in accrued expenses, and obligations classified as other.",
        "label": "Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities",
        "terseLabel": "Accrued expenses and other current liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncreaseDecreaseInOtherOperatingAssets": {
     "auth_ref": [
      "r33"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 9.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in operating assets classified as other.",
        "label": "Increase (Decrease) in Other Operating Assets",
        "negatedLabel": "Other assets",
        "totalLabel": "Increase (Decrease) in Other Operating Assets, Total"
       }
      }
     },
     "localname": "IncreaseDecreaseInOtherOperatingAssets",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets": {
     "auth_ref": [
      "r33"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 7.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in prepaid expenses, and assets classified as other.",
        "label": "Increase (Decrease) in Prepaid Expense and Other Assets",
        "negatedLabel": "Prepaid expenses and other current assets"
       }
      }
     },
     "localname": "IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InvestmentIncomeInterest": {
     "auth_ref": [
      "r27",
      "r168"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss": {
       "order": 1.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.",
        "label": "Investment Income, Interest",
        "terseLabel": "Interest income"
       }
      }
     },
     "localname": "InvestmentIncomeInterest",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InvestmentTypeAxis": {
     "auth_ref": [
      "r359",
      "r360",
      "r361",
      "r362",
      "r363",
      "r364",
      "r365",
      "r366",
      "r367",
      "r368",
      "r369",
      "r370",
      "r371",
      "r372",
      "r373"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of investments.",
        "label": "Investment Type [Axis]"
       }
      }
     },
     "localname": "InvestmentTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_InvestmentTypeCategorizationMember": {
     "auth_ref": [
      "r359",
      "r360",
      "r361",
      "r362",
      "r363",
      "r364",
      "r365",
      "r366",
      "r367",
      "r368",
      "r369",
      "r370",
      "r371",
      "r372",
      "r373"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Asset obtained to generate income or appreciate in value.",
        "label": "Investments [Domain]"
       }
      }
     },
     "localname": "InvestmentTypeCategorizationMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InvestmentsFairValueDisclosure": {
     "auth_ref": [
      "r291"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa": {
       "order": 1.0,
       "parentTag": "us-gaap_AssetsFairValueDisclosure",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.",
        "label": "Investments, Fair Value Disclosure",
        "terseLabel": "Marketable Securities",
        "totalLabel": "Investments, Fair Value Disclosure, Total"
       }
      }
     },
     "localname": "InvestmentsFairValueDisclosure",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock": {
     "auth_ref": [
      "r51",
      "r85",
      "r91",
      "r98",
      "r378"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for investments in certain debt and equity securities.",
        "label": "Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]",
        "terseLabel": "Marketable Securities and Fair Value of Financial Assets and Liabilities"
       }
      }
     },
     "localname": "InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilities1"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_Liabilities": {
     "auth_ref": [
      "r10",
      "r130",
      "r178",
      "r197",
      "r198",
      "r199",
      "r200",
      "r201",
      "r202",
      "r203",
      "r204",
      "r205",
      "r282",
      "r285",
      "r286",
      "r299",
      "r386",
      "r439",
      "r475",
      "r476"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 0.0,
       "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquity": {
     "auth_ref": [
      "r8",
      "r87",
      "r94",
      "r404",
      "r425",
      "r436",
      "r474"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Liabilities and Equity [Abstract]",
        "terseLabel": "Liabilities and Stockholders\u2019 Equity"
       }
      }
     },
     "localname": "LiabilitiesAndStockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilitiesCurrent": {
     "auth_ref": [
      "r12",
      "r104",
      "r130",
      "r178",
      "r197",
      "r198",
      "r199",
      "r200",
      "r201",
      "r202",
      "r203",
      "r204",
      "r205",
      "r282",
      "r285",
      "r286",
      "r299",
      "r404",
      "r439",
      "r475",
      "r476"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilitiesFairValueDisclosure": {
     "auth_ref": [
      "r80"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value of financial and nonfinancial obligations.",
        "label": "Liabilities, Fair Value Disclosure",
        "totalLabel": "Total liabilities"
       }
      }
     },
     "localname": "LiabilitiesFairValueDisclosure",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesFairValueDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Liabilities, Fair Value Disclosure [Abstract]",
        "terseLabel": "Liabilities:"
       }
      }
     },
     "localname": "LiabilitiesFairValueDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_MarketableSecuritiesPolicy": {
     "auth_ref": [
      "r90"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for investment classified as marketable security.",
        "label": "Marketable Securities, Policy [Policy Text Block]",
        "terseLabel": "Marketable Securities"
       }
      }
     },
     "localname": "MarketableSecuritiesPolicy",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_MoneyMarketFundsMember": {
     "auth_ref": [
      "r443"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fund that invests in short-term money-market instruments, for example, but not limited to, commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and other highly liquid securities.",
        "label": "Money Market Funds [Member]",
        "terseLabel": "Money Market Funds [Member]"
       }
      }
     },
     "localname": "MoneyMarketFundsMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivities": {
     "auth_ref": [
      "r128"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "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 financing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivities",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivities": {
     "auth_ref": [
      "r128"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 1.0,
       "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) provided by investing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivities",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivities": {
     "auth_ref": [
      "r31",
      "r32",
      "r35"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 0.0,
       "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 operating activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivities",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Net Cash Provided by (Used in) Operating Activities [Abstract]",
        "terseLabel": "Cash flows from operating activities:"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetIncomeLoss": {
     "auth_ref": [
      "r23",
      "r35",
      "r89",
      "r97",
      "r102",
      "r115",
      "r118",
      "r122",
      "r130",
      "r136",
      "r138",
      "r139",
      "r140",
      "r141",
      "r144",
      "r145",
      "r151",
      "r169",
      "r170",
      "r172",
      "r174",
      "r178",
      "r197",
      "r198",
      "r199",
      "r200",
      "r201",
      "r202",
      "r203",
      "r204",
      "r205",
      "r290",
      "r299",
      "r387",
      "r439"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareScheduleOfEarningsPerShareBasicAndDilutedDetail": {
       "order": 0.0,
       "parentTag": "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic",
       "weight": 1.0
      },
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss": {
       "order": 1.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": 1.0
      }
     },
     "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 loss",
        "totalLabel": "Net loss",
        "verboseLabel": "Net loss"
       }
      }
     },
     "localname": "NetIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNatureOfBusinessAndBasisOfPresentationAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareScheduleOfEarningsPerShareBasicAndDilutedDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic": {
     "auth_ref": [
      "r138",
      "r139",
      "r140",
      "r141",
      "r146",
      "r147",
      "r152",
      "r155",
      "r169",
      "r170",
      "r172",
      "r174",
      "r387"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareScheduleOfEarningsPerShareBasicAndDilutedDetail": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.",
        "label": "Net Income (Loss) Available to Common Stockholders, Basic",
        "totalLabel": "Net loss attributable to common stockholders"
       }
      }
     },
     "localname": "NetIncomeLossAvailableToCommonStockholdersBasic",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareScheduleOfEarningsPerShareBasicAndDilutedDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NoncashInvestingAndFinancingItemsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Noncash Investing and Financing Items [Abstract]",
        "terseLabel": "Supplemental disclosure of noncash investing and financing information:"
       }
      }
     },
     "localname": "NoncashInvestingAndFinancingItemsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NonoperatingIncomeExpense": {
     "auth_ref": [
      "r28"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss": {
       "order": 1.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": 1.0
      }
     },
     "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 other income, net"
       }
      }
     },
     "localname": "NonoperatingIncomeExpense",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NonoperatingIncomeExpenseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Nonoperating Income (Expense) [Abstract]",
        "terseLabel": "Other income:"
       }
      }
     },
     "localname": "NonoperatingIncomeExpenseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingIncomeLoss": {
     "auth_ref": [
      "r169",
      "r170",
      "r172",
      "r174",
      "r387"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss": {
       "order": 0.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "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": "Loss from operations"
       }
      }
     },
     "localname": "OperatingIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilityCurrent": {
     "auth_ref": [
      "r308"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "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": "Operating lease liability"
       }
      }
     },
     "localname": "OperatingLeaseLiabilityCurrent",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilityNoncurrent": {
     "auth_ref": [
      "r308"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 0.0,
       "parentTag": "us-gaap_Liabilities",
       "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": "Operating lease liability, net of current portion"
       }
      }
     },
     "localname": "OperatingLeaseLiabilityNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseRightOfUseAsset": {
     "auth_ref": [
      "r307"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 0.0,
       "parentTag": "us-gaap_Assets",
       "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 asset",
        "verboseLabel": "Operating lease, initial right-of-use asset"
       }
      }
     },
     "localname": "OperatingLeaseRightOfUseAsset",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense": {
     "auth_ref": [
      "r422"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of amortization expense for right-of-use asset from operating lease.",
        "label": "Operating Lease, Right-of-Use Asset, Amortization Expense",
        "terseLabel": "Amortization of operating leases, right-of-use assets"
       }
      }
     },
     "localname": "OperatingLeaseRightOfUseAssetAmortizationExpense",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Organization, Consolidation and Presentation of Financial Statements [Abstract]"
       }
      }
     },
     "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "xbrltype": "stringItemType"
    },
    "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock": {
     "auth_ref": [
      "r0",
      "r79"
     ],
     "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": "Nature of the Business and Basis of Presentation"
       }
      }
     },
     "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNatureOfBusinessAndBasisOfPresentation"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_OtherAccruedLiabilitiesCurrent": {
     "auth_ref": [
      "r11"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetail": {
       "order": 4.0,
       "parentTag": "cogt_AccruedExpensesAndOtherLiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.",
        "label": "Other Accrued Liabilities, Current",
        "terseLabel": "Other"
       }
      }
     },
     "localname": "OtherAccruedLiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilitiesScheduleOfAccruedExpensesAndOtherCurrentLiabilitiesDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherAssetsNoncurrent": {
     "auth_ref": [
      "r106"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 3.0,
       "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",
        "terseLabel": "Other assets"
       }
      }
     },
     "localname": "OtherAssetsNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTax": {
     "auth_ref": [
      "r22",
      "r60",
      "r116",
      "r119",
      "r123",
      "r300",
      "r305",
      "r306",
      "r343",
      "r349",
      "r418",
      "r419"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss": {
       "order": 0.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after tax and reclassification adjustments of other comprehensive income (loss).",
        "label": "Other Comprehensive Income (Loss), Net of Tax",
        "totalLabel": "Total other comprehensive loss"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Other Comprehensive Income (Loss), Net of Tax [Abstract]",
        "terseLabel": "Other comprehensive loss"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax": {
     "auth_ref": [
      "r113",
      "r114",
      "r177"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, before tax and adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.",
        "label": "OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax",
        "terseLabel": "Unrealized gains on marketable securities"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax": {
     "auth_ref": [
      "r113",
      "r114"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss": {
       "order": 0.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.",
        "label": "OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax",
        "terseLabel": "Net unrealized gains on marketable securities"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherNonoperatingIncome": {
     "auth_ref": [
      "r126"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss": {
       "order": 2.0,
       "parentTag": "us-gaap_NonoperatingIncomeExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of income related to nonoperating activities, classified as other.",
        "label": "Other Nonoperating Income",
        "terseLabel": "Other income, net"
       }
      }
     },
     "localname": "OtherNonoperatingIncome",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "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": "Underwritten Public Offering [Member]"
       }
      }
     },
     "localname": "OverAllotmentOptionMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PayablesAndAccrualsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Payables and Accruals [Abstract]"
       }
      }
     },
     "localname": "PayablesAndAccrualsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "xbrltype": "stringItemType"
    },
    "us-gaap_PaymentsToAcquireMarketableSecurities": {
     "auth_ref": [
      "r47"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash outflow for purchase of marketable security.",
        "label": "Payments to Acquire Marketable Securities",
        "negatedLabel": "Purchases of marketable securities",
        "terseLabel": "Purchases of marketable securities"
       }
      }
     },
     "localname": "PaymentsToAcquireMarketableSecurities",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": {
     "auth_ref": [
      "r29"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 0.0,
       "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": "Purchases of property and equipment",
        "totalLabel": "Payments to Acquire Property, Plant, and Equipment, Total"
       }
      }
     },
     "localname": "PaymentsToAcquirePropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock": {
     "auth_ref": [
      "r220",
      "r221",
      "r227",
      "r228",
      "r229",
      "r230",
      "r231",
      "r232",
      "r233",
      "r234",
      "r235",
      "r236",
      "r238",
      "r394"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for retirement benefits.",
        "label": "Retirement Benefits [Text Block]",
        "terseLabel": "Retirement Plan"
       }
      }
     },
     "localname": "PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureRetirementPlan"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PlanNameAxis": {
     "auth_ref": [
      "r444",
      "r445",
      "r446",
      "r447",
      "r448",
      "r449",
      "r450",
      "r451",
      "r452",
      "r453",
      "r454",
      "r455",
      "r456",
      "r457",
      "r458",
      "r459",
      "r460",
      "r461",
      "r462",
      "r463",
      "r464",
      "r465",
      "r466",
      "r467",
      "r468",
      "r469"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by plan name for share-based payment arrangement.",
        "label": "Plan Name [Axis]",
        "terseLabel": "Plan Name"
       }
      }
     },
     "localname": "PlanNameAxis",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PlanNameDomain": {
     "auth_ref": [
      "r444",
      "r445",
      "r446",
      "r447",
      "r448",
      "r449",
      "r450",
      "r451",
      "r452",
      "r453",
      "r454",
      "r455",
      "r456",
      "r457",
      "r458",
      "r459",
      "r460",
      "r461",
      "r462",
      "r463",
      "r464",
      "r465",
      "r466",
      "r467",
      "r468",
      "r469"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Plan name for share-based payment arrangement.",
        "label": "Plan Name [Domain]",
        "terseLabel": "Plan Name"
       }
      }
     },
     "localname": "PlanNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PreferredStockMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Preferred shares may provide a preferential dividend to the dividend on common stock and may take precedence over common stock in the event of a liquidation. Preferred shares typically represent an ownership interest in the company.",
        "label": "Preferred Stock [Member]",
        "terseLabel": "Preferred Stock [Member]"
       }
      }
     },
     "localname": "PreferredStockMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PreferredStockParOrStatedValuePerShare": {
     "auth_ref": [
      "r2",
      "r210"
     ],
     "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 value"
       }
      }
     },
     "localname": "PreferredStockParOrStatedValuePerShare",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_PreferredStockSharesAuthorized": {
     "auth_ref": [
      "r2"
     ],
     "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"
       }
      }
     },
     "localname": "PreferredStockSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PreferredStockSharesIssued": {
     "auth_ref": [
      "r2",
      "r210"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.",
        "label": "Preferred Stock, Shares Issued",
        "terseLabel": "Preferred stock, shares issued"
       }
      }
     },
     "localname": "PreferredStockSharesIssued",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PreferredStockSharesOutstanding": {
     "auth_ref": [
      "r2"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.",
        "label": "Preferred Stock, Shares Outstanding",
        "periodEndLabel": "Preferred Stock, Shares Outstanding, Ending Balance",
        "periodStartLabel": "Preferred Stock, Shares Outstanding, Beginning Balance",
        "terseLabel": "Preferred stock, shares outstanding"
       }
      }
     },
     "localname": "PreferredStockSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PreferredStockValue": {
     "auth_ref": [
      "r2",
      "r404"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "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 preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.",
        "label": "Preferred Stock, Value, Issued",
        "terseLabel": "Preferred stock, value"
       }
      }
     },
     "localname": "PreferredStockValue",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PrepaidExpenseAndOtherAssetsCurrent": {
     "auth_ref": [
      "r417"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.",
        "label": "Prepaid Expense and Other Assets, Current",
        "terseLabel": "Prepaid expenses and other current assets"
       }
      }
     },
     "localname": "PrepaidExpenseAndOtherAssetsCurrent",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromIssuanceOfCommonStock": {
     "auth_ref": [
      "r30"
     ],
     "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 issuance of common stock",
        "verboseLabel": "Proceeds from issuance of common stock to LPC"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans": {
     "auth_ref": [
      "r30",
      "r71"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash inflow from issuance of shares under share-based payment arrangement. Excludes option exercised.",
        "label": "Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Excluding Option Exercised",
        "terseLabel": "Proceeds from issuance of stock from employee stock purchase plan"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities": {
     "auth_ref": [],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period.",
        "label": "Proceeds from Sale and Maturity of Marketable Securities",
        "terseLabel": "Maturities and sales of marketable securities"
       }
      }
     },
     "localname": "ProceedsFromSaleAndMaturityOfMarketableSecurities",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromStockOptionsExercised": {
     "auth_ref": [
      "r30",
      "r71"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash inflow from exercise of option under share-based payment arrangement.",
        "label": "Proceeds from Stock Options Exercised",
        "terseLabel": "Proceeds from issuance of common stock upon stock option exercises"
       }
      }
     },
     "localname": "ProceedsFromStockOptionsExercised",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProfitLoss": {
     "auth_ref": [
      "r102",
      "r115",
      "r118",
      "r127",
      "r130",
      "r136",
      "r144",
      "r145",
      "r169",
      "r170",
      "r172",
      "r174",
      "r178",
      "r197",
      "r198",
      "r199",
      "r200",
      "r201",
      "r202",
      "r203",
      "r204",
      "r205",
      "r280",
      "r283",
      "r284",
      "r290",
      "r299",
      "r346",
      "r387",
      "r401",
      "r402",
      "r420",
      "r439"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 0.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.",
        "label": "Net Income (Loss), Including Portion Attributable to Noncontrolling Interest",
        "terseLabel": "Net loss",
        "totalLabel": "Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total"
       }
      }
     },
     "localname": "ProfitLoss",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentNet": {
     "auth_ref": [
      "r54",
      "r95",
      "r347",
      "r404"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.",
        "label": "Property, Plant and Equipment, Net",
        "terseLabel": "Property and equipment, net",
        "totalLabel": "Property, Plant and Equipment, Net, Total"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentNet",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ResearchAndDevelopmentExpense": {
     "auth_ref": [
      "r75",
      "r99",
      "r483"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss": {
       "order": 1.0,
       "parentTag": "us-gaap_CostsAndExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.",
        "label": "Research and Development Expense",
        "terseLabel": "Research and development",
        "totalLabel": "Research and Development Expense, Total"
       }
      }
     },
     "localname": "ResearchAndDevelopmentExpense",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ResearchAndDevelopmentExpenseMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Primary financial statement caption in which the reported facts about research and development expense have been included.",
        "label": "Research and Development Expense [Member]",
        "terseLabel": "Research and Development Expenses [Member]"
       }
      }
     },
     "localname": "ResearchAndDevelopmentExpenseMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RestrictedCashCurrent": {
     "auth_ref": [
      "r414",
      "r423"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash 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.",
        "label": "Restricted Cash, Current",
        "terseLabel": "Restricted cash"
       }
      }
     },
     "localname": "RestrictedCashCurrent",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RetainedEarningsAccumulatedDeficit": {
     "auth_ref": [
      "r5",
      "r68",
      "r93",
      "r356",
      "r358",
      "r404"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "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",
        "totalLabel": "Retained Earnings (Accumulated Deficit), Total"
       }
      }
     },
     "localname": "RetainedEarningsAccumulatedDeficit",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNatureOfBusinessAndBasisOfPresentationAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RetainedEarningsMember": {
     "auth_ref": [
      "r100",
      "r133",
      "r134",
      "r135",
      "r137",
      "r143",
      "r145",
      "r179",
      "r274",
      "r275",
      "r276",
      "r278",
      "r279",
      "r288",
      "r353",
      "r355"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
        "label": "Retained Earnings [Member]",
        "terseLabel": "Accumulated Deficit [Member]"
       }
      }
     },
     "localname": "RetainedEarningsMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability": {
     "auth_ref": [
      "r309",
      "r403"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "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]"
       }
      }
     },
     "localname": "SaleOfStockNameOfTransactionDomain",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "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": "Stock offering price, per share"
       }
      }
     },
     "localname": "SaleOfStockPricePerShare",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the (a) 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 (accounts payable); (b) other payables; and (c) accrued liabilities. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). An alternative caption includes accrued expenses.",
        "label": "Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]",
        "terseLabel": "Schedule of Accrued Expenses and Other Current Liabilities"
       }
      }
     },
     "localname": "ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureAccruedExpensesAndOtherCurrentLiabilitiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable": {
     "auth_ref": [
      "r42"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareSummaryOfPotentialDilutiveSecuritiesDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock": {
     "auth_ref": [
      "r42"
     ],
     "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": "Summary of Potential Dilutive Securities"
       }
      }
     },
     "localname": "ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": {
     "auth_ref": [
      "r430"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable": {
     "auth_ref": [
      "r69",
      "r72"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of information about amount recognized for award under share-based payment arrangement. Includes, but is not limited to, amount expensed in statement of income or comprehensive income, amount capitalized in statement of financial position, and corresponding reporting line item in financial statements.",
        "label": "Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table]",
        "terseLabel": "Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table]"
       }
      }
     },
     "localname": "ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock": {
     "auth_ref": [
      "r69"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.",
        "label": "Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]",
        "terseLabel": "Schedule of Stock Based Compensation Expense"
       }
      }
     },
     "localname": "ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock": {
     "auth_ref": [
      "r291",
      "r292"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).",
        "label": "Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]",
        "terseLabel": "Schedule of Financial Assets and Liabilities at Fair Value on Recurring Basis"
       }
      }
     },
     "localname": "ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": {
     "auth_ref": [
      "r239",
      "r241",
      "r243",
      "r244",
      "r245",
      "r246",
      "r247",
      "r248",
      "r249",
      "r250",
      "r251",
      "r252",
      "r253",
      "r254",
      "r255",
      "r256",
      "r257",
      "r258",
      "r259",
      "r260",
      "r261",
      "r262",
      "r263",
      "r264",
      "r265",
      "r266",
      "r267",
      "r268"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfStockByClassTable": {
     "auth_ref": [
      "r57",
      "r58",
      "r59",
      "r61",
      "r62",
      "r63",
      "r65",
      "r66",
      "r67",
      "r68",
      "r108",
      "r109",
      "r110",
      "r162",
      "r210",
      "r211",
      "r212",
      "r213",
      "r214",
      "r216",
      "r217",
      "r391",
      "r413",
      "r424"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SeriesAPreferredStockMember": {
     "auth_ref": [
      "r415",
      "r416",
      "r442"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Series A preferred stock.",
        "label": "Series A Preferred Stock [Member]",
        "terseLabel": "Series A Preferred Stock [Member]"
       }
      }
     },
     "localname": "SeriesAPreferredStockMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareSummaryOfPotentialDilutiveSecuritiesDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensation": {
     "auth_ref": [
      "r33"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "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",
        "totalLabel": "Share-Based Payment Arrangement, Noncash Expense, Total"
       }
      }
     },
     "localname": "ShareBasedCompensation",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod": {
     "auth_ref": [
      "r257"
     ],
     "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": "Number of shares grants"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "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": "Increased in authorized shares reserved for issuance"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized": {
     "auth_ref": [
      "r400"
     ],
     "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 increases in authorized shares"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant": {
     "auth_ref": [
      "r70"
     ],
     "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 available for issuance"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": {
     "auth_ref": [
      "r243",
      "r244",
      "r245",
      "r246",
      "r247",
      "r248",
      "r249",
      "r250",
      "r251",
      "r252",
      "r253",
      "r254",
      "r255",
      "r256",
      "r257",
      "r258",
      "r259",
      "r260",
      "r261",
      "r262",
      "r263",
      "r264",
      "r265",
      "r266",
      "r267",
      "r268"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Award under share-based payment arrangement.",
        "label": "Award Type [Domain]",
        "terseLabel": "Award Type"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SharePrice": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Price of a single share of a number of saleable stocks of a company.",
        "label": "Share Price",
        "terseLabel": "Closing price of stock"
       }
      }
     },
     "localname": "SharePrice",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage": {
     "auth_ref": [
      "r444"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of vesting of award under share-based payment arrangement.",
        "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage",
        "terseLabel": "Percentage of vesting of award"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod": {
     "auth_ref": [
      "r399"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period",
        "terseLabel": "Expiration period"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureStockBasedCompensationAdditionalInformationDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "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 Balances, Shares",
        "periodStartLabel": "Beginning Balances, Shares"
       }
      }
     },
     "localname": "SharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_SignificantAccountingPoliciesTextBlock": {
     "auth_ref": [
      "r41",
      "r129"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for all significant accounting policies of the reporting entity.",
        "label": "Significant Accounting Policies [Text Block]",
        "terseLabel": "Summary of Significant Accounting Policies"
       }
      }
     },
     "localname": "SignificantAccountingPoliciesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_StatementClassOfStockAxis": {
     "auth_ref": [
      "r108",
      "r109",
      "r110",
      "r130",
      "r149",
      "r150",
      "r153",
      "r155",
      "r162",
      "r163",
      "r178",
      "r197",
      "r199",
      "r200",
      "r201",
      "r204",
      "r205",
      "r210",
      "r211",
      "r213",
      "r214",
      "r217",
      "r299",
      "r377",
      "r413",
      "r424",
      "r429"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by the different classes of stock of the entity.",
        "label": "Class of Stock [Axis]",
        "terseLabel": "Class of Stock",
        "verboseLabel": "Series A Non-Voting Convertible Preferred Stock [Member]"
       }
      }
     },
     "localname": "StatementClassOfStockAxis",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementEquityComponentsAxis": {
     "auth_ref": [
      "r16",
      "r60",
      "r100",
      "r120",
      "r121",
      "r122",
      "r133",
      "r134",
      "r135",
      "r137",
      "r143",
      "r145",
      "r161",
      "r179",
      "r219",
      "r274",
      "r275",
      "r276",
      "r278",
      "r279",
      "r288",
      "r300",
      "r301",
      "r302",
      "r303",
      "r304",
      "r306",
      "r310",
      "r353",
      "r354",
      "r355"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by component of equity.",
        "label": "Equity Components [Axis]",
        "terseLabel": "Equity Components"
       }
      }
     },
     "localname": "StatementEquityComponentsAxis",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfCashFlowsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement of Cash Flows [Abstract]"
       }
      }
     },
     "localname": "StatementOfCashFlowsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfFinancialPositionAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement of Financial Position [Abstract]"
       }
      }
     },
     "localname": "StatementOfFinancialPositionAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfStockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement of Stockholders' Equity [Abstract]"
       }
      }
     },
     "localname": "StatementOfStockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementTable": {
     "auth_ref": [
      "r133",
      "r134",
      "r135",
      "r161",
      "r342"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheetsParenthetical",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities": {
     "auth_ref": [
      "r15",
      "r60",
      "r61",
      "r68",
      "r208"
     ],
     "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": "Conversion of preferred stock into common stock, Shares",
        "verboseLabel": "Conversion of Series A non-voting preferred stock into common stock, Shares"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans": {
     "auth_ref": [
      "r2",
      "r3",
      "r60",
      "r68"
     ],
     "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": "Issuance of common stock under Employee Stock Purchase Plan, Shares"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesIssuedForServices": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.",
        "label": "Stock Issued During Period, Shares, Issued for Services",
        "terseLabel": "Issuance of common stock for services, Shares"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesIssuedForServices",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesNewIssues": {
     "auth_ref": [
      "r2",
      "r3",
      "r60",
      "r68"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of new stock issued during the period.",
        "label": "Stock Issued During Period, Shares, New Issues",
        "terseLabel": "Shares of common stock issued and sold",
        "verboseLabel": "Issuance of common stock and pre-funded warrants in underwritten public offering, net of offering costs, Shares"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesNewIssues",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised": {
     "auth_ref": [
      "r2",
      "r3",
      "r60",
      "r68",
      "r251"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of share options (or share units) exercised during the current period.",
        "label": "Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period",
        "terseLabel": "Issuance of common stock upon exercise of stock options, Shares",
        "verboseLabel": "Exercise of stock options additional shares of common stock"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesStockOptionsExercised",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities": {
     "auth_ref": [
      "r16",
      "r60",
      "r68"
     ],
     "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": "Conversion of Series A non-voting preferred stock into common stock"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueConversionOfConvertibleSecurities",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan": {
     "auth_ref": [
      "r2",
      "r3",
      "r60",
      "r68"
     ],
     "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": "Issuance of common stock under Employee Stock Purchase Plan"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueEmployeeStockPurchasePlan",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueIssuedForServices": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders.",
        "label": "Stock Issued During Period, Value, Issued for Services",
        "terseLabel": "Issuance of common stock for services"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueIssuedForServices",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised": {
     "auth_ref": [
      "r16",
      "r60",
      "r68"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Value of stock issued as a result of the exercise of stock options.",
        "label": "Stock Issued During Period, Value, Stock Options Exercised",
        "terseLabel": "Issuance of common stock upon exercise of stock options"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueStockOptionsExercised",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquity": {
     "auth_ref": [
      "r3",
      "r6",
      "r7",
      "r46",
      "r404",
      "r425",
      "r436",
      "r474"
     ],
     "calculation": {
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets": {
       "order": 1.0,
       "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 Balances",
        "periodStartLabel": "Beginning Balances",
        "totalLabel": "Total stockholders\u2019 equity"
       }
      }
     },
     "localname": "StockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfStockholdersEquity"
     ],
     "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/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "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]"
       }
      }
     },
     "localname": "SubsidiarySaleOfStockAxis",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosurePreferredStockSeriesANonVotingConvertiblePreferredStockAndCommonStockAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SupplementalCashFlowInformationAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Supplemental Cash Flow Information [Abstract]",
        "terseLabel": "Supplemental disclosure of cash flow information:"
       }
      }
     },
     "localname": "SupplementalCashFlowInformationAbstract",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain": {
     "auth_ref": [
      "r175",
      "r176",
      "r209",
      "r216",
      "r287",
      "r311",
      "r312",
      "r313",
      "r314",
      "r315",
      "r316",
      "r317",
      "r318",
      "r319",
      "r320",
      "r321",
      "r322",
      "r323",
      "r324",
      "r325",
      "r326",
      "r327",
      "r328",
      "r329",
      "r330",
      "r331",
      "r332",
      "r333",
      "r334",
      "r335",
      "r336",
      "r337",
      "r338",
      "r339",
      "r340",
      "r433",
      "r434",
      "r435",
      "r485",
      "r486",
      "r487",
      "r488",
      "r489",
      "r490",
      "r491"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Instrument or contract that imposes a contractual obligation to deliver cash or another financial instrument or to exchange other financial instruments on potentially unfavorable terms and conveys a contractual right to receive cash or another financial instrument or to exchange other financial instruments on potentially favorable terms.",
        "label": "Financial Instruments [Domain]",
        "terseLabel": "Financial Instruments"
       }
      }
     },
     "localname": "TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfChangesInTheFairValueOfCompanysCvrLiabilityDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesSummaryOfMarketableSecuritiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_TypeOfArrangementAxis": {
     "auth_ref": [
      "r471"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by collaborative arrangement and arrangement other than collaborative applicable to revenue-generating activity or operations.",
        "label": "Collaborative Arrangement and Arrangement Other than Collaborative [Axis]",
        "terseLabel": "Collaborative Arrangement and Arrangement Other than Collaborative"
       }
      }
     },
     "localname": "TypeOfArrangementAxis",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesAdditionalInformationDetail"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_USTreasurySecuritiesMember": {
     "auth_ref": [
      "r384",
      "r392",
      "r394",
      "r484"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "This category includes information about debt securities issued by the United States Department of the Treasury and backed by the United States government. Such securities primarily consist of treasury bills (short-term maturities - one year or less), treasury notes (intermediate term maturities - two to ten years), and treasury bonds (long-term maturities - ten to thirty years).",
        "label": "US Treasury Securities [Member]",
        "verboseLabel": "U.S. Treasury Bills and Notes [Member]"
       }
      }
     },
     "localname": "USTreasurySecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesScheduleOfFinancialAssetsAndLiabilitiesAtFairValueOnRecurringBa"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_UseOfEstimates": {
     "auth_ref": [
      "r43",
      "r44",
      "r45",
      "r164",
      "r165",
      "r166",
      "r167"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.",
        "label": "Use of Estimates, Policy [Policy Text Block]",
        "terseLabel": "Use of Estimates"
       }
      }
     },
     "localname": "UseOfEstimates",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_WarrantsAndRightsOutstandingTerm": {
     "auth_ref": [
      "r473"
     ],
     "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": "CVR liability, term"
       }
      }
     },
     "localname": "WarrantsAndRightsOutstandingTerm",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/DisclosureMarketableSecuritiesAndFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": {
     "auth_ref": [
      "r148",
      "r155"
     ],
     "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",
        "terseLabel": "Weighted average common shares outstanding, diluted",
        "totalLabel": "Weighted Average Number of Shares Outstanding, Diluted, Total"
       }
      }
     },
     "localname": "WeightedAverageNumberOfDilutedSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareScheduleOfEarningsPerShareBasicAndDilutedDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": {
     "auth_ref": [
      "r146",
      "r155"
     ],
     "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 common shares outstanding, basic",
        "totalLabel": "Weighted Average Number of Shares Outstanding, Basic, Total"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingBasic",
     "nsuri": "http://fasb.org/us-gaap/2022",
     "presentation": [
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_DisclosureNetLossPerShareScheduleOfEarningsPerShareBasicAndDilutedDetail",
      "http://www.cogentbio.com/20230331/taxonomy/role/Role_StatementCondensedConsolidatedStatementsOfOperationsAndComprehensiveLoss"
     ],
     "xbrltype": "sharesItemType"
    }
   },
   "unitCount": 4
  }
 },
 "std_ref": {
  "r0": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "205",
   "URI": "https://asc.fasb.org/topic&trid=2122149",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r1": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(27))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r10": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19-26)",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r100": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "105",
   "URI": "https://asc.fasb.org/extlink&oid=126987489&loc=SL124442142-165695",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r101": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5C",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(2)",
   "Topic": "205",
   "URI": "https://asc.fasb.org/extlink&oid=109222650&loc=SL51721675-107760",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r102": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "https://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r103": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r104": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=124098289&loc=d3e6904-107765",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r105": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(1))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r106": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(17))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r107": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(18))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r108": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(27)(b))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r109": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(28))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r11": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.20)",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r110": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(29))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r111": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(4))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r112": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(9))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r113": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126968391&loc=SL7669646-108580",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r114": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126968391&loc=d3e637-108580",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r115": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126968391&loc=SL7669619-108580",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r116": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126968391&loc=SL7669619-108580",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r117": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126968391&loc=SL7669619-108580",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r118": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126968391&loc=SL7669625-108580",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r119": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126968391&loc=SL7669625-108580",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r12": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.21)",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r120": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=124431353&loc=SL124442407-227067",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r121": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=124431353&loc=SL124442411-227067",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r122": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=124431353&loc=SL124452729-227067",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r123": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(21))",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r124": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(24))",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r125": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(25))",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r126": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(7)(d))",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r127": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126954810&loc=d3e3000-108585",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r128": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126954810&loc=d3e3521-108585",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r129": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "235",
   "URI": "https://asc.fasb.org/extlink&oid=126899994&loc=d3e18726-107790",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r13": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.25)",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r130": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(g)(1)(ii))",
   "Topic": "235",
   "URI": "https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r131": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(m)(1)(iii))",
   "Topic": "235",
   "URI": "https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r132": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(m)(2)(ii))",
   "Topic": "235",
   "URI": "https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r133": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "23",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124436220&loc=d3e21914-107793",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r134": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124436220&loc=d3e21930-107793",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r135": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124436220&loc=d3e21711-107793",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r136": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(2)",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r137": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(3)",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r138": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r139": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r14": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29)",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r140": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r141": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r142": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r143": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r144": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124431687&loc=d3e22658-107794",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r145": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124431687&loc=d3e22663-107794",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r146": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=126958026&loc=d3e1448-109256",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r147": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=126958026&loc=d3e1377-109256",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r148": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=126958026&loc=d3e1505-109256",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r149": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=126958026&loc=d3e1252-109256",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r15": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29-30)",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r150": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=126958026&loc=d3e1278-109256",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r151": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=126958026&loc=SL5780133-109256",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r152": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=126958026&loc=SL5780133-109256",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r153": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=126958026&loc=SL5780133-109256",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r154": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=126958026&loc=d3e1337-109256",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r155": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r156": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r157": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r158": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r159": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=128363288&loc=d3e3842-109258",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r16": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29-31)",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r160": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "260",
   "URI": "https://asc.fasb.org/topic&trid=2144383",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r161": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "272",
   "URI": "https://asc.fasb.org/extlink&oid=125520817&loc=d3e70191-108054",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r162": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "272",
   "URI": "https://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r163": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "272",
   "URI": "https://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r164": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "275",
   "URI": "https://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r165": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "275",
   "URI": "https://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r166": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "https://asc.fasb.org/extlink&oid=99393423&loc=d3e6161-108592",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r167": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "https://asc.fasb.org/extlink&oid=99393423&loc=d3e6191-108592",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r168": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r169": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r17": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126968391&loc=SL7669646-108580",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r170": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r171": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r172": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r173": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "280",
   "URI": "https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r174": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "280",
   "URI": "https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r175": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "https://asc.fasb.org/extlink&oid=126970911&loc=d3e27232-111563",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r176": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "https://asc.fasb.org/extlink&oid=126970911&loc=SL120269820-111563",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r177": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "320",
   "URI": "https://asc.fasb.org/extlink&oid=126970911&loc=d3e27357-111563",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r178": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "323",
   "URI": "https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r179": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "326",
   "URI": "https://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r18": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126968391&loc=d3e637-108580",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r180": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "https://asc.fasb.org/extlink&oid=124255953&loc=SL82919244-210447",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r181": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r182": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "https://asc.fasb.org/extlink&oid=124255953&loc=SL82919253-210447",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r183": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "https://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r184": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "https://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r185": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r186": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "https://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r187": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "https://asc.fasb.org/extlink&oid=124269663&loc=SL82922895-210455",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r188": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "https://asc.fasb.org/extlink&oid=124269663&loc=SL82922900-210455",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r189": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "360",
   "URI": "https://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r19": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126968391&loc=d3e681-108580",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r190": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "420",
   "URI": "https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r191": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "440",
   "URI": "https://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r192": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "440",
   "URI": "https://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r193": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "450",
   "URI": "https://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r194": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "450",
   "URI": "https://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r195": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "20",
   "Subparagraph": "(SAB Topic 5.Y.Q2)",
   "Topic": "450",
   "URI": "https://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r196": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "20",
   "Subparagraph": "(SAB Topic 5.Y.Q4)",
   "Topic": "450",
   "URI": "https://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r197": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(i))",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r198": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(iii)(A))",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r199": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(iv))",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r2": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(28))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r20": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126968391&loc=SL7669686-108580",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r200": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(5))",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r201": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(4)(i))",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r202": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(4)(iii)(A))",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r203": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(4)(iii)(B))",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r204": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(4)(iv))",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r205": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(5))",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=126975872&loc=SL124442552-122756",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r206": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(e)",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r207": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r208": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1E",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=123466505&loc=SL123495348-112611",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r209": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1I",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r21": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126968391&loc=d3e557-108580",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r210": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r211": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r212": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r213": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r214": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=SL123496171-112644",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r215": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=SL123496180-112644",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r216": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=SL123496189-112644",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r217": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r218": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r219": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.3-04)",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r22": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=124507222&loc=d3e1436-108581",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r220": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(i)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r221": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iii)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r222": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(01)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r223": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r224": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)(A)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r225": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)(B)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r226": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)(C)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r227": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(03)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r228": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(l)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r229": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(o)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r23": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(20))",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r230": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(p)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r231": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(q)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r232": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(r)(1)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r233": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(r)(2)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r234": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=21916913&loc=d3e273930-122802",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r235": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "60",
   "Subparagraph": "(c)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=6414203&loc=d3e39689-114964",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r236": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "70",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r237": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Subparagraph": "(d)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r238": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "715",
   "URI": "https://asc.fasb.org/topic&trid=2235017",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r239": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1D",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=126961718&loc=SL116886442-113899",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r24": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(4))",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r240": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=126961718&loc=d3e4534-113899",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r241": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=126961718&loc=d3e4549-113899",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r242": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r243": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r244": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(2)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r245": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(3)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r246": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(i)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r247": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(ii)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r248": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iii)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r249": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r25": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03)",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r250": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(01)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r251": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(02)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r252": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(03)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r253": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(04)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r254": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(i)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r255": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(ii)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r256": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r257": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(01)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r258": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(02)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r259": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(03)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r26": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.4)",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r260": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)(1)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r261": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)(2)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r262": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)(1)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r263": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)(2)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r264": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(i)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r265": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(ii)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r266": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(iii)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r267": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(iv)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r268": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(v)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r269": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)(1)(i)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r27": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.7(b))",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r270": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)(2)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r271": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)(2)(i)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r272": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(i)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r273": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(l)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r274": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128097895&loc=SL121327923-165333",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r275": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(f)(1)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128097895&loc=SL121327923-165333",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r276": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128097895&loc=SL121327923-165333",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r277": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "718",
   "URI": "https://asc.fasb.org/topic&trid=2228938",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r278": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)(2)",
   "Topic": "740",
   "URI": "https://asc.fasb.org/extlink&oid=126983759&loc=SL121830611-158277",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r279": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)(3)",
   "Topic": "740",
   "URI": "https://asc.fasb.org/extlink&oid=126983759&loc=SL121830611-158277",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r28": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.7)",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r280": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "19",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "https://asc.fasb.org/extlink&oid=126929396&loc=SL4569616-111683",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r281": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "810",
   "URI": "https://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r282": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "810",
   "URI": "https://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r283": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "810",
   "URI": "https://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r284": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)",
   "Topic": "810",
   "URI": "https://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r285": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bb)",
   "Topic": "810",
   "URI": "https://asc.fasb.org/extlink&oid=123419778&loc=d3e5710-111685",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r286": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "810",
   "URI": "https://asc.fasb.org/extlink&oid=123419778&loc=d3e5710-111685",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r287": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(f)",
   "Topic": "815",
   "URI": "https://asc.fasb.org/extlink&oid=126731327&loc=d3e90205-114008",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r288": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(e)(3)",
   "Topic": "815",
   "URI": "https://asc.fasb.org/extlink&oid=126732423&loc=SL123482106-238011",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r289": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(e)(4)",
   "Topic": "815",
   "URI": "https://asc.fasb.org/extlink&oid=126732423&loc=SL123482106-238011",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r29": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126954810&loc=d3e3213-108585",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r290": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(f)",
   "Topic": "815",
   "URI": "https://asc.fasb.org/extlink&oid=126732423&loc=SL123482106-238011",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r291": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "820",
   "URI": "https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r292": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "820",
   "URI": "https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r293": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)(1)",
   "Topic": "820",
   "URI": "https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r294": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)(2)",
   "Topic": "820",
   "URI": "https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r295": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)",
   "Topic": "820",
   "URI": "https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r296": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r297": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "https://asc.fasb.org/extlink&oid=126976982&loc=d3e19279-110258",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r298": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "https://asc.fasb.org/extlink&oid=126976982&loc=SL6742756-110258",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r299": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "825",
   "URI": "https://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r3": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(29))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r30": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r300": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "https://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r301": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "830",
   "URI": "https://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r302": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(b)",
   "Topic": "830",
   "URI": "https://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r303": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(c)",
   "Topic": "830",
   "URI": "https://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r304": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(d)",
   "Topic": "830",
   "URI": "https://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r305": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "https://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r306": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "https://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r307": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r308": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "https://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r309": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(2)",
   "Topic": "842",
   "URI": "https://asc.fasb.org/extlink&oid=128292326&loc=SL77918686-209980",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r31": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126954810&loc=d3e3521-108585",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r310": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(a)(3)(iii)(03)",
   "Topic": "848",
   "URI": "https://asc.fasb.org/extlink&oid=125980421&loc=SL125981372-237846",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r311": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(2)(i)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r312": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(2)(ii)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r313": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(3)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r314": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(1)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r315": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(2)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r316": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(3)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r317": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(1)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r318": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(2)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r319": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(3)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r32": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126954810&loc=d3e3536-108585",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r320": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(1)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r321": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(2)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r322": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(3)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r323": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r324": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r325": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r326": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(1)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=128311188&loc=d3e122625-111746",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r327": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(2)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=128311188&loc=d3e122625-111746",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r328": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(3)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=128311188&loc=d3e122625-111746",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r329": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(4)(i)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=128311188&loc=d3e122625-111746",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r33": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r330": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(1)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=128311188&loc=d3e122739-111746",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r331": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(2)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=128311188&loc=d3e122739-111746",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r332": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(3)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=128311188&loc=d3e122739-111746",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r333": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(4)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=128311188&loc=d3e122739-111746",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r334": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(5)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=128311188&loc=d3e122739-111746",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r335": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(6)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=128311188&loc=d3e122739-111746",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r336": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(7)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=128311188&loc=d3e122739-111746",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r337": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(b)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=128311188&loc=d3e122739-111746",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r338": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(e)(1)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=128311188&loc=d3e122739-111746",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r339": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(e)(2)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=128311188&loc=d3e122739-111746",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r34": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r340": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(e)(3)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=128311188&loc=d3e122739-111746",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r341": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "910",
   "URI": "https://asc.fasb.org/extlink&oid=126937589&loc=SL119991595-234733",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r342": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 11.L)",
   "Topic": "924",
   "URI": "https://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r343": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(23))",
   "Topic": "942",
   "URI": "https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r344": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(26))",
   "Topic": "942",
   "URI": "https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r345": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(27))",
   "Topic": "942",
   "URI": "https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r346": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "235",
   "Subparagraph": "(SX 210.9-05(b)(2))",
   "Topic": "942",
   "URI": "https://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r347": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "360",
   "Topic": "942",
   "URI": "https://asc.fasb.org/extlink&oid=124429447&loc=SL124453093-239630",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r348": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(23)(a)(3))",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r349": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(19))",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r35": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r350": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(22))",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r351": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(23))",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r352": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(d)",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=124506351&loc=SL117782755-158439",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r353": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(e)",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r354": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(f)(1)",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r355": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(f)(2)",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r356": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(g)(2)(i)",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r357": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(g)(2)(ii)",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r358": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(h)(2)",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r359": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 1))",
   "Topic": "946",
   "URI": "https://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r36": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126954810&loc=d3e3044-108585",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r360": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 6))",
   "Topic": "946",
   "URI": "https://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r361": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 7))",
   "Topic": "946",
   "URI": "https://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r362": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 1))",
   "Topic": "946",
   "URI": "https://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r363": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 6))",
   "Topic": "946",
   "URI": "https://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r364": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 7))",
   "Topic": "946",
   "URI": "https://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r365": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 1))",
   "Topic": "946",
   "URI": "https://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r366": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 6))",
   "Topic": "946",
   "URI": "https://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r367": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 7))",
   "Topic": "946",
   "URI": "https://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r368": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5D",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-13D(Column B)(Footnote 2))",
   "Topic": "946",
   "URI": "https://asc.fasb.org/extlink&oid=122147990&loc=SL120429264-123010",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r369": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5D",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-13D(Column C)(Footnote 2))",
   "Topic": "946",
   "URI": "https://asc.fasb.org/extlink&oid=122147990&loc=SL120429264-123010",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r37": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126999549&loc=d3e4304-108586",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r370": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column A))",
   "Topic": "946",
   "URI": "https://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r371": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column B))",
   "Topic": "946",
   "URI": "https://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r372": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column C))",
   "Topic": "946",
   "URI": "https://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r373": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column D))",
   "Topic": "946",
   "URI": "https://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r374": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "440",
   "Subparagraph": "(a)",
   "Topic": "954",
   "URI": "https://asc.fasb.org/extlink&oid=6491277&loc=d3e6429-115629",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r375": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "310",
   "Subparagraph": "(c)",
   "Topic": "976",
   "URI": "https://asc.fasb.org/extlink&oid=6497875&loc=d3e22274-108663",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r376": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "310",
   "Subparagraph": "(b)",
   "Topic": "978",
   "URI": "https://asc.fasb.org/extlink&oid=126945304&loc=d3e27327-108691",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r377": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(a)",
   "Publisher": "SEC",
   "Section": "1402",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r378": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(b)",
   "Publisher": "SEC",
   "Section": "1403",
   "role": "http://www.xbrl.org/2003/role/disclosureRef"
  },
  "r379": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r38": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126999549&loc=d3e4313-108586",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r380": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=99393222&loc=SL20226024-175313",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r381": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=99393222&loc=SL20226049-175313",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r382": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r383": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "235",
   "URI": "https://asc.fasb.org/extlink&oid=126899994&loc=d3e18823-107790",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r384": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(m)(1)(ii)(A))",
   "Topic": "235",
   "URI": "https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r385": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "52",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=128363288&loc=d3e4984-109258",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r386": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "280",
   "URI": "https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r387": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "31",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "https://asc.fasb.org/extlink&oid=126901519&loc=d3e8924-108599",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r388": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "https://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r389": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "69B",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r39": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126999549&loc=d3e4332-108586",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r390": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "69C",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r391": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r392": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(ii)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r393": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(01)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r394": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r395": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Subparagraph": "(a)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r396": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Subparagraph": "(a)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=65877416&loc=SL14450673-114947",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r397": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "80",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=35742348&loc=SL14450788-114948",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r398": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r399": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(2)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r4": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(1))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r40": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126999549&loc=SL98516268-108586",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r400": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(3)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r401": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4J",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "https://asc.fasb.org/extlink&oid=120409616&loc=SL4591551-111686",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r402": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4K",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "https://asc.fasb.org/extlink&oid=120409616&loc=SL4591552-111686",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r403": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "53",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "https://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r404": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "852",
   "URI": "https://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r405": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "29F",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=126561865&loc=SL117819544-158441",
   "role": "http://www.xbrl.org/2003/role/exampleRef"
  },
  "r406": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b",
   "role": "http://www.xbrl.org/2003/role/presentationRef"
  },
  "r407": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-2",
   "role": "http://www.xbrl.org/2003/role/presentationRef"
  },
  "r408": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "d1-1",
   "role": "http://www.xbrl.org/2003/role/presentationRef"
  },
  "r409": {
   "Name": "Form 10-Q",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "308",
   "Subsection": "a",
   "role": "http://www.xbrl.org/2003/role/presentationRef"
  },
  "r41": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "235",
   "URI": "https://asc.fasb.org/topic&trid=2122369",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r410": {
   "Name": "Forms 10-K, 10-Q, 20-F",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13",
   "Subsection": "a-1",
   "role": "http://www.xbrl.org/2003/role/presentationRef"
  },
  "r411": {
   "Name": "Regulation S-T",
   "Number": "232",
   "Publisher": "SEC",
   "Section": "405",
   "role": "http://www.xbrl.org/2003/role/presentationRef"
  },
  "r412": {
   "Name": "Securities Act",
   "Number": "7A",
   "Publisher": "SEC",
   "Section": "B",
   "Subsection": "2",
   "role": "http://www.xbrl.org/2003/role/presentationRef"
  },
  "r413": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "272",
   "URI": "https://asc.fasb.org/extlink&oid=125520817&loc=d3e70229-108054",
   "role": "http://www.xbrl.org/2003/role/recommendedDisclosureRef"
  },
  "r414": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(1))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r415": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(27)(b))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r416": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(28))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r417": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(9))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r418": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=124431353&loc=SL124442407-227067",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r419": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=124431353&loc=SL124442411-227067",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r42": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r420": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "https://asc.fasb.org/extlink&oid=124431353&loc=SL124452729-227067",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r421": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r422": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r423": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "https://asc.fasb.org/extlink&oid=126999549&loc=SL98516268-108586",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r424": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(d))",
   "Topic": "235",
   "URI": "https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r425": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(g)(1)(ii))",
   "Topic": "235",
   "URI": "https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r426": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "23",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124436220&loc=d3e21914-107793",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r427": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124436220&loc=d3e21930-107793",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r428": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "https://asc.fasb.org/extlink&oid=124436220&loc=d3e21711-107793",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r429": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "55",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=126958026&loc=d3e2626-109256",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r43": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "https://asc.fasb.org/extlink&oid=99393423&loc=d3e6061-108592",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r430": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "260",
   "URI": "https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r431": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "320",
   "URI": "https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r432": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "320",
   "URI": "https://asc.fasb.org/topic&trid=2196928",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r433": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "321",
   "URI": "https://asc.fasb.org/extlink&oid=126980263&loc=SL75117539-209714",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r434": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "321",
   "URI": "https://asc.fasb.org/extlink&oid=126980263&loc=SL75117539-209714",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r435": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "321",
   "URI": "https://asc.fasb.org/extlink&oid=126980263&loc=SL75117539-209714",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r436": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "323",
   "URI": "https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r437": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(c)",
   "Topic": "410",
   "URI": "https://asc.fasb.org/extlink&oid=6393242&loc=d3e13237-110859",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r438": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "450",
   "URI": "https://asc.fasb.org/topic&trid=2127136",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r439": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(ii))",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r44": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "https://asc.fasb.org/extlink&oid=99393423&loc=d3e6132-108592",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r440": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(iii))",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=126975872&loc=SL124442526-122756",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r441": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "470",
   "URI": "https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r442": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r443": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(ii)",
   "Topic": "715",
   "URI": "https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r444": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r445": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(2)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r446": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(3)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r447": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(i)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r448": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(ii)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r449": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iii)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r45": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "https://asc.fasb.org/extlink&oid=99393423&loc=d3e6143-108592",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r450": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r451": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(01)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r452": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(02)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r453": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(03)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r454": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(04)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r455": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(i)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r456": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(ii)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r457": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r458": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(01)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r459": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(02)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r46": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 4.E)",
   "Topic": "310",
   "URI": "https://asc.fasb.org/extlink&oid=122038336&loc=d3e74512-122707",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r460": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(03)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r461": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)(1)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r462": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)(2)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r463": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)(1)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r464": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)(2)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r465": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(i)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r466": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(ii)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r467": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(iii)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r468": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(iv)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r469": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(v)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r47": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "https://asc.fasb.org/extlink&oid=124260329&loc=d3e26853-111562",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r470": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(i)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r471": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "808",
   "URI": "https://asc.fasb.org/extlink&oid=6931272&loc=SL5834143-161434",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r472": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(e)(3)",
   "Topic": "815",
   "URI": "https://asc.fasb.org/extlink&oid=126732423&loc=SL123482106-238011",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r473": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)(2)",
   "Topic": "820",
   "URI": "https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r474": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "825",
   "URI": "https://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r475": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "852",
   "URI": "https://asc.fasb.org/extlink&oid=124433192&loc=SL2890621-112765",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r476": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "852",
   "URI": "https://asc.fasb.org/extlink&oid=124433192&loc=SL2890621-112765",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r477": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(1)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r478": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(2)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r479": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(3)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r48": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "https://asc.fasb.org/extlink&oid=124260329&loc=d3e26626-111562",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r480": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(1)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r481": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(2)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r482": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(3)",
   "Topic": "860",
   "URI": "https://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r483": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "730",
   "Topic": "912",
   "URI": "https://asc.fasb.org/extlink&oid=6472174&loc=d3e58812-109433",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r484": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Subparagraph": "(b)",
   "Topic": "942",
   "URI": "https://asc.fasb.org/extlink&oid=126980459&loc=d3e62557-112803",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r485": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(a)",
   "Publisher": "SEC",
   "Section": "1402",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r486": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(b)",
   "Publisher": "SEC",
   "Section": "1402",
   "Subparagraph": "(1)",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r487": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(b)",
   "Publisher": "SEC",
   "Section": "1402",
   "Subparagraph": "(2)",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r488": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(b)",
   "Publisher": "SEC",
   "Section": "1402",
   "Subparagraph": "(3)",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r489": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(c)",
   "Publisher": "SEC",
   "Section": "1402",
   "Subparagraph": "(2)(i)",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r49": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "320",
   "URI": "https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r490": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(c)",
   "Publisher": "SEC",
   "Section": "1402",
   "Subparagraph": "(2)(ii)",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r491": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(c)",
   "Publisher": "SEC",
   "Section": "1402",
   "Subparagraph": "(2)(iii)",
   "role": "http://www.xbrl.org/2009/role/commonPracticeRef"
  },
  "r5": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(3))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r50": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "320",
   "URI": "https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r51": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "320",
   "URI": "https://asc.fasb.org/topic&trid=2196928",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r52": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "360",
   "URI": "https://asc.fasb.org/extlink&oid=126905981&loc=d3e2443-110228",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r53": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "360",
   "URI": "https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r54": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "360",
   "URI": "https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r55": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "360",
   "URI": "https://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r56": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "440",
   "URI": "https://asc.fasb.org/topic&trid=2144648",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r57": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(CFRR 211.02)",
   "Topic": "480",
   "URI": "https://asc.fasb.org/extlink&oid=122040564&loc=d3e177068-122764",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r58": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=65888546&loc=d3e21300-112643",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r59": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=d3e21553-112644",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r6": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r60": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r61": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r62": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=d3e21484-112644",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r63": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=d3e21488-112644",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r64": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=d3e21506-112644",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r65": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=d3e21506-112644",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r66": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=d3e21521-112644",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r67": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=126973232&loc=d3e21538-112644",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r68": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.3-04)",
   "Topic": "505",
   "URI": "https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r69": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)(1)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r7": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(31))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r70": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r71": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=128089324&loc=SL79508275-113901",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r72": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 14.F)",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r73": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=126964447&loc=d3e11149-113907",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r74": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "718",
   "URI": "https://asc.fasb.org/extlink&oid=126964447&loc=d3e11178-113907",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r75": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "730",
   "URI": "https://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r76": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "808",
   "URI": "https://asc.fasb.org/extlink&oid=6931272&loc=SL5834143-161434",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r77": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "https://asc.fasb.org/extlink&oid=109239629&loc=d3e5614-111684",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r78": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c),(3)",
   "Topic": "810",
   "URI": "https://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r79": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "810",
   "URI": "https://asc.fasb.org/topic&trid=2197479",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r8": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(32))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r80": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "820",
   "URI": "https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r81": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "820",
   "URI": "https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r82": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)",
   "Topic": "820",
   "URI": "https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r83": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "https://asc.fasb.org/extlink&oid=126976982&loc=d3e19279-110258",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r84": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "230",
   "Topic": "830",
   "URI": "https://asc.fasb.org/extlink&oid=123444420&loc=d3e33268-110906",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r85": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "320",
   "Topic": "940",
   "URI": "https://asc.fasb.org/subtopic&trid=2176304",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r86": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(11))",
   "Topic": "942",
   "URI": "https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r87": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(23))",
   "Topic": "942",
   "URI": "https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r88": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.17)",
   "Topic": "942",
   "URI": "https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r89": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(22))",
   "Topic": "942",
   "URI": "https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r9": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19(a))",
   "Topic": "210",
   "URI": "https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r90": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Topic": "942",
   "URI": "https://asc.fasb.org/extlink&oid=126980459&loc=d3e62652-112803",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r91": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "320",
   "Topic": "942",
   "URI": "https://asc.fasb.org/subtopic&trid=2209399",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r92": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(12))",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r93": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r94": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(25))",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r95": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(8))",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r96": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03.(a),19)",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r97": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(18))",
   "Topic": "944",
   "URI": "https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r98": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "320",
   "Topic": "946",
   "URI": "https://asc.fasb.org/subtopic&trid=2324412",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  },
  "r99": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "985",
   "URI": "https://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756",
   "role": "http://fasb.org/us-gaap/role/ref/legacyRef"
  }
 },
 "version": "2.2"
}
