{
 "instance": {
  "aigltd20211231_10k.htm": {
   "axisCustom": 0,
   "axisStandard": 18,
   "contextCount": 237,
   "dts": {
    "calculationLink": {
     "local": [
      "aigt-20211231_cal.xml"
     ]
    },
    "definitionLink": {
     "local": [
      "aigt-20211231_def.xml"
     ]
    },
    "inline": {
     "local": [
      "aigltd20211231_10k.htm"
     ]
    },
    "labelLink": {
     "local": [
      "aigt-20211231_lab.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "aigt-20211231_pre.xml"
     ]
    },
    "schema": {
     "local": [
      "aigt-20211231.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/net-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/2021/elts/srt-2021-01-31.xsd",
      "https://xbrl.fasb.org/srt/2021/elts/srt-roles-2021-01-31.xsd",
      "https://xbrl.fasb.org/srt/2021/elts/srt-types-2021-01-31.xsd",
      "https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd",
      "https://xbrl.fasb.org/us-gaap/2021/elts/us-roles-2021-01-31.xsd",
      "https://xbrl.fasb.org/us-gaap/2021/elts/us-types-2021-01-31.xsd",
      "https://xbrl.sec.gov/country/2021/country-2021.xsd",
      "https://xbrl.sec.gov/currency/2021/currency-2021.xsd",
      "https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd",
      "https://xbrl.sec.gov/exch/2021/exch-2021.xsd",
      "https://xbrl.sec.gov/naics/2021/naics-2021.xsd",
      "https://xbrl.sec.gov/sic/2021/sic-2021.xsd",
      "https://xbrl.sec.gov/stpr/2021/stpr-2021.xsd"
     ]
    }
   },
   "elementCount": 437,
   "entityCount": 1,
   "hidden": {
    "http://fasb.org/us-gaap/2021-01-31": 35,
    "http://www.amerinst.bm/20211231": 3,
    "http://xbrl.sec.gov/dei/2021q4": 6,
    "total": 44
   },
   "keyCustom": 29,
   "keyStandard": 261,
   "memberCustom": 14,
   "memberStandard": 33,
   "nsprefix": "aigt",
   "nsuri": "http://www.amerinst.bm/20211231",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "b",
       "p",
       "div",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "document",
     "isDefault": "true",
     "longName": "000 - Document - Document And Entity Information",
     "role": "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information",
     "shortName": "Document And Entity Information",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "b",
       "p",
       "div",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R10": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:TransfersAndServicingOfFinancialAssetsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "009 - Disclosure - Note 3 - Pledged Assets",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets",
     "shortName": "Note 3 - Pledged Assets",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:TransfersAndServicingOfFinancialAssetsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R11": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "010 - Disclosure - Note 4 - Investments",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-4-investments",
     "shortName": "Note 4 - Investments",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R12": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "011 - Disclosure - Note 5 - Property and Equipment",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment",
     "shortName": "Note 5 - Property and Equipment",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R13": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:IncomeTaxDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "012 - Disclosure - Note 6 - Taxation",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-6-taxation",
     "shortName": "Note 6 - Taxation",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:IncomeTaxDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R14": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OtherAssetsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "013 - Disclosure - Note 7 - Prepaid Expenses and Other Assets",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets",
     "shortName": "Note 7 - Prepaid Expenses and Other Assets",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OtherAssetsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R15": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "014 - Disclosure - Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses",
     "shortName": "Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R16": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OtherLiabilitiesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "015 - Disclosure - Note 9 - Accrued Expenses and Other Liabilities",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities",
     "shortName": "Note 9 - Accrued Expenses and Other Liabilities",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OtherLiabilitiesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R17": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "016 - Disclosure - Note 10 - Shareholders' Equity",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-10-shareholders-equity",
     "shortName": "Note 10 - Shareholders' Equity",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R18": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "aigt:PremiumswrittenTextblock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "017 - Disclosure - Note 11 - Premiums Written",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-11-premiums-written",
     "shortName": "Note 11 - Premiums Written",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "aigt:PremiumswrittenTextblock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R19": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "aigt:OperatingAndManagementExpenseDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "018 - Disclosure - Note 12 - Operating and Management Expenses",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses",
     "shortName": "Note 12 - Operating and Management Expenses",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "aigt:OperatingAndManagementExpenseDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R2": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:AvailableForSaleSecuritiesDebtSecurities",
      "reportCount": 1,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "001 - Statement - Consolidated Balance Sheets",
     "role": "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-",
     "shortName": "Consolidated Balance Sheets",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:RestrictedCashAndInvestments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R20": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RestrictionsOnDividendsLoansAndAdvancesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "019 - Disclosure - Note 13 - Dividend Restrictions and Statutory Requirements",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements",
     "shortName": "Note 13 - Dividend Restrictions and Statutory Requirements",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RestrictionsOnDividendsLoansAndAdvancesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R21": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SegmentReportingDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "020 - Disclosure - Note 14 - Segment Information",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information",
     "shortName": "Note 14 - Segment Information",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SegmentReportingDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R22": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "021 - Disclosure - Note 15 - Stock Compensation",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation",
     "shortName": "Note 15 - Stock Compensation",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R23": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "022 - Disclosure - Note 16 - Commitments and Contingencies",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-16-commitments-and-contingencies",
     "shortName": "Note 16 - Commitments and Contingencies",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R24": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:QuarterlyFinancialInformationTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "023 - Disclosure - Note 17 - Unaudited Condensed Quarterly Financial Data",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data",
     "shortName": "Note 17 - Unaudited Condensed Quarterly Financial Data",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:QuarterlyFinancialInformationTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R25": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:SignificantAccountingPoliciesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "024 - Disclosure - Significant Accounting Policies (Policies)",
     "role": "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies",
     "shortName": "Significant Accounting Policies (Policies)",
     "subGroupType": "policies",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:SignificantAccountingPoliciesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R26": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "025 - Disclosure - Note 4 - Investments (Tables)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-4-investments-tables",
     "shortName": "Note 4 - Investments (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R27": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "026 - Disclosure - Note 5 - Property and Equipment (Tables)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-tables",
     "shortName": "Note 5 - Property and Equipment (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R28": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:IncomeTaxDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "027 - Disclosure - Note 6 - Taxation (Tables)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-tables",
     "shortName": "Note 6 - Taxation (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:IncomeTaxDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R29": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:OtherAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "028 - Disclosure - Note 7 - Prepaid Expenses and Other Assets (Tables)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-tables",
     "shortName": "Note 7 - Prepaid Expenses and Other Assets (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:OtherAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R3": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis",
      "reportCount": 1,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "002 - Statement - Consolidated Balance Sheets (Parentheticals)",
     "role": "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-parentheticals",
     "shortName": "Consolidated Balance Sheets (Parentheticals)",
     "subGroupType": "parenthetical",
     "uniqueAnchor": null
    },
    "R30": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "029 - Disclosure - Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses (Tables)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-tables",
     "shortName": "Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R31": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:OtherLiabilitiesDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OtherLiabilitiesTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "030 - Disclosure - Note 9 - Accrued Expenses and Other Liabilities (Tables)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-tables",
     "shortName": "Note 9 - Accrued Expenses and Other Liabilities (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:OtherLiabilitiesDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OtherLiabilitiesTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R32": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:RestrictionsOnDividendsLoansAndAdvancesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DividendsDeclaredTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "031 - Disclosure - Note 13 - Dividend Restrictions and Statutory Requirements (Tables)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-tables",
     "shortName": "Note 13 - Dividend Restrictions and Statutory Requirements (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:RestrictionsOnDividendsLoansAndAdvancesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DividendsDeclaredTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R33": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:SegmentReportingDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "032 - Disclosure - Note 14 - Segment Information (Tables)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-tables",
     "shortName": "Note 14 - Segment Information (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:SegmentReportingDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R34": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "033 - Disclosure - Note 15 - Stock Compensation (Tables)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-tables",
     "shortName": "Note 15 - Stock Compensation (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R35": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:QuarterlyFinancialInformationTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "034 - Disclosure - Note 17 - Unaudited Condensed Quarterly Financial Data (Tables)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-tables",
     "shortName": "Note 17 - Unaudited Condensed Quarterly Financial Data (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:QuarterlyFinancialInformationTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R36": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-10-01_2021-10-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:PaymentsForReinsurance",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "035 - Disclosure - Note 1 - Description of Business (Details Textual)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business-details-textual",
     "shortName": "Note 1 - Description of Business (Details Textual)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-10-01_2021-10-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:PaymentsForReinsurance",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R37": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "us-gaap:PropertyPlantAndEquipmentPolicyTextBlock",
       "us-gaap:SignificantAccountingPoliciesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31_FiniteLivedIntangibleAssetsByMajorClassAxis-CapitalizedInternalUseSoftwareCostsMember",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FiniteLivedIntangibleAssetUsefulLife",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "036 - Disclosure - Note 2 - Significant Accounting Policies (Details Textual)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies-details-textual",
     "shortName": "Note 2 - Significant Accounting Policies (Details Textual)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:PropertyPlantAndEquipmentPolicyTextBlock",
       "us-gaap:SignificantAccountingPoliciesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31_FiniteLivedIntangibleAssetsByMajorClassAxis-CapitalizedInternalUseSoftwareCostsMember",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FiniteLivedIntangibleAssetUsefulLife",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R38": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "us-gaap:TransfersAndServicingOfFinancialAssetsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:SecuredDebt",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "037 - Disclosure - Note 3 - Pledged Assets (Details Textual)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets-details-textual",
     "shortName": "Note 3 - Pledged Assets (Details Textual)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:TransfersAndServicingOfFinancialAssetsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:SecuredDebt",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R39": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPosition",
      "reportCount": 1,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "038 - Disclosure - Note 4 - Investments (Details Textual)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-4-investments-details-textual",
     "shortName": "Note 4 - Investments (Details Textual)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31_InvestmentTypeAxis-FixedMaturitiesMember",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions",
      "reportCount": 1,
      "unique": true,
      "unitRef": "Pure",
      "xsiNil": "false"
     }
    },
    "R4": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:PremiumsEarnedNet",
      "reportCount": 1,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "003 - Statement - Consolidated Statements of Operations",
     "role": "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations",
     "shortName": "Consolidated Statements of Operations",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:PolicyholderBenefitsAndClaimsIncurredNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R40": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:AvailableForSaleDebtSecuritiesAmortizedCostBasis",
      "reportCount": 1,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "039 - Disclosure - Note 4 - Investments - Cost or Amortized Cost, Gross Unrealized Holding Gains and Losses, and Estimated Fair Value of Fixed Maturity Investments (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details",
     "shortName": "Note 4 - Investments - Cost or Amortized Cost, Gross Unrealized Holding Gains and Losses, and Estimated Fair Value of Fixed Maturity Investments (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R41": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "040 - Disclosure - Note 4 - Investments - Fixed Maturity and Securities in an Unrealized Loss Position and Aggregate Fair Value and Gross Unrealized Loss (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details",
     "shortName": "Note 4 - Investments - Fixed Maturity and Securities in an Unrealized Loss Position and Aggregate Fair Value and Gross Unrealized Loss (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R42": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "041 - Disclosure - Note 4 - Investments - Cost or Amortized Cost and Estimated Fair Value of Fixed Maturity Investments (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details",
     "shortName": "Note 4 - Investments - Cost or Amortized Cost and Estimated Fair Value of Fixed Maturity Investments (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:InvestmentsClassifiedByContractualMaturityDateTableTextBlock",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R43": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:ProceedsFromSaleOfAvailableForSaleSecuritiesDebt",
      "reportCount": 1,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "042 - Disclosure - Note 4 - Investments - Sales and Maturities of Investments (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details",
     "shortName": "Note 4 - Investments - Sales and Maturities of Investments (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:RealizedGainLossOnInvestmentsTableTextBlock",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:GainOnSaleOfInvestments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R44": {
     "firstAnchor": null,
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "043 - Disclosure - Note 4 - Investments - Fair Value of Investments (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details",
     "shortName": "Note 4 - Investments - Fair Value of Investments (Details)",
     "subGroupType": "details",
     "uniqueAnchor": null
    },
    "R45": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "srt:ScheduleOfCondensedCashFlowStatementTableTextBlock",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:InterestIncomeDebtSecuritiesAvailableForSaleOperating",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "044 - Disclosure - Note 4 - Investments - Major Categories of Net Interest and Dividend Income (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details",
     "shortName": "Note 4 - Investments - Major Categories of Net Interest and Dividend Income (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "srt:ScheduleOfCondensedCashFlowStatementTableTextBlock",
       "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:InterestIncomeDebtSecuritiesAvailableForSaleOperating",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R46": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:PropertyPlantAndEquipmentNet",
      "reportCount": 1,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "045 - Disclosure - Note 5 - Property and Equipment (Details Textual)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-details-textual",
     "shortName": "Note 5 - Property and Equipment (Details Textual)",
     "subGroupType": "details",
     "uniqueAnchor": null
    },
    "R47": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:PropertyPlantAndEquipmentTextBlock",
       "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:PropertyPlantAndEquipmentGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "046 - Disclosure - Note 5 - Property and Equipment - Property and Equipment (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-property-and-equipment-details",
     "shortName": "Note 5 - Property and Equipment - Property and Equipment (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:PropertyPlantAndEquipmentTextBlock",
       "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:PropertyPlantAndEquipmentGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R48": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "us-gaap:IncomeTaxDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:EffectiveIncomeTaxRateContinuingOperations",
      "reportCount": 1,
      "unique": true,
      "unitRef": "Pure",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "047 - Disclosure - Note 6 - Taxation (Details Textual)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-details-textual",
     "shortName": "Note 6 - Taxation (Details Textual)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:IncomeTaxDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:EffectiveIncomeTaxRateContinuingOperations",
      "reportCount": 1,
      "unique": true,
      "unitRef": "Pure",
      "xsiNil": "false"
     }
    },
    "R49": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock",
       "us-gaap:IncomeTaxDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "aigt:IncomeFromContinuingOperationsBeforeIncomeTaxesNoncontrollingInterest",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "048 - Disclosure - Note 6 - Taxation - Effective Income Tax Rate Reconciliation (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details",
     "shortName": "Note 6 - Taxation - Effective Income Tax Rate Reconciliation (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock",
       "us-gaap:IncomeTaxDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "aigt:IncomeFromContinuingOperationsBeforeIncomeTaxesNoncontrollingInterest",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R5": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "004 - Statement - Consolidated Statements of Comprehensive Loss",
     "role": "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss",
     "shortName": "Consolidated Statements of Comprehensive Loss",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R50": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock",
       "us-gaap:IncomeTaxDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "aigt:CapitalizedStartupExpenses",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "049 - Disclosure - Note 6 - Taxation - Deferred Tax Assets (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-deferred-tax-assets-details",
     "shortName": "Note 6 - Taxation - Deferred Tax Assets (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock",
       "us-gaap:IncomeTaxDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "aigt:CapitalizedStartupExpenses",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R51": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock",
       "us-gaap:OtherAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:PrepaidExpenseCurrentAndNoncurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "050 - Disclosure - Note 7 - Prepaid Expenses and Other Assets - Prepaid Expenses (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details",
     "shortName": "Note 7 - Prepaid Expenses and Other Assets - Prepaid Expenses (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock",
       "us-gaap:OtherAssetsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:PrepaidExpenseCurrentAndNoncurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R52": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "aigt:EstimatedLossRatio",
      "reportCount": 1,
      "unique": true,
      "unitRef": "Pure",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "051 - Disclosure - Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses (Details Textual)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-details-textual",
     "shortName": "Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses (Details Textual)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "aigt:EstimatedLossRatio",
      "reportCount": 1,
      "unique": true,
      "unitRef": "Pure",
      "xsiNil": "false"
     }
    },
    "R53": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense",
       "us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedClaimsAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "052 - Disclosure - Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses - Liability for Unpaid Losses and Loss Adjustment Expenses (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-unpaid-losses-and-loss-adjustment-expenses-details",
     "shortName": "Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses - Liability for Unpaid Losses and Loss Adjustment Expenses (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense",
       "us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedClaimsAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R54": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2020-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet",
      "reportCount": 1,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "053 - Disclosure - Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses - Liability for Losses and Loss Adjustment Expense Activity (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details",
     "shortName": "Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses - Liability for Losses and Loss Adjustment Expense Activity (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "aigt:LiabilityForLossesAndLossAdjustmentExpenseActivityTabletextblock",
       "us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2019-12-31",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R55": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "aigt:ShortdurationInsuranceContractsIncurredClaimsAndAllocatedClaimAdjustmentExpenseTableTextBlock",
       "us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShortdurationInsuranceContractsIncurredClaimsAndAllocatedClaimAdjustmentExpenseNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "054 - Disclosure - Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses - Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance (Unaudited) (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
     "shortName": "Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses - Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance (Unaudited) (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "aigt:ShortdurationInsuranceContractsIncurredClaimsAndAllocatedClaimAdjustmentExpenseTableTextBlock",
       "us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShortdurationInsuranceContractsIncurredClaimsAndAllocatedClaimAdjustmentExpenseNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R56": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "aigt:ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseTableTextBlock",
       "us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "055 - Disclosure - Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses - Paid Claims and Allocated Claim Adjustment Expense, Net of Reinsurance (Unaudited) (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
     "shortName": "Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses - Paid Claims and Allocated Claim Adjustment Expense, Net of Reinsurance (Unaudited) (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "aigt:ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseTableTextBlock",
       "us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R57": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ShortdurationInsuranceContractsScheduleOfHistoricalClaimsDurationTableTextBlock",
       "us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShortdurationInsuranceContractsHistoricalClaimsDurationYearTwo",
      "reportCount": 1,
      "unique": true,
      "unitRef": "Pure",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "056 - Disclosure - Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses - Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Unaudited) (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details",
     "shortName": "Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses - Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Unaudited) (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ShortdurationInsuranceContractsScheduleOfHistoricalClaimsDurationTableTextBlock",
       "us-gaap:LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShortdurationInsuranceContractsHistoricalClaimsDurationYearTwo",
      "reportCount": 1,
      "unique": true,
      "unitRef": "Pure",
      "xsiNil": "false"
     }
    },
    "R58": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:OtherLiabilitiesTableTextBlock",
       "us-gaap:OtherLiabilitiesDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "aigt:PremiumsPayable",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "057 - Disclosure - Note 9 - Accrued Expenses and Other Liabilities - Accrued Expenses and Other Liabilities (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details",
     "shortName": "Note 9 - Accrued Expenses and Other Liabilities - Accrued Expenses and Other Liabilities (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:OtherLiabilitiesTableTextBlock",
       "us-gaap:OtherLiabilitiesDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "aigt:PremiumsPayable",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R59": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2011-02-25",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:StockRepurchaseProgramAuthorizedAmount1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "058 - Disclosure - Note 10 - Shareholders' Equity (Details Textual)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-10-shareholders-equity-details-textual",
     "shortName": "Note 10 - Shareholders' Equity (Details Textual)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2011-02-25",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:StockRepurchaseProgramAuthorizedAmount1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R6": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2019-12-31_StatementEquityComponentsAxis-CommonStockMember",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:SharesOutstanding",
      "reportCount": 1,
      "unique": true,
      "unitRef": "Share",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "005 - Statement - Consolidated Statements of Changes in Shareholders' Equity",
     "role": "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-",
     "shortName": "Consolidated Statements of Changes in Shareholders' Equity",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2019-12-31_StatementEquityComponentsAxis-CommonStockMember",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:SharesOutstanding",
      "reportCount": 1,
      "unique": true,
      "unitRef": "Share",
      "xsiNil": "false"
     }
    },
    "R60": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "aigt:PremiumswrittenTextblock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:AssumedPremiumsWritten",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "059 - Disclosure - Note 11 - Premiums Written (Details Textual)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-11-premiums-written-details-textual",
     "shortName": "Note 11 - Premiums Written (Details Textual)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "aigt:PremiumswrittenTextblock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:AssumedPremiumsWritten",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R61": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "aigt:OperatingAndManagementExpenseDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:OtherGeneralAndAdministrativeExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "060 - Disclosure - Note 12 - Operating and Management Expenses (Details Textual)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses-details-textual",
     "shortName": "Note 12 - Operating and Management Expenses (Details Textual)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "aigt:OperatingAndManagementExpenseDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:OtherGeneralAndAdministrativeExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R62": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "us-gaap:RestrictionsOnDividendsLoansAndAdvancesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithRegulatoryApproval",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "061 - Disclosure - Note 13 - Dividend Restrictions and Statutory Requirements (Details Textual)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-details-textual",
     "shortName": "Note 13 - Dividend Restrictions and Statutory Requirements (Details Textual)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:RestrictionsOnDividendsLoansAndAdvancesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithRegulatoryApproval",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R63": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:DividendsDeclaredTableTextBlock",
       "us-gaap:RestrictionsOnDividendsLoansAndAdvancesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:StatutoryAccountingPracticesStatutoryCapitalAndSurplusRequired",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "062 - Disclosure - Note 13 - Dividend Restrictions and Statutory Requirements - Summary of Levels of Solvency and Liquidity (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-summary-of-levels-of-solvency-and-liquidity-details",
     "shortName": "Note 13 - Dividend Restrictions and Statutory Requirements - Summary of Levels of Solvency and Liquidity (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:DividendsDeclaredTableTextBlock",
       "us-gaap:RestrictionsOnDividendsLoansAndAdvancesTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:StatutoryAccountingPracticesStatutoryCapitalAndSurplusRequired",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R64": {
     "firstAnchor": null,
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "063 - Disclosure - Note 14 - Segment Information (Details Textual)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-details-textual",
     "shortName": "Note 14 - Segment Information (Details Textual)",
     "subGroupType": "details",
     "uniqueAnchor": null
    },
    "R65": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock",
       "us-gaap:QuarterlyFinancialInformationTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-10-01_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:Revenues",
      "reportCount": 1,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "064 - Disclosure - Note 14 - Segment Information - Segment Reporting Information (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-segment-reporting-information-details",
     "shortName": "Note 14 - Segment Information - Segment Reporting Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock",
       "us-gaap:SegmentReportingDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "lang": null,
      "name": "aigt:CostsAndExpensesIncludingTaxes",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R66": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2018-10-01_2018-10-01",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross",
      "reportCount": 1,
      "unitRef": "Share",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "065 - Disclosure - Note 15 - Stock Compensation (Details Textual)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual",
     "shortName": "Note 15 - Stock Compensation (Details Textual)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R67": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfOtherShareBasedCompensationActivityTableTextBlock",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2020-12-31_AwardTypeAxis-PhantomShareUnitsPSUsMember",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "Share",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "066 - Disclosure - Note 15 - Stock Compensation - Summary of Vested Phantom Shares (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-vested-phantom-shares-details",
     "shortName": "Note 15 - Stock Compensation - Summary of Vested Phantom Shares (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfOtherShareBasedCompensationActivityTableTextBlock",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2020-12-31_AwardTypeAxis-PhantomShareUnitsPSUsMember",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "Share",
      "xsiNil": "false"
     }
    },
    "R68": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2020-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber",
      "reportCount": 1,
      "unitRef": "Share",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "067 - Disclosure - Note 15 - Stock Compensation - Summary of the Status of the Stock Option Plan (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details",
     "shortName": "Note 15 - Stock Compensation - Summary of the Status of the Stock Option Plan (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USDPerShare",
      "xsiNil": "false"
     }
    },
    "R69": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis-ExercisePriceRange1Member",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions",
      "reportCount": 1,
      "unique": true,
      "unitRef": "Share",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "068 - Disclosure - Note 15 - Stock Compensation - Summary of Options Outstanding by Exercise Price Range (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details",
     "shortName": "Note 15 - Stock Compensation - Summary of Options Outstanding by Exercise Price Range (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock",
       "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis-ExercisePriceRange1Member",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions",
      "reportCount": 1,
      "unique": true,
      "unitRef": "Share",
      "xsiNil": "false"
     }
    },
    "R7": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:NetIncomeLoss",
      "reportCount": 1,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "006 - Statement - Consolidated Statements of Cash Flows",
     "role": "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows",
     "shortName": "Consolidated Statements of Cash Flows",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:AccretionAmortizationOfDiscountsAndPremiumsInvestments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R70": {
     "firstAnchor": {
      "ancestors": [
       "p",
       "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "069 - Disclosure - Note 16 - Commitments and Contingencies (Details Textual)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-16-commitments-and-contingencies-details-textual",
     "shortName": "Note 16 - Commitments and Contingencies (Details Textual)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "p",
       "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "i_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R71": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock",
       "us-gaap:QuarterlyFinancialInformationTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-10-01_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:PremiumsEarnedNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "070 - Disclosure - Note 17 - Unaudited Condensed Quarterly Financial Data - Quarterly Financial Information (Details)",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details",
     "shortName": "Note 17 - Unaudited Condensed Quarterly Financial Data - Quarterly Financial Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "tbody",
       "table",
       "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock",
       "us-gaap:QuarterlyFinancialInformationTextBlock",
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-10-01_2021-12-31",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:PremiumsEarnedNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "USD",
      "xsiNil": "false"
     }
    },
    "R8": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "007 - Disclosure - Note 1 - Description of Business",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business",
     "shortName": "Note 1 - Description of Business",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R9": {
     "firstAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SignificantAccountingPoliciesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "008 - Disclosure - Note 2 - Significant Accounting Policies",
     "role": "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies",
     "shortName": "Note 2 - Significant Accounting Policies",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "body",
       "html"
      ],
      "baseRef": "aigltd20211231_10k.htm",
      "contextRef": "d_2021-01-01_2021-12-31",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SignificantAccountingPoliciesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    }
   },
   "segmentCount": 48,
   "tag": {
    "aigt_AccruedExpensesAndOtherLiabilitiesMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents information included in the line item Accrued Expenses and Other Liabilities.",
        "label": "Accrued Expenses and Other Liabilities [Member]"
       }
      }
     },
     "localname": "AccruedExpensesAndOtherLiabilitiesMember",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details"
     ],
     "xbrltype": "domainItemType"
    },
    "aigt_AmerinstInsuranceCompanyLtdAmicLtdMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents AmerInst Insurance Company, Ltd. (\u201cAMIC Ltd.\u201d).",
        "label": "AmerInst Insurance Company, Ltd. (AMIC Ltd.) [Member]"
       }
      }
     },
     "localname": "AmerinstInsuranceCompanyLtdAmicLtdMember",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-details-textual"
     ],
     "xbrltype": "domainItemType"
    },
    "aigt_CapitalizedInternalUseSoftwareCostsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Internally developed software for internal use.",
        "label": "Capitalized Internal Use Software Costs [Member]"
       }
      }
     },
     "localname": "CapitalizedInternalUseSoftwareCostsMember",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies-details-textual"
     ],
     "xbrltype": "domainItemType"
    },
    "aigt_CapitalizedStartupExpenses": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-deferred-tax-assets-details": {
       "order": 3.0,
       "parentTag": "us-gaap_DeferredTaxAssetsNet",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "label": "Capitalized start-up expenses"
       }
      }
     },
     "localname": "CapitalizedStartupExpenses",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-deferred-tax-assets-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_CashAndCashEquivalentsHeldByAmerInstProfessionalServicesLimitedInAFiduciaryCapacityMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Refers to information regarding cash and cash equivalents held by AmerInst Professional Services, Limited in a fiduciary capacity.",
        "label": "Cash and Cash Equivalents Held by AmerInst Professional Services, Limited in a Fiduciary Capacity [Member]"
       }
      }
     },
     "localname": "CashAndCashEquivalentsHeldByAmerInstProfessionalServicesLimitedInAFiduciaryCapacityMember",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets",
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets-details-textual"
     ],
     "xbrltype": "domainItemType"
    },
    "aigt_CollateralObligationsAmountFailureToMeet": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of collateral obligations by AMIC Ltd, failed to meet under C&amp;F requirements.",
        "label": "aigt_CollateralObligationsAmountFailureToMeet",
        "terseLabel": "Collateral Obligations, Amount, Failure to Meet"
       }
      }
     },
     "localname": "CollateralObligationsAmountFailureToMeet",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_CostsAndExpensesIncludingTaxes": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of costs and expenses, including taxes.",
        "label": "aigt_CostsAndExpensesIncludingTaxes",
        "terseLabel": "Total losses and expenses"
       }
      }
     },
     "localname": "CostsAndExpensesIncludingTaxes",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-segment-reporting-information-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsAmount": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details": {
       "order": 3.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in deferred tax assets.",
        "label": "Change in deferred tax asset of US subsidiary"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsAmount",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_EquitySecuritiesAndHedgeFundsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents the total of equity securities and hedge funds.",
        "label": "Equity Securities and Hedge Funds [Member]"
       }
      }
     },
     "localname": "EquitySecuritiesAndHedgeFundsMember",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "domainItemType"
    },
    "aigt_EstimatedLossRatio": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The estimated input used to calculate the amount of incurred losses.",
        "label": "aigt_EstimatedLossRatio",
        "terseLabel": "Estimated Loss Ratio"
       }
      }
     },
     "localname": "EstimatedLossRatio",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-details-textual"
     ],
     "xbrltype": "percentItemType"
    },
    "aigt_ExercisePriceRange1Member": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information related to exercise price range 1.",
        "label": "Exercise Price Range 1 [Member]"
       }
      }
     },
     "localname": "ExercisePriceRange1Member",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details"
     ],
     "xbrltype": "domainItemType"
    },
    "aigt_ExercisePriceRange2Member": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information related to exercise price range 2.",
        "label": "Exercise Price Range 2 [Member]"
       }
      }
     },
     "localname": "ExercisePriceRange2Member",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details"
     ],
     "xbrltype": "domainItemType"
    },
    "aigt_ExercisePriceRange3Member": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information related to exercise price range 3.",
        "label": "Exercise Price Range 3 [Member]"
       }
      }
     },
     "localname": "ExercisePriceRange3Member",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details"
     ],
     "xbrltype": "domainItemType"
    },
    "aigt_FundsHeldWithReinsurer": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details": {
       "order": 2.0,
       "parentTag": "us-gaap_PrepaidExpenseAndOtherAssets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of funds held with reinsurer.",
        "label": "aigt_FundsHeldWithReinsurer",
        "verboseLabel": "Funds held with reinsurer"
       }
      }
     },
     "localname": "FundsHeldWithReinsurer",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_IncomeFromContinuingOperationsBeforeIncomeTaxesNoncontrollingInterest": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of income from continuing operations, including income from equity method investments, before deduction of income tax expense (benefit), and income attributable to noncontrolling interest.",
        "label": "Earnings before income tax"
       }
      }
     },
     "localname": "IncomeFromContinuingOperationsBeforeIncomeTaxesNoncontrollingInterest",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_InsuranceSegmentMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents information pertaining to the insurance segment.",
        "label": "Insurance Segment [Member]"
       }
      }
     },
     "localname": "InsuranceSegmentMember",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-segment-reporting-information-details"
     ],
     "xbrltype": "domainItemType"
    },
    "aigt_InvestmentIncomeExpenseDividend": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details": {
       "order": 2.0,
       "parentTag": "us-gaap_NetInvestmentIncome",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of dividend income (expense) on nonoperating securities.",
        "label": "Dividends earned"
       }
      }
     },
     "localname": "InvestmentIncomeExpenseDividend",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_LiabilityForLossesAndLossAdjustmentExpenseActivityTabletextblock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the entire activity for liability for losses and loss adjustment expenses.",
        "label": "Liability For Losses and Loss Adjustment Expense Activity [Table Text Block]"
       }
      }
     },
     "localname": "LiabilityForLossesAndLossAdjustmentExpenseActivityTabletextblock",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "aigt_NetRealizedAndUnrealizedGainLossOnInvestmentsTotal": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 11.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      },
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations": {
       "order": 1.0,
       "parentTag": "us-gaap_Revenues",
       "weight": 1.0
      },
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents the net change in the difference between the fair value and the carrying value, or in the comparative fair values, of investments, not including unrealized gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, held at each balance sheet date and included in earnings for the period and the net realized gains or losses on investments during the period, not including gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.",
        "label": "Net realized and unrealized gain (loss) on investments (Note 4)",
        "negatedLabel": "Net realized and unrealized (gains) losses on investments",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "NetRealizedAndUnrealizedGainLossOnInvestmentsTotal",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_NoteToFinancialStatementDetailsTextual": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note To Financial Statement Details Textual"
       }
      }
     },
     "localname": "NoteToFinancialStatementDetailsTextual",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_NotesToFinancialStatementsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Notes To Financial Statements [Abstract]"
       }
      }
     },
     "localname": "NotesToFinancialStatementsAbstract",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_OperatingAndManagementExpenseDisclosureTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure of operating and management expenses incurred by the reporting entity.",
        "label": "Operating and Management Expense Disclosure [Text Block]"
       }
      }
     },
     "localname": "OperatingAndManagementExpenseDisclosureTextBlock",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses"
     ],
     "xbrltype": "textBlockItemType"
    },
    "aigt_OtherComprehensiveLossIncomeAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "OTHER COMPREHENSIVE (LOSS) INCOME"
       }
      }
     },
     "localname": "OtherComprehensiveLossIncomeAbstract",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss"
     ],
     "xbrltype": "stringItemType"
    },
    "aigt_PolicyAcquisitionCostsAndOtherAsssets": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details": {
       "order": 4.0,
       "parentTag": "us-gaap_PrepaidExpenseAndOtherAssets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of policy acquisition costs and other assets.",
        "label": "aigt_PolicyAcquisitionCostsAndOtherAsssets",
        "verboseLabel": "Policy acquisition costs and other assets"
       }
      }
     },
     "localname": "PolicyAcquisitionCostsAndOtherAsssets",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_PremiumsPayable": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details": {
       "order": 2.0,
       "parentTag": "us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents premiums payable.",
        "label": "Premiums payable"
       }
      }
     },
     "localname": "PremiumsPayable",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_PremiumswrittenTextblock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure of premiums written by the reporting entity.",
        "label": "Premiums Written [Text Block]"
       }
      }
     },
     "localname": "PremiumswrittenTextblock",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-11-premiums-written"
     ],
     "xbrltype": "textBlockItemType"
    },
    "aigt_PrepaidExpensesAndOtherAssetsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents information included in the line item Prepaid Expenses and Other Assets.",
        "label": "Prepaid Expenses and Other Assets [Member]"
       }
      }
     },
     "localname": "PrepaidExpensesAndOtherAssetsMember",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details"
     ],
     "xbrltype": "domainItemType"
    },
    "aigt_ProceedsFromRedemptionsOfFixedMaturityInvestments": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Proceeds from redemptions of fixed maturity investments.",
        "label": "Proceeds from redemptions of fixed maturity investments"
       }
      }
     },
     "localname": "ProceedsFromRedemptionsOfFixedMaturityInvestments",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_PurchaseOfSharesBySubsidiary": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Purchase of Shares by Subsidiary",
        "label": "Purchase of shares by subsidiary, net"
       }
      }
     },
     "localname": "PurchaseOfSharesBySubsidiary",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_ReinsuanceBusinessRealizedGainNet": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "This item represents the net gain realized during the period from the reinsurance business.",
        "label": "aigt_ReinsuanceBusinessRealizedGainNet",
        "terseLabel": "Reinsuance Business, Realized Gain, Net"
       }
      }
     },
     "localname": "ReinsuanceBusinessRealizedGainNet",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_ReinsuranceAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents the Reinsurance agreement between Amerinst and its subsidiary, AMIC, Ltd.",
        "label": "Reinsurance Agreement [Member]"
       }
      }
     },
     "localname": "ReinsuranceAgreementMember",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "domainItemType"
    },
    "aigt_ReinsuranceSegmentMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents information pertaining to the reinsurance segment.",
        "label": "Reinsurance Segment [Member]"
       }
      }
     },
     "localname": "ReinsuranceSegmentMember",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-segment-reporting-information-details"
     ],
     "xbrltype": "domainItemType"
    },
    "aigt_RelevantAssetsActual": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Actual relevant assets.",
        "label": "aigt_RelevantAssetsActual",
        "terseLabel": "Relevant Assets, Actual"
       }
      }
     },
     "localname": "RelevantAssetsActual",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-summary-of-levels-of-solvency-and-liquidity-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_RelevantAssetsMinimum": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Minimum relevant assets.",
        "label": "aigt_RelevantAssetsMinimum",
        "terseLabel": "Relevant Assets, Minimum"
       }
      }
     },
     "localname": "RelevantAssetsMinimum",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-summary-of-levels-of-solvency-and-liquidity-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_ReversalOfAllocatedSharebasedCompensation": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of reversal of expense for award under share-based payment arrangement. Excludes amount capitalized.",
        "label": "aigt_ReversalOfAllocatedSharebasedCompensation",
        "terseLabel": "Reversal of Allocated Share-based Comepensation"
       }
      }
     },
     "localname": "ReversalOfAllocatedSharebasedCompensation",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_SeniorManagementMemberOneMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents one senior management member.",
        "label": "Senior Management Member One [Member]"
       }
      }
     },
     "localname": "SeniorManagementMemberOneMember",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual"
     ],
     "xbrltype": "domainItemType"
    },
    "aigt_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsValuePayableRequisiteEmployeeAge": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The share based compensation arrangement for equity instruments other than options, value payable, requisite employee age.",
        "label": "aigt_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsValuePayableRequisiteEmployeeAge",
        "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Value, Payable Requisite Employee Age (Year)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsValuePayableRequisiteEmployeeAge",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual"
     ],
     "xbrltype": "durationItemType"
    },
    "aigt_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionNonvestedInPeriodWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average grant-date fair value of non-vested options in the period.",
        "label": "Vested, weighted average exercise price per share, non-vested (in dollars per share)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionNonvestedInPeriodWeightedAverageExercisePrice",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "perShareItemType"
    },
    "aigt_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedRemainingContractualLife": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The remaining contractual life of nonvested shares based payment awards.",
        "label": "Remaining contractual life (years), non-vested shares (Year)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedRemainingContractualLife",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "durationItemType"
    },
    "aigt_SharesHeldBySubsidiaryMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Shares Held By Subsidiary",
        "label": "Shares Held By Subsidiary [Member]"
       }
      }
     },
     "localname": "SharesHeldBySubsidiaryMember",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-"
     ],
     "xbrltype": "domainItemType"
    },
    "aigt_SharesHeldBySubsidiaryShares": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Shares held by subsidiary, shares",
        "label": "Shares held by Subsidiary (in shares)"
       }
      }
     },
     "localname": "SharesHeldBySubsidiaryShares",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-parentheticals"
     ],
     "xbrltype": "sharesItemType"
    },
    "aigt_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of undiscounted information about paid claims and allocated claim adjustment expense used in claims development by accident year for short-duration insurance contracts.",
        "label": "Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense [Table Text Block]"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseTableTextBlock",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "aigt_ShortdurationInsuranceContractsIncurredClaimsAndAllocatedClaimAdjustmentExpenseTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of undiscounted information about incurred claims and allocated claim adjustment expense used in claims development by accident year for short-duration insurance contracts.",
        "label": "Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense [Table Text Block]"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsIncurredClaimsAndAllocatedClaimAdjustmentExpenseTableTextBlock",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "aigt_StatutoryLoss": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Statutory loss.",
        "label": "aigt_StatutoryLoss",
        "terseLabel": "Statutory Loss"
       }
      }
     },
     "localname": "StatutoryLoss",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_TerminationNoticeForManagementAgreement": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents the notice that either party must provide for terminating management agreement.",
        "label": "aigt_TerminationNoticeForManagementAgreement",
        "terseLabel": "Termination Notice for Management Agreement (Day)"
       }
      }
     },
     "localname": "TerminationNoticeForManagementAgreement",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses-details-textual"
     ],
     "xbrltype": "durationItemType"
    },
    "aigt_UnearnedCommissionIncome": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details": {
       "order": 1.0,
       "parentTag": "us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents unearned commission income.",
        "label": "aigt_UnearnedCommissionIncome",
        "verboseLabel": "Unearned commission income"
       }
      }
     },
     "localname": "UnearnedCommissionIncome",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "aigt_WeightedAverageNumberOfSharesOutstandingBasicAndDilutedAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Represents the weighted average number of basic and dilutes shares outstanding.",
        "label": "Weighted average number of common shares outstanding for the year"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingBasicAndDilutedAbstract",
     "nsuri": "http://www.amerinst.bm/20211231",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations"
     ],
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-13-dividend-restrictions-and-statutory-requirements-summary-of-levels-of-solvency-and-liquidity-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 13 - Dividend Restrictions and Statutory Requirements - Summary of Levels of Solvency and Liquidity (Details)"
       }
      }
     },
     "localname": "statement-statement-note-13-dividend-restrictions-and-statutory-requirements-summary-of-levels-of-solvency-and-liquidity-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-13-dividend-restrictions-and-statutory-requirements-tables": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 13 - Dividend Restrictions and Statutory Requirements"
       }
      }
     },
     "localname": "statement-statement-note-13-dividend-restrictions-and-statutory-requirements-tables",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-14-segment-information-segment-reporting-information-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 14 - Segment Information - Segment Reporting Information (Details)"
       }
      }
     },
     "localname": "statement-statement-note-14-segment-information-segment-reporting-information-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-14-segment-information-tables": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 14 - Segment Information"
       }
      }
     },
     "localname": "statement-statement-note-14-segment-information-tables",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 15 - Stock Compensation - Summary of Options Outstanding by Exercise Price Range (Details)"
       }
      }
     },
     "localname": "statement-statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 15 - Stock Compensation - Summary of the Status of the Stock Option Plan (Details)"
       }
      }
     },
     "localname": "statement-statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-15-stock-compensation-summary-of-vested-phantom-shares-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 15 - Stock Compensation - Summary of Vested Phantom Shares (Details)"
       }
      }
     },
     "localname": "statement-statement-note-15-stock-compensation-summary-of-vested-phantom-shares-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-15-stock-compensation-tables": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 15 - Stock Compensation"
       }
      }
     },
     "localname": "statement-statement-note-15-stock-compensation-tables",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 17 - Unaudited Condensed Quarterly Financial Data - Quarterly Financial Information (Details)"
       }
      }
     },
     "localname": "statement-statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-17-unaudited-condensed-quarterly-financial-data-tables": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 17 - Unaudited Condensed Quarterly Financial Data"
       }
      }
     },
     "localname": "statement-statement-note-17-unaudited-condensed-quarterly-financial-data-tables",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 4 - Investments - Cost or Amortized Cost and Estimated Fair Value of Fixed Maturity Investments (Details)"
       }
      }
     },
     "localname": "statement-statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 4 - Investments - Cost or Amortized Cost, Gross Unrealized Holding Gains and Losses, and Estimated Fair Value of Fixed Maturity Investments (Details)"
       }
      }
     },
     "localname": "statement-statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-4-investments-fair-value-of-investments-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 4 - Investments - Fair Value of Investments (Details)"
       }
      }
     },
     "localname": "statement-statement-note-4-investments-fair-value-of-investments-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 4 - Investments - Fixed Maturity and Securities in an Unrealized Loss Position and Aggregate Fair Value and Gross Unrealized Loss (Details)"
       }
      }
     },
     "localname": "statement-statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 4 - Investments - Major Categories of Net Interest and Dividend Income (Details)"
       }
      }
     },
     "localname": "statement-statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-4-investments-sales-and-maturities-of-investments-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 4 - Investments - Sales and Maturities of Investments (Details)"
       }
      }
     },
     "localname": "statement-statement-note-4-investments-sales-and-maturities-of-investments-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-4-investments-tables": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 4 - Investments"
       }
      }
     },
     "localname": "statement-statement-note-4-investments-tables",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-5-property-and-equipment-property-and-equipment-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 5 - Property and Equipment - Property and Equipment (Details)"
       }
      }
     },
     "localname": "statement-statement-note-5-property-and-equipment-property-and-equipment-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-5-property-and-equipment-tables": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 5 - Property and Equipment"
       }
      }
     },
     "localname": "statement-statement-note-5-property-and-equipment-tables",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-6-taxation-deferred-tax-assets-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 6 - Taxation - Deferred Tax Assets (Details)"
       }
      }
     },
     "localname": "statement-statement-note-6-taxation-deferred-tax-assets-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-6-taxation-effective-income-tax-rate-reconciliation-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 6 - Taxation - Effective Income Tax Rate Reconciliation (Details)"
       }
      }
     },
     "localname": "statement-statement-note-6-taxation-effective-income-tax-rate-reconciliation-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-6-taxation-tables": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 6 - Taxation"
       }
      }
     },
     "localname": "statement-statement-note-6-taxation-tables",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 7 - Prepaid Expenses and Other Assets - Prepaid Expenses (Details)"
       }
      }
     },
     "localname": "statement-statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-7-prepaid-expenses-and-other-assets-tables": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 7 - Prepaid Expenses and Other Assets"
       }
      }
     },
     "localname": "statement-statement-note-7-prepaid-expenses-and-other-assets-tables",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses - Average Annual Percentage Payout of Incurred Claims by Age, Net of Reinsurance (Unaudited) (Details)"
       }
      }
     },
     "localname": "statement-statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses - Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance (Unaudited) (Details)"
       }
      }
     },
     "localname": "statement-statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses - Liability for Losses and Loss Adjustment Expense Activity (Details)"
       }
      }
     },
     "localname": "statement-statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-unpaid-losses-and-loss-adjustment-expenses-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses - Liability for Unpaid Losses and Loss Adjustment Expenses (Details)"
       }
      }
     },
     "localname": "statement-statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-unpaid-losses-and-loss-adjustment-expenses-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses - Paid Claims and Allocated Claim Adjustment Expense, Net of Reinsurance (Unaudited) (Details)"
       }
      }
     },
     "localname": "statement-statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-tables": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 8 - Liability for Unpaid Losses and Loss Adjustment Expenses"
       }
      }
     },
     "localname": "statement-statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-tables",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 9 - Accrued Expenses and Other Liabilities - Accrued Expenses and Other Liabilities (Details)"
       }
      }
     },
     "localname": "statement-statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-note-9-accrued-expenses-and-other-liabilities-tables": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Note 9 - Accrued Expenses and Other Liabilities"
       }
      }
     },
     "localname": "statement-statement-note-9-accrued-expenses-and-other-liabilities-tables",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "aigt_statement-statement-significant-accounting-policies-policies": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Significant Accounting Policies"
       }
      }
     },
     "localname": "statement-statement-significant-accounting-policies-policies",
     "nsuri": "http://www.amerinst.bm/20211231",
     "xbrltype": "stringItemType"
    },
    "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"
       }
      }
     },
     "localname": "AmendmentFlag",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_AuditorFirmId": {
     "auth_ref": [
      "r525",
      "r526",
      "r527"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "PCAOB issued Audit Firm Identifier",
        "label": "Auditor Firm ID"
       }
      }
     },
     "localname": "AuditorFirmId",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "nonemptySequenceNumberItemType"
    },
    "dei_AuditorLocation": {
     "auth_ref": [
      "r525",
      "r526",
      "r527"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Auditor Location"
       }
      }
     },
     "localname": "AuditorLocation",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "internationalNameItemType"
    },
    "dei_AuditorName": {
     "auth_ref": [
      "r525",
      "r526",
      "r527"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "Auditor Name"
       }
      }
     },
     "localname": "AuditorName",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "internationalNameItemType"
    },
    "dei_CityAreaCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Area code of city",
        "label": "City Area Code"
       }
      }
     },
     "localname": "CityAreaCode",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "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"
       }
      }
     },
     "localname": "CurrentFiscalYearEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "gMonthDayItemType"
    },
    "dei_DocumentAnnualReport": {
     "auth_ref": [
      "r525",
      "r526",
      "r527"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true only for a form used as an annual report.",
        "label": "Document Annual Report"
       }
      }
     },
     "localname": "DocumentAnnualReport",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "booleanItemType"
    },
    "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"
       }
      }
     },
     "localname": "DocumentFiscalPeriodFocus",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "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"
       }
      }
     },
     "localname": "DocumentFiscalYearFocus",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "gYearItemType"
    },
    "dei_DocumentInformationLineItems": {
     "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": "Document Information [Line Items]"
       }
      }
     },
     "localname": "DocumentInformationLineItems",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "stringItemType"
    },
    "dei_DocumentInformationTable": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Container to support the formal attachment of each official or unofficial, public or private document as part of a submission package.",
        "label": "Document Information [Table]"
       }
      }
     },
     "localname": "DocumentInformationTable",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "xbrltype": "stringItemType"
    },
    "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"
       }
      }
     },
     "localname": "DocumentPeriodEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "dateItemType"
    },
    "dei_DocumentTransitionReport": {
     "auth_ref": [
      "r528"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Boolean flag that is true only for a form used as a transition report.",
        "label": "Document Transition Report"
       }
      }
     },
     "localname": "DocumentTransitionReport",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "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"
       }
      }
     },
     "localname": "DocumentType",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "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"
       }
      }
     },
     "localname": "EntityAddressAddressLine1",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressCityOrTown": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Name of the City or Town",
        "label": "Entity Address, City or Town"
       }
      }
     },
     "localname": "EntityAddressCityOrTown",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressCountry": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "ISO 3166-1 alpha-2 country code.",
        "label": "Entity Address, Country"
       }
      }
     },
     "localname": "EntityAddressCountry",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "countryCodeItemType"
    },
    "dei_EntityAddressPostalZipCode": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Code for the postal or zip code",
        "label": "Entity Address, Postal Zip Code"
       }
      }
     },
     "localname": "EntityAddressPostalZipCode",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityCentralIndexKey": {
     "auth_ref": [
      "r524"
     ],
     "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"
       }
      }
     },
     "localname": "EntityCentralIndexKey",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "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"
       }
      }
     },
     "localname": "EntityCommonStockSharesOutstanding",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "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"
       }
      }
     },
     "localname": "EntityCurrentReportingStatus",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains.",
        "label": "Entity [Domain]"
       }
      }
     },
     "localname": "EntityDomain",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-parentheticals",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations",
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information",
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business",
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-10-shareholders-equity",
      "http://www.amerinst.bm/20211231/role/statement-note-10-shareholders-equity-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-11-premiums-written",
      "http://www.amerinst.bm/20211231/role/statement-note-11-premiums-written-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-summary-of-levels-of-solvency-and-liquidity-details",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-segment-reporting-information-details",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-vested-phantom-shares-details",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-16-commitments-and-contingencies",
      "http://www.amerinst.bm/20211231/role/statement-note-16-commitments-and-contingencies-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets",
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-property-and-equipment-details",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-deferred-tax-assets-details",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets",
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details",
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-unpaid-losses-and-loss-adjustment-expenses-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-tables",
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "xbrltype": "domainItemType"
    },
    "dei_EntityEmergingGrowthCompany": {
     "auth_ref": [
      "r524"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate if registrant meets the emerging growth company criteria.",
        "label": "Entity Emerging Growth Company"
       }
      }
     },
     "localname": "EntityEmergingGrowthCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "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"
       }
      }
     },
     "localname": "EntityFileNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "fileNumberItemType"
    },
    "dei_EntityFilerCategory": {
     "auth_ref": [
      "r524"
     ],
     "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"
       }
      }
     },
     "localname": "EntityFilerCategory",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "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"
       }
      }
     },
     "localname": "EntityIncorporationStateCountryCode",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "edgarStateCountryItemType"
    },
    "dei_EntityInteractiveDataCurrent": {
     "auth_ref": [
      "r537"
     ],
     "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"
       }
      }
     },
     "localname": "EntityInteractiveDataCurrent",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityPublicFloat": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.",
        "label": "Entity Public Float"
       }
      }
     },
     "localname": "EntityPublicFloat",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dei_EntityRegistrantName": {
     "auth_ref": [
      "r524"
     ],
     "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"
       }
      }
     },
     "localname": "EntityRegistrantName",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityShellCompany": {
     "auth_ref": [
      "r524"
     ],
     "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"
       }
      }
     },
     "localname": "EntityShellCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntitySmallBusiness": {
     "auth_ref": [
      "r524"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicates that the company is a Smaller Reporting Company (SRC).",
        "label": "Entity Small Business"
       }
      }
     },
     "localname": "EntitySmallBusiness",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityTaxIdentificationNumber": {
     "auth_ref": [
      "r524"
     ],
     "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"
       }
      }
     },
     "localname": "EntityTaxIdentificationNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "employerIdItemType"
    },
    "dei_EntityVoluntaryFilers": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate 'Yes' or 'No' if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.",
        "label": "Entity Voluntary Filers"
       }
      }
     },
     "localname": "EntityVoluntaryFilers",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityWellKnownSeasonedIssuer": {
     "auth_ref": [
      "r539"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Indicate 'Yes' or 'No' if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A.",
        "label": "Entity Well-known Seasoned Issuer"
       }
      }
     },
     "localname": "EntityWellKnownSeasonedIssuer",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_IcfrAuditorAttestationFlag": {
     "auth_ref": [
      "r525",
      "r526",
      "r527"
     ],
     "lang": {
      "en-us": {
       "role": {
        "label": "ICFR Auditor Attestation Flag"
       }
      }
     },
     "localname": "IcfrAuditorAttestationFlag",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_LegalEntityAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The set of legal entities associated with a report.",
        "label": "Legal Entity [Axis]"
       }
      }
     },
     "localname": "LegalEntityAxis",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-parentheticals",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations",
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information",
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business",
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-10-shareholders-equity",
      "http://www.amerinst.bm/20211231/role/statement-note-10-shareholders-equity-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-11-premiums-written",
      "http://www.amerinst.bm/20211231/role/statement-note-11-premiums-written-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-summary-of-levels-of-solvency-and-liquidity-details",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-segment-reporting-information-details",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-vested-phantom-shares-details",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-16-commitments-and-contingencies",
      "http://www.amerinst.bm/20211231/role/statement-note-16-commitments-and-contingencies-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets",
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-property-and-equipment-details",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-deferred-tax-assets-details",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets",
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details",
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-unpaid-losses-and-loss-adjustment-expenses-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-tables",
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "xbrltype": "stringItemType"
    },
    "dei_LocalPhoneNumber": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Local phone number for entity.",
        "label": "Local Phone Number"
       }
      }
     },
     "localname": "LocalPhoneNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r523"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Title of a 12(b) registered security.",
        "label": "Title of 12(b) Security"
       }
      }
     },
     "localname": "Security12bTitle",
     "nsuri": "http://xbrl.sec.gov/dei/2021q4",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-document-and-entity-information"
     ],
     "xbrltype": "securityTitleItemType"
    },
    "srt_DirectorMember": {
     "auth_ref": [
      "r145"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Person serving on board of directors.",
        "label": "Director [Member]"
       }
      }
     },
     "localname": "DirectorMember",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses-details-textual"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_MaximumMember": {
     "auth_ref": [
      "r218",
      "r224",
      "r252",
      "r253",
      "r355",
      "r356",
      "r357",
      "r361",
      "r362",
      "r363",
      "r395",
      "r479",
      "r481",
      "r521",
      "r522"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Upper limit of the provided range.",
        "label": "Maximum [Member]"
       }
      }
     },
     "localname": "MaximumMember",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies-details-textual"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_MinimumMember": {
     "auth_ref": [
      "r218",
      "r224",
      "r252",
      "r253",
      "r355",
      "r356",
      "r357",
      "r361",
      "r362",
      "r363",
      "r395",
      "r479",
      "r481",
      "r521",
      "r522"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Lower limit of the provided range.",
        "label": "Minimum [Member]"
       }
      }
     },
     "localname": "MinimumMember",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies-details-textual"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ProductOrServiceAxis": {
     "auth_ref": [
      "r140",
      "r241",
      "r242",
      "r396",
      "r478",
      "r480"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by product and service, or group of similar products and similar services.",
        "label": "Product and Service [Axis]"
       }
      }
     },
     "localname": "ProductOrServiceAxis",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ProductsAndServicesDomain": {
     "auth_ref": [
      "r140",
      "r241",
      "r242",
      "r396",
      "r478",
      "r480"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Product or service, or a group of similar products or similar services.",
        "label": "Product and Service [Domain]"
       }
      }
     },
     "localname": "ProductsAndServicesDomain",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RangeAxis": {
     "auth_ref": [
      "r218",
      "r224",
      "r243",
      "r252",
      "r253",
      "r355",
      "r356",
      "r357",
      "r361",
      "r362",
      "r363",
      "r395",
      "r479",
      "r481",
      "r521",
      "r522"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by statistical measurement. Includes, but is not limited to, minimum, maximum, weighted average, arithmetic average, and median.",
        "label": "Statistical Measurement [Axis]"
       }
      }
     },
     "localname": "RangeAxis",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies-details-textual"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_RangeMember": {
     "auth_ref": [
      "r218",
      "r224",
      "r243",
      "r252",
      "r253",
      "r355",
      "r356",
      "r357",
      "r361",
      "r362",
      "r363",
      "r395",
      "r479",
      "r481",
      "r521",
      "r522"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Statistical measurement. Includes, but is not limited to, minimum, maximum, weighted average, arithmetic average, and median.",
        "label": "Statistical Measurement [Domain]"
       }
      }
     },
     "localname": "RangeMember",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies-details-textual"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ScheduleOfCondensedCashFlowStatementTableTextBlock": {
     "auth_ref": [
      "r538"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of condensed cash flow statement, including, but not limited to, cash flow statements of consolidated entities and consolidation eliminations.",
        "label": "Condensed Cash Flow Statement [Table Text Block]"
       }
      }
     },
     "localname": "ScheduleOfCondensedCashFlowStatementTableTextBlock",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "srt_TitleOfIndividualAxis": {
     "auth_ref": [
      "r145",
      "r343"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by title of individual or nature of relationship to individual or group of individuals.",
        "label": "Title of Individual [Axis]"
       }
      }
     },
     "localname": "TitleOfIndividualAxis",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_TitleOfIndividualWithRelationshipToEntityDomain": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Title of individual, or nature of relationship to individual or group of individuals.",
        "label": "Title of Individual [Domain]"
       }
      }
     },
     "localname": "TitleOfIndividualWithRelationshipToEntityDomain",
     "nsuri": "http://fasb.org/srt/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccountingPoliciesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Accounting Policies [Abstract]"
       }
      }
     },
     "localname": "AccountingPoliciesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent": {
     "auth_ref": [
      "r407",
      "r444"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 0.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      },
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations.",
        "label": "Accrued expenses and other liabilities (Note 9)",
        "totalLabel": "Accounts Payable and Accrued Liabilities, Total"
       }
      }
     },
     "localname": "AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccountsPayableAndOtherAccruedLiabilities": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details": {
       "order": 0.0,
       "parentTag": "us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of liabilities incurred and payable to vendors for goods and services received, and accrued liabilities classified as other.",
        "label": "Accounts payable and accrued liabilities"
       }
      }
     },
     "localname": "AccountsPayableAndOtherAccruedLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccountsReceivableNet": {
     "auth_ref": [
      "r12",
      "r429",
      "r516"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details": {
       "order": 3.0,
       "parentTag": "us-gaap_PrepaidExpenseAndOtherAssets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.",
        "label": "us-gaap_AccountsReceivableNet",
        "verboseLabel": "Accounts receivable"
       }
      }
     },
     "localname": "AccountsReceivableNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments": {
     "auth_ref": [
      "r70"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 1.0,
       "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": "us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments",
        "negatedLabel": "Amortization of net premiums on investments"
       }
      }
     },
     "localname": "AccretionAmortizationOfDiscountsAndPremiumsInvestments",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccruedInvestmentIncomeReceivable": {
     "auth_ref": [
      "r12",
      "r401",
      "r438"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 4.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Interest, dividends, rents, ancillary and other revenues earned but not yet received by the entity on its investments.",
        "label": "Accrued investment income"
       }
      }
     },
     "localname": "AccruedInvestmentIncomeReceivable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment": {
     "auth_ref": [
      "r22",
      "r196"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.",
        "label": "Amortization"
       }
      }
     },
     "localname": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-property-and-equipment-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": {
     "auth_ref": [
      "r15",
      "r31",
      "r32",
      "r33",
      "r434",
      "r487",
      "r488"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 1.0,
       "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)"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeMember": {
     "auth_ref": [
      "r30",
      "r33",
      "r43",
      "r44",
      "r45",
      "r81",
      "r82",
      "r83",
      "r314",
      "r482",
      "r483",
      "r540"
     ],
     "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]"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdditionalPaidInCapitalCommonStock": {
     "auth_ref": [
      "r13"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 2.0,
       "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"
       }
      }
     },
     "localname": "AdditionalPaidInCapitalCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdditionalPaidInCapitalMember": {
     "auth_ref": [
      "r81",
      "r82",
      "r83",
      "r278",
      "r279",
      "r280",
      "r321"
     ],
     "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]"
       }
      }
     },
     "localname": "AdditionalPaidInCapitalMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Adjustments to reconcile net income to net cash provided by operating activities:"
       }
      }
     },
     "localname": "AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": {
     "auth_ref": [
      "r254",
      "r256",
      "r282",
      "r283"
     ],
     "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": "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue",
        "negatedLabel": "Stock option awards expense"
       }
      }
     },
     "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_Assets": {
     "auth_ref": [
      "r76",
      "r122",
      "r129",
      "r136",
      "r173",
      "r207",
      "r208",
      "r209",
      "r210",
      "r211",
      "r212",
      "r213",
      "r214",
      "r215",
      "r216",
      "r217",
      "r311",
      "r315",
      "r331",
      "r344",
      "r346",
      "r402",
      "r431"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "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": "us-gaap_Assets",
        "totalLabel": "TOTAL ASSETS"
       }
      }
     },
     "localname": "Assets",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "ASSETS"
       }
      }
     },
     "localname": "AssetsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssumedPremiumsWritten": {
     "auth_ref": [
      "r493"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of written premiums assumed from other entities.",
        "label": "us-gaap_AssumedPremiumsWritten",
        "terseLabel": "Assumed Premiums Written"
       }
      }
     },
     "localname": "AssumedPremiumsWritten",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-11-premiums-written-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax": {
     "auth_ref": [
      "r152"
     ],
     "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": "Gross Unrealized Gains"
       }
      }
     },
     "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax": {
     "auth_ref": [
      "r153"
     ],
     "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": "us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax",
        "negatedLabel": "Gross Unrealized Losses"
       }
      }
     },
     "localname": "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis": {
     "auth_ref": [
      "r150",
      "r180"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details": {
       "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).",
        "label": "Fixed maturity investments, amortized cost",
        "totalLabel": "Total, amortized cost"
       }
      }
     },
     "localname": "AvailableForSaleDebtSecuritiesAmortizedCostBasis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-parentheticals",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost": {
     "auth_ref": [
      "r157"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details": {
       "order": 0.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": 1.0
      }
     },
     "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), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Due after five years through ten years, amortized cost"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue": {
     "auth_ref": [
      "r154",
      "r157",
      "r421"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details": {
       "order": 2.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Due after five years through ten years, fair value"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost": {
     "auth_ref": [
      "r156"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details": {
       "order": 3.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": 1.0
      }
     },
     "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), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Due after one year through five years, amortized cost"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue": {
     "auth_ref": [
      "r154",
      "r156",
      "r420"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details": {
       "order": 1.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Due after one year through five years, fair value"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost": {
     "auth_ref": [
      "r158"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details": {
       "order": 1.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": 1.0
      }
     },
     "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), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Due after ten years, amortized cost"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue": {
     "auth_ref": [
      "r154",
      "r158",
      "r422"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details": {
       "order": 0.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Due after ten years, fair value"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost": {
     "auth_ref": [
      "r155"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details": {
       "order": 2.0,
       "parentTag": "us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis",
       "weight": 1.0
      }
     },
     "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), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Due in one year or less, amortized cost"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue": {
     "auth_ref": [
      "r154",
      "r155",
      "r419"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details": {
       "order": 3.0,
       "parentTag": "us-gaap_AvailableForSaleSecuritiesDebtSecurities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "Due in one year or less, fair value"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AvailableForSaleSecuritiesDebtSecurities": {
     "auth_ref": [
      "r147",
      "r151",
      "r180",
      "r405"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 0.0,
       "parentTag": "us-gaap_MarketableSecurities",
       "weight": 1.0
      },
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "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).",
        "label": "Fixed maturity investments, at fair value (amortized cost $0 and $19,761,231)",
        "totalLabel": "Total, fair value"
       }
      }
     },
     "localname": "AvailableForSaleSecuritiesDebtSecurities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AwardTypeAxis": {
     "auth_ref": [
      "r257",
      "r277"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of award under share-based payment arrangement.",
        "label": "Award Type [Axis]"
       }
      }
     },
     "localname": "AwardTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-vested-phantom-shares-details",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-tables"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BalanceSheetLocationAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by location on balance sheet (statement of financial position).",
        "label": "Balance Sheet Location [Axis]"
       }
      }
     },
     "localname": "BalanceSheetLocationAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BalanceSheetLocationDomain": {
     "auth_ref": [
      "r318",
      "r319"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Location in the balance sheet (statement of financial position).",
        "label": "Balance Sheet Location [Domain]"
       }
      }
     },
     "localname": "BalanceSheetLocationDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_BasisOfAccountingPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).",
        "label": "Basis of Accounting, Policy [Policy Text Block]"
       }
      }
     },
     "localname": "BasisOfAccountingPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CarryingReportedAmountFairValueDisclosureMember": {
     "auth_ref": [
      "r329",
      "r330"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Measured as reported on the statement of financial position (balance sheet).",
        "label": "Reported Value Measurement [Member]"
       }
      }
     },
     "localname": "CarryingReportedAmountFairValueDisclosureMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CashAndCashEquivalentsAtCarryingValue": {
     "auth_ref": [
      "r4",
      "r19",
      "r71"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 1.0,
       "parentTag": "us-gaap_Assets",
       "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",
        "terseLabel": "Cash and Cash Equivalents, at Carrying Value, Ending Balance"
       }
      }
     },
     "localname": "CashAndCashEquivalentsAtCarryingValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-",
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashAndCashEquivalentsAxis": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of cash and cash equivalent balance.",
        "label": "Cash and Cash Equivalents [Axis]"
       }
      }
     },
     "localname": "CashAndCashEquivalentsAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets",
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets-details-textual"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CashAndCashEquivalentsPolicyTextBlock": {
     "auth_ref": [
      "r5",
      "r72"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value.",
        "label": "Cash and Cash Equivalents, Policy [Policy Text Block]"
       }
      }
     },
     "localname": "CashAndCashEquivalentsPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations": {
     "auth_ref": [
      "r65",
      "r71",
      "r73"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including, but not limited to, 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": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations",
        "periodEndLabel": "CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF YEAR",
        "periodStartLabel": "CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF YEAR"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect": {
     "auth_ref": [
      "r65",
      "r332"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; excluding 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": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect",
        "totalLabel": "NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CommitmentsAndContingencies": {
     "auth_ref": [
      "r26",
      "r205",
      "r409",
      "r442"
     ],
     "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"
       }
      }
     },
     "localname": "CommitmentsAndContingencies",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": {
     "auth_ref": [
      "r202",
      "r203",
      "r204",
      "r206",
      "r517"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for commitments and contingencies.",
        "label": "Commitments and Contingencies Disclosure [Text Block]"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-16-commitments-and-contingencies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CommonStockHeldBySubsidiary": {
     "auth_ref": [
      "r27"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 4.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Value of entity shares held by subsidiary, which are purchased for the purpose of granting the shares to senior employees as part of an employee stock option plan approved by the Entity's Board of Directors. Presented as a reduction of shareholders' equity at their cost to the subsidiary.",
        "label": "us-gaap_CommonStockHeldBySubsidiary",
        "negatedLabel": "Shares held by Subsidiary (375,861 and 374,141 shares) at cost"
       }
      }
     },
     "localname": "CommonStockHeldBySubsidiary",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CommonStockMember": {
     "auth_ref": [
      "r81",
      "r82",
      "r321"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Stock that is subordinate to all other stock of the issuer.",
        "label": "Common Stock [Member]"
       }
      }
     },
     "localname": "CommonStockMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommonStockParOrStatedValuePerShare": {
     "auth_ref": [
      "r11"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Face amount or stated value per share of common stock.",
        "label": "Common shares, par value (in dollars per share)"
       }
      }
     },
     "localname": "CommonStockParOrStatedValuePerShare",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-parentheticals"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_CommonStockSharesAuthorized": {
     "auth_ref": [
      "r11"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The maximum number of common shares permitted to be issued by an entity's charter and bylaws.",
        "label": "Common shares, shares authorized (in shares)"
       }
      }
     },
     "localname": "CommonStockSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-parentheticals"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesIssued": {
     "auth_ref": [
      "r11"
     ],
     "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 shares, issued (in shares)"
       }
      }
     },
     "localname": "CommonStockSharesIssued",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-parentheticals"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesOutstanding": {
     "auth_ref": [
      "r11",
      "r237"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.",
        "label": "Common shares, outstanding (in shares)"
       }
      }
     },
     "localname": "CommonStockSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-parentheticals"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockValue": {
     "auth_ref": [
      "r11",
      "r346"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 3.0,
       "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 shares, $1 par value, 2021 and 2020: 2,000,000 shares authorized, 995,253 issued and outstanding"
       }
      }
     },
     "localname": "CommonStockValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ComprehensiveIncomeNetOfTax": {
     "auth_ref": [
      "r38",
      "r40",
      "r41",
      "r49",
      "r415",
      "r448"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss": {
       "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": "us-gaap_ComprehensiveIncomeNetOfTax",
        "totalLabel": "COMPREHENSIVE LOSS"
       }
      }
     },
     "localname": "ComprehensiveIncomeNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ComputerEquipmentMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Long lived, depreciable assets that are used in the creation, maintenance and utilization of information systems.",
        "label": "Computer Equipment [Member]"
       }
      }
     },
     "localname": "ComputerEquipmentMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-property-and-equipment-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CorporateDebtSecuritiesMember": {
     "auth_ref": [
      "r244",
      "r251",
      "r495"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debt securities issued by domestic or foreign corporate business, banks and other entities with a promise of repayment.",
        "label": "Corporate Debt Securities [Member]"
       }
      }
     },
     "localname": "CorporateDebtSecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CostOfRevenueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "LOSSES AND EXPENSES"
       }
      }
     },
     "localname": "CostOfRevenueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CostsAndExpenses": {
     "auth_ref": [
      "r54"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations": {
       "order": 0.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Total costs of sales and operating expenses for the period.",
        "label": "us-gaap_CostsAndExpenses",
        "totalLabel": "TOTAL LOSSES AND EXPENSES"
       }
      }
     },
     "localname": "CostsAndExpenses",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger": {
     "auth_ref": [
      "r165",
      "r185",
      "r188"
     ],
     "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), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "label": "12 months or greater, estimated fair value"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss": {
     "auth_ref": [
      "r165",
      "r185"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "label": "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss",
        "negatedLabel": "12 months or greater, unrealized losses"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months": {
     "auth_ref": [
      "r165",
      "r185",
      "r188"
     ],
     "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), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "label": "Less than 12 months, estimated fair value"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss": {
     "auth_ref": [
      "r165",
      "r185"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "label": "us-gaap_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss",
        "negatedLabel": "Less than 12 months, unrealized losses"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition": {
     "auth_ref": [
      "r161",
      "r181",
      "r188"
     ],
     "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), in unrealized loss position without allowance for credit loss.",
        "label": "Total estimated fair value",
        "terseLabel": "Debt Securities, Available-for-sale, Unrealized Loss Position, Total"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPosition",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss": {
     "auth_ref": [
      "r162",
      "r182"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "label": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss",
        "negatedLabel": "Total unrealized losses"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions": {
     "auth_ref": [
      "r163",
      "r183"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "label": "us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions",
        "terseLabel": "Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions"
       }
      }
     },
     "localname": "DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-details-textual"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_DeferredChargesPolicyTextBlock": {
     "auth_ref": [
      "r23"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for deferral and amortization of significant deferred charges.",
        "label": "Deferred Charges, Policy [Policy Text Block]"
       }
      }
     },
     "localname": "DeferredChargesPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DeferredCompensationSharebasedArrangementsLiabilityCurrentAndNoncurrent": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements.",
        "label": "us-gaap_DeferredCompensationSharebasedArrangementsLiabilityCurrentAndNoncurrent",
        "terseLabel": "Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent"
       }
      }
     },
     "localname": "DeferredCompensationSharebasedArrangementsLiabilityCurrentAndNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock": {
     "auth_ref": [
      "r23"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer; the aggregate carrying amount of current assets, not separately presented elsewhere in the balance sheet; and other deferred costs.",
        "label": "Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]"
       }
      }
     },
     "localname": "DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DeferredPolicyAcquisitionCostAmortizationExpense": {
     "auth_ref": [
      "r69",
      "r425",
      "r453",
      "r460",
      "r461",
      "r463",
      "r485"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations": {
       "order": 2.0,
       "parentTag": "us-gaap_CostsAndExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of amortization expense (reversal of expense) for deferred policy acquisition costs.",
        "label": "Policy acquisition costs"
       }
      }
     },
     "localname": "DeferredPolicyAcquisitionCostAmortizationExpense",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredPolicyAcquisitionCosts": {
     "auth_ref": [
      "r440",
      "r461",
      "r462",
      "r463",
      "r485",
      "r497"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 3.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of deferred policy acquisition cost capitalized on contract remaining in force.",
        "label": "Deferred policy acquisition costs"
       }
      }
     },
     "localname": "DeferredPolicyAcquisitionCosts",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsDeferredIncome": {
     "auth_ref": [
      "r297",
      "r298"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-deferred-tax-assets-details": {
       "order": 2.0,
       "parentTag": "us-gaap_DeferredTaxAssetsNet",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income.",
        "label": "Unearned commission income"
       }
      }
     },
     "localname": "DeferredTaxAssetsDeferredIncome",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-deferred-tax-assets-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsGross": {
     "auth_ref": [
      "r293"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 2.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.",
        "label": "Deferred income taxes (Note 6)"
       }
      }
     },
     "localname": "DeferredTaxAssetsGross",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsNet": {
     "auth_ref": [
      "r294"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-deferred-tax-assets-details": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.",
        "label": "us-gaap_DeferredTaxAssetsNet",
        "totalLabel": "Deferred tax assets"
       }
      }
     },
     "localname": "DeferredTaxAssetsNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-deferred-tax-assets-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsOperatingLossCarryforwards": {
     "auth_ref": [
      "r297",
      "r298"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-deferred-tax-assets-details": {
       "order": 1.0,
       "parentTag": "us-gaap_DeferredTaxAssetsNet",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.",
        "label": "Operating loss carryforwards"
       }
      }
     },
     "localname": "DeferredTaxAssetsOperatingLossCarryforwards",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-deferred-tax-assets-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-deferred-tax-assets-details": {
       "order": 0.0,
       "parentTag": "us-gaap_DeferredTaxAssetsNet",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.",
        "label": "Depreciation and amortization"
       }
      }
     },
     "localname": "DeferredTaxAssetsPropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-deferred-tax-assets-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DepreciationDepletionAndAmortization": {
     "auth_ref": [
      "r69",
      "r117"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 13.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.",
        "label": "Depreciation and amortization on property and equipment"
       }
      }
     },
     "localname": "DepreciationDepletionAndAmortization",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": {
     "auth_ref": [
      "r284"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for share-based payment arrangement.",
        "label": "Share-based Payment Arrangement [Text Block]"
       }
      }
     },
     "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DisclosureTextBlockAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "us-gaap_DisclosureTextBlockAbstract",
        "terseLabel": "Notes to Financial Statements"
       }
      }
     },
     "localname": "DisclosureTextBlockAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business",
      "http://www.amerinst.bm/20211231/role/statement-note-10-shareholders-equity",
      "http://www.amerinst.bm/20211231/role/statement-note-11-premiums-written",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation",
      "http://www.amerinst.bm/20211231/role/statement-note-16-commitments-and-contingencies",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies",
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation",
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DividendsDeclaredTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of information related to dividends declared, including paid and unpaid dividends.",
        "label": "Dividends Declared [Table Text Block]"
       }
      }
     },
     "localname": "DividendsDeclaredTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EarningsPerShareAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "NET LOSS PER SHARE"
       }
      }
     },
     "localname": "EarningsPerShareAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareBasic": {
     "auth_ref": [
      "r50",
      "r86",
      "r87",
      "r88",
      "r89",
      "r90",
      "r94",
      "r96",
      "r98",
      "r99",
      "r100",
      "r103",
      "r104",
      "r322",
      "r323",
      "r416",
      "r449"
     ],
     "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": "Basic (in dollars per share)",
        "verboseLabel": "Basic (loss) income per share (in dollars per share)"
       }
      }
     },
     "localname": "EarningsPerShareBasic",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareDiluted": {
     "auth_ref": [
      "r50",
      "r86",
      "r87",
      "r88",
      "r89",
      "r90",
      "r96",
      "r98",
      "r99",
      "r100",
      "r103",
      "r104",
      "r322",
      "r323",
      "r416",
      "r449"
     ],
     "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": "Diluted (in dollars per share)",
        "verboseLabel": "Diluted (loss) income per share (in dollars per share)"
       }
      }
     },
     "localname": "EarningsPerShareDiluted",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerSharePolicyTextBlock": {
     "auth_ref": [
      "r101",
      "r102"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.",
        "label": "Earnings Per Share, Policy [Policy Text Block]"
       }
      }
     },
     "localname": "EarningsPerSharePolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EffectiveIncomeTaxRateContinuingOperations": {
     "auth_ref": [
      "r289"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.",
        "label": "us-gaap_EffectiveIncomeTaxRateContinuingOperations",
        "terseLabel": "Effective Income Tax Rate Reconciliation, Percent, Total"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateContinuingOperations",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-details-textual"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_EmployeeStockOptionMember": {
     "auth_ref": [
      "r276"
     ],
     "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]"
       }
      }
     },
     "localname": "EmployeeStockOptionMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EquityComponentDomain": {
     "auth_ref": [
      "r0",
      "r43",
      "r44",
      "r45",
      "r81",
      "r82",
      "r83",
      "r85",
      "r91",
      "r93",
      "r108",
      "r174",
      "r237",
      "r238",
      "r278",
      "r279",
      "r280",
      "r300",
      "r301",
      "r321",
      "r333",
      "r334",
      "r335",
      "r336",
      "r337",
      "r338",
      "r482",
      "r483",
      "r484",
      "r540"
     ],
     "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]"
       }
      }
     },
     "localname": "EquityComponentDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss": {
     "auth_ref": [
      "r171",
      "r452"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details": {
       "order": 2.0,
       "parentTag": "aigt_NetRealizedAndUnrealizedGainLossOnInvestmentsTotal",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).",
        "label": "Net unrealized (losses) gains on equity investments"
       }
      }
     },
     "localname": "EquitySecuritiesFvNiUnrealizedGainLoss",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EquitySecuritiesMember": {
     "auth_ref": [
      "r6",
      "r9",
      "r167",
      "r430",
      "r510",
      "r511",
      "r512"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Ownership interest or right to acquire or dispose of ownership interest in corporations and other legal entities for which ownership interest is represented by shares of common or preferred stock, convertible securities, stock rights, or stock warrants.",
        "label": "Equity Securities [Member]"
       }
      }
     },
     "localname": "EquitySecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EstimateOfFairValueFairValueDisclosureMember": {
     "auth_ref": [
      "r219",
      "r221",
      "r222",
      "r328"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Measured as an estimate of fair value.",
        "label": "Estimate of Fair Value Measurement [Member]"
       }
      }
     },
     "localname": "EstimateOfFairValueFairValueDisclosureMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueByFairValueHierarchyLevelAxis": {
     "auth_ref": [
      "r219",
      "r221",
      "r222",
      "r244",
      "r245",
      "r246",
      "r247",
      "r248",
      "r249",
      "r250",
      "r251",
      "r325",
      "r351",
      "r352",
      "r353"
     ],
     "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]"
       }
      }
     },
     "localname": "FairValueByFairValueHierarchyLevelAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByMeasurementBasisAxis": {
     "auth_ref": [
      "r219",
      "r221",
      "r222",
      "r324",
      "r326"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by measurement basis.",
        "label": "Measurement Basis [Axis]"
       }
      }
     },
     "localname": "FairValueByMeasurementBasisAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueInputsLevel2Member": {
     "auth_ref": [
      "r219",
      "r221",
      "r222",
      "r244",
      "r245",
      "r250",
      "r251",
      "r325",
      "r352"
     ],
     "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]"
       }
      }
     },
     "localname": "FairValueInputsLevel2Member",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": {
     "auth_ref": [
      "r219",
      "r221",
      "r222",
      "r244",
      "r245",
      "r246",
      "r247",
      "r248",
      "r249",
      "r250",
      "r251",
      "r351",
      "r352",
      "r353"
     ],
     "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]"
       }
      }
     },
     "localname": "FairValueMeasurementsFairValueHierarchyDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FinancialInstrumentAxis": {
     "auth_ref": [
      "r159",
      "r160",
      "r168",
      "r169",
      "r170",
      "r175",
      "r176",
      "r177",
      "r178",
      "r179",
      "r184",
      "r186",
      "r187",
      "r188",
      "r220",
      "r235",
      "r320",
      "r348",
      "r349",
      "r350",
      "r351",
      "r352",
      "r353",
      "r355",
      "r356",
      "r357",
      "r361",
      "r362",
      "r363",
      "r364",
      "r367",
      "r370",
      "r376",
      "r377",
      "r378",
      "r379",
      "r382",
      "r383",
      "r384",
      "r385",
      "r386",
      "r387",
      "r388",
      "r389",
      "r391",
      "r392",
      "r393",
      "r529",
      "r530",
      "r531",
      "r532",
      "r533",
      "r534",
      "r535"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of financial instrument.",
        "label": "Financial Instrument [Axis]"
       }
      }
     },
     "localname": "FinancialInstrumentAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FinancialServiceMember": {
     "auth_ref": [
      "r242"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Financial assistance, including, but not limited to, management and maintenance of depositor account, credit card, merchant discount, trust, investment and insurance.",
        "label": "Financial Service [Member]"
       }
      }
     },
     "localname": "FinancialServiceMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetUsefulLife": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "us-gaap_FiniteLivedIntangibleAssetUsefulLife",
        "terseLabel": "Finite-Lived Intangible Asset, Useful Life (Year)"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetUsefulLife",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies-details-textual"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis": {
     "auth_ref": [
      "r190",
      "r191",
      "r193",
      "r194",
      "r397",
      "r398"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by major type or class of finite-lived intangible assets.",
        "label": "Finite-Lived Intangible Assets by Major Class [Axis]"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsByMajorClassAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies-details-textual"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain": {
     "auth_ref": [
      "r190",
      "r192"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The major class of finite-lived intangible asset (for example, patents, trademarks, copyrights, etc.) A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.",
        "label": "Finite-Lived Intangible Assets, Major Class Name [Domain]"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetsMajorClassNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies-details-textual"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FixedMaturitiesMember": {
     "auth_ref": [
      "r496"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "This element provides types of investments that may be contained within the fixed maturity category which are securities having a stated final repayment date. Examples of items within this category may include bonds, including convertibles and bonds with warrants, and redeemable preferred stocks.",
        "label": "Fixed Maturities [Member]"
       }
      }
     },
     "localname": "FixedMaturitiesMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FundsHeldUnderReinsuranceAgreementsLiability": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of funds held as security for payments to be received under reinsurance contracts.",
        "label": "us-gaap_FundsHeldUnderReinsuranceAgreementsLiability",
        "terseLabel": "Funds Held under Reinsurance Agreements, Liability"
       }
      }
     },
     "localname": "FundsHeldUnderReinsuranceAgreementsLiability",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FurnitureAndFixturesMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases.",
        "label": "Furniture and Fixtures [Member]"
       }
      }
     },
     "localname": "FurnitureAndFixturesMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-property-and-equipment-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_GainOnSaleOfInvestments": {
     "auth_ref": [
      "r52",
      "r53",
      "r69",
      "r412",
      "r450"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details": {
       "order": 0.0,
       "parentTag": "aigt_NetRealizedAndUnrealizedGainLossOnInvestmentsTotal",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The difference between the carrying value and the sale price of an investment.  A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment.  This element refers to the Gain included in earnings and not to the cash proceeds of the sale.",
        "label": "Gross gains on sales"
       }
      }
     },
     "localname": "GainOnSaleOfInvestments",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest": {
     "auth_ref": [
      "r47",
      "r122",
      "r128",
      "r132",
      "r135",
      "r138",
      "r399",
      "r413",
      "r417",
      "r454"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations": {
       "order": 0.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.",
        "label": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
        "totalLabel": "LOSS BEFORE TAX"
       }
      }
     },
     "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeStatementAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Income Statement [Abstract]"
       }
      }
     },
     "localname": "IncomeStatementAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeTaxDisclosureTextBlock": {
     "auth_ref": [
      "r77",
      "r290",
      "r291",
      "r296",
      "r302",
      "r304",
      "r306",
      "r307",
      "r308"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.",
        "label": "Income Tax Disclosure [Text Block]"
       }
      }
     },
     "localname": "IncomeTaxDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_IncomeTaxExpenseBenefit": {
     "auth_ref": [
      "r78",
      "r92",
      "r93",
      "r120",
      "r288",
      "r303",
      "r305",
      "r455"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations": {
       "order": 1.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": -1.0
      },
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.",
        "label": "Tax expense (Note 6)",
        "totalLabel": "Net tax expense"
       }
      }
     },
     "localname": "IncomeTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxPolicyTextBlock": {
     "auth_ref": [
      "r42",
      "r286",
      "r287",
      "r291",
      "r292",
      "r295",
      "r299"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.",
        "label": "Income Tax, Policy [Policy Text Block]"
       }
      }
     },
     "localname": "IncomeTaxPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance": {
     "auth_ref": [
      "r289"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details": {
       "order": 1.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.",
        "label": "Change in valuation allowance"
       }
      }
     },
     "localname": "IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate": {
     "auth_ref": [
      "r285",
      "r289"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details": {
       "order": 0.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.",
        "label": "Deferred tax expense from enacted rate reductions"
       }
      }
     },
     "localname": "IncomeTaxReconciliationChangeInEnactedTaxRate",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential": {
     "auth_ref": [
      "r289"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details": {
       "order": 2.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit).",
        "label": "Foreign taxes at local expected rates"
       }
      }
     },
     "localname": "IncomeTaxReconciliationForeignIncomeTaxRateDifferential",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate": {
     "auth_ref": [
      "r289"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details": {
       "order": 4.0,
       "parentTag": "us-gaap_IncomeTaxExpenseBenefit",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.",
        "label": "Expected tax"
       }
      }
     },
     "localname": "IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities": {
     "auth_ref": [
      "r68"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in obligations incurred but not paid, and operating obligations classified as other.",
        "label": "Accrued expenses and other liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccountsPayableAndOtherOperatingLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInAccruedInvestmentIncomeReceivable": {
     "auth_ref": [
      "r68"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 10.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in investment income that has been earned but not yet received in cash.",
        "label": "us-gaap_IncreaseDecreaseInAccruedInvestmentIncomeReceivable",
        "negatedLabel": "Accrued investment income"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccruedInvestmentIncomeReceivable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInDeferredIncomeTaxes": {
     "auth_ref": [
      "r68"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 7.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the account that represents the temporary difference that results from Income or Loss that is recognized for accounting purposes but not for tax purposes and vice versa.",
        "label": "us-gaap_IncreaseDecreaseInDeferredIncomeTaxes",
        "negatedLabel": "Deferred income taxes"
       }
      }
     },
     "localname": "IncreaseDecreaseInDeferredIncomeTaxes",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInDeferredPolicyAcquisitionCosts": {
     "auth_ref": [
      "r68"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 8.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the balance sheet value of capitalized sales costs that are associated with acquiring a new insurance customers.",
        "label": "us-gaap_IncreaseDecreaseInDeferredPolicyAcquisitionCosts",
        "negatedLabel": "Deferred policy acquisition costs"
       }
      }
     },
     "localname": "IncreaseDecreaseInDeferredPolicyAcquisitionCosts",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve": {
     "auth_ref": [
      "r68"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 6.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) in liability to reflect the estimated ultimate cost of settling claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date.",
        "label": "Liability for losses and loss adjustment expenses"
       }
      }
     },
     "localname": "IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInOperatingCapitalAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Changes in assets and liabilities:"
       }
      }
     },
     "localname": "IncreaseDecreaseInOperatingCapitalAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets": {
     "auth_ref": [
      "r68"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 5.0,
       "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": "us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets",
        "negatedLabel": "Prepaid expenses and other assets"
       }
      }
     },
     "localname": "IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInReinsurancePayables": {
     "auth_ref": [
      "r68"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the amount due to other insurance companies when the reporting entity has assumed a portion of the cedant's insurance risk which has resulted in insurance losses.",
        "label": "Assumed reinsurance payable"
       }
      }
     },
     "localname": "IncreaseDecreaseInReinsurancePayables",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInReinsuranceRecoverable": {
     "auth_ref": [
      "r68"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 9.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the amount of benefits the ceding insurer expects to recover on insurance policies ceded to other insurance entities as of the balance sheet date for all guaranteed benefit types.",
        "label": "us-gaap_IncreaseDecreaseInReinsuranceRecoverable",
        "negatedLabel": "Assumed reinsurance premiums receivable"
       }
      }
     },
     "localname": "IncreaseDecreaseInReinsuranceRecoverable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInUnearnedPremiums": {
     "auth_ref": [
      "r68"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of increase (decrease) unearned premiums written. Excludes portion of unearned premiums amortized into income.",
        "label": "Unearned premiums"
       }
      }
     },
     "localname": "IncreaseDecreaseInUnearnedPremiums",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestIncomeDebtSecuritiesAvailableForSaleOperating": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details": {
       "order": 0.0,
       "parentTag": "us-gaap_NetInvestmentIncome",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of interest income, amortization of premium and accretion of discount on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale); classified as operating.",
        "label": "Fixed maturity investments"
       }
      }
     },
     "localname": "InterestIncomeDebtSecuritiesAvailableForSaleOperating",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InvestmentIncomeInterest": {
     "auth_ref": [
      "r57",
      "r115"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details": {
       "order": 1.0,
       "parentTag": "us-gaap_NetInvestmentIncome",
       "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": "Short term investments and cash and cash equivalents"
       }
      }
     },
     "localname": "InvestmentIncomeInterest",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InvestmentIncomeInvestmentExpense": {
     "auth_ref": [
      "r59",
      "r456"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details": {
       "order": 3.0,
       "parentTag": "us-gaap_NetInvestmentIncome",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of expenses related to the generation of investment income.",
        "label": "us-gaap_InvestmentIncomeInvestmentExpense",
        "negatedLabel": "Investment expenses"
       }
      }
     },
     "localname": "InvestmentIncomeInvestmentExpense",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InvestmentIncomeNet": {
     "auth_ref": [
      "r56",
      "r58"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.",
        "label": "Net investment income"
       }
      }
     },
     "localname": "InvestmentIncomeNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InvestmentPolicyTextBlock": {
     "auth_ref": [
      "r172",
      "r451"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for investment in financial asset.",
        "label": "Investment, Policy [Policy Text Block]"
       }
      }
     },
     "localname": "InvestmentPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_InvestmentTypeAxis": {
     "auth_ref": [
      "r498",
      "r499",
      "r500",
      "r501",
      "r502",
      "r503",
      "r504",
      "r505",
      "r506",
      "r507",
      "r508",
      "r509",
      "r510",
      "r511",
      "r512"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of investments.",
        "label": "Investment Type [Axis]"
       }
      }
     },
     "localname": "InvestmentTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_InvestmentTypeCategorizationMember": {
     "auth_ref": [
      "r498",
      "r499",
      "r500",
      "r501",
      "r502",
      "r503",
      "r504",
      "r505",
      "r506",
      "r507",
      "r508",
      "r509",
      "r510",
      "r511",
      "r512"
     ],
     "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/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.",
        "label": "Investments Classified by Contractual Maturity Date [Table Text Block]"
       }
      }
     },
     "localname": "InvestmentsClassifiedByContractualMaturityDateTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock": {
     "auth_ref": [
      "r167",
      "r400",
      "r423",
      "r513",
      "r536"
     ],
     "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]"
       }
      }
     },
     "localname": "InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": {
     "auth_ref": [
      "r342"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths",
        "terseLabel": "Lessee, Operating Lease, Liability, to be Paid, Year One"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-16-commitments-and-contingencies-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": {
     "auth_ref": [
      "r342"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "label": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo",
        "terseLabel": "Lessee, Operating Lease, Liability, to be Paid, Year Two"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-16-commitments-and-contingencies-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_Liabilities": {
     "auth_ref": [
      "r24",
      "r76",
      "r130",
      "r173",
      "r207",
      "r208",
      "r209",
      "r211",
      "r212",
      "r213",
      "r214",
      "r215",
      "r216",
      "r217",
      "r312",
      "r315",
      "r316",
      "r331",
      "r344",
      "r345"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "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": "us-gaap_Liabilities",
        "totalLabel": "TOTAL LIABILITIES"
       }
      }
     },
     "localname": "Liabilities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "LIABILITIES"
       }
      }
     },
     "localname": "LiabilitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquity": {
     "auth_ref": [
      "r18",
      "r76",
      "r173",
      "r331",
      "r346",
      "r404",
      "r437"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "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": "us-gaap_LiabilitiesAndStockholdersEquity",
        "totalLabel": "TOTAL LIABILITIES AND SHAREHOLDERS\u2019 EQUITY"
       }
      }
     },
     "localname": "LiabilitiesAndStockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense": {
     "auth_ref": [
      "r466",
      "r469"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-unpaid-losses-and-loss-adjustment-expenses-details": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount needed to reflect the estimated ultimate cost of settling claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date.",
        "label": "us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense",
        "totalLabel": "Totals"
       }
      }
     },
     "localname": "LiabilityForClaimsAndClaimsAdjustmentExpense",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-unpaid-losses-and-loss-adjustment-expenses-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock": {
     "auth_ref": [
      "r490"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for liabilities related to future policy benefits and unpaid claims and claim adjustments.",
        "label": "Liability for Future Policy Benefits and Unpaid Claims Disclosure [Text Block]"
       }
      }
     },
     "localname": "LiabilityForFuturePolicyBenefitsAndUnpaidClaimsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Paid related to:"
       }
      }
     },
     "localname": "LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1": {
     "auth_ref": [
      "r468"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details": {
       "order": 0.0,
       "parentTag": "us-gaap_PaymentsForLossesAndLossAdjustmentExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after effects of reinsurance, of payments to settle claims incurred in the current period and related claims settlement costs.",
        "label": "us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1",
        "negatedTerseLabel": "Current year"
       }
      }
     },
     "localname": "LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1": {
     "auth_ref": [
      "r468"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details": {
       "order": 1.0,
       "parentTag": "us-gaap_PaymentsForLossesAndLossAdjustmentExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after effects of reinsurance, of payments to settle claims incurred in prior periods and related claims settlement costs.",
        "label": "us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1",
        "negatedTerseLabel": "Prior years"
       }
      }
     },
     "localname": "LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaimsAmount": {
     "auth_ref": [
      "r489"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-unpaid-losses-and-loss-adjustment-expenses-details": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Estimated costs as of the balance sheet date of settling insured claims and costs incurred in the claims settlement process for claims that have not yet been submitted to the insurance company for reimbursement.",
        "label": "us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaimsAmount",
        "terseLabel": "IBNR reserves"
       }
      }
     },
     "localname": "LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaimsAmount",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-unpaid-losses-and-loss-adjustment-expenses-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1": {
     "auth_ref": [
      "r467"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred and costs incurred in the claim settlement process.",
        "label": "us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1",
        "totalLabel": "Total incurred"
       }
      }
     },
     "localname": "LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Incurred related to:"
       }
      }
     },
     "localname": "LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaimsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet": {
     "auth_ref": [
      "r428",
      "r466",
      "r469"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 3.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Liability as of the balance sheet date for amounts representing estimated cost of settling unpaid claims under the terms of the underlying insurance policies, less estimated reinsurance recoveries on such claims. This includes an estimate for claims which have been incurred but not reported. Claim adjustment expenses represent the costs estimated to be incurred in the settlement of unpaid claims.",
        "label": "Unpaid losses and loss adjustment expenses (Note 8)",
        "periodEndLabel": "Liability\u2014end of year",
        "periodStartLabel": "Liability\u2014beginning of year"
       }
      }
     },
     "localname": "LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedClaimsAmount": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-unpaid-losses-and-loss-adjustment-expenses-details": {
       "order": 0.0,
       "parentTag": "us-gaap_LiabilityForClaimsAndClaimsAdjustmentExpense",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Costs of settling insured claims and costs incurred in the claims settlement process for the specified year specifically for claims that have already been submitted to the insurance company for reimbursement.",
        "label": "us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedClaimsAmount",
        "terseLabel": "Case basis estimates"
       }
      }
     },
     "localname": "LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedClaimsAmount",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-unpaid-losses-and-loss-adjustment-expenses-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilityReserveEstimatePolicy": {
     "auth_ref": [
      "r490"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for estimating its liability as of the balance sheet date for the ultimate cost of settling reported and unreported claims incurred and claims adjustment expenses (including effects of inflation and other societal and economic factors).",
        "label": "Liability Reserve Estimate, Policy [Policy Text Block]"
       }
      }
     },
     "localname": "LiabilityReserveEstimatePolicy",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LossOnSaleOfInvestments": {
     "auth_ref": [
      "r52",
      "r53",
      "r69",
      "r412",
      "r450"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details": {
       "order": 1.0,
       "parentTag": "aigt_NetRealizedAndUnrealizedGainLossOnInvestmentsTotal",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The difference between the carrying value and the sale price of an investment.  A loss would be recognized when the sale price of the investment is less than the carrying value of the investment. This element refers to the Loss included in earnings and not to the cash proceeds of the sale.",
        "label": "us-gaap_LossOnSaleOfInvestments",
        "negatedLabel": "Gross losses on sales"
       }
      }
     },
     "localname": "LossOnSaleOfInvestments",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_MarketableSecurities": {
     "auth_ref": [
      "r410"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 8.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of investment in marketable security.",
        "label": "Total Investments",
        "totalLabel": "TOTAL INVESTMENTS"
       }
      }
     },
     "localname": "MarketableSecurities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivities": {
     "auth_ref": [
      "r65"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 0.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect",
       "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": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
        "totalLabel": "Net cash used in financing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "CASH FLOWS FROM FINANCING ACTIVITIES"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivities": {
     "auth_ref": [
      "r65"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 2.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect",
       "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": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
        "totalLabel": "Net cash provided by investing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "CASH FLOWS FROM INVESTING ACTIVITIES"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivities": {
     "auth_ref": [
      "r65",
      "r67",
      "r70"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 1.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect",
       "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": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
        "totalLabel": "Net cash used in operating activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "CASH FLOWS FROM OPERATING ACTIVITIES"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetIncomeLoss": {
     "auth_ref": [
      "r2",
      "r36",
      "r39",
      "r45",
      "r48",
      "r70",
      "r76",
      "r84",
      "r86",
      "r87",
      "r88",
      "r89",
      "r92",
      "r93",
      "r97",
      "r122",
      "r128",
      "r132",
      "r135",
      "r138",
      "r173",
      "r207",
      "r208",
      "r209",
      "r211",
      "r212",
      "r213",
      "r214",
      "r215",
      "r216",
      "r217",
      "r323",
      "r331",
      "r414",
      "r446"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 0.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss": {
       "order": 0.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": 1.0
      },
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.",
        "label": "Net loss",
        "terseLabel": "Segment loss",
        "totalLabel": "NET LOSS AFTER TAX",
        "verboseLabel": "NET LOSS AFTER TAX"
       }
      }
     },
     "localname": "NetIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-segment-reporting-information-details",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetInvestmentIncome": {
     "auth_ref": [
      "r447"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations": {
       "order": 0.0,
       "parentTag": "us-gaap_Revenues",
       "weight": 1.0
      },
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.",
        "label": "Net investment income (Note 4)",
        "totalLabel": "Net investment income"
       }
      }
     },
     "localname": "NetInvestmentIncome",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.",
        "label": "New Accounting Pronouncements, Policy [Policy Text Block]"
       }
      }
     },
     "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_NumberOfReportableSegments": {
     "auth_ref": [
      "r110"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.",
        "label": "us-gaap_NumberOfReportableSegments",
        "terseLabel": "Number of Reportable Segments"
       }
      }
     },
     "localname": "NumberOfReportableSegments",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-details-textual"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_OfficeEquipmentMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tangible personal property used in an office setting. Examples include, but are not limited to, computers, copiers and fax machine.",
        "label": "Office Equipment [Member]"
       }
      }
     },
     "localname": "OfficeEquipmentMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-property-and-equipment-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OperatingCostsAndExpenses": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations": {
       "order": 0.0,
       "parentTag": "us-gaap_CostsAndExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense.",
        "label": "Operating and management expenses (Note 12)"
       }
      }
     },
     "localname": "OperatingCostsAndExpenses",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiability": {
     "auth_ref": [
      "r341"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details": {
       "order": 3.0,
       "parentTag": "us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease.",
        "label": "Building lease liability"
       }
      }
     },
     "localname": "OperatingLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseRightOfUseAsset": {
     "auth_ref": [
      "r340"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details": {
       "order": 1.0,
       "parentTag": "us-gaap_PrepaidExpenseAndOtherAssets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of lessee's right to use underlying asset under operating lease.",
        "label": "us-gaap_OperatingLeaseRightOfUseAsset",
        "verboseLabel": "Building right of use asset"
       }
      }
     },
     "localname": "OperatingLeaseRightOfUseAsset",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock": {
     "auth_ref": [
      "r3",
      "r317"
     ],
     "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]"
       }
      }
     },
     "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_OtherAssetsDisclosureTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for other assets. This disclosure includes other current assets and other noncurrent assets.",
        "label": "Other Assets Disclosure [Text Block]"
       }
      }
     },
     "localname": "OtherAssetsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent": {
     "auth_ref": [
      "r37",
      "r40",
      "r309",
      "r310",
      "r313"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss": {
       "order": 1.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after tax of other comprehensive income (loss) attributable to parent entity.",
        "label": "Unrealized gain (loss) on securities, net of reclassification adjustment",
        "totalLabel": "TOTAL OTHER COMPREHENSIVE (LOSS) INCOME"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax": {
     "auth_ref": [
      "r31",
      "r34",
      "r35",
      "r166"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.",
        "label": "us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax",
        "negatedLabel": "Reclassification adjustment for gains included in net income"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax": {
     "auth_ref": [
      "r29",
      "r31"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss": {
       "order": 0.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
       "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": "Net unrealized holding gains arising during the period"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherGeneralAndAdministrativeExpense": {
     "auth_ref": [
      "r55"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of general and administrative expense classified as other.",
        "label": "us-gaap_OtherGeneralAndAdministrativeExpense",
        "terseLabel": "Other General and Administrative Expense"
       }
      }
     },
     "localname": "OtherGeneralAndAdministrativeExpense",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherLiabilities": {
     "auth_ref": [
      "r408"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details": {
       "order": 4.0,
       "parentTag": "us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of liabilities classified as other.",
        "label": "Other liabilities"
       }
      }
     },
     "localname": "OtherLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherLiabilitiesDisclosureTextBlock": {
     "auth_ref": [
      "r25"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for other liabilities.",
        "label": "Other Liabilities Disclosure [Text Block]"
       }
      }
     },
     "localname": "OtherLiabilitiesDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_OtherLiabilitiesTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of other liabilities.",
        "label": "Other Liabilities [Table Text Block]"
       }
      }
     },
     "localname": "OtherLiabilitiesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale": {
     "auth_ref": [
      "r149"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of other-than-temporary impairment (OTTI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), recognized in earnings and other comprehensive loss (OCI).",
        "label": "us-gaap_OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale",
        "terseLabel": "Other-than-temporary Impairment Loss, Debt Securities, Available-for-sale, Total"
       }
      }
     },
     "localname": "OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsForLossesAndLossAdjustmentExpense": {
     "auth_ref": [
      "r66",
      "r468"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after effects of reinsurance, of payments to settle insured claims and pay costs incurred in the claims settlement process.",
        "label": "us-gaap_PaymentsForLossesAndLossAdjustmentExpense",
        "negatedTotalLabel": "Total paid"
       }
      }
     },
     "localname": "PaymentsForLossesAndLossAdjustmentExpense",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsForReinsurance": {
     "auth_ref": [
      "r66"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cash payments made for reinsurance during the current period.",
        "label": "us-gaap_PaymentsForReinsurance",
        "terseLabel": "Payments for Reinsurance"
       }
      }
     },
     "localname": "PaymentsForReinsurance",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsForRepurchaseOfCommonStock": {
     "auth_ref": [
      "r64"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 0.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cash outflow to reacquire common stock during the period.",
        "label": "us-gaap_PaymentsForRepurchaseOfCommonStock",
        "negatedLabel": "Purchase of shares by subsidiary, net"
       }
      }
     },
     "localname": "PaymentsForRepurchaseOfCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt": {
     "auth_ref": [
      "r60",
      "r62",
      "r148"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt",
        "negatedLabel": "Purchases of available-for-sale securities"
       }
      }
     },
     "localname": "PaymentsToAcquireAvailableForSaleSecuritiesDebt",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": {
     "auth_ref": [
      "r63"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "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": "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment",
        "negatedLabel": "Purchases of property and equipment"
       }
      }
     },
     "localname": "PaymentsToAcquirePropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PhantomShareUnitsPSUsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Share-based payment arrangement awarded as phantom share or unit.",
        "label": "Phantom Share Units (PSUs) [Member]"
       }
      }
     },
     "localname": "PhantomShareUnitsPSUsMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-vested-phantom-shares-details",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-tables"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PolicyTextBlockAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "us-gaap_PolicyTextBlockAbstract",
        "terseLabel": "Accounting Policies"
       }
      }
     },
     "localname": "PolicyTextBlockAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PolicyholderBenefitsAndClaimsIncurredNet": {
     "auth_ref": [
      "r426",
      "r458"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations": {
       "order": 1.0,
       "parentTag": "us-gaap_CostsAndExpenses",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after effects of policies assumed or ceded, of expense related to the provision for policy benefits and costs incurred.",
        "label": "Losses and loss adjustment expenses (Note 8)"
       }
      }
     },
     "localname": "PolicyholderBenefitsAndClaimsIncurredNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PortionAtFairValueFairValueDisclosureMember": {
     "auth_ref": [
      "r327"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Measured at fair value for financial reporting purposes.",
        "label": "Portion at Fair Value Measurement [Member] [Default]"
       }
      }
     },
     "localname": "PortionAtFairValueFairValueDisclosureMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PremiumsEarnedNet": {
     "auth_ref": [
      "r411",
      "r445",
      "r459",
      "r494"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations": {
       "order": 2.0,
       "parentTag": "us-gaap_Revenues",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned.",
        "label": "Net premiums earned (Note 11)"
       }
      }
     },
     "localname": "PremiumsEarnedNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PremiumsReceivableBasisOfAccountingPolicy": {
     "auth_ref": [
      "r465"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for determining the gross carrying amount of premiums due from policyholders, insureds, and other insurance entities.",
        "label": "Premiums Receivable, Basis of Accounting, Policy [Policy Text Block]"
       }
      }
     },
     "localname": "PremiumsReceivableBasisOfAccountingPolicy",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PrepaidExpenseAndOtherAssets": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 0.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      },
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "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.",
        "label": "Prepaid expenses and other assets (Note 7)",
        "totalLabel": "Prepaid Expense and Other Assets"
       }
      }
     },
     "localname": "PrepaidExpenseAndOtherAssets",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-",
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PrepaidExpenseCurrentAndNoncurrent": {
     "auth_ref": [
      "r406",
      "r443"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details": {
       "order": 0.0,
       "parentTag": "us-gaap_PrepaidExpenseAndOtherAssets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying amount as of the balance sheet date of expenditures made in advance of when the economic benefit of the cost will be realized, and which will be expensed in future periods with the passage of time or when a triggering event occurs.",
        "label": "us-gaap_PrepaidExpenseCurrentAndNoncurrent",
        "verboseLabel": "Prepaid expenses"
       }
      }
     },
     "localname": "PrepaidExpenseCurrentAndNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities": {
     "auth_ref": [
      "r60",
      "r61",
      "r148"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Proceeds from maturities of fixed maturity investments"
       }
      }
     },
     "localname": "ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt": {
     "auth_ref": [
      "r60",
      "r61",
      "r148"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "label": "Proceeds from sales of available-for-sale securities",
        "terseLabel": "Total proceeds on sales of available-for-sale securities"
       }
      }
     },
     "localname": "ProceedsFromSaleOfAvailableForSaleSecuritiesDebt",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentByTypeAxis": {
     "auth_ref": [
      "r22",
      "r197"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by type of long-lived, physical assets used to produce goods and services and not intended for resale.",
        "label": "Long-Lived Tangible Asset [Axis]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentByTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-property-and-equipment-details"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock": {
     "auth_ref": [
      "r199",
      "r518",
      "r519",
      "r520"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections.",
        "label": "Property, Plant and Equipment Disclosure [Text Block]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentGross": {
     "auth_ref": [
      "r21",
      "r195"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.",
        "label": "Cost"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentGross",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-property-and-equipment-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentNet": {
     "auth_ref": [
      "r7",
      "r8",
      "r197",
      "r346",
      "r424",
      "r441"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 5.0,
       "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 and equipment (Note 5)",
        "terseLabel": "Property, Plant and Equipment, Net, Ending Balance"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-segment-reporting-information-details",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-property-and-equipment-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentPolicyTextBlock": {
     "auth_ref": [
      "r20",
      "r197",
      "r518",
      "r519"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Disclosure of accounting policy for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections.",
        "label": "Property, Plant and Equipment, Policy [Policy Text Block]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentTextBlock": {
     "auth_ref": [
      "r7",
      "r197"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.",
        "label": "Property, Plant and Equipment [Table Text Block]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentTypeDomain": {
     "auth_ref": [
      "r7",
      "r195"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Listing of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.",
        "label": "Long-Lived Tangible Asset [Domain]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-property-and-equipment-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentUsefulLife": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.",
        "label": "us-gaap_PropertyPlantAndEquipmentUsefulLife",
        "terseLabel": "Property, Plant and Equipment, Useful Life (Year)"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentUsefulLife",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies-details-textual"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_QuarterlyFinancialInformationTextBlock": {
     "auth_ref": [
      "r106",
      "r107"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information.",
        "label": "Quarterly Financial Information [Text Block]"
       }
      }
     },
     "localname": "QuarterlyFinancialInformationTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RealizedGainLossOnInvestmentsTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of realized gains and losses on investments reported in the statement of income.",
        "label": "Realized Gain (Loss) on Investments [Table Text Block]"
       }
      }
     },
     "localname": "RealizedGainLossOnInvestmentsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RealizedInvestmentGainsLosses": {
     "auth_ref": [
      "r457"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of realized gain (loss) on investment.",
        "label": "Net realized and unrealized (loss) gain"
       }
      }
     },
     "localname": "RealizedInvestmentGainsLosses",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ReinsurancePayable": {
     "auth_ref": [],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 2.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The carrying amount as of the balance sheet date of the known and estimated amounts owed to insurers under reinsurance treaties or other arrangements.",
        "label": "us-gaap_ReinsurancePayable",
        "terseLabel": "Assumed reinsurance payable"
       }
      }
     },
     "localname": "ReinsurancePayable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ReinsuranceRecoverables": {
     "auth_ref": [
      "r427",
      "r439",
      "r464"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 7.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after valuation allowance, recoverable under reinsurance contracts including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.",
        "label": "Assumed reinsurance premiums receivable"
       }
      }
     },
     "localname": "ReinsuranceRecoverables",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Type of cash and cash equivalent. Cash is 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 [Domain]"
       }
      }
     },
     "localname": "RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets",
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets-details-textual"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RestrictedCashAndInvestments": {
     "auth_ref": [
      "r514",
      "r515"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 6.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cash and investments whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet.",
        "label": "Restricted cash and cash equivalents"
       }
      }
     },
     "localname": "RestrictedCashAndInvestments",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestrictionsOnDividendsLoansAndAdvancesTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for a banking or savings institution's compliance during the year with (a) federal and state laws and regulations relative to dividend restrictions and (b) federal laws and regulations relative to insider loans.",
        "label": "Restrictions on Dividends, Loans and Advances [Text Block]"
       }
      }
     },
     "localname": "RestrictionsOnDividendsLoansAndAdvancesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RetainedEarningsAccumulatedDeficit": {
     "auth_ref": [
      "r14",
      "r238",
      "r281",
      "r346",
      "r435",
      "r486",
      "r488"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 0.0,
       "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"
       }
      }
     },
     "localname": "RetainedEarningsAccumulatedDeficit",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RetainedEarningsMember": {
     "auth_ref": [
      "r0",
      "r81",
      "r82",
      "r83",
      "r85",
      "r91",
      "r93",
      "r174",
      "r278",
      "r279",
      "r280",
      "r300",
      "r301",
      "r321",
      "r482",
      "r484"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
        "label": "Retained Earnings [Member]"
       }
      }
     },
     "localname": "RetainedEarningsMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax": {
     "auth_ref": [
      "r113",
      "r114",
      "r127",
      "r133",
      "r134",
      "r140",
      "r141",
      "r143",
      "r240",
      "r241",
      "r396"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations": {
       "order": 3.0,
       "parentTag": "us-gaap_Revenues",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.",
        "label": "Commission income"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerIncludingAssessedTax",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_Revenues": {
     "auth_ref": [
      "r46",
      "r76",
      "r113",
      "r114",
      "r127",
      "r133",
      "r134",
      "r140",
      "r141",
      "r143",
      "r173",
      "r207",
      "r208",
      "r209",
      "r211",
      "r212",
      "r213",
      "r214",
      "r215",
      "r216",
      "r217",
      "r331",
      "r417"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations": {
       "order": 1.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).",
        "label": "Total revenues",
        "terseLabel": "Revenues",
        "totalLabel": "TOTAL REVENUES"
       }
      }
     },
     "localname": "Revenues",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-segment-reporting-information-details",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RevenuesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "REVENUES"
       }
      }
     },
     "localname": "RevenuesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SalariesAndWages": {
     "auth_ref": [
      "r51"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of expense for salary and wage arising from service rendered by nonofficer employee. Excludes allocated cost, labor-related nonsalary expense, and direct and overhead labor cost included in cost of good and service sold.",
        "label": "us-gaap_SalariesAndWages",
        "terseLabel": "Salary and Wage, NonOfficer, Excluding Cost of Good and Service Sold"
       }
      }
     },
     "localname": "SalariesAndWages",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.",
        "label": "Schedule of Available-for-sale Securities Reconciliation [Table Text Block]"
       }
      }
     },
     "localname": "ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock": {
     "auth_ref": [
      "r294"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.",
        "label": "Schedule of Deferred Tax Assets and Liabilities [Table Text Block]"
       }
      }
     },
     "localname": "ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock": {
     "auth_ref": [
      "r289"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.",
        "label": "Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]"
       }
      }
     },
     "localname": "ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock": {
     "auth_ref": [
      "r324",
      "r325"
     ],
     "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]"
       }
      }
     },
     "localname": "ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense": {
     "auth_ref": [
      "r470"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the activity in the reserve for settling insured claims and expenses incurred in the claims settlement process for the period. The estimated liability includes the amount of money that will be required for future payments of (a) claims that have been reported to the insurer, (b) claims related to insured events that have occurred but that have not been reported to the insurer as of the date the liability is estimated, and (c) claim adjustment expenses. Claim adjustment expenses include costs incurred in the claim settlement process such as legal fees; outside adjuster fees; and costs to record, process, and adjust claims.",
        "label": "Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]"
       }
      }
     },
     "localname": "ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfOtherShareBasedCompensationActivityTableTextBlock": {
     "auth_ref": [
      "r266"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of activity for outstanding award under share-based payment arrangement excluding share and unit options and nonvested award.",
        "label": "Share-based Payment Arrangement, Outstanding Award, Activity, Excluding Option [Table Text Block]"
       }
      }
     },
     "localname": "ScheduleOfOtherShareBasedCompensationActivityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock": {
     "auth_ref": [
      "r105"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data.",
        "label": "Quarterly Financial Information [Table Text Block]"
       }
      }
     },
     "localname": "ScheduleOfQuarterlyFinancialInformationTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock": {
     "auth_ref": [
      "r122",
      "r125",
      "r131",
      "r189"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.",
        "label": "Schedule of Segment Reporting Information, by Segment [Table Text Block]"
       }
      }
     },
     "localname": "ScheduleOfSegmentReportingInformationBySegmentTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock": {
     "auth_ref": [
      "r277"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.",
        "label": "Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]"
       }
      }
     },
     "localname": "ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock": {
     "auth_ref": [
      "r260",
      "r270",
      "r272"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.",
        "label": "Share-based Payment Arrangement, Option, Activity [Table Text Block]"
       }
      }
     },
     "localname": "ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock": {
     "auth_ref": [
      "r164"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value).",
        "label": "Schedule of Unrealized Loss on Investments [Table Text Block]"
       }
      }
     },
     "localname": "ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SecuredDebt": {
     "auth_ref": [
      "r10",
      "r403",
      "r433"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.",
        "label": "us-gaap_SecuredDebt",
        "terseLabel": "Secured Debt, Total"
       }
      }
     },
     "localname": "SecuredDebt",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SegmentDomain": {
     "auth_ref": [
      "r109",
      "r113",
      "r114",
      "r115",
      "r116",
      "r117",
      "r118",
      "r119",
      "r120",
      "r121",
      "r122",
      "r123",
      "r124",
      "r127",
      "r128",
      "r129",
      "r130",
      "r132",
      "r133",
      "r134",
      "r135",
      "r136",
      "r138",
      "r143",
      "r200",
      "r201",
      "r478"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Components of an entity that engage in business activities from which they may earn revenue and incur expenses, including transactions with other components of the same entity.",
        "label": "Segments [Domain]"
       }
      }
     },
     "localname": "SegmentDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-segment-reporting-information-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SegmentReportingDisclosureTextBlock": {
     "auth_ref": [
      "r109",
      "r111",
      "r112",
      "r122",
      "r126",
      "r132",
      "r136",
      "r137",
      "r138",
      "r139",
      "r140",
      "r142",
      "r143",
      "r144"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.",
        "label": "Segment Reporting Disclosure [Text Block]"
       }
      }
     },
     "localname": "SegmentReportingDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ShareBasedCompensation": {
     "auth_ref": [
      "r68"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows": {
       "order": 12.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of noncash expense for share-based payment arrangement.",
        "label": "us-gaap_ShareBasedCompensation",
        "verboseLabel": "Stock option awards expense"
       }
      }
     },
     "localname": "ShareBasedCompensation",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1": {
     "auth_ref": [
      "r258"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.",
        "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1",
        "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod": {
     "auth_ref": [
      "r265"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.",
        "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod",
        "negatedLabel": "Forfeited\u2014due to death (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-vested-phantom-shares-details"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod": {
     "auth_ref": [
      "r268"
     ],
     "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": "Granted\u2014arising from dividends declared during the year. (in shares)",
        "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-vested-phantom-shares-details"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": {
     "auth_ref": [
      "r267"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.",
        "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
        "periodEndLabel": "Outstanding (in shares)",
        "periodStartLabel": "Outstanding (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-vested-phantom-shares-details"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber": {
     "auth_ref": [
      "r261",
      "r263"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of equity instruments other than options outstanding, including both vested and non-vested instruments.",
        "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber",
        "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number, Ending Balance (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant": {
     "auth_ref": [
      "r277"
     ],
     "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": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant",
        "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Gross number of share options (or share units) granted during the period.",
        "label": "Granted, non-vested shares (in shares)",
        "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r271"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.",
        "label": "Granted, weighted average exercise price per share, non-vested (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue": {
     "auth_ref": [
      "r277"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.",
        "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue",
        "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber": {
     "auth_ref": [
      "r262",
      "r277"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of options outstanding, including both vested and non-vested options.",
        "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber",
        "periodEndLabel": "Balance (in shares)",
        "periodStartLabel": "Balance (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice": {
     "auth_ref": [
      "r261"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.",
        "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice",
        "periodEndLabel": "Balance, weighted average exercise price (in dollars per share)",
        "periodStartLabel": "Balance, weighted average exercise price (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice": {
     "auth_ref": [
      "r274"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "label": "Options exercisable at year end, weighted average exercise price per share, vested (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber": {
     "auth_ref": [
      "r273"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber",
        "periodEndLabel": "Balance, vested (in shares)",
        "periodStartLabel": "Balance, vested (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice": {
     "auth_ref": [
      "r273"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "label": "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice",
        "periodEndLabel": "Balance, weighted average exercise price per share (in dollars per share)",
        "periodStartLabel": "Balance, weighted average exercise price per share (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": {
     "auth_ref": [
      "r255",
      "r259"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Award under share-based payment arrangement.",
        "label": "Award Type [Domain]"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-vested-phantom-shares-details",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-tables"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.",
        "label": "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice",
        "terseLabel": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis": {
     "auth_ref": [
      "r275"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by range of option prices pertaining to options granted.",
        "label": "Exercise Price Range [Axis]"
       }
      }
     },
     "localname": "ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain": {
     "auth_ref": [
      "r276"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Supplementary information on outstanding and exercisable share awards as of the balance sheet date which stratifies outstanding options by ranges of exercise prices.",
        "label": "Exercise Price Range [Domain]"
       }
      }
     },
     "localname": "ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions": {
     "auth_ref": [
      "r269"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.",
        "label": "Exercisable number (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions": {
     "auth_ref": [
      "r262"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.",
        "label": "Outstanding number (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details"
     ],
     "xbrltype": "sharesItemType"
    },
    "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": "us-gaap_SharePrice",
        "terseLabel": "Share Price (in dollars per share)"
       }
      }
     },
     "localname": "SharePrice",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of non-vested options outstanding.",
        "label": "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares",
        "periodEndLabel": "Balance, non-vested shares (in shares)",
        "periodStartLabel": "Balance, non-vested shares (in shares)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of non-vested options forfeited.",
        "label": "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares",
        "negatedLabel": "Forfeited, non-vested shares (in shares)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average grant-date fair value of non-vested options forfeited.",
        "label": "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue",
        "negatedLabel": "Forfeited, weighted average exercise price per share, non-vested (in dollars per share)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average grant-date fair value of non-vested options outstanding.",
        "label": "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue",
        "periodEndLabel": "Balance, weighted average exercise price per share, non-vested (in dollars per share)",
        "periodStartLabel": "Balance, weighted average exercise price per share, non-vested (in dollars per share)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2": {
     "auth_ref": [
      "r273"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2",
        "verboseLabel": "Remaining contractual life (years), outstanding shares (Year)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1": {
     "auth_ref": [
      "r273"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "label": "Remaining contractual life (years), vested (Year)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Number of options vested.",
        "label": "Vested, vested (in shares)",
        "negatedLabel": "Vested, non-vested shares (in shares)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average grant-date fair value of options vested.",
        "label": "Vested, weighted average exercise price per share (in dollars per share)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1": {
     "auth_ref": [
      "r264"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.",
        "label": "Exercisable weighted average exercise price (in dollars per share)"
       }
      }
     },
     "localname": "SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2": {
     "auth_ref": [
      "r274"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Exercisable, weighted average remaining contractual life (Year)"
       }
      }
     },
     "localname": "SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1": {
     "auth_ref": [
      "r262"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.",
        "label": "Outstanding, weighted average exercise price (in dollars per share)"
       }
      }
     },
     "localname": "SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2": {
     "auth_ref": [
      "r273"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Outstanding weighted average remaining life (Year)"
       }
      }
     },
     "localname": "SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details"
     ],
     "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": "us-gaap_SharesOutstanding",
        "periodEndLabel": "Balance (in shares)",
        "periodStartLabel": "Balance (in shares)"
       }
      }
     },
     "localname": "SharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShortDurationInsuranceContractAccidentYear2019Member": {
     "auth_ref": [
      "r473"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accident year 2019 in which covered event occurs under terms of short-duration insurance contract.",
        "label": "Short-Duration Insurance Contract, Accident Year 2019 [Member]"
       }
      }
     },
     "localname": "ShortDurationInsuranceContractAccidentYear2019Member",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShortDurationInsuranceContractAccidentYear2020Member": {
     "auth_ref": [
      "r473"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accident year 2020 in which covered event occurs under terms of short-duration insurance contract.",
        "label": "Short-Duration Insurance Contract, Accident Year 2020 [Member]"
       }
      }
     },
     "localname": "ShortDurationInsuranceContractAccidentYear2020Member",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShortDurationInsuranceContractAccidentYear2021Member": {
     "auth_ref": [
      "r473"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accident year 2021 in which covered event occurs under terms of short-duration insurance contract.",
        "label": "Short-Duration Insurance Contract, Accident Year 2021 [Member]"
       }
      }
     },
     "localname": "ShortDurationInsuranceContractAccidentYear2021Member",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShortDurationInsuranceContractsAccidentYear2017Member": {
     "auth_ref": [
      "r473"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accident year 2017 in which a covered event occurs under the terms of the short-duration insurance contract.",
        "label": "Short-duration Insurance Contracts, Accident Year 2017 [Member]"
       }
      }
     },
     "localname": "ShortDurationInsuranceContractsAccidentYear2017Member",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShortDurationInsuranceContractsAccidentYear2018Member": {
     "auth_ref": [
      "r473"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accident year 2018 in which covered event occurs under terms of short-duration insurance contract.",
        "label": "Short-duration Insurance Contracts, Accident Year 2018 [Member]"
       }
      }
     },
     "localname": "ShortDurationInsuranceContractsAccidentYear2018Member",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsAccidentYear2012Member": {
     "auth_ref": [
      "r473"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accident year 2012 in which a covered event occurs under the terms of the short-duration insurance contract.",
        "label": "Short-duration Insurance Contracts, Accident Year 2012 [Member]"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsAccidentYear2012Member",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsAccidentYear2013Member": {
     "auth_ref": [
      "r473"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accident year 2013 in which a covered event occurs under the terms of the short-duration insurance contract.",
        "label": "Short-duration Insurance Contracts, Accident Year 2013 [Member]"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsAccidentYear2013Member",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsAccidentYear2014Member": {
     "auth_ref": [
      "r473"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accident year 2014 in which a covered event occurs under the terms of the short-duration insurance contract.",
        "label": "Short-duration Insurance Contracts, Accident Year 2014 [Member]"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsAccidentYear2014Member",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsAccidentYear2015Member": {
     "auth_ref": [
      "r473"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accident year 2015 in which a covered event occurs under the terms of the short-duration insurance contract.",
        "label": "Short-duration Insurance Contracts, Accident Year 2015 [Member]"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsAccidentYear2015Member",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsAccidentYear2016Member": {
     "auth_ref": [
      "r473"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accident year 2016 in which a covered event occurs under the terms of the short-duration insurance contract.",
        "label": "Short-duration Insurance Contracts, Accident Year 2016 [Member]"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsAccidentYear2016Member",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsAccidentYearAxis": {
     "auth_ref": [
      "r473"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by accident year in which a covered event occurs under the terms of the short-duration insurance contract.",
        "label": "Short-duration Insurance Contracts, Accident Year [Axis]"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsAccidentYearAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsAccidentYearDomain": {
     "auth_ref": [
      "r473"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Accident year in which a covered event occurs under the terms of the short-duration insurance contract.",
        "label": "Short-duration Insurance Contracts, Accident Year [Domain]"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsAccidentYearDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseNet": {
     "auth_ref": [
      "r472"
     ],
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after reinsurance, of paid claims and allocated claim adjustment expense used in claims development for short-duration insurance contracts. Excludes unallocated claim adjustment expense.",
        "label": "Paid Claims and Allocated Claim Adjustment Expense, Net of Reinsurance"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsCumulativePaidClaimsAndAllocatedClaimAdjustmentExpenseNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearEight": {
     "auth_ref": [
      "r477"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of average annual payout, after reinsurance, in the eighth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.",
        "label": "Average Annual Percentage Payout Year 8"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsHistoricalClaimsDurationYearEight",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearFive": {
     "auth_ref": [
      "r477"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of average annual payout, after reinsurance, in the fifth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.",
        "label": "Average Annual Percentage Payout Year 5"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsHistoricalClaimsDurationYearFive",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearFour": {
     "auth_ref": [
      "r477"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of average annual payout, after reinsurance, in the fourth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.",
        "label": "Average Annual Percentage Payout Year 4"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsHistoricalClaimsDurationYearFour",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearNine": {
     "auth_ref": [
      "r477"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of average annual payout, after reinsurance, in the ninth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.",
        "label": "Average Annual Percentage Payout Year 9"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsHistoricalClaimsDurationYearNine",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearOne": {
     "auth_ref": [
      "r477"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of average annual payout, after reinsurance, in the first year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.",
        "label": "Average Annual Percentage Payout Year 1"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsHistoricalClaimsDurationYearOne",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearSeven": {
     "auth_ref": [
      "r477"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of average annual payout, after reinsurance, in the seventh year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.",
        "label": "Average Annual Percentage Payout Year 7"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsHistoricalClaimsDurationYearSeven",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearSix": {
     "auth_ref": [
      "r477"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of average annual payout, after reinsurance, in the sixth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.",
        "label": "Average Annual Percentage Payout Year 6"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsHistoricalClaimsDurationYearSix",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearTen": {
     "auth_ref": [
      "r477"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of average annual payout, after reinsurance, in the tenth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.",
        "label": "Average Annual Percentage Payout Year 10"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsHistoricalClaimsDurationYearTen",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearThree": {
     "auth_ref": [
      "r477"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of average annual payout, after reinsurance, in the third year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.",
        "label": "Average Annual Percentage Payout Year 3"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsHistoricalClaimsDurationYearThree",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsHistoricalClaimsDurationYearTwo": {
     "auth_ref": [
      "r477"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Percentage of average annual payout, after reinsurance, in the second year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.",
        "label": "Average Annual Percentage Payout Year 2"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsHistoricalClaimsDurationYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsIncurredButNotReportedIbnrClaimsLiabilityNet": {
     "auth_ref": [
      "r474",
      "r476"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Undiscounted amount, after reinsurance, of incurred-but-not-reported (IBNR) liabilities plus expected development on reported claims, for claims and allocated claim adjustment expense for short-duration insurance contracts. Excludes unallocated claim adjustment expense.",
        "label": "IBNR Reserves",
        "terseLabel": "IBNR Reserves"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsIncurredButNotReportedIbnrClaimsLiabilityNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsIncurredClaimsAndAllocatedClaimAdjustmentExpenseNet": {
     "auth_ref": [
      "r471"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Undiscounted amount, after reinsurance, of incurred claims and allocated claim adjustment expense used in claims development for short-duration insurance contracts. Excludes unallocated claim adjustment expense.",
        "label": "Incurred Claims and Allocated Claim Adjustment Expense, Net of Reinsurance"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsIncurredClaimsAndAllocatedClaimAdjustmentExpenseNet",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsNumberOfReportedClaims": {
     "auth_ref": [
      "r475"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Cumulative number of reported claims for short-duration insurance contracts.",
        "label": "Cumulative Number of Reported Claims",
        "terseLabel": "Cumulative Number of Reported Claims"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsNumberOfReportedClaims",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details"
     ],
     "xbrltype": "integerItemType"
    },
    "us-gaap_ShortdurationInsuranceContractsScheduleOfHistoricalClaimsDurationTableTextBlock": {
     "auth_ref": [
      "r477"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Tabular disclosure of average annual percentage payout of incurred claims by age, after reinsurance, for short-duration insurance contracts.",
        "label": "Short-duration Insurance Contracts, Schedule of Historical Claims Duration [Table Text Block]"
       }
      }
     },
     "localname": "ShortdurationInsuranceContractsScheduleOfHistoricalClaimsDurationTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-tables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SignificantAccountingPoliciesTextBlock": {
     "auth_ref": [
      "r74",
      "r80"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for all significant accounting policies of the reporting entity.",
        "label": "Significant Accounting Policies [Text Block]"
       }
      }
     },
     "localname": "SignificantAccountingPoliciesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SoftwareDevelopmentMember": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Internally developed software for sale, licensing or long-term internal use.",
        "label": "Software Development [Member]"
       }
      }
     },
     "localname": "SoftwareDevelopmentMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-property-and-equipment-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_StatementBusinessSegmentsAxis": {
     "auth_ref": [
      "r1",
      "r109",
      "r113",
      "r114",
      "r115",
      "r116",
      "r117",
      "r118",
      "r119",
      "r120",
      "r121",
      "r122",
      "r123",
      "r124",
      "r127",
      "r128",
      "r129",
      "r130",
      "r132",
      "r133",
      "r134",
      "r135",
      "r136",
      "r138",
      "r143",
      "r189",
      "r198",
      "r200",
      "r201",
      "r478"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by business segments.",
        "label": "Segments [Axis]"
       }
      }
     },
     "localname": "StatementBusinessSegmentsAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-segment-reporting-information-details"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementEquityComponentsAxis": {
     "auth_ref": [
      "r0",
      "r28",
      "r43",
      "r44",
      "r45",
      "r81",
      "r82",
      "r83",
      "r85",
      "r91",
      "r93",
      "r108",
      "r174",
      "r237",
      "r238",
      "r278",
      "r279",
      "r280",
      "r300",
      "r301",
      "r321",
      "r333",
      "r334",
      "r335",
      "r336",
      "r337",
      "r338",
      "r482",
      "r483",
      "r484",
      "r540"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by component of equity.",
        "label": "Equity Components [Axis]"
       }
      }
     },
     "localname": "StatementEquityComponentsAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-"
     ],
     "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]"
       }
      }
     },
     "localname": "StatementLineItems",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-parentheticals",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations",
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business",
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-10-shareholders-equity",
      "http://www.amerinst.bm/20211231/role/statement-note-10-shareholders-equity-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-11-premiums-written",
      "http://www.amerinst.bm/20211231/role/statement-note-11-premiums-written-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-summary-of-levels-of-solvency-and-liquidity-details",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-segment-reporting-information-details",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-vested-phantom-shares-details",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-16-commitments-and-contingencies",
      "http://www.amerinst.bm/20211231/role/statement-note-16-commitments-and-contingencies-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets",
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-property-and-equipment-details",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-deferred-tax-assets-details",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets",
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details",
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-unpaid-losses-and-loss-adjustment-expenses-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-tables",
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "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/2021-01-31",
     "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/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement of Comprehensive Income [Abstract]"
       }
      }
     },
     "localname": "StatementOfIncomeAndComprehensiveIncomeAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfStockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "Statement of Stockholders' Equity [Abstract]"
       }
      }
     },
     "localname": "StatementOfStockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementTable": {
     "auth_ref": [
      "r81",
      "r82",
      "r83",
      "r108",
      "r396"
     ],
     "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]"
       }
      }
     },
     "localname": "StatementTable",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-parentheticals",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-cash-flows",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-comprehensive-loss",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations",
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business",
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-10-shareholders-equity",
      "http://www.amerinst.bm/20211231/role/statement-note-10-shareholders-equity-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-11-premiums-written",
      "http://www.amerinst.bm/20211231/role/statement-note-11-premiums-written-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-12-operating-and-management-expenses-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-summary-of-levels-of-solvency-and-liquidity-details",
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-segment-reporting-information-details",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-options-outstanding-by-exercise-price-range-details",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-the-status-of-the-stock-option-plan-details",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-summary-of-vested-phantom-shares-details",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-16-commitments-and-contingencies",
      "http://www.amerinst.bm/20211231/role/statement-note-16-commitments-and-contingencies-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-quarterly-financial-information-details",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies",
      "http://www.amerinst.bm/20211231/role/statement-note-2-significant-accounting-policies-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets",
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-major-categories-of-net-interest-and-dividend-income-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-sales-and-maturities-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-property-and-equipment-details",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-deferred-tax-assets-details",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-effective-income-tax-rate-reconciliation-details",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets",
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-prepaid-expenses-details",
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-average-annual-percentage-payout-of-incurred-claims-by-age-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-incurred-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-unpaid-losses-and-loss-adjustment-expenses-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-paid-claims-and-allocated-claim-adjustment-expense-net-of-reinsurance-unaudited-details",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-accrued-expenses-and-other-liabilities-details",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-tables",
      "http://www.amerinst.bm/20211231/role/statement-significant-accounting-policies-policies"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithRegulatoryApproval": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of dividends that can be declared or paid with approval of regulatory agency.",
        "label": "us-gaap_StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithRegulatoryApproval",
        "terseLabel": "Statutory Accounting Practices, Statutory Amount Available for Dividend Payments with Regulatory Approval"
       }
      }
     },
     "localname": "StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithRegulatoryApproval",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance": {
     "auth_ref": [
      "r436",
      "r491"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The amount of statutory capital and surplus (stockholders' equity) as of the balance sheet date using prescribed or permitted statutory accounting practices (rather than GAAP, if different) of the state or country.",
        "label": "us-gaap_StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance",
        "terseLabel": "Statutory Capital &amp; Surplus, Actual"
       }
      }
     },
     "localname": "StatutoryAccountingPracticesStatutoryCapitalAndSurplusBalance",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-summary-of-levels-of-solvency-and-liquidity-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StatutoryAccountingPracticesStatutoryCapitalAndSurplusRequired": {
     "auth_ref": [
      "r492"
     ],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of statutory capital required to be maintained as of the balance sheet date under prescribed or permitted statutory accounting practices.",
        "label": "us-gaap_StatutoryAccountingPracticesStatutoryCapitalAndSurplusRequired",
        "terseLabel": "Statutory Capital &amp; Surplus, Minimum"
       }
      }
     },
     "localname": "StatutoryAccountingPracticesStatutoryCapitalAndSurplusRequired",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-summary-of-levels-of-solvency-and-liquidity-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockRepurchaseProgramAuthorizedAmount1": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount of stock repurchase plan authorized.",
        "label": "us-gaap_StockRepurchaseProgramAuthorizedAmount1",
        "terseLabel": "Stock Repurchase Program, Authorized Amount"
       }
      }
     },
     "localname": "StockRepurchaseProgramAuthorizedAmount1",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-10-shareholders-equity-details-textual"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquity": {
     "auth_ref": [
      "r11",
      "r16",
      "r17",
      "r76",
      "r146",
      "r173",
      "r331",
      "r346"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "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": "us-gaap_StockholdersEquity",
        "periodEndLabel": "Balance",
        "periodStartLabel": "Balance",
        "totalLabel": "TOTAL SHAREHOLDERS\u2019 EQUITY"
       }
      }
     },
     "localname": "StockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-",
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-changes-in-shareholders-equity-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "SHAREHOLDERS\u2019 EQUITY"
       }
      }
     },
     "localname": "StockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockholdersEquityNoteDisclosureTextBlock": {
     "auth_ref": [
      "r75",
      "r223",
      "r225",
      "r226",
      "r227",
      "r228",
      "r229",
      "r230",
      "r231",
      "r232",
      "r233",
      "r234",
      "r236",
      "r238",
      "r239"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.",
        "label": "Stockholders' Equity Note Disclosure [Text Block]"
       }
      }
     },
     "localname": "StockholdersEquityNoteDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-10-shareholders-equity"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SubsequentEventMember": {
     "auth_ref": [
      "r339",
      "r347"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Identifies event that occurred after the balance sheet date but before financial statements are issued or available to be issued.",
        "label": "Subsequent Event [Member]"
       }
      }
     },
     "localname": "SubsequentEventMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business",
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business-details-textual"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SubsequentEventTypeAxis": {
     "auth_ref": [
      "r339",
      "r347"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Information by event that occurred after the balance sheet date but before financial statements are issued or available to be issued.",
        "label": "Subsequent Event Type [Axis]"
       }
      }
     },
     "localname": "SubsequentEventTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business",
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business-details-textual"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SubsequentEventTypeDomain": {
     "auth_ref": [
      "r339",
      "r347"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Event that occurred after the balance sheet date but before financial statements are issued or available to be issued.",
        "label": "Subsequent Event Type [Domain]"
       }
      }
     },
     "localname": "SubsequentEventTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business",
      "http://www.amerinst.bm/20211231/role/statement-note-1-description-of-business-details-textual"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense": {
     "auth_ref": [
      "r467"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details": {
       "order": 0.0,
       "parentTag": "us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after effects of reinsurance, of expense for claims incurred in the current reporting period and related claims settlement costs.",
        "label": "Current year"
       }
      }
     },
     "localname": "SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense": {
     "auth_ref": [
      "r467"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred in prior reporting periods and related claims settlement costs.",
        "label": "Prior years",
        "terseLabel": "Prior Year Claims and Claims Adjustment Expense"
       }
      }
     },
     "localname": "SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-details-textual",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-liability-for-losses-and-loss-adjustment-expense-activity-details"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_TableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-us": {
       "role": {
        "label": "us-gaap_TableTextBlock",
        "terseLabel": "Notes Tables"
       }
      }
     },
     "localname": "TableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-13-dividend-restrictions-and-statutory-requirements-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-14-segment-information-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-15-stock-compensation-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-17-unaudited-condensed-quarterly-financial-data-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-5-property-and-equipment-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-6-taxation-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-7-prepaid-expenses-and-other-assets-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-8-liability-for-unpaid-losses-and-loss-adjustment-expenses-tables",
      "http://www.amerinst.bm/20211231/role/statement-note-9-accrued-expenses-and-other-liabilities-tables"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_TransfersAndServicingOfFinancialAssetsTextBlock": {
     "auth_ref": [
      "r348",
      "r349",
      "r354",
      "r358",
      "r359",
      "r360",
      "r365",
      "r366",
      "r368",
      "r369",
      "r371",
      "r372",
      "r373",
      "r374",
      "r375",
      "r380",
      "r381",
      "r388",
      "r390",
      "r394"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "The entire disclosure for a transferor's continuing involvement in financial assets that it has transferred in a securitization or asset-backed financing arrangement, the nature of any restrictions on assets reported by an entity in its statement of financial position that relate to a transferred financial asset (including the carrying amounts of such assets), how servicing assets and servicing liabilities are reported, and (for securitization or asset-backed financing arrangements accounted for as sales) when a transferor has continuing involvement with the transferred financial assets and transfers of financial assets accounted for as secured borrowings, how the transfer of financial assets affects an entity's financial position, financial performance, and cash flows.",
        "label": "Transfers and Servicing of Financial Assets [Text Block]"
       }
      }
     },
     "localname": "TransfersAndServicingOfFinancialAssetsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-3-pledged-assets"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain": {
     "auth_ref": [
      "r159",
      "r160",
      "r168",
      "r169",
      "r170",
      "r220",
      "r235",
      "r320",
      "r348",
      "r349",
      "r350",
      "r351",
      "r352",
      "r353",
      "r355",
      "r356",
      "r357",
      "r361",
      "r362",
      "r363",
      "r364",
      "r367",
      "r370",
      "r376",
      "r377",
      "r378",
      "r379",
      "r382",
      "r383",
      "r384",
      "r385",
      "r386",
      "r387",
      "r388",
      "r389",
      "r391",
      "r392",
      "r393",
      "r529",
      "r530",
      "r531",
      "r532",
      "r533",
      "r534",
      "r535"
     ],
     "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]"
       }
      }
     },
     "localname": "TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_USGovernmentAgenciesDebtSecuritiesMember": {
     "auth_ref": [
      "r79",
      "r244",
      "r418"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Debentures, notes, and other debt securities issued by US government agencies, for example, but not limited to, Government National Mortgage Association (GNMA or Ginnie Mae). Excludes US treasury securities and debt issued by government-sponsored Enterprises (GSEs), for example, but is not limited to, Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac), Federal National Mortgage Association (FNMA or Fannie Mae), and the Federal Home Loan Bank (FHLB).",
        "label": "US Government Agencies Debt Securities [Member]"
       }
      }
     },
     "localname": "USGovernmentAgenciesDebtSecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_USStatesAndPoliticalSubdivisionsMember": {
     "auth_ref": [
      "r244",
      "r495"
     ],
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Bonds or similar securities issued by state, city, or local US governments or the agencies operated by state, city, or local governments. Debt securities issued by state governments may include bond issuances of US state authorities including, for example, but not limited to, housing authorities, dormitory authorities, and general obligations while debt securities issued by political subdivisions of US states would include, for example, debt issuances by county, borough, city, or municipal governments.",
        "label": "US States and Political Subdivisions Debt Securities [Member]"
       }
      }
     },
     "localname": "USStatesAndPoliticalSubdivisionsMember",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-cost-or-amortized-cost-gross-unrealized-holding-gains-and-losses-and-estimated-fair-value-of-fixed-maturity-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fair-value-of-investments-details",
      "http://www.amerinst.bm/20211231/role/statement-note-4-investments-fixed-maturity-and-securities-in-an-unrealized-loss-position-and-aggregate-fair-value-and-gross-unrealized-loss-details"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_UnearnedPremiums": {
     "auth_ref": [
      "r432"
     ],
     "calculation": {
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-": {
       "order": 1.0,
       "parentTag": "us-gaap_Liabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-us": {
       "role": {
        "documentation": "Carrying amount of premiums written on insurance contracts that have not been earned as of the balance sheet date.",
        "label": "us-gaap_UnearnedPremiums",
        "terseLabel": "Unearned premiums"
       }
      }
     },
     "localname": "UnearnedPremiums",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-balance-sheets-"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding": {
     "auth_ref": [
      "r95",
      "r100"
     ],
     "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": "us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding",
        "terseLabel": "Diluted (in shares)"
       }
      }
     },
     "localname": "WeightedAverageNumberOfDilutedSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": {
     "auth_ref": [
      "r94",
      "r100"
     ],
     "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": "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic",
        "terseLabel": "Basic (in shares)"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingBasic",
     "nsuri": "http://fasb.org/us-gaap/2021-01-31",
     "presentation": [
      "http://www.amerinst.bm/20211231/role/statement-consolidated-statements-of-operations"
     ],
     "xbrltype": "sharesItemType"
    }
   },
   "unitCount": 7
  }
 },
 "std_ref": {
  "r0": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "105",
   "URI": "http://asc.fasb.org/extlink&oid=124434974&loc=SL124442142-165695"
  },
  "r1": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760"
  },
  "r10": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(22))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r100": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257"
  },
  "r101": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257"
  },
  "r102": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257"
  },
  "r103": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125512782&loc=d3e3842-109258"
  },
  "r104": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "52",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125512782&loc=d3e4984-109258"
  },
  "r105": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "270",
   "URI": "http://asc.fasb.org/extlink&oid=124502072&loc=d3e1280-108306"
  },
  "r106": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "270",
   "URI": "http://asc.fasb.org/extlink&oid=124502072&loc=SL124452896-108306"
  },
  "r107": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "270",
   "URI": "http://asc.fasb.org/topic&trid=2126967"
  },
  "r108": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "272",
   "URI": "http://asc.fasb.org/extlink&oid=125520817&loc=d3e70191-108054"
  },
  "r109": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8657-108599"
  },
  "r11": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(29))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r110": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599"
  },
  "r111": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599"
  },
  "r112": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599"
  },
  "r113": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r114": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r115": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r116": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r117": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r118": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r119": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r12": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(3))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r120": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r121": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(j)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r122": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599"
  },
  "r123": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8813-108599"
  },
  "r124": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8813-108599"
  },
  "r125": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8813-108599"
  },
  "r126": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "26",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8844-108599"
  },
  "r127": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599"
  },
  "r128": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599"
  },
  "r129": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599"
  },
  "r13": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r130": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599"
  },
  "r131": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599"
  },
  "r132": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "31",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599"
  },
  "r133": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599"
  },
  "r134": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599"
  },
  "r135": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599"
  },
  "r136": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599"
  },
  "r137": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599"
  },
  "r138": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599"
  },
  "r139": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "34",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e8981-108599"
  },
  "r14": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(3))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r140": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "40",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599"
  },
  "r141": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "41",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599"
  },
  "r142": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "41",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599"
  },
  "r143": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "42",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599"
  },
  "r144": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "280",
   "URI": "http://asc.fasb.org/topic&trid=2134510"
  },
  "r145": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=124259787&loc=d3e4647-111522"
  },
  "r146": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 4.E)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=122038336&loc=d3e74512-122707"
  },
  "r147": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562"
  },
  "r148": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=124260329&loc=d3e26853-111562"
  },
  "r149": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=124260329&loc=SL6284422-111562"
  },
  "r15": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(4))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r150": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563"
  },
  "r151": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(aa)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563"
  },
  "r152": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563"
  },
  "r153": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563"
  },
  "r154": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563"
  },
  "r155": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27198-111563"
  },
  "r156": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27198-111563"
  },
  "r157": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27198-111563"
  },
  "r158": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27198-111563"
  },
  "r159": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563"
  },
  "r16": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r160": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=SL120269820-111563"
  },
  "r161": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27290-111563"
  },
  "r162": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(2)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27290-111563"
  },
  "r163": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(3)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27290-111563"
  },
  "r164": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27290-111563"
  },
  "r165": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27337-111563"
  },
  "r166": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "320",
   "URI": "http://asc.fasb.org/extlink&oid=123581744&loc=d3e27357-111563"
  },
  "r167": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "320",
   "URI": "http://asc.fasb.org/topic&trid=2196928"
  },
  "r168": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "321",
   "URI": "http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714"
  },
  "r169": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "321",
   "URI": "http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714"
  },
  "r17": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(31))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r170": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "321",
   "URI": "http://asc.fasb.org/extlink&oid=123583765&loc=SL75117539-209714"
  },
  "r171": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "321",
   "URI": "http://asc.fasb.org/extlink&oid=123583765&loc=SL75117546-209714"
  },
  "r172": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(2)",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571"
  },
  "r173": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571"
  },
  "r174": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=122640432&loc=SL121648383-210437"
  },
  "r175": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919244-210447"
  },
  "r176": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447"
  },
  "r177": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919253-210447"
  },
  "r178": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447"
  },
  "r179": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447"
  },
  "r18": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(32))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r180": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454"
  },
  "r181": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(1)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455"
  },
  "r182": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(2)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455"
  },
  "r183": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)(3)",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455"
  },
  "r184": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455"
  },
  "r185": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922890-210455"
  },
  "r186": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922895-210455"
  },
  "r187": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=124269663&loc=SL82922900-210455"
  },
  "r188": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "30",
   "Topic": "326",
   "URI": "http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456"
  },
  "r189": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267"
  },
  "r19": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.1)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r190": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275"
  },
  "r191": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(d)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275"
  },
  "r192": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r193": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)(1)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r194": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(d)",
   "Topic": "350",
   "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275"
  },
  "r195": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r196": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r197": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r198": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230"
  },
  "r199": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "360",
   "URI": "http://asc.fasb.org/topic&trid=2155823"
  },
  "r2": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "205",
   "URI": "http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760"
  },
  "r20": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.13(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r200": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
  },
  "r201": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 5.P.4(d))",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
  },
  "r202": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "440",
   "URI": "http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308"
  },
  "r203": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "440",
   "URI": "http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308"
  },
  "r204": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "440",
   "URI": "http://asc.fasb.org/topic&trid=2144648"
  },
  "r205": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349"
  },
  "r206": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "450",
   "URI": "http://asc.fasb.org/topic&trid=2127136"
  },
  "r207": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(i))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756"
  },
  "r208": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(ii))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756"
  },
  "r209": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(iii)(A))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756"
  },
  "r21": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.13)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r210": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(iii))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756"
  },
  "r211": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(4)(iv))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756"
  },
  "r212": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-01(a)(5))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756"
  },
  "r213": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(4)(i))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756"
  },
  "r214": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(4)(iii)(A))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756"
  },
  "r215": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(4)(iii)(B))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756"
  },
  "r216": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(4)(iv))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756"
  },
  "r217": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.13-02(a)(5))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756"
  },
  "r218": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611"
  },
  "r219": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611"
  },
  "r22": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.14)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r220": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1I",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466505&loc=SL123495371-112611"
  },
  "r221": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "69B",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612"
  },
  "r222": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "69C",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612"
  },
  "r223": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644"
  },
  "r224": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644"
  },
  "r225": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644"
  },
  "r226": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644"
  },
  "r227": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(i)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644"
  },
  "r228": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644"
  },
  "r229": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644"
  },
  "r23": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.17)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r230": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644"
  },
  "r231": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644"
  },
  "r232": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496180-112644"
  },
  "r233": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644"
  },
  "r234": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644"
  },
  "r235": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644"
  },
  "r236": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644"
  },
  "r237": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644"
  },
  "r238": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.3-04)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770"
  },
  "r239": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "505",
   "URI": "http://asc.fasb.org/topic&trid=2208762"
  },
  "r24": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19-26)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r240": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130543-203045"
  },
  "r241": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045"
  },
  "r242": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=123410239&loc=SL49130690-203046-203046"
  },
  "r243": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(i)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r244": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(ii)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r245": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(01)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r246": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r247": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)(A)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r248": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)(B)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r249": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(02)(C)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r25": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.20,24)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r250": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(03)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920"
  },
  "r251": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921"
  },
  "r252": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Subparagraph": "(d)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947"
  },
  "r253": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "80",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=35742348&loc=SL14450788-114948"
  },
  "r254": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=123468992&loc=d3e4534-113899"
  },
  "r255": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901"
  },
  "r256": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901"
  },
  "r257": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901"
  },
  "r258": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r259": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a),(g)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r26": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.25)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r260": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r261": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r262": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(i)-(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r263": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r264": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r265": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(3)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r266": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r267": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(i)-(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r268": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r269": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(iii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r27": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r270": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r271": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r272": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r273": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r274": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r275": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r276": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r277": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901"
  },
  "r278": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r279": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(f)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r28": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29-31)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r280": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r281": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(g)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333"
  },
  "r282": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=122142933&loc=d3e11149-113907"
  },
  "r283": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=122142933&loc=d3e11178-113907"
  },
  "r284": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "718",
   "URI": "http://asc.fasb.org/topic&trid=2228938"
  },
  "r285": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=123427490&loc=d3e32059-109318"
  },
  "r286": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=123427490&loc=d3e32247-109318"
  },
  "r287": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=123427490&loc=d3e32280-109318"
  },
  "r288": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32672-109319"
  },
  "r289": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319"
  },
  "r29": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580"
  },
  "r290": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32705-109319"
  },
  "r291": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319"
  },
  "r292": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "19",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32840-109319"
  },
  "r293": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319"
  },
  "r294": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319"
  },
  "r295": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32847-109319"
  },
  "r296": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32857-109319"
  },
  "r297": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32621-109319"
  },
  "r298": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32632-109319"
  },
  "r299": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=121826272&loc=d3e32639-109319"
  },
  "r3": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "205",
   "URI": "http://asc.fasb.org/topic&trid=2122149"
  },
  "r30": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580"
  },
  "r300": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)(2)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277"
  },
  "r301": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(d)(3)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=123459177&loc=SL121830611-158277"
  },
  "r302": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB TOPIC 6.I.5.Q1)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817"
  },
  "r303": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB TOPIC 6.I.7)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817"
  },
  "r304": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 11.C)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=122134291&loc=d3e330215-122817"
  },
  "r305": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=123586238&loc=d3e38679-109324"
  },
  "r306": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "270",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338"
  },
  "r307": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331"
  },
  "r308": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "740",
   "URI": "http://asc.fasb.org/topic&trid=2144680"
  },
  "r309": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "19",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=123454820&loc=SL4569616-111683"
  },
  "r31": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=d3e637-108580"
  },
  "r310": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=123454820&loc=SL4569643-111683"
  },
  "r311": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988"
  },
  "r312": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116870748&loc=SL6758485-165988"
  },
  "r313": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(3)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r314": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c),(3)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r315": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bb)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=123419778&loc=d3e5710-111685"
  },
  "r316": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=123419778&loc=d3e5710-111685"
  },
  "r317": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "810",
   "URI": "http://asc.fasb.org/topic&trid=2197479"
  },
  "r318": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959"
  },
  "r319": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959"
  },
  "r32": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=d3e681-108580"
  },
  "r320": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(f)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=123477628&loc=d3e90205-114008"
  },
  "r321": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(e)(3)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011"
  },
  "r322": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(e)(4)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011"
  },
  "r323": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(f)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011"
  },
  "r324": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258"
  },
  "r325": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258"
  },
  "r326": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=123874694&loc=SL6742756-110258"
  },
  "r327": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=123594809&loc=d3e13220-108610"
  },
  "r328": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611"
  },
  "r329": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=123594938&loc=d3e13467-108611"
  },
  "r33": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580"
  },
  "r330": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=123594938&loc=d3e13476-108611"
  },
  "r331": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612"
  },
  "r332": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "230",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=123444420&loc=d3e33268-110906"
  },
  "r333": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900"
  },
  "r334": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r335": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(b)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r336": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(c)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r337": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Subparagraph": "(d)",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900"
  },
  "r338": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901"
  },
  "r339": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=6450520&loc=d3e32618-110901"
  },
  "r34": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=d3e689-108580"
  },
  "r340": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977"
  },
  "r341": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977"
  },
  "r342": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980"
  },
  "r343": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39599-107864"
  },
  "r344": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "852",
   "URI": "http://asc.fasb.org/extlink&oid=124433192&loc=SL2890621-112765"
  },
  "r345": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "852",
   "URI": "http://asc.fasb.org/extlink&oid=124433192&loc=SL2890621-112765"
  },
  "r346": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "852",
   "URI": "http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766"
  },
  "r347": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "855",
   "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662"
  },
  "r348": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(2)(i)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r349": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(2)(ii)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r35": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL34724391-108580"
  },
  "r350": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r351": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r352": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r353": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r354": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r355": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r356": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r357": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r358": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(cc)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107207-111719"
  },
  "r359": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(5)(ii)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r36": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580"
  },
  "r360": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r361": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r362": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r363": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r364": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r365": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719"
  },
  "r366": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719"
  },
  "r367": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728"
  },
  "r368": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729"
  },
  "r369": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(c)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729"
  },
  "r37": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580"
  },
  "r370": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729"
  },
  "r371": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(c)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729"
  },
  "r372": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122596-111746"
  },
  "r373": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(b)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122596-111746"
  },
  "r374": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(d)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122596-111746"
  },
  "r375": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746"
  },
  "r376": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746"
  },
  "r377": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746"
  },
  "r378": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746"
  },
  "r379": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(4)(i)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746"
  },
  "r38": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580"
  },
  "r380": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(4)(ii)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746"
  },
  "r381": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(5)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122625-111746"
  },
  "r382": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746"
  },
  "r383": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746"
  },
  "r384": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746"
  },
  "r385": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(4)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746"
  },
  "r386": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(5)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746"
  },
  "r387": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(6)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746"
  },
  "r388": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(a)(7)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746"
  },
  "r389": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(b)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746"
  },
  "r39": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669625-108580"
  },
  "r390": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(d)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746"
  },
  "r391": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(e)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746"
  },
  "r392": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(e)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746"
  },
  "r393": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "50",
   "Subparagraph": "(e)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=125521744&loc=d3e122739-111746"
  },
  "r394": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "860",
   "URI": "http://asc.fasb.org/topic&trid=2197590"
  },
  "r395": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "910",
   "URI": "http://asc.fasb.org/extlink&oid=123353855&loc=SL119991595-234733"
  },
  "r396": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 11.L)",
   "Topic": "924",
   "URI": "http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856"
  },
  "r397": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "926",
   "URI": "http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959"
  },
  "r398": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "340",
   "Topic": "928",
   "URI": "http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004"
  },
  "r399": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "20",
   "Topic": "940",
   "URI": "http://asc.fasb.org/extlink&oid=123384075&loc=d3e41242-110953"
  },
  "r4": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=124098289&loc=d3e6676-107765"
  },
  "r40": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=SL7669625-108580"
  },
  "r400": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "320",
   "Topic": "940",
   "URI": "http://asc.fasb.org/subtopic&trid=2176304"
  },
  "r401": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(10))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r402": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(11))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r403": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(16))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r404": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(23))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r405": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(6))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r406": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.10)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r407": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.15(1),(5))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r408": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.15)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r409": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.17)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r41": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124509347&loc=d3e557-108580"
  },
  "r410": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03.4)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878"
  },
  "r411": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(13)(c))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r412": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(13))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r413": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(15))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r414": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(22))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r415": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(26))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r416": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(27))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260"
  },
  "r417": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "235",
   "Subparagraph": "(SX 210.9-05(b)(2))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884"
  },
  "r418": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Subparagraph": "(b)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=123599081&loc=d3e62557-112803"
  },
  "r419": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Subparagraph": "(a)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=123599081&loc=SL120269850-112803"
  },
  "r42": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL116659661-227067"
  },
  "r420": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Subparagraph": "(b)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=123599081&loc=SL120269850-112803"
  },
  "r421": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Subparagraph": "(c)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=123599081&loc=SL120269850-112803"
  },
  "r422": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "320",
   "Subparagraph": "(d)",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=123599081&loc=SL120269850-112803"
  },
  "r423": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "320",
   "Topic": "942",
   "URI": "http://asc.fasb.org/subtopic&trid=2209399"
  },
  "r424": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "360",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=124429447&loc=SL124453093-239630"
  },
  "r425": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=6480726&loc=d3e6691-158385"
  },
  "r426": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=99397103&loc=d3e6811-158387"
  },
  "r427": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=99397103&loc=d3e6824-158387"
  },
  "r428": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(13)(a))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r429": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(5))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r43": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL124442407-227067"
  },
  "r430": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(1)(b))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r431": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(12))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r432": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(13)(a)(2))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r433": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(16))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r434": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(23)(a)(3))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r435": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r436": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(23)(c))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r437": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(25))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r438": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(4))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r439": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(6))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r44": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL124442411-227067"
  },
  "r440": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(7))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r441": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(8))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r442": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03.(a),19)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r443": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03.10)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r444": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03.15)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910"
  },
  "r445": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(1))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r446": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(18))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r447": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(2))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r448": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(22))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r449": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(23))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r45": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=124431353&loc=SL124452729-227067"
  },
  "r450": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(3)(a))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r451": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(3)(b))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r452": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(3)(d))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r453": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(7)(a))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r454": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(8))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r455": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(9))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r456": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04.2)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r457": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04.3(a))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r458": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04.5)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263"
  },
  "r459": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "235",
   "Subparagraph": "(SX 210.12-17(Column E))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=120401096&loc=d3e574992-122915"
  },
  "r46": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(1))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r460": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(c)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=35755530&loc=d3e11264-158415"
  },
  "r461": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(a)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124505477&loc=SL117422543-158416"
  },
  "r462": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124505477&loc=SL117422543-158416"
  },
  "r463": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "30",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124504731&loc=d3e11522-158419"
  },
  "r464": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "310",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=99404803&loc=d3e21409-158489"
  },
  "r465": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "310",
   "Topic": "944",
   "URI": "http://asc.fasb.org/subtopic&trid=4738109"
  },
  "r466": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(a)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437"
  },
  "r467": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(b)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437"
  },
  "r468": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(c)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437"
  },
  "r469": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(cc)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437"
  },
  "r47": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(10))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r470": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437"
  },
  "r471": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(a)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671311-158438"
  },
  "r472": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(b)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671311-158438"
  },
  "r473": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671311-158438"
  },
  "r474": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(a)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671317-158438"
  },
  "r475": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(b)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671317-158438"
  },
  "r476": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4E",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671321-158438"
  },
  "r477": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4G",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671329-158438"
  },
  "r478": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4H",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671331-158438"
  },
  "r479": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Subparagraph": "(d)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124506351&loc=SL117782755-158439"
  },
  "r48": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(20))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r480": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13H",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "40",
   "Subparagraph": "(a)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124504033&loc=SL117783719-158441"
  },
  "r481": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "29F",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124504033&loc=SL117819544-158441"
  },
  "r482": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(e)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641"
  },
  "r483": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(f)(1)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641"
  },
  "r484": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(f)(2)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641"
  },
  "r485": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(g)(1)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641"
  },
  "r486": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(g)(2)(i)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641"
  },
  "r487": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(g)(2)(ii)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641"
  },
  "r488": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "40",
   "Subparagraph": "(h)(2)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124501264&loc=SL117420844-207641"
  },
  "r489": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "40",
   "Subparagraph": "(SAB TOPIC 5.W)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=27015833&loc=d3e570705-122907"
  },
  "r49": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(24))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r490": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/subtopic&trid=2560295"
  },
  "r491": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "505",
   "Subparagraph": "(a)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529"
  },
  "r492": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "505",
   "Subparagraph": "(b)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529"
  },
  "r493": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "605",
   "Subparagraph": "(b)(2)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547"
  },
  "r494": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "605",
   "Subparagraph": "(c)(3)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547"
  },
  "r495": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Subparagraph": "(e)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124508989&loc=d3e19393-158473"
  },
  "r496": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "80",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124508989&loc=d3e19393-158473"
  },
  "r497": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "825",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=124506110&loc=d3e32546-158582"
  },
  "r498": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 1))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010"
  },
  "r499": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 6))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010"
  },
  "r5": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r50": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(25))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r500": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column B)(Footnote 7))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010"
  },
  "r501": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 1))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010"
  },
  "r502": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 6))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010"
  },
  "r503": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 7))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010"
  },
  "r504": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 1))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010"
  },
  "r505": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 6))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010"
  },
  "r506": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B(Column D)(Footnote 7))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611197-123010"
  },
  "r507": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5D",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-13D(Column B)(Footnote 2))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=SL120429264-123010"
  },
  "r508": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5D",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-13D(Column C)(Footnote 2))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=SL120429264-123010"
  },
  "r509": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column A))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010"
  },
  "r51": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(4))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r510": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column B))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010"
  },
  "r511": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column C))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010"
  },
  "r512": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15(Column D))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=122147990&loc=d3e611379-123010"
  },
  "r513": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "320",
   "Topic": "946",
   "URI": "http://asc.fasb.org/subtopic&trid=2324412"
  },
  "r514": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "210",
   "Topic": "954",
   "URI": "http://asc.fasb.org/extlink&oid=120413173&loc=SL6242262-115580"
  },
  "r515": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "210",
   "Topic": "954",
   "URI": "http://asc.fasb.org/extlink&oid=120413209&loc=SL6242269-115581"
  },
  "r516": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "310",
   "Topic": "954",
   "URI": "http://asc.fasb.org/extlink&oid=123366838&loc=d3e3073-115593"
  },
  "r517": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "440",
   "Subparagraph": "(a)",
   "Topic": "954",
   "URI": "http://asc.fasb.org/extlink&oid=6491277&loc=d3e6429-115629"
  },
  "r518": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "360",
   "Subparagraph": "(d)",
   "Topic": "958",
   "URI": "http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916"
  },
  "r519": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "360",
   "Topic": "958",
   "URI": "http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916"
  },
  "r52": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(b)(7)(c))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r520": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "360",
   "Topic": "958",
   "URI": "http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916"
  },
  "r521": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "310",
   "Subparagraph": "(c)",
   "Topic": "976",
   "URI": "http://asc.fasb.org/extlink&oid=6497875&loc=d3e22274-108663"
  },
  "r522": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "310",
   "Subparagraph": "(b)",
   "Topic": "978",
   "URI": "http://asc.fasb.org/extlink&oid=123360121&loc=d3e27327-108691"
  },
  "r523": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b"
  },
  "r524": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r525": {
   "Name": "Form 10-K",
   "Number": "249",
   "Publisher": "SEC",
   "Section": "310"
  },
  "r526": {
   "Name": "Form 20-F",
   "Number": "249",
   "Publisher": "SEC",
   "Section": "220",
   "Subsection": "f"
  },
  "r527": {
   "Name": "Form 40-F",
   "Number": "249",
   "Publisher": "SEC",
   "Section": "240",
   "Subsection": "f"
  },
  "r528": {
   "Name": "Forms 10-K, 10-Q, 20-F",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13",
   "Subsection": "a-1"
  },
  "r529": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(a)",
   "Publisher": "SEC",
   "Section": "1402"
  },
  "r53": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(b)(9)(a))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r530": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(b)",
   "Publisher": "SEC",
   "Section": "1402",
   "Subparagraph": "(1)"
  },
  "r531": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(b)",
   "Publisher": "SEC",
   "Section": "1402",
   "Subparagraph": "(2)"
  },
  "r532": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(b)",
   "Publisher": "SEC",
   "Section": "1402",
   "Subparagraph": "(3)"
  },
  "r533": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(c)",
   "Publisher": "SEC",
   "Section": "1402",
   "Subparagraph": "(2)(i)"
  },
  "r534": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(c)",
   "Publisher": "SEC",
   "Section": "1402",
   "Subparagraph": "(2)(ii)"
  },
  "r535": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(c)",
   "Publisher": "SEC",
   "Section": "1402",
   "Subparagraph": "(2)(iii)"
  },
  "r536": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(b)",
   "Publisher": "SEC",
   "Section": "1403"
  },
  "r537": {
   "Name": "Regulation S-T",
   "Number": "232",
   "Publisher": "SEC",
   "Section": "405"
  },
  "r538": {
   "Name": "Regulation S-X (SX)",
   "Number": "210",
   "Paragraph": "i",
   "Publisher": "SEC",
   "Section": "3",
   "Subsection": "10"
  },
  "r539": {
   "Name": "Securities Act",
   "Number": "230",
   "Publisher": "SEC",
   "Section": "405"
  },
  "r54": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r540": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Subparagraph": "(a)(3)(iii)(03)",
   "Topic": "848"
  },
  "r55": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.4)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r56": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.7(a),(b))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r57": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.7(b))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r58": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.8)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r59": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.9)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227"
  },
  "r6": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(12))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r60": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3151-108585"
  },
  "r61": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3179-108585"
  },
  "r62": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585"
  },
  "r63": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585"
  },
  "r64": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585"
  },
  "r65": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3521-108585"
  },
  "r66": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585"
  },
  "r67": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3536-108585"
  },
  "r68": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585"
  },
  "r69": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585"
  },
  "r7": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(13))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r70": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585"
  },
  "r71": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123570139&loc=d3e3044-108585"
  },
  "r72": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=d3e4273-108586"
  },
  "r73": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=123431023&loc=SL98516268-108586"
  },
  "r74": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=123372394&loc=d3e18726-107790"
  },
  "r75": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(e)(1))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r76": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(g)(1)(ii))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r77": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(h)(2))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r78": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(h))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r79": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(m)(1)(ii)(A))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690"
  },
  "r8": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(14))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r80": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "235",
   "URI": "http://asc.fasb.org/topic&trid=2122369"
  },
  "r81": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "23",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21914-107793"
  },
  "r82": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21930-107793"
  },
  "r83": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124436220&loc=d3e21711-107793"
  },
  "r84": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(2)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794"
  },
  "r85": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(3)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794"
  },
  "r86": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794"
  },
  "r87": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794"
  },
  "r88": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794"
  },
  "r89": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794"
  },
  "r9": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(2))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682"
  },
  "r90": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794"
  },
  "r91": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794"
  },
  "r92": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22658-107794"
  },
  "r93": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=124431687&loc=d3e22663-107794"
  },
  "r94": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1448-109256"
  },
  "r95": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1505-109256"
  },
  "r96": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1252-109256"
  },
  "r97": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256"
  },
  "r98": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256"
  },
  "r99": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=125511455&loc=d3e1337-109256"
  }
 },
 "version": "2.1"
}
