{ "instance": { "llc10k12-31x2019.htm": { "axisCustom": 0, "axisStandard": 35, "contextCount": 330, "dts": { "calculationLink": { "local": [ "gcillc-20191231_cal.xml" ] }, "definitionLink": { "local": [ "gcillc-20191231_def.xml" ], "remote": [ "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-eedm-def-2019-01-31.xml", "http://xbrl.fasb.org/srt/2019/elts/srt-eedm1-def-2019-01-31.xml" ] }, "inline": { "local": [ "llc10k12-31x2019.htm" ] }, "labelLink": { "local": [ "gcillc-20191231_lab.xml" ], "remote": [ "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-doc-2019-01-31.xml", "https://xbrl.sec.gov/dei/2019/dei-doc-2019-01-31.xml" ] }, "presentationLink": { "local": [ "gcillc-20191231_pre.xml" ] }, "referenceLink": { "remote": [ "https://xbrl.sec.gov/dei/2019/dei-ref-2019-01-31.xml", "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-ref-2019-01-31.xml" ] }, "schema": { "local": [ "gcillc-20191231.xsd" ], "remote": [ "http://xbrl.fasb.org/srt/2019/elts/srt-types-2019-01-31.xsd", "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd", "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd", "http://www.xbrl.org/2003/xl-2003-12-31.xsd", "http://www.xbrl.org/2003/xlink-2003-12-31.xsd", "http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd", "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd", "http://www.xbrl.org/2006/ref-2006-02-27.xsd", "http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd", "http://www.xbrl.org/2005/xbrldt-2005.xsd", "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd", "http://xbrl.fasb.org/us-gaap/2019/elts/us-roles-2019-01-31.xsd", "http://xbrl.fasb.org/srt/2019/elts/srt-roles-2019-01-31.xsd", "https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd", "http://xbrl.fasb.org/us-gaap/2019/elts/us-types-2019-01-31.xsd", "http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd", "https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd", "https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd", "https://xbrl.sec.gov/exch/2019/exch-2019-01-31.xsd", "http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd", "http://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd", "http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd", "https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd", "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd", "http://xbrl.fasb.org/us-gaap/2019/elts/us-parts-codification-2019-01-31.xsd", "http://www.xbrl.org/lrr/role/deprecated-2009-12-16.xsd" ] } }, "elementCount": 739, "entityCount": 1, "hidden": { "http://fasb.org/us-gaap/2019-01-31": 32, "http://www.gci.net/20191231": 3, "http://xbrl.sec.gov/dei/2019-01-31": 7, "total": 42 }, "keyCustom": 85, "keyStandard": 441, "memberCustom": 61, "memberStandard": 48, "nsprefix": "gcillc", "nsuri": "http://www.gci.net/20191231", "report": { "R1": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "document", "isDefault": "true", "longName": "0001000 - Document - Cover Page", "role": "http://www.gci.net/role/CoverPage", "shortName": "Cover Page", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "dei:DocumentType", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R10": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BusinessCombinationDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2104100 - Disclosure - Acquisition", "role": "http://www.gci.net/role/Acquisition", "shortName": "Acquisition", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:BusinessCombinationDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R11": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2105100 - Disclosure - Assets and Liabilities Measured at Fair Value", "role": "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValue", "shortName": "Assets and Liabilities Measured at Fair Value", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R12": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2106100 - Disclosure - Investments in Equity Securities", "role": "http://www.gci.net/role/InvestmentsInEquitySecurities", "shortName": "Investments in Equity Securities", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R13": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EquityMethodInvestmentsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2107100 - Disclosure - Investments in Affiliates Accounted for Using the Equity Method", "role": "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethod", "shortName": "Investments in Affiliates Accounted for Using the Equity Method", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EquityMethodInvestmentsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R14": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2108100 - Disclosure - Goodwill and Intangible Assets", "role": "http://www.gci.net/role/GoodwillAndIntangibleAssets", "shortName": "Goodwill and Intangible Assets", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:GoodwillAndIntangibleAssetsDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R15": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LongTermDebtTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2109100 - Disclosure - Debt", "role": "http://www.gci.net/role/Debt", "shortName": "Debt", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LongTermDebtTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R16": { "firstAnchor": { "ancestors": [ "us-gaap:LesseeOperatingLeasesTextBlock", "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeFinanceLeasesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2110100 - Disclosure - Leases", "role": "http://www.gci.net/role/Leases", "shortName": "Leases", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "us-gaap:LesseeOperatingLeasesTextBlock", "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LesseeFinanceLeasesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R17": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2111100 - Disclosure - Income Taxes", "role": "http://www.gci.net/role/IncomeTaxes", "shortName": "Income Taxes", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:IncomeTaxDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R18": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:MinorityInterestDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2113100 - Disclosure - Variable Interest Entities", "role": "http://www.gci.net/role/VariableInterestEntities", "shortName": "Variable Interest Entities", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:MinorityInterestDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R19": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2114100 - Disclosure - Stock-Based Compensation", "role": "http://www.gci.net/role/StockBasedCompensation", "shortName": "Stock-Based Compensation", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R2": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1001000 - Statement - Consolidated Balance Sheets", "role": "http://www.gci.net/role/ConsolidatedBalanceSheets", "shortName": "Consolidated Balance Sheets", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "lang": null, "name": "us-gaap:OtherAssetsCurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R20": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CompensationAndEmployeeBenefitPlansTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2115100 - Disclosure - Employee Benefit Plans", "role": "http://www.gci.net/role/EmployeeBenefitPlans", "shortName": "Employee Benefit Plans", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CompensationAndEmployeeBenefitPlansTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R21": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2116100 - Disclosure - Commitments and Contingencies", "role": "http://www.gci.net/role/CommitmentsAndContingencies", "shortName": "Commitments and Contingencies", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R22": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SegmentReportingDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2117100 - Disclosure - Information About the Company's Operating Segments", "role": "http://www.gci.net/role/InformationAboutCompanysOperatingSegments", "shortName": "Information About the Company's Operating Segments", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SegmentReportingDisclosureTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R23": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:QuarterlyFinancialInformationTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2118100 - Disclosure - Quarterly Financial Information (Unaudited)", "role": "http://www.gci.net/role/QuarterlyFinancialInformationUnaudited", "shortName": "Quarterly Financial Information (Unaudited)", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:QuarterlyFinancialInformationTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R24": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2202201 - Disclosure - Summary of Significant Accounting Principles (Policies)", "role": "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies", "shortName": "Summary of Significant Accounting Principles (Policies)", "subGroupType": "policies", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CashAndCashEquivalentsPolicyTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R25": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2302302 - Disclosure - Summary of Significant Accounting Principles (Tables)", "role": "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesTables", "shortName": "Summary of Significant Accounting Principles (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R26": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2303301 - Disclosure - Supplemental Disclosures to Consolidated Statements of Cash Flows (Tables)", "role": "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsTables", "shortName": "Supplemental Disclosures to Consolidated Statements of Cash Flows (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R27": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2304301 - Disclosure - Acquisition (Tables)", "role": "http://www.gci.net/role/AcquisitionTables", "shortName": "Acquisition (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R28": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueByBalanceSheetGroupingTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2305301 - Disclosure - Assets and Liabilities Measured at Fair Value (Tables)", "role": "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueTables", "shortName": "Assets and Liabilities Measured at Fair Value (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FairValueByBalanceSheetGroupingTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R29": { "firstAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:TradingSecuritiesAndCertainTradingAssetsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2306301 - Disclosure - Investments in Equity Securities (Tables)", "role": "http://www.gci.net/role/InvestmentsInEquitySecuritiesTables", "shortName": "Investments in Equity Securities (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:TradingSecuritiesAndCertainTradingAssetsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R3": { "firstAnchor": null, "groupType": "statement", "isDefault": "false", "longName": "1001501 - Statement - Consolidated Balance Sheets (Parentheticals)", "role": "http://www.gci.net/role/ConsolidatedBalanceSheetsParentheticals", "shortName": "Consolidated Balance Sheets (Parentheticals)", "subGroupType": "parenthetical", "uniqueAnchor": null }, "R30": { "firstAnchor": { "ancestors": [ "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EquityMethodInvestmentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2307301 - Disclosure - Investments in Affiliates Accounted for Using the Equity Method (Tables)", "role": "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodTables", "shortName": "Investments in Affiliates Accounted for Using the Equity Method (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:EquityMethodInvestmentsTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R31": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfGoodwillTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2308301 - Disclosure - Goodwill and Intangible Assets (Tables)", "role": "http://www.gci.net/role/GoodwillAndIntangibleAssetsTables", "shortName": "Goodwill and Intangible Assets (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfGoodwillTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R32": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDebtTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2309301 - Disclosure - Debt (Tables)", "role": "http://www.gci.net/role/DebtTables", "shortName": "Debt (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfDebtTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R33": { "firstAnchor": { "ancestors": [ "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LeaseCostTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2310301 - Disclosure - Leases (Tables)", "role": "http://www.gci.net/role/LeasesTables", "shortName": "Leases (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:LeaseCostTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R34": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2311301 - Disclosure - Income Taxes (Tables)", "role": "http://www.gci.net/role/IncomeTaxesTables", "shortName": "Income Taxes (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R35": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfVariableInterestEntitiesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2313301 - Disclosure - Variable Interest Entities (Tables)", "role": "http://www.gci.net/role/VariableInterestEntitiesTables", "shortName": "Variable Interest Entities (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfVariableInterestEntitiesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R36": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2314301 - Disclosure - Stock-Based Compensation (Tables)", "role": "http://www.gci.net/role/StockBasedCompensationTables", "shortName": "Stock-Based Compensation (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R37": { "firstAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2317301 - Disclosure - Information About the Company's Operating Segments (Tables)", "role": "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsTables", "shortName": "Information About the Company's Operating Segments (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R38": { "firstAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2318301 - Disclosure - Quarterly Financial Information (Unaudited) (Tables)", "role": "http://www.gci.net/role/QuarterlyFinancialInformationUnauditedTables", "shortName": "Quarterly Financial Information (Unaudited) (Tables)", "subGroupType": "tables", "uniqueAnchor": { "ancestors": [ "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R39": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD_srt_CounterpartyNameAxis_gcillc_LibertyMediaCorporationMember_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_srt_AffiliatedEntityMember", "decimals": "-5", "first": true, "lang": null, "name": "gcillc:ReimbursableExpensesDueToAffiliate", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2401401 - Disclosure - Basis of Presentation (Details)", "role": "http://www.gci.net/role/BasisOfPresentationDetails", "shortName": "Basis of Presentation (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD_srt_CounterpartyNameAxis_gcillc_LibertyMediaCorporationMember_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_srt_AffiliatedEntityMember", "decimals": "-5", "first": true, "lang": null, "name": "gcillc:ReimbursableExpensesDueToAffiliate", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R4": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1002000 - Statement - Consolidated Statements of Operations", "role": "http://www.gci.net/role/ConsolidatedStatementsOfOperations", "shortName": "Consolidated Statements of Operations", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "lang": null, "name": "us-gaap:OtherCostAndExpenseOperating", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R40": { "firstAnchor": { "ancestors": [ "span", "span", "div", "us-gaap:ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "gcillc:AccountsReceivableThresholdPeriodForAllowanceForDoubtfulAccounts", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2402403 - Disclosure - Summary of Significant Accounting Principles (Accounts Receivable and Allowance for Doubtful Receivables) (Details)", "role": "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAccountsReceivableAndAllowanceForDoubtfulReceivablesDetails", "shortName": "Summary of Significant Accounting Principles (Accounts Receivable and Allowance for Doubtful Receivables) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "us-gaap:ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "gcillc:AccountsReceivableThresholdPeriodForAllowanceForDoubtfulAccounts", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R41": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:PropertyPlantAndEquipmentTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2018Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:PropertyPlantAndEquipmentGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2402404 - Disclosure - Summary of Significant Accounting Principles (Property and Equipment) (Details)", "role": "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails", "shortName": "Summary of Significant Accounting Principles (Property and Equipment) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:PropertyPlantAndEquipmentTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2018Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:PropertyPlantAndEquipmentGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R42": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2018Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AssetRetirementObligation", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2402405 - Disclosure - Summary of Significant Accounting Principles (Asset Retirement Obligations) (Details)", "role": "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAssetRetirementObligationsDetails", "shortName": "Summary of Significant Accounting Principles (Asset Retirement Obligations) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2017Q4", "decimals": "-3", "lang": null, "name": "us-gaap:AssetRetirementObligation", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R43": { "firstAnchor": { "ancestors": [ "span", "span", "div", "us-gaap:GoodwillAndIntangibleAssetsPolicyTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD_srt_RangeAxis_srt_MinimumMember", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetUsefulLife", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2402406 - Disclosure - Summary of Significant Accounting Principles (Intangible Assets) (Details)", "role": "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesIntangibleAssetsDetails", "shortName": "Summary of Significant Accounting Principles (Intangible Assets) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "us-gaap:GoodwillAndIntangibleAssetsPolicyTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD_srt_RangeAxis_srt_MinimumMember", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FiniteLivedIntangibleAssetUsefulLife", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R44": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD_srt_ProductOrServiceAxis_gcillc_CertainWirelessDevicesMember", "decimals": null, "first": true, "lang": "en-US", "name": "gcillc:EquipmentInstallmentPlanPaymentTerm", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2402407 - Disclosure - Summary of Significant Accounting Principles (Nature of Services and Products) (Details)", "role": "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesNatureOfServicesAndProductsDetails", "shortName": "Summary of Significant Accounting Principles (Nature of Services and Products) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD_srt_ProductOrServiceAxis_gcillc_CertainWirelessDevicesMember", "decimals": null, "first": true, "lang": "en-US", "name": "gcillc:EquipmentInstallmentPlanPaymentTerm", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R45": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis.domain_2020-01-01", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:RevenueRemainingPerformanceObligation", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2402408 - Disclosure - Summary of Significant Accounting Principles (Remaining Performance Obligations) (Details)", "role": "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesRemainingPerformanceObligationsDetails", "shortName": "Summary of Significant Accounting Principles (Remaining Performance Obligations) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis.domain_2020-01-01", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:RevenueRemainingPerformanceObligation", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R46": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:AccountsReceivableNet", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2402409 - Disclosure - Summary of Significant Accounting Principles (Contract Balances) (Details)", "role": "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesContractBalancesDetails", "shortName": "Summary of Significant Accounting Principles (Contract Balances) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-5", "lang": null, "name": "us-gaap:ContractWithCustomerLiability", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R47": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4_srt_RangeAxis_srt_MaximumMember", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CapitalizedContractCostAmortizationPeriod", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2402410 - Disclosure - Summary of Significant Accounting Principles (Assets Recognized from the Costs to Obtain a Contract with a Customer) (Details)", "role": "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAssetsRecognizedFromCostsToObtainContractWithCustomerDetails", "shortName": "Summary of Significant Accounting Principles (Assets Recognized from the Costs to Obtain a Contract with a Customer) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4_srt_RangeAxis_srt_MaximumMember", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CapitalizedContractCostAmortizationPeriod", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R48": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4QTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2402411 - Disclosure - Summary of Significant Accounting Principles (Disaggregation of Revenue) (Details)", "role": "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails", "shortName": "Summary of Significant Accounting Principles (Disaggregation of Revenue) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:DisaggregationOfRevenueTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD_srt_ProductOrServiceAxis_gcillc_LeaseGrantAndRevenueFromSubsidiesMember", "decimals": "-3", "lang": null, "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R49": { "firstAnchor": { "ancestors": [ "span", "span", "ix:continuation", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD_us-gaap_RegulatoryAgencyAxis_gcillc_UsfProgramMember", "decimals": "2", "first": true, "lang": null, "name": "gcillc:PublicUtilitiesRevenueSupportFromRegulatoryAgencyPercentage", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2402412 - Disclosure - Summary of Significant Accounting Principles (Universal Service Fund) (Details)", "role": "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesUniversalServiceFundDetails", "shortName": "Summary of Significant Accounting Principles (Universal Service Fund) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "ix:continuation", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD_us-gaap_RegulatoryAgencyAxis_gcillc_UsfProgramMember", "decimals": "2", "first": true, "lang": null, "name": "gcillc:PublicUtilitiesRevenueSupportFromRegulatoryAgencyPercentage", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R5": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ProfitLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1005000 - Statement - Consolidated Statements of Cash Flows", "role": "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows", "shortName": "Consolidated Statements of Cash Flows", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "lang": null, "name": "us-gaap:ShareBasedCompensation", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R50": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "gcillc:ReconciliationOfAdjustedOperatingIncomeBeforeDepreciationAndAmortizationToIncomeLossFromContinuingOperationsBeforeIncomeTaxesTableTextBlock", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:AllocatedShareBasedCompensationExpense", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2402413 - Disclosure - Summary of Significant Accounting Principles (Stock-Based Compensation) (Details)", "role": "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesStockBasedCompensationDetails", "shortName": "Summary of Significant Accounting Principles (Stock-Based Compensation) (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R51": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2403402 - Disclosure - Supplemental Disclosures to Consolidated Statements of Cash Flows (Supplemental Cash Flow Information) (Details)", "role": "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails", "shortName": "Supplemental Disclosures to Consolidated Statements of Cash Flows (Supplemental Cash Flow Information) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R52": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2403403 - Disclosure - Supplemental Disclosures to Consolidated Statements of Cash Flows (Cash, Cash Equivalents and Restricted Cash) (Details)", "role": "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsCashCashEquivalentsAndRestrictedCashDetails", "shortName": "Supplemental Disclosures to Consolidated Statements of Cash Flows (Cash, Cash Equivalents and Restricted Cash) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfCashAndCashEquivalentsTableTextBlock", "us-gaap:ScheduleOfRestrictedCashAndCashEquivalentsTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2017Q4", "decimals": "-3", "lang": null, "name": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R53": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2018Q4YTD_dei_LegalEntityAxis_gcillc_GCILibertyMember", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2404402 - Disclosure - Acquisition (Narrative) (Details)", "role": "http://www.gci.net/role/AcquisitionNarrativeDetails", "shortName": "Acquisition (Narrative) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2018Q4YTD_dei_LegalEntityAxis_gcillc_GCILibertyMember", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R54": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfGoodwillTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:Goodwill", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2404403 - Disclosure - Acquisition (Preliminary Purchase Price Allocation) (Details)", "role": "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails", "shortName": "Acquisition (Preliminary Purchase Price Allocation) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "I2018Q1Mar9_dei_LegalEntityAxis_gcillc_HoldCoMember_us-gaap_BusinessAcquisitionAxis_gcillc_GCILibertyMember", "decimals": "-3", "lang": null, "name": "us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R55": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2018Q4YTD_dei_LegalEntityAxis_gcillc_HoldCoMember_us-gaap_BusinessAcquisitionAxis_gcillc_GCILibertyMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:BusinessAcquisitionsProFormaRevenue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2404404 - Disclosure - Acquisition (Pro Forma Revenue and Net Earnings) (Details)", "role": "http://www.gci.net/role/AcquisitionProFormaRevenueAndNetEarningsDetails", "shortName": "Acquisition (Pro Forma Revenue and Net Earnings) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2018Q4YTD_dei_LegalEntityAxis_gcillc_HoldCoMember_us-gaap_BusinessAcquisitionAxis_gcillc_GCILibertyMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:BusinessAcquisitionsProFormaRevenue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R56": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:FairValueByBalanceSheetGroupingTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CashAndCashEquivalentsFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2405402 - Disclosure - Assets and Liabilities Measured at Fair Value (Schedule of Assets and Liabilities) (Details)", "role": "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfAssetsAndLiabilitiesDetails", "shortName": "Assets and Liabilities Measured at Fair Value (Schedule of Assets and Liabilities) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:FairValueByBalanceSheetGroupingTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CashAndCashEquivalentsFairValueDisclosure", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R57": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "I2017Q2June6_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_gcillc_LendingTreeMember", "decimals": "INF", "first": true, "lang": null, "name": "gcillc:EquityMethodInvestmentNumberofSharesPurchased", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2405403 - Disclosure - Assets and Liabilities Measured at Fair Value (Narrative) (Details)", "role": "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueNarrativeDetails", "shortName": "Assets and Liabilities Measured at Fair Value (Narrative) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "I2017Q2June6_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_gcillc_LendingTreeMember", "decimals": "INF", "first": true, "lang": null, "name": "gcillc:EquityMethodInvestmentNumberofSharesPurchased", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R58": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:GainLossOnInvestmentsTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:EquitySecuritiesFvNiGainLoss", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2405404 - Disclosure - Assets and Liabilities Measured at Fair Value (Schedule of Realized and Unrealized Gains (Losses)) (Details)", "role": "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfRealizedAndUnrealizedGainsLossesDetails", "shortName": "Assets and Liabilities Measured at Fair Value (Schedule of Realized and Unrealized Gains (Losses)) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:GainLossOnInvestmentsTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:EquitySecuritiesFvNiGainLoss", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R59": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "us-gaap:TradingSecuritiesAndCertainTradingAssetsTextBlock", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "gcillc:EquitySecuritiesNoncurrent", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2406402 - Disclosure - Investments in Equity Securities (Details)", "role": "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails", "shortName": "Investments in Equity Securities (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "us-gaap:TradingSecuritiesAndCertainTradingAssetsTextBlock", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4_us-gaap_InvestmentTypeAxis_gcillc_CharterCommunicationsIncMember", "decimals": "-3", "lang": null, "name": "gcillc:EquitySecuritiesNoncurrent", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R6": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2016Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "statement", "isDefault": "false", "longName": "1007000 - Statement - Consolidated Statement of Equity", "role": "http://www.gci.net/role/ConsolidatedStatementOfEquity", "shortName": "Consolidated Statement of Equity", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2016Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R60": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:EquityMethodInvestments", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2407402 - Disclosure - Investments in Affiliates Accounted for Using the Equity Method (Investment in Lending Tree) (Details)", "role": "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLendingTreeDetails", "shortName": "Investments in Affiliates Accounted for Using the Equity Method (Investment in Lending Tree) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_gcillc_LendingTreeMember", "decimals": "3", "lang": null, "name": "us-gaap:EquityMethodInvestmentOwnershipPercentage", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R61": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:EquityMethodInvestments", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2407403 - Disclosure - Investments in Affiliates Accounted for Using the Equity Method (Investment in Liberty Broadband) (Details)", "role": "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails", "shortName": "Investments in Affiliates Accounted for Using the Equity Method (Investment in Liberty Broadband) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "D2016Q2May18_dei_LegalEntityAxis_gcillc_CharterCommunicationsIncMember_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassAMember", "decimals": "INF", "lang": null, "name": "gcillc:BusinessCombinationSharesExchangeRatio", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R62": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:EquityMethodInvestments", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2407404 - Disclosure - Investments in Affiliates Accounted for Using the Equity Method (Summary of Financial Information) (Details)", "role": "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails", "shortName": "Investments in Affiliates Accounted for Using the Equity Method (Summary of Financial Information) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4_dei_LegalEntityAxis_gcillc_LibertyBroadbandMember", "decimals": "-3", "lang": null, "name": "us-gaap:EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R63": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2018Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:Goodwill", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2408402 - Disclosure - Goodwill and Intangible Assets (Rollforward) (Details)", "role": "http://www.gci.net/role/GoodwillAndIntangibleAssetsRollforwardDetails", "shortName": "Goodwill and Intangible Assets (Rollforward) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfGoodwillTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2018Q4YTD", "decimals": "-3", "lang": null, "name": "us-gaap:GoodwillAcquiredDuringPeriod", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R64": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FiniteLivedIntangibleAssetsGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2408403 - Disclosure - Goodwill and Intangible Assets (Intangible Assets Subject to Amortization) (Details)", "role": "http://www.gci.net/role/GoodwillAndIntangibleAssetsIntangibleAssetsSubjectToAmortizationDetails", "shortName": "Goodwill and Intangible Assets (Intangible Assets Subject to Amortization) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FiniteLivedIntangibleAssetsGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R65": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:AmortizationOfIntangibleAssets", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2408404 - Disclosure - Goodwill and Intangible Assets (5 Year Future Amortization) (Details)", "role": "http://www.gci.net/role/GoodwillAndIntangibleAssets5YearFutureAmortizationDetails", "shortName": "Goodwill and Intangible Assets (5 Year Future Amortization) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:AmortizationOfIntangibleAssets", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R66": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfGoodwillTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:GoodwillImpairmentLoss", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2408405 - Disclosure - Goodwill and Intangible Assets (Narrative) (Details)", "role": "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails", "shortName": "Goodwill and Intangible Assets (Narrative) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4_us-gaap_StatementBusinessSegmentsAxis_us-gaap_CorporateAndOtherMember", "decimals": "-5", "lang": null, "name": "us-gaap:GoodwillImpairedAccumulatedImpairmentLoss", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R67": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfDebtTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DebtInstrumentFaceAmount", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2409402 - Disclosure - Debt (Summary of Debt) (Details)", "role": "http://www.gci.net/role/DebtSummaryOfDebtDetails", "shortName": "Debt (Summary of Debt) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfDebtTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "lang": null, "name": "us-gaap:DeferredFinanceCostsNet", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R68": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "D2018Q1Mar09", "decimals": "-8", "first": true, "lang": null, "name": "gcillc:ContributionsFromDistributionsToFormerParent", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2409403 - Disclosure - Debt (Margin Loan) (Details)", "role": "http://www.gci.net/role/DebtMarginLoanDetails", "shortName": "Debt (Margin Loan) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "I2018Q4Oct5_dei_LegalEntityAxis_gcillc_BroadbandHoldcoLLCMember_us-gaap_CreditFacilityAxis_us-gaap_RevolvingCreditFacilityMember", "decimals": "-5", "lang": null, "name": "us-gaap:LineOfCredit", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R69": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfDebtTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DebtInstrumentFaceAmount", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2409404 - Disclosure - Debt (Senior Notes) (Details)", "role": "http://www.gci.net/role/DebtSeniorNotesDetails", "shortName": "Debt (Senior Notes) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4_us-gaap_LongtermDebtTypeAxis_us-gaap_SeniorNotesMember", "decimals": "-5", "lang": null, "name": "us-gaap:DebtInstrumentUnamortizedPremium", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R7": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2101100 - Disclosure - Basis of Presentation", "role": "http://www.gci.net/role/BasisOfPresentation", "shortName": "Basis of Presentation", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R70": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "I2019Q4Nov-25_us-gaap_CreditFacilityAxis_us-gaap_RevolvingCreditFacilityMember", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:LineOfCredit", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2409405 - Disclosure - Debt (Senior Credit Facility) (Details)", "role": "http://www.gci.net/role/DebtSeniorCreditFacilityDetails", "shortName": "Debt (Senior Credit Facility) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4_us-gaap_CreditFacilityAxis_gcillc_TermLoanBMember_us-gaap_LongtermDebtTypeAxis_us-gaap_MediumTermNotesMember", "decimals": "INF", "lang": null, "name": "us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R71": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD_us-gaap_LongtermDebtTypeAxis_us-gaap_NotesPayableToBanksMember_us-gaap_VariableRateAxis_us-gaap_LondonInterbankOfferedRateLIBORMember", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:DebtInstrumentBasisSpreadOnVariableRate1", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2409406 - Disclosure - Debt (Wells Fargo Note Payable) (Details)", "role": "http://www.gci.net/role/DebtWellsFargoNotePayableDetails", "shortName": "Debt (Wells Fargo Note Payable) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD_us-gaap_LongtermDebtTypeAxis_us-gaap_NotesPayableToBanksMember_us-gaap_VariableRateAxis_us-gaap_LondonInterbankOfferedRateLIBORMember", "decimals": "INF", "first": true, "lang": null, "name": "us-gaap:DebtInstrumentBasisSpreadOnVariableRate1", "reportCount": 1, "unique": true, "unitRef": "number", "xsiNil": "false" } }, "R72": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2409407 - Disclosure - Debt (Five Year Maturities) (Details)", "role": "http://www.gci.net/role/DebtFiveYearMaturitiesDetails", "shortName": "Debt (Five Year Maturities) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R73": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4_us-gaap_LongtermDebtTypeAxis_us-gaap_SeniorNotesMember", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:DebtInstrumentFairValue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2409408 - Disclosure - Debt (Fair Value of Debt) (Details)", "role": "http://www.gci.net/role/DebtFairValueOfDebtDetails", "shortName": "Debt (Fair Value of Debt) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4_us-gaap_LongtermDebtTypeAxis_us-gaap_SeniorNotesMember", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:DebtInstrumentFairValue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R74": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "gcillc:AssetsAndLiabilitiesLesseeTableTextBlock", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:OperatingLeaseRightOfUseAsset", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2410402 - Disclosure - Leases (Narrative) (Details)", "role": "http://www.gci.net/role/LeasesNarrativeDetails", "shortName": "Leases (Narrative) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-5", "lang": null, "name": "gcillc:IncreaseDecreaseInFinanceLeaseLiability", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R75": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:OperatingLeaseCost", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2410403 - Disclosure - Leases (Lease Expense) (Details)", "role": "http://www.gci.net/role/LeasesLeaseExpenseDetails", "shortName": "Leases (Lease Expense) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:OperatingLeaseCost", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R76": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FinanceLeaseWeightedAverageRemainingLeaseTerm1", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2410404 - Disclosure - Leases (Weighted Average Term and Discount Rate) (Details)", "role": "http://www.gci.net/role/LeasesWeightedAverageTermAndDiscountRateDetails", "shortName": "Leases (Weighted Average Term and Discount Rate) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:FinanceLeaseWeightedAverageRemainingLeaseTerm1", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R77": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "gcillc:AssetsAndLiabilitiesLesseeTableTextBlock", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:OperatingLeaseRightOfUseAsset", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2410405 - Disclosure - Leases (Supplemental Balance Sheet Information) (Details)", "role": "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails", "shortName": "Leases (Supplemental Balance Sheet Information) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "gcillc:AssetsAndLiabilitiesLesseeTableTextBlock", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "lang": null, "name": "gcillc:FinanceLeaseRightofUseAssetGross", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R78": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:LeaseCostTableTextBlock", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:OperatingLeasePayments", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2410406 - Disclosure - Leases (Supplemental Cash Flow Information) (Details)", "role": "http://www.gci.net/role/LeasesSupplementalCashFlowInformationDetails", "shortName": "Leases (Supplemental Cash Flow Information) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:LeaseCostTableTextBlock", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:OperatingLeasePayments", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R79": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "us-gaap:ScheduleOfSaleLeasebackTransactionsTextBlock", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "us-gaap:FinanceLeaseLiabilityMaturityTableTextBlock", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2410407 - Disclosure - Leases (Future Lease Payments) (Details)", "role": "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails", "shortName": "Leases (Future Lease Payments) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "us-gaap:ScheduleOfSaleLeasebackTransactionsTextBlock", "us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "us-gaap:FinanceLeaseLiabilityMaturityTableTextBlock", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:FinanceLeaseLiabilityPaymentsDueNextTwelveMonths", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R8": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2102100 - Disclosure - Summary of Significant Accounting Principles", "role": "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciples", "shortName": "Summary of Significant Accounting Principles", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:SignificantAccountingPoliciesTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R80": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "D2018Q1Mar09", "decimals": "-8", "first": true, "lang": null, "name": "gcillc:ContributionsFromDistributionsToFormerParent", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2411402 - Disclosure - Income Taxes (Narrative) (Details)", "role": "http://www.gci.net/role/IncomeTaxesNarrativeDetails", "shortName": "Income Taxes (Narrative) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "lang": null, "name": "us-gaap:ValuationAllowanceDeferredTaxAssetChangeInAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R81": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CurrentFederalTaxExpenseBenefit", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2411403 - Disclosure - Income Taxes (Schedule of Income Tax Benefit (Expense)) (Details)", "role": "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails", "shortName": "Income Taxes (Schedule of Income Tax Benefit (Expense)) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CurrentFederalTaxExpenseBenefit", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R82": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2411404 - Disclosure - Income Taxes (Statutory Tax Rate Impact on Income Tax Expense) (Details)", "role": "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails", "shortName": "Income Taxes (Statutory Tax Rate Impact on Income Tax Expense) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R83": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DeferredTaxAssetsOperatingLossCarryforwards", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2411405 - Disclosure - Income Taxes (Deferred Tax Assets and Liabilities) (Details)", "role": "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails", "shortName": "Income Taxes (Deferred Tax Assets and Liabilities) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:DeferredTaxAssetsOperatingLossCarryforwards", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R84": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfCashAndCashEquivalentsTableTextBlock", "us-gaap:ScheduleOfRestrictedCashAndCashEquivalentsTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:RestrictedCashAndCashEquivalents", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2413402 - Disclosure - Variable Interest Entities (Narrative) (Details)", "role": "http://www.gci.net/role/VariableInterestEntitiesNarrativeDetails", "shortName": "Variable Interest Entities (Narrative) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-5", "lang": null, "name": "us-gaap:GuaranteeObligationsCurrentCarryingValue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R85": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfVariableInterestEntitiesTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "D2019Q4Oct02-022019_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:VariableInterestEntityFinancialOrOtherSupportAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2413403 - Disclosure - Variable Interest Entities (Summary of Key Terms of NMTC Transactions) (Details)", "role": "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails", "shortName": "Variable Interest Entities (Summary of Key Terms of NMTC Transactions) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ScheduleOfVariableInterestEntitiesTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "D2019Q4Oct02-022019_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:VariableInterestEntityFinancialOrOtherSupportAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R86": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2018Q4YTD_srt_RangeAxis_srt_MinimumMember", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1", "reportCount": 1, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2414402 - Disclosure - Stock-Based Compensation (Incentive Plan) (Details)", "role": "http://www.gci.net/role/StockBasedCompensationIncentivePlanDetails", "shortName": "Stock-Based Compensation (Incentive Plan) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2018Q4YTD_srt_RangeAxis_srt_MinimumMember", "decimals": null, "lang": "en-US", "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R87": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2414403 - Disclosure - Stock-Based Compensation (Grants of Stock Options) (Details)", "role": "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "shortName": "Stock-Based Compensation (Grants of Stock Options) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD_srt_TitleOfIndividualAxis_gcillc_DirectorsAndEmployeesMember_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassAMember", "decimals": "-3", "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R88": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2018Q4_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassAMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2414404 - Disclosure - Stock-Based Compensation (Schedule of Outstanding Awards) (Details)", "role": "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails", "shortName": "Stock-Based Compensation (Schedule of Outstanding Awards) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2018Q4_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassAMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R89": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassAMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CommonStockCapitalSharesReservedForFutureIssuance", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2414405 - Disclosure - Stock-Based Compensation (Outstanding Awards) (Details)", "role": "http://www.gci.net/role/StockBasedCompensationOutstandingAwardsDetails", "shortName": "Stock-Based Compensation (Outstanding Awards) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4_us-gaap_StatementClassOfStockAxis_us-gaap_CommonClassAMember", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:CommonStockCapitalSharesReservedForFutureIssuance", "reportCount": 1, "unique": true, "unitRef": "shares", "xsiNil": "false" } }, "R9": { "firstAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CashFlowSupplementalDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2103100 - Disclosure - Supplemental Disclosures to Consolidated Statements of Cash Flows", "role": "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlows", "shortName": "Supplemental Disclosures to Consolidated Statements of Cash Flows", "subGroupType": "", "uniqueAnchor": { "ancestors": [ "span", "div", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": null, "first": true, "lang": "en-US", "name": "us-gaap:CashFlowSupplementalDisclosuresTextBlock", "reportCount": 1, "unique": true, "unitRef": null, "xsiNil": "false" } }, "R90": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2414406 - Disclosure - Stock-Based Compensation (Exercises) (Details)", "role": "http://www.gci.net/role/StockBasedCompensationExercisesDetails", "shortName": "Stock-Based Compensation (Exercises) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2017Q4YTD_us-gaap_PlanNameAxis_gcillc_OptionExchangeMember", "decimals": "-5", "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R91": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "2", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2414407 - Disclosure - Stock-Based Compensation (Restricted Shares) (Details)", "role": "http://www.gci.net/role/StockBasedCompensationRestrictedSharesDetails", "shortName": "Stock-Based Compensation (Restricted Shares) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "2", "first": true, "lang": null, "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue", "reportCount": 1, "unique": true, "unitRef": "usdPerShare", "xsiNil": "false" } }, "R92": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2415401 - Disclosure - Employee Benefit Plans (Details)", "role": "http://www.gci.net/role/EmployeeBenefitPlansDetails", "shortName": "Employee Benefit Plans (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R93": { "firstAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-5", "first": true, "lang": null, "name": "us-gaap:AccountsReceivableNet", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2416401 - Disclosure - Commitments and Contingencies (Rural Health Care Program) (Details)", "role": "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "shortName": "Commitments and Contingencies (Rural Health Care Program) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4QTD_srt_MajorCustomersAxis_gcillc_RuralHealthCareCustomersMember", "decimals": "-5", "lang": null, "name": "us-gaap:LossOnContracts", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R94": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4QTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2417402 - Disclosure - Information About the Company's Operating Segments (Performance Measures) (Details)", "role": "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsPerformanceMeasuresDetails", "shortName": "Information About the Company's Operating Segments (Performance Measures) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD_srt_ConsolidationItemsAxis_us-gaap_OperatingSegmentsMember", "decimals": "-3", "lang": null, "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R95": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:Assets", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2417403 - Disclosure - Information About the Company's Operating Segments (Other Information) (Details)", "role": "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsOtherInformationDetails", "shortName": "Information About the Company's Operating Segments (Other Information) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FI2019Q4", "decimals": "-3", "lang": null, "name": "gcillc:CapitalExpenditures", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } }, "R96": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "us-gaap:ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock", "ix:continuation", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4YTD", "decimals": "-3", "first": true, "lang": null, "name": "gcillc:AdjustedOperatingIncomeLossBeforeDepreciationAndAmortization", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2417404 - Disclosure - Information About the Company's Operating Segments (Reconciliation of Segment Adjusted OIBDA to Operating Income and Earnings (Loss) from Continuing Operations Before Income Taxes) (Details)", "role": "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails", "shortName": "Information About the Company's Operating Segments (Reconciliation of Segment Adjusted OIBDA to Operating Income and Earnings (Loss) from Continuing Operations Before Income Taxes) (Details)", "subGroupType": "details", "uniqueAnchor": null }, "R97": { "firstAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4QTD", "decimals": "-3", "first": true, "lang": null, "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax", "reportCount": 1, "unitRef": "usd", "xsiNil": "false" }, "groupType": "disclosure", "isDefault": "false", "longName": "2418402 - Disclosure - Quarterly Financial Information (Unaudited) (Details)", "role": "http://www.gci.net/role/QuarterlyFinancialInformationUnauditedDetails", "shortName": "Quarterly Financial Information (Unaudited) (Details)", "subGroupType": "details", "uniqueAnchor": { "ancestors": [ "span", "span", "div", "td", "tr", "table", "div", "div", "ix:continuation", "us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock", "div", "body", "html" ], "baseRef": "llc10k12-31x2019.htm", "contextRef": "FD2019Q4QTD", "decimals": "-3", "lang": null, "name": "us-gaap:ProfitLoss", "reportCount": 1, "unique": true, "unitRef": "usd", "xsiNil": "false" } } }, "segmentCount": 122, "tag": { "dei_AmendmentFlag": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.", "label": "Amendment Flag", "terseLabel": "Amendment Flag" } } }, "localname": "AmendmentFlag", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_CityAreaCode": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Area code of city", "label": "City Area Code", "terseLabel": "City Area Code" } } }, "localname": "CityAreaCode", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_CoverAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Cover page.", "label": "Cover page." } } }, "localname": "CoverAbstract", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "xbrltype": "stringItemType" }, "dei_CurrentFiscalYearEndDate": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "End date of current fiscal year in the format --MM-DD.", "label": "Current Fiscal Year End Date", "terseLabel": "Current Fiscal Year End Date" } } }, "localname": "CurrentFiscalYearEndDate", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "gMonthDayItemType" }, "dei_DocumentAnnualReport": { "auth_ref": [ "r482" ], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true only for a form used as an annual report.", "label": "Document Annual Report", "terseLabel": "Document Annual Report" } } }, "localname": "DocumentAnnualReport", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "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", "terseLabel": "Document Fiscal Period Focus" } } }, "localname": "DocumentFiscalPeriodFocus", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "fiscalPeriodItemType" }, "dei_DocumentFiscalYearFocus": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.", "label": "Document Fiscal Year Focus", "terseLabel": "Document Fiscal Year Focus" } } }, "localname": "DocumentFiscalYearFocus", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "gYearItemType" }, "dei_DocumentPeriodEndDate": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.", "label": "Document Period End Date", "terseLabel": "Document Period End Date" } } }, "localname": "DocumentPeriodEndDate", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "dateItemType" }, "dei_DocumentTransitionReport": { "auth_ref": [ "r481" ], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true only for a form used as a transition report.", "label": "Document Transition Report", "terseLabel": "Document Transition Report" } } }, "localname": "DocumentTransitionReport", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_DocumentType": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.", "label": "Document Type", "terseLabel": "Document Type" } } }, "localname": "DocumentType", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "submissionTypeItemType" }, "dei_EntityAddressAddressLine1": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Address Line 1 such as Attn, Building Name, Street Name", "label": "Entity Address, Address Line One", "terseLabel": "Entity Address, Address Line One" } } }, "localname": "EntityAddressAddressLine1", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressCityOrTown": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Name of the City or Town", "label": "Entity Address, City or Town", "terseLabel": "Entity Address, City or Town" } } }, "localname": "EntityAddressCityOrTown", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressPostalZipCode": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Code for the postal or zip code", "label": "Entity Address, Postal Zip Code", "terseLabel": "Entity Address, Postal Zip Code" } } }, "localname": "EntityAddressPostalZipCode", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityAddressStateOrProvince": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Name of the state or province.", "label": "Entity Address, State or Province", "terseLabel": "Entity Address, State or Province" } } }, "localname": "EntityAddressStateOrProvince", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "stateOrProvinceItemType" }, "dei_EntityCentralIndexKey": { "auth_ref": [ "r483" ], "lang": { "en-US": { "role": { "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.", "label": "Entity Central Index Key", "terseLabel": "Entity Central Index Key" } } }, "localname": "EntityCentralIndexKey", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "centralIndexKeyItemType" }, "dei_EntityCommonStockSharesOutstanding": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.", "label": "Entity Common Stock, Shares Outstanding", "terseLabel": "Entity Common Stock, Shares Outstanding" } } }, "localname": "EntityCommonStockSharesOutstanding", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "sharesItemType" }, "dei_EntityCurrentReportingStatus": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.", "label": "Entity Current Reporting Status", "terseLabel": "Entity Current Reporting Status" } } }, "localname": "EntityCurrentReportingStatus", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "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]", "terseLabel": "Entity [Domain]" } } }, "localname": "EntityDomain", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails", "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails", "http://www.gci.net/role/AcquisitionProFormaRevenueAndNetEarningsDetails", "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails", "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails", "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "domainItemType" }, "dei_EntityEmergingGrowthCompany": { "auth_ref": [ "r483" ], "lang": { "en-US": { "role": { "documentation": "Indicate if registrant meets the emerging growth company criteria.", "label": "Entity Emerging Growth Company", "terseLabel": "Entity Emerging Growth Company" } } }, "localname": "EntityEmergingGrowthCompany", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_EntityExTransitionPeriod": { "auth_ref": [ "r485" ], "lang": { "en-US": { "role": { "documentation": "Indicate if an emerging growth company has elected not to use the extended transition period for complying with any new or revised financial accounting standards.", "label": "Entity Ex Transition Period", "terseLabel": "Entity Ex Transition Period" } } }, "localname": "EntityExTransitionPeriod", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_EntityFileNumber": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.", "label": "Entity File Number", "terseLabel": "Entity File Number" } } }, "localname": "EntityFileNumber", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "fileNumberItemType" }, "dei_EntityFilerCategory": { "auth_ref": [ "r483" ], "lang": { "en-US": { "role": { "documentation": "Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.", "label": "Entity Filer Category", "terseLabel": "Entity Filer Category" } } }, "localname": "EntityFilerCategory", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "filerCategoryItemType" }, "dei_EntityIncorporationStateCountryCode": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Two-character EDGAR code representing the state or country of incorporation.", "label": "Entity Incorporation, State or Country Code", "terseLabel": "Entity Incorporation, State or Country Code" } } }, "localname": "EntityIncorporationStateCountryCode", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "edgarStateCountryItemType" }, "dei_EntityInteractiveDataCurrent": { "auth_ref": [ "r484" ], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).", "label": "Entity Interactive Data Current", "terseLabel": "Entity Interactive Data Current" } } }, "localname": "EntityInteractiveDataCurrent", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "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", "terseLabel": "Entity Public Float" } } }, "localname": "EntityPublicFloat", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "monetaryItemType" }, "dei_EntityRegistrantName": { "auth_ref": [ "r483" ], "lang": { "en-US": { "role": { "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.", "label": "Entity Registrant Name", "terseLabel": "Entity Registrant Name" } } }, "localname": "EntityRegistrantName", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "dei_EntityShellCompany": { "auth_ref": [ "r483" ], "lang": { "en-US": { "role": { "documentation": "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.", "label": "Entity Shell Company", "terseLabel": "Entity Shell Company" } } }, "localname": "EntityShellCompany", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_EntitySmallBusiness": { "auth_ref": [ "r483" ], "lang": { "en-US": { "role": { "documentation": "Indicates that the company is a Smaller Reporting Company (SRC).", "label": "Entity Small Business", "terseLabel": "Entity Small Business" } } }, "localname": "EntitySmallBusiness", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "booleanItemType" }, "dei_EntityTaxIdentificationNumber": { "auth_ref": [ "r483" ], "lang": { "en-US": { "role": { "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.", "label": "Entity Tax Identification Number", "terseLabel": "Entity Tax Identification Number" } } }, "localname": "EntityTaxIdentificationNumber", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "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", "terseLabel": "Entity Voluntary Filers" } } }, "localname": "EntityVoluntaryFilers", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "yesNoItemType" }, "dei_EntityWellKnownSeasonedIssuer": { "auth_ref": [], "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", "terseLabel": "Entity Well-known Seasoned Issuer" } } }, "localname": "EntityWellKnownSeasonedIssuer", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "yesNoItemType" }, "dei_LegalEntityAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The set of legal entities associated with a report.", "label": "Legal Entity [Axis]", "terseLabel": "Legal Entity [Axis]" } } }, "localname": "LegalEntityAxis", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails", "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails", "http://www.gci.net/role/AcquisitionProFormaRevenueAndNetEarningsDetails", "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails", "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails", "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "stringItemType" }, "dei_LocalPhoneNumber": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Local phone number for entity.", "label": "Local Phone Number", "terseLabel": "Local Phone Number" } } }, "localname": "LocalPhoneNumber", "nsuri": "http://xbrl.sec.gov/dei/2019-01-31", "presentation": [ "http://www.gci.net/role/CoverPage" ], "xbrltype": "normalizedStringItemType" }, "gcillc_A1.75ExchangeableDebenturesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "1.75% Exchangeable Debentures [Member]", "label": "1.75% Exchangeable Debentures [Member]", "terseLabel": "1.75% Exchangeable Debentures" } } }, "localname": "A1.75ExchangeableDebenturesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "domainItemType" }, "gcillc_A2018OmnibusIncentivePlanMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "2018 Omnibus Incentive Plan [Member]", "label": "2018 Omnibus Incentive Plan [Member]", "terseLabel": "2018 Omnibus Incentive Plan" } } }, "localname": "A2018OmnibusIncentivePlanMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/StockBasedCompensationIncentivePlanDetails" ], "xbrltype": "domainItemType" }, "gcillc_AccountsReceivableThresholdPeriodForAllowanceForDoubtfulAccounts": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Accounts Receivable, Threshold Period For Allowance For Doubtful Accounts", "label": "Accounts Receivable, Threshold Period For Allowance For Doubtful Accounts", "terseLabel": "Number of days in allowance used n the calculation (greater than)" } } }, "localname": "AccountsReceivableThresholdPeriodForAllowanceForDoubtfulAccounts", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAccountsReceivableAndAllowanceForDoubtfulReceivablesDetails" ], "xbrltype": "durationItemType" }, "gcillc_AdjustedOperatingIncomeLossBeforeDepreciationAndAmortization": { "auth_ref": [], "calculation": { "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails": { "order": 1.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Adjusted Operating Income (Loss) Before Depreciation And Amortization", "label": "Adjusted Operating Income (Loss) Before Depreciation And Amortization", "terseLabel": "Adjusted OIBDA", "verboseLabel": "Adjusted OIBDA" } } }, "localname": "AdjustedOperatingIncomeLossBeforeDepreciationAndAmortization", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsPerformanceMeasuresDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_AggregateAnnualEquityAwardsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Aggregate Annual Equity Awards [Member]", "label": "Aggregate Annual Equity Awards [Member]", "terseLabel": "Aggregate Annual Equity Awards" } } }, "localname": "AggregateAnnualEquityAwardsMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "domainItemType" }, "gcillc_AggregateAnnualTargetcashPerformanceBonusMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Aggregate Annual Target cash Performance Bonus [Member]", "label": "Aggregate Annual Target cash Performance Bonus [Member]", "terseLabel": "Aggregate Annual Target cash Performance Bonus" } } }, "localname": "AggregateAnnualTargetcashPerformanceBonusMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "domainItemType" }, "gcillc_AnnualBasedSalaryMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Annual Based Salary [Member]", "label": "Annual Based Salary [Member]", "terseLabel": "Annual Based Salary" } } }, "localname": "AnnualBasedSalaryMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "domainItemType" }, "gcillc_AssetRetirementObligationLiabilitiesAcquired": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Asset Retirement Obligation, Liabilities Acquired", "label": "Asset Retirement Obligation, Liabilities Acquired", "terseLabel": "Liability acquired" } } }, "localname": "AssetRetirementObligationLiabilitiesAcquired", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAssetRetirementObligationsDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_AssetsAndLiabilitiesLesseeTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Assets And Liabilities, Lessee [Table Text Block]", "label": "Assets And Liabilities, Lessee [Table Text Block]", "terseLabel": "Supplemental Balance Sheet Information" } } }, "localname": "AssetsAndLiabilitiesLesseeTableTextBlock", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "gcillc_AssetsHeldUnderFinanceLeasesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Assets Held Under Finance Leases [Member]", "label": "Assets Held Under Finance Leases [Member]", "terseLabel": "Assets Held Under Finance Leases" } } }, "localname": "AssetsHeldUnderFinanceLeasesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails" ], "xbrltype": "domainItemType" }, "gcillc_AssetsUnderFinanceLeasesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Assets Under Finance Leases [Member]", "label": "Assets Under Finance Leases [Member]", "terseLabel": "Property and equipment under finance leases" } } }, "localname": "AssetsUnderFinanceLeasesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "gcillc_BroadbandHoldcoLLCMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Broadband Holdco, LLC [Member]", "label": "Broadband Holdco, LLC [Member]", "terseLabel": "Broadband Holdco, LLC" } } }, "localname": "BroadbandHoldcoLLCMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/DebtMarginLoanDetails" ], "xbrltype": "domainItemType" }, "gcillc_BusinessAcquisitionProFormaNetIncomeLossAttributableToCommonShareholders": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Business Acquisition, Pro Forma Net Income (Loss) Attributable To Common Shareholders", "label": "Business Acquisition, Pro Forma Net Income (Loss) Attributable To Common Shareholders", "terseLabel": "Net earnings (loss) attributable to GCI, LLC member" } } }, "localname": "BusinessAcquisitionProFormaNetIncomeLossAttributableToCommonShareholders", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/AcquisitionProFormaRevenueAndNetEarningsDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_BusinessCombinationSharesExchangeRatio": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Business Combination, Shares, Exchange Ratio", "label": "Business Combination, Shares, Exchange Ratio", "terseLabel": "Share exchange ratio" } } }, "localname": "BusinessCombinationSharesExchangeRatio", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails" ], "xbrltype": "pureItemType" }, "gcillc_BusinessMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Business [Member]", "label": "Business [Member]", "terseLabel": "Business Revenue" } } }, "localname": "BusinessMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails" ], "xbrltype": "domainItemType" }, "gcillc_CableCertificatesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Cable Certificates [Member]", "label": "Cable Certificates [Member]", "terseLabel": "Cable certificates" } } }, "localname": "CableCertificatesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails" ], "xbrltype": "domainItemType" }, "gcillc_CableTransmissionEquipmentandDistributionFacilitiesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Cable Transmission Equipment and Distribution Facilities", "label": "Cable Transmission Equipment and Distribution Facilities [Member]", "terseLabel": "Cable transmission equipment and distribution facilities" } } }, "localname": "CableTransmissionEquipmentandDistributionFacilitiesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "gcillc_CapitalExpenditures": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Capital Expenditures", "label": "Capital Expenditures", "terseLabel": "Capital expenditures" } } }, "localname": "CapitalExpenditures", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsOtherInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_CertainWirelessDevicesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Certain Wireless Devices [Member]", "label": "Certain Wireless Devices [Member]", "terseLabel": "Certain Wireless Devices" } } }, "localname": "CertainWirelessDevicesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesNatureOfServicesAndProductsDetails" ], "xbrltype": "domainItemType" }, "gcillc_CharterCommunicationsIncMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Charter Communications Inc [Member]", "label": "Charter Communications Inc [Member]", "terseLabel": "Charter" } } }, "localname": "CharterCommunicationsIncMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails", "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "domainItemType" }, "gcillc_CommunityDevelopmentEntitiesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Community Development Entities [Member]", "label": "Community Development Entities [Member]", "terseLabel": "Loan to Unicom" } } }, "localname": "CommunityDevelopmentEntitiesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "domainItemType" }, "gcillc_CompensationMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Compensation [Member]", "label": "Compensation [Member]", "terseLabel": "Compensation" } } }, "localname": "CompensationMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "domainItemType" }, "gcillc_ConsumerMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Consumer [Member]", "label": "Consumer [Member]", "terseLabel": "Consumer Revenue" } } }, "localname": "ConsumerMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails" ], "xbrltype": "domainItemType" }, "gcillc_ContributionsFromDistributionsToFormerParent": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Contributions From (Distributions To) Former Parent", "label": "Contributions From (Distributions To) Former Parent", "negatedTerseLabel": "Distributions to Qurate Retail", "terseLabel": "Contributions from (distributions to) former parent, net", "verboseLabel": "Contributions from Qurate Retail" } } }, "localname": "ContributionsFromDistributionsToFormerParent", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity", "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/IncomeTaxesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_ContributionsFromDistributionsToParent": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Contributions From (Distributions To) Parent", "label": "Contributions From (Distributions To) Parent", "terseLabel": "Contributions from (distributions to) member, net" } } }, "localname": "ContributionsFromDistributionsToParent", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "monetaryItemType" }, "gcillc_CustomerMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Customer [Member]", "label": "Customer [Member]", "terseLabel": "Customer" } } }, "localname": "CustomerMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "domainItemType" }, "gcillc_CustomerPremiseEquipmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Customer Premise Equipment", "label": "Customer Premise Equipment [Member]", "terseLabel": "Customer premise equipment" } } }, "localname": "CustomerPremiseEquipmentMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "gcillc_DataProductsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Data Products [Member]", "label": "Data Products [Member]", "terseLabel": "Data" } } }, "localname": "DataProductsMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails" ], "xbrltype": "domainItemType" }, "gcillc_DeferredTaxAssetsOperatingLeaseLiability": { "auth_ref": [], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 5.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Deferred Tax Assets, Operating Lease Liability", "label": "Deferred Tax Assets, Operating Lease Liability", "terseLabel": "Operating lease liability" } } }, "localname": "DeferredTaxAssetsOperatingLeaseLiability", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_DeferredTaxAssetsTaxDeferredExpenseDebt": { "auth_ref": [], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 4.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Deferred Tax Assets, Tax Deferred Expense, Debt", "label": "Deferred Tax Assets, Tax Deferred Expense, Debt", "terseLabel": "Debt" } } }, "localname": "DeferredTaxAssetsTaxDeferredExpenseDebt", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_DelayedDrawTermLoanFacilityMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Delayed Draw Term Loan Facility [Member]", "label": "Delayed Draw Term Loan Facility [Member]", "terseLabel": "Delayed Draw Term Loan Facility" } } }, "localname": "DelayedDrawTermLoanFacilityMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/DebtMarginLoanDetails" ], "xbrltype": "domainItemType" }, "gcillc_DerivativeNumberofShares": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Derivative, Number of Shares", "label": "Derivative, Number of Shares", "terseLabel": "Variable forward contract (in shares)" } } }, "localname": "DerivativeNumberofShares", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueNarrativeDetails" ], "xbrltype": "sharesItemType" }, "gcillc_DerivativePricePerShare": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Derivative, Price Per Share", "label": "Derivative, Price Per Share", "terseLabel": "Variable forward contract, closing price (in dollars per share)" } } }, "localname": "DerivativePricePerShare", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueNarrativeDetails" ], "xbrltype": "perShareItemType" }, "gcillc_DirectorsAndEmployeesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Directors And Employees [Member]", "label": "Directors And Employees [Member]", "terseLabel": "Directors and Employees" } } }, "localname": "DirectorsAndEmployeesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "domainItemType" }, "gcillc_Distributions": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Distributions", "label": "Distributions", "negatedTerseLabel": "Distribution to Qurate Retail" } } }, "localname": "Distributions", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "monetaryItemType" }, "gcillc_EffectiveIncomeTaxRateReconciliationChangeInTaxRateFromAcquisitionOfBusinessStateAndLocalIncomeTaxesAmount": { "auth_ref": [], "calculation": { "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails": { "order": 5.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Change In Tax Rate From Acquisition Of Business, State And Local Income Taxes, Amount", "label": "Effective Income Tax Rate Reconciliation, Change In Tax Rate From Acquisition Of Business, State And Local Income Taxes, Amount", "terseLabel": "Change in state tax rate due to acquisition" } } }, "localname": "EffectiveIncomeTaxRateReconciliationChangeInTaxRateFromAcquisitionOfBusinessStateAndLocalIncomeTaxesAmount", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_EffectiveIncomeTaxRateReconciliationExcessTaxBenefitFromSharebasedCompensationCostAmount": { "auth_ref": [], "calculation": { "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails": { "order": 7.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Effective Income Tax Rate Reconciliation, Excess Tax Benefit From Share-based Compensation Cost, Amount", "label": "Effective Income Tax Rate Reconciliation, Excess Tax Benefit From Share-based Compensation Cost, Amount", "terseLabel": "Deductible stock compensation" } } }, "localname": "EffectiveIncomeTaxRateReconciliationExcessTaxBenefitFromSharebasedCompensationCostAmount", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_EligibleOptionsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Eligible Options [Member]", "label": "Eligible Options [Member]", "terseLabel": "Eligible Options" } } }, "localname": "EligibleOptionsMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "domainItemType" }, "gcillc_EmployeesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Employees [Member]", "label": "Employees [Member]", "terseLabel": "Employees" } } }, "localname": "EmployeesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "domainItemType" }, "gcillc_EmploymentTerm": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Employment term", "label": "Employment Term", "terseLabel": "Employment term" } } }, "localname": "EmploymentTerm", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "durationItemType" }, "gcillc_EquipmentInstallmentPlanPaymentTerm": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Equipment Installment Plan Payment Term", "label": "Equipment Installment Plan Payment Term", "terseLabel": "Equipment installment plan period" } } }, "localname": "EquipmentInstallmentPlanPaymentTerm", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesNatureOfServicesAndProductsDetails" ], "xbrltype": "durationItemType" }, "gcillc_EquityMethodInvestmentNumberofSharesPurchased": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Equity Method Investment, Number of Shares Purchased", "label": "Equity Method Investment, Number of Shares Purchased", "terseLabel": "Number of shares purchased (in shares)" } } }, "localname": "EquityMethodInvestmentNumberofSharesPurchased", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueNarrativeDetails" ], "xbrltype": "sharesItemType" }, "gcillc_EquityMethodInvestmentSummarizedFinancialInformationDeferredTaxLiabilities": { "auth_ref": [], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": 2.0, "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Equity Method Investment, Summarized Financial Information, Deferred Tax Liabilities", "label": "Equity Method Investment, Summarized Financial Information, Deferred Tax Liabilities", "terseLabel": "Deferred income tax liabilities" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationDeferredTaxLiabilities", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_EquityMethodInvestmentSummarizedFinancialInformationGainLossonSaleofPreviouslyUnissuedStockbySubsidiaryorEquityInvesteeNonoperatingIncome": { "auth_ref": [], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": 3.0, "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Equity Method Investment, Summarized Financial Information, Gain (Loss) on Sale of Previously Unissued Stock by Subsidiary or Equity Investee, Nonoperating Income", "label": "Equity Method Investment, Summarized Financial Information, Gain (Loss) on Sale of Previously Unissued Stock by Subsidiary or Equity Investee, Nonoperating Income", "terseLabel": "Gain (loss) on dilution of investment in affiliate" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationGainLossonSaleofPreviouslyUnissuedStockbySubsidiaryorEquityInvesteeNonoperatingIncome", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_EquityMethodInvestmentSummarizedFinancialInformationIncomeLossfromEquityMethodInvestments": { "auth_ref": [], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": 2.0, "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Equity Method Investment, Summarized Financial Information, Income (Loss) from Equity Method Investments", "label": "Equity Method Investment, Summarized Financial Information, Income (Loss) from Equity Method Investments", "terseLabel": "Share of earnings (losses) of affiliates" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationIncomeLossfromEquityMethodInvestments", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_EquityMethodInvestmentSummarizedFinancialInformationIncomeTaxExpenseBenefit": { "auth_ref": [], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": 6.0, "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Equity Method Investment, Summarized Financial Information, Income Tax Expense (Benefit)", "label": "Equity Method Investment, Summarized Financial Information, Income Tax Expense (Benefit)", "negatedTerseLabel": "Income tax benefit (expense)" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationIncomeTaxExpenseBenefit", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_EquityMethodInvestmentSummarizedFinancialInformationOperatingExpenses": { "auth_ref": [], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": 2.0, "parentTag": "gcillc_EquityMethodInvestmentSummarizedFinancialInformationOperatingIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Equity Method Investment, Summarized Financial Information, Operating Expenses", "label": "Equity Method Investment, Summarized Financial Information, Operating Expenses", "negatedTerseLabel": "Operating expenses, net" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationOperatingExpenses", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_EquityMethodInvestmentSummarizedFinancialInformationOperatingIncomeLoss": { "auth_ref": [], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": 1.0, "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Equity Method Investment, Summarized Financial Information, Operating Income (Loss)", "label": "Equity Method Investment, Summarized Financial Information, Operating Income (Loss)", "totalLabel": "Operating income (loss)" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationOperatingIncomeLoss", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_EquityMethodInvestmentSummarizedFinancialInformationOtherAssets": { "auth_ref": [], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": 3.0, "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Equity Method Investment, Summarized Financial Information, Other Assets", "label": "Equity Method Investment, Summarized Financial Information, Other Assets", "terseLabel": "Other assets" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationOtherAssets", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_EquityMethodInvestmentSummarizedFinancialInformationOtherLiabilities": { "auth_ref": [], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": 3.0, "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Equity Method Investment, Summarized Financial Information, Other Liabilities", "label": "Equity Method Investment, Summarized Financial Information, Other Liabilities", "terseLabel": "Other liabilities" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationOtherLiabilities", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_EquityMethodInvestmentSummarizedFinancialInformationOtherNonoperatingIncomeExpense": { "auth_ref": [], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": 5.0, "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Equity Method Investment, Summarized Financial Information, Other Nonoperating Income (Expense)", "label": "Equity Method Investment, Summarized Financial Information, Other Nonoperating Income (Expense)", "terseLabel": "Other income (expense), net" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationOtherNonoperatingIncomeExpense", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_EquityMethodInvestmentSummarizedFinancialInformationTotalDebt": { "auth_ref": [], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": 1.0, "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Equity Method Investment, Summarized Financial Information, Total Debt", "label": "Equity Method Investment, Summarized Financial Information, Total Debt", "terseLabel": "Long-term debt" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationTotalDebt", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_EquitySecuritiesNoncurrent": { "auth_ref": [], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Equity Securities, Noncurrent", "label": "Equity Securities, Noncurrent", "terseLabel": "Investments in equity securities (note 6)", "verboseLabel": "Investments in equity securities" } } }, "localname": "EquitySecuritiesNoncurrent", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_EviteMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Evite [Member]", "label": "Evite [Member]", "terseLabel": "Evite", "verboseLabel": "Evite" } } }, "localname": "EviteMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails" ], "xbrltype": "domainItemType" }, "gcillc_FiberOpticCableSystemsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "-- None. No documentation exists for this element. --", "label": "Fiber optic cable systems [Member]", "terseLabel": "Fiber optic cable systems" } } }, "localname": "FiberOpticCableSystemsMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "gcillc_FinanceLeaseAndSaleLeasebackTransactionLiabilityNoncurrent": { "auth_ref": [], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Finance Lease And Sale Leaseback Transaction, Liability, Noncurrent", "label": "Finance Lease And Sale Leaseback Transaction, Liability, Noncurrent", "terseLabel": "Obligations under finance leases and tower obligations, excluding current portion (note 10)" } } }, "localname": "FinanceLeaseAndSaleLeasebackTransactionLiabilityNoncurrent", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "gcillc_FinanceLeaseCost": { "auth_ref": [], "calculation": { "http://www.gci.net/role/LeasesLeaseExpenseDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Finance Lease, Cost", "label": "Finance Lease, Cost", "totalLabel": "Total finance lease cost" } } }, "localname": "FinanceLeaseCost", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesLeaseExpenseDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_FinanceLeaseRightofUseAssetAccumulatedDepreciation": { "auth_ref": [], "calculation": { "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails": { "order": 2.0, "parentTag": "us-gaap_FinanceLeaseRightOfUseAsset", "weight": -1.0 }, "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails": { "order": 3.0, "parentTag": "gcillc_PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetafterAccumulatedDepreciationandAmortization", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Finance Lease, Right-of-Use Asset, Accumulated Depreciation", "label": "Finance Lease, Right-of-Use Asset, Accumulated Depreciation", "negatedTerseLabel": "Accumulated depreciation", "terseLabel": "Less accumulated depreciation on property and equipment under finance leases" } } }, "localname": "FinanceLeaseRightofUseAssetAccumulatedDepreciation", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_FinanceLeaseRightofUseAssetGross": { "auth_ref": [], "calculation": { "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails": { "order": 1.0, "parentTag": "us-gaap_FinanceLeaseRightOfUseAsset", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Finance Lease, Right-of-Use Asset, Gross", "label": "Finance Lease, Right-of-Use Asset, Gross", "terseLabel": "Property and equipment, at cost" } } }, "localname": "FinanceLeaseRightofUseAssetGross", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_FinanceLeaseRightofUseAssetbeforeAccumulatedAmortization": { "auth_ref": [], "calculation": { "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails": { "order": 1.0, "parentTag": "gcillc_PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetbeforeAccumulatedDepreciationandAmortization", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Finance Lease, Right-of-Use Asset, before Accumulated Amortization", "label": "Finance Lease, Right-of-Use Asset, before Accumulated Amortization", "terseLabel": "Property and equipment under finance leases" } } }, "localname": "FinanceLeaseRightofUseAssetbeforeAccumulatedAmortization", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_FinanceLeasedAssetGross": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Finance Leased Asset Gross", "label": "Finance Leased Asset Gross", "terseLabel": "Property and equipment under finance leases" } } }, "localname": "FinanceLeasedAssetGross", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_GCIHoldingsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "GCI Holdings [Member]", "label": "GCI Holdings [Member]", "terseLabel": "GCI Holdings", "verboseLabel": "GCI Holdings" } } }, "localname": "GCIHoldingsMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails", "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails", "http://www.gci.net/role/GoodwillAndIntangibleAssetsRollforwardDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsOtherInformationDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsPerformanceMeasuresDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails" ], "xbrltype": "domainItemType" }, "gcillc_GCILibertyMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "GCI Liberty [Member]", "label": "GCI Liberty [Member]", "terseLabel": "GCI Liberty Inc" } } }, "localname": "GCILibertyMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails", "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails", "http://www.gci.net/role/AcquisitionProFormaRevenueAndNetEarningsDetails", "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "domainItemType" }, "gcillc_GainLossOnFinancialInstruments": { "auth_ref": [], "calculation": { "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfRealizedAndUnrealizedGainsLossesDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 }, "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 3.0, "parentTag": "us-gaap_NonoperatingIncomeExpense", "weight": 1.0 }, "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails": { "order": 4.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0 }, "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": 4.0, "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Gain (Loss) On Financial Instruments", "label": "Gain (Loss) On Financial Instruments", "negatedTerseLabel": "Realized and unrealized (gains) losses on financial instruments, net", "terseLabel": "Realized and unrealized gains (losses) on financial instruments, net", "totalLabel": "Realized and unrealized gains (losses) on financial instruments, net", "verboseLabel": "Realized and unrealized gains (losses) on financial instruments, net (note 5)" } } }, "localname": "GainLossOnFinancialInstruments", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfRealizedAndUnrealizedGainsLossesDetails", "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows", "http://www.gci.net/role/ConsolidatedStatementsOfOperations", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_GainLossOnLeaseModification": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Gain (Loss) On Lease Modification", "label": "Gain (Loss) On Lease Modification", "terseLabel": "Gain on lease modification" } } }, "localname": "GainLossOnLeaseModification", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_HoldCoMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "HoldCo [Member]", "label": "HoldCo [Member]", "terseLabel": "HoldCo" } } }, "localname": "HoldCoMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails", "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails", "http://www.gci.net/role/AcquisitionProFormaRevenueAndNetEarningsDetails" ], "xbrltype": "domainItemType" }, "gcillc_IncreaseDecreaseInFinanceLeaseLiability": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Increase (Decrease) In Finance Lease Liability", "label": "Increase (Decrease) In Finance Lease Liability", "negatedTerseLabel": "Reduction in finance lease liability" } } }, "localname": "IncreaseDecreaseInFinanceLeaseLiability", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_IndefiniteLivedIntangibleAssetsIncludingGoodwill": { "auth_ref": [], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 5.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Indefinite-Lived Intangible Assets (Including Goodwill)", "label": "Indefinite-Lived Intangible Assets (Including Goodwill)", "totalLabel": "Intangible assets not subject to amortization" } } }, "localname": "IndefiniteLivedIntangibleAssetsIncludingGoodwill", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "gcillc_InsuranceRecoveriesAndRestructuringNet": { "auth_ref": [], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 5.0, "parentTag": "us-gaap_OperatingExpenses", "weight": 1.0 }, "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails": { "order": 5.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Insurance Recoveries And Restructuring, Net", "label": "Insurance Recoveries And Restructuring, Net", "negatedTerseLabel": "Insurance proceeds and restructuring, net", "terseLabel": "Insurance proceeds and restructuring, net" } } }, "localname": "InsuranceRecoveriesAndRestructuringNet", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfOperations", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_IntergroupPaymentsReceipts": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Intergroup (Payments) Receipts", "label": "Intergroup (Payments) Receipts", "negatedTerseLabel": "Intergroup (payments) receipts" } } }, "localname": "IntergroupPaymentsReceipts", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "monetaryItemType" }, "gcillc_IntergroupTaxPaymentAdjustments": { "auth_ref": [], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Intergroup Tax Payment Adjustments", "label": "Intergroup Tax Payment Adjustments", "terseLabel": "Intergroup tax payments" } } }, "localname": "IntergroupTaxPaymentAdjustments", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "gcillc_LILLCMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "LI LLC [Member]", "label": "LI LLC [Member]", "terseLabel": "LI LLC" } } }, "localname": "LILLCMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "domainItemType" }, "gcillc_LVNTAAndLVNTBSharesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "LVNTA And LVNTB Shares [Member]", "label": "LVNTA And LVNTB Shares [Member]", "terseLabel": "LVNTA and LVNTB shares" } } }, "localname": "LVNTAAndLVNTBSharesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "domainItemType" }, "gcillc_LVNTASharesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "LVNTA Shares [Member]", "label": "LVNTA Shares [Member]", "terseLabel": "LVNTA shares" } } }, "localname": "LVNTASharesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "domainItemType" }, "gcillc_LVNTBSharesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "LVNTB Shares [Member]", "label": "LVNTB Shares [Member]", "terseLabel": "LVNTB shares" } } }, "localname": "LVNTBSharesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "domainItemType" }, "gcillc_LeaseGrantAndRevenueFromSubsidiesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Lease, Grant And Revenue From Subsidies [Member]", "label": "Lease, Grant And Revenue From Subsidies [Member]", "terseLabel": "Lease, grant, and revenue from subsidies" } } }, "localname": "LeaseGrantAndRevenueFromSubsidiesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails" ], "xbrltype": "domainItemType" }, "gcillc_LendingTreeMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "LendingTree [Member]", "label": "LendingTree [Member]", "terseLabel": "LendingTree" } } }, "localname": "LendingTreeMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueNarrativeDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLendingTreeDetails" ], "xbrltype": "domainItemType" }, "gcillc_LesseeOperatingLeaseRemainingLeaseTerm": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Lessee, Operating Lease, Remaining Lease Term", "label": "Lessee, Operating Lease, Remaining Lease Term", "terseLabel": "Remaining lease term" } } }, "localname": "LesseeOperatingLeaseRemainingLeaseTerm", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails" ], "xbrltype": "durationItemType" }, "gcillc_LesseeOperatingLeaseTerminationPeriod": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Lessee, Operating Lease, Termination Period", "label": "Lessee, Operating Lease, Termination Period", "terseLabel": "Termination period" } } }, "localname": "LesseeOperatingLeaseTerminationPeriod", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails" ], "xbrltype": "durationItemType" }, "gcillc_LesseeSaleLeasebackTransactionFiscalYearMaturityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Lessee, Sale Leaseback Transaction, Fiscal Year Maturity [Abstract]", "label": "Lessee, Sale Leaseback Transaction, Fiscal Year Maturity [Abstract]", "terseLabel": "Tower Obligations" } } }, "localname": "LesseeSaleLeasebackTransactionFiscalYearMaturityAbstract", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "stringItemType" }, "gcillc_LesseeSaleLeasebackTransactionLiabilityUndiscountedExcessAmount": { "auth_ref": [], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetailsCalc2": { "order": 1.0, "parentTag": "gcillc_LesseeSaleLeasebackTransactionPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Lessee, Sale Leaseback Transaction, Liability, Undiscounted Excess Amount", "label": "Lessee, Sale Leaseback Transaction, Liability, Undiscounted Excess Amount", "negatedTerseLabel": "Less: imputed interest" } } }, "localname": "LesseeSaleLeasebackTransactionLiabilityUndiscountedExcessAmount", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_LesseeSaleLeasebackTransactionPaymentsDue": { "auth_ref": [], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.gci.net/role/LeasesFutureLeasePaymentsDetailsCalc2": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Lessee, Sale Leaseback Transaction, Payments, Due", "label": "Lessee, Sale Leaseback Transaction, Payments, Due", "totalLabel": "Total lease payments" } } }, "localname": "LesseeSaleLeasebackTransactionPaymentsDue", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_LesseeSaleLeasebackTransactionPaymentsDueAfterYearFive": { "auth_ref": [], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 6.0, "parentTag": "gcillc_LesseeSaleLeasebackTransactionPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Lessee, Sale Leaseback Transaction, Payments, Due After Year Five", "label": "Lessee, Sale Leaseback Transaction, Payments, Due After Year Five", "terseLabel": "Thereafter" } } }, "localname": "LesseeSaleLeasebackTransactionPaymentsDueAfterYearFive", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_LesseeSaleLeasebackTransactionPaymentsDueNextTwelveMonths": { "auth_ref": [], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 1.0, "parentTag": "gcillc_LesseeSaleLeasebackTransactionPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Lessee, Sale Leaseback Transaction, Payments, Due Next Twelve Months", "label": "Lessee, Sale Leaseback Transaction, Payments, Due Next Twelve Months", "terseLabel": "2020" } } }, "localname": "LesseeSaleLeasebackTransactionPaymentsDueNextTwelveMonths", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_LesseeSaleLeasebackTransactionPaymentsDueYearFive": { "auth_ref": [], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 5.0, "parentTag": "gcillc_LesseeSaleLeasebackTransactionPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Lessee, Sale Leaseback Transaction, Payments, Due Year Five", "label": "Lessee, Sale Leaseback Transaction, Payments, Due Year Five", "terseLabel": "2024" } } }, "localname": "LesseeSaleLeasebackTransactionPaymentsDueYearFive", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_LesseeSaleLeasebackTransactionPaymentsDueYearFour": { "auth_ref": [], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 4.0, "parentTag": "gcillc_LesseeSaleLeasebackTransactionPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Lessee, Sale Leaseback Transaction, Payments, Due Year Four", "label": "Lessee, Sale Leaseback Transaction, Payments, Due Year Four", "terseLabel": "2023" } } }, "localname": "LesseeSaleLeasebackTransactionPaymentsDueYearFour", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_LesseeSaleLeasebackTransactionPaymentsDueYearThree": { "auth_ref": [], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 3.0, "parentTag": "gcillc_LesseeSaleLeasebackTransactionPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Lessee, Sale Leaseback Transaction, Payments, Due Year Three", "label": "Lessee, Sale Leaseback Transaction, Payments, Due Year Three", "terseLabel": "2022" } } }, "localname": "LesseeSaleLeasebackTransactionPaymentsDueYearThree", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_LesseeSaleLeasebackTransactionPaymentsDueYearTwo": { "auth_ref": [], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 2.0, "parentTag": "gcillc_LesseeSaleLeasebackTransactionPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Lessee, Sale Leaseback Transaction, Payments, Due Year Two", "label": "Lessee, Sale Leaseback Transaction, Payments, Due Year Two", "terseLabel": "2021" } } }, "localname": "LesseeSaleLeasebackTransactionPaymentsDueYearTwo", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_LibertyBroadbandMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Liberty Broadband [Member]", "label": "Liberty Broadband [Member]", "terseLabel": "Liberty Broadband" } } }, "localname": "LibertyBroadbandMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsOtherInformationDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsPerformanceMeasuresDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "domainItemType" }, "gcillc_LibertyMediaCorporationMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Liberty Media Corporation [Member]", "label": "Liberty Media Corporation [Member]", "terseLabel": "Liberty Media" } } }, "localname": "LibertyMediaCorporationMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "domainItemType" }, "gcillc_LibertyVenturesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Liberty Ventures [Member]", "label": "Liberty Ventures [Member]", "terseLabel": "Liberty Ventures" } } }, "localname": "LibertyVenturesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "domainItemType" }, "gcillc_LineofCreditFacilityCovenantTermsPeriodicPrincipalPaymentsPercentageofOriginalPrincipalAmount": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line of Credit Facility, Covenant Terms, Periodic Principal Payments, Percentage of Original Principal Amount", "label": "Line of Credit Facility, Covenant Terms, Periodic Principal Payments, Percentage of Original Principal Amount", "terseLabel": "Principal payments, a percentage of the original principal amount" } } }, "localname": "LineofCreditFacilityCovenantTermsPeriodicPrincipalPaymentsPercentageofOriginalPrincipalAmount", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "percentItemType" }, "gcillc_LineofCreditFacilityCovenantTermsSecuredLeverageRatio": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line of Credit Facility, Covenant Terms, Secured Leverage Ratio", "label": "Line of Credit Facility, Covenant Terms, Secured Leverage Ratio", "terseLabel": "Secured leverage ratio" } } }, "localname": "LineofCreditFacilityCovenantTermsSecuredLeverageRatio", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "pureItemType" }, "gcillc_LineofCreditFacilityCovenantTermsTotalLeverageRatio": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line of Credit Facility, Covenant Terms, Total Leverage Ratio", "label": "Line of Credit Facility, Covenant Terms, Total Leverage Ratio", "terseLabel": "Total leverage ratio" } } }, "localname": "LineofCreditFacilityCovenantTermsTotalLeverageRatio", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "pureItemType" }, "gcillc_LineofCreditMarginLoanMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line of Credit, Margin Loan [Member]", "label": "Line of Credit, Margin Loan [Member]", "terseLabel": "Margin Loan Facility", "verboseLabel": "Margin Loan" } } }, "localname": "LineofCreditMarginLoanMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSummaryOfDebtDetails" ], "xbrltype": "domainItemType" }, "gcillc_NoncashOrPartNoncashAcquisitionDeferredTaxAssetsAcquiredLiabilitiesAssumed": { "auth_ref": [], "calculation": { "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails": { "order": 5.0, "parentTag": "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Noncash Or Part Noncash Acquisition, Deferred Tax Assets Acquired (Liabilities Assumed)", "label": "Noncash Or Part Noncash Acquisition, Deferred Tax Assets Acquired (Liabilities Assumed)", "terseLabel": "Deferred tax assets (liabilities)" } } }, "localname": "NoncashOrPartNoncashAcquisitionDeferredTaxAssetsAcquiredLiabilitiesAssumed", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_NoncashOrPartNoncashAcquisitionFiniteLivedIntangibleAssetsAcquired": { "auth_ref": [], "calculation": { "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails": { "order": 3.0, "parentTag": "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Noncash Or Part Noncash Acquisition, Finite-Lived Intangible Assets Acquired", "label": "Noncash Or Part Noncash Acquisition, Finite-Lived Intangible Assets Acquired", "terseLabel": "Intangible assets subject to amortization" } } }, "localname": "NoncashOrPartNoncashAcquisitionFiniteLivedIntangibleAssetsAcquired", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_NoncashOrPartNoncashAcquisitionIndefiniteLivedIntangibleAssetsAcquired": { "auth_ref": [], "calculation": { "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails": { "order": 2.0, "parentTag": "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Noncash Or Part Noncash Acquisition, Indefinite-Lived Intangible Assets Acquired", "label": "Noncash Or Part Noncash Acquisition, Indefinite-Lived Intangible Assets Acquired", "terseLabel": "Intangible assets not subject to amortization" } } }, "localname": "NoncashOrPartNoncashAcquisitionIndefiniteLivedIntangibleAssetsAcquired", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_NoncashOrPartNoncashAcquisitionNoncashFinancialorEquityInstrumentConsiderationFairValue": { "auth_ref": [], "calculation": { "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails": { "order": 6.0, "parentTag": "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Noncash Or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Fair Value", "label": "Noncash Or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Fair Value", "negatedTerseLabel": "Fair value of equity consideration" } } }, "localname": "NoncashOrPartNoncashAcquisitionNoncashFinancialorEquityInstrumentConsiderationFairValue", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_NoncashOrPartNoncashAcquisitionReceivableAndOtherAssetsAcquired": { "auth_ref": [], "calculation": { "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails": { "order": 7.0, "parentTag": "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Noncash Or Part Noncash Acquisition, Receivable And Other Assets Acquired", "label": "Noncash Or Part Noncash Acquisition, Receivable And Other Assets Acquired", "terseLabel": "Receivables and other assets" } } }, "localname": "NoncashOrPartNoncashAcquisitionReceivableAndOtherAssetsAcquired", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_NumberOfContracts": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Number Of Contracts", "label": "Number Of Contracts", "terseLabel": "Number of contracts" } } }, "localname": "NumberOfContracts", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "integerItemType" }, "gcillc_NumberOfServiceContracts": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Number Of Service Contracts", "label": "Number Of Service Contracts", "terseLabel": "Number of service contracts" } } }, "localname": "NumberOfServiceContracts", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "integerItemType" }, "gcillc_NumberofInstallmentPlanPayments": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Number of Installment Plan Payments required for right to trade-in handset.", "label": "Number of Installment Plan Payments", "terseLabel": "Number of installment plan payments" } } }, "localname": "NumberofInstallmentPlanPayments", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesNatureOfServicesAndProductsDetails" ], "xbrltype": "integerItemType" }, "gcillc_OneTimeCashCommitmentBonusMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "One-Time Cash Commitment Bonus [Member]", "label": "One-Time Cash Commitment Bonus [Member]", "terseLabel": "One-Time Cash Commitment Bonus" } } }, "localname": "OneTimeCashCommitmentBonusMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "domainItemType" }, "gcillc_OperatingLossCarryforwardSubjectToExpirationAndDoubtful": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Operating Loss Carryforward, Subject To Expiration And Doubtful", "label": "Operating Loss Carryforward, Subject To Expiration And Doubtful", "terseLabel": "Carryforwards that may expire if unused" } } }, "localname": "OperatingLossCarryforwardSubjectToExpirationAndDoubtful", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/IncomeTaxesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_OptionExchangeMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Option Exchange [Member]", "label": "Option Exchange [Member]", "terseLabel": "Option Exchange" } } }, "localname": "OptionExchangeMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/StockBasedCompensationExercisesDetails" ], "xbrltype": "domainItemType" }, "gcillc_OtherEquityMethodInvesteesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Other Equity Method Investees [Member]", "label": "Other Equity Method Investees [Member]", "terseLabel": "Other" } } }, "localname": "OtherEquityMethodInvesteesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLendingTreeDetails" ], "xbrltype": "domainItemType" }, "gcillc_ParentsInvestment": { "auth_ref": [], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Parent's Investment", "label": "Parent's Investment", "terseLabel": "Member's investment" } } }, "localname": "ParentsInvestment", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "gcillc_ParentsInvestmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Parent's Investment [Member]", "label": "Parent's Investment [Member]", "terseLabel": "Member's investment" } } }, "localname": "ParentsInvestmentMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "domainItemType" }, "gcillc_ProceedsFromBorrowingsFromAffiliates": { "auth_ref": [], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Proceeds From Borrowings From Affiliates", "label": "Proceeds From Borrowings From Affiliates", "terseLabel": "Borrowing from GCI Liberty" } } }, "localname": "ProceedsFromBorrowingsFromAffiliates", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "gcillc_PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetafterAccumulatedDepreciationandAmortization": { "auth_ref": [], "calculation": { "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization", "label": "Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization", "totalLabel": "Property and equipment, net" } } }, "localname": "PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetafterAccumulatedDepreciationandAmortization", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetbeforeAccumulatedDepreciationandAmortization": { "auth_ref": [], "calculation": { "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails": { "order": 1.0, "parentTag": "gcillc_PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetafterAccumulatedDepreciationandAmortization", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization", "label": "Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization", "totalLabel": "Property and equipment" } } }, "localname": "PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetbeforeAccumulatedDepreciationandAmortization", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_ProvisionForDoubtfulAccountsChargedtoOtherAccounts": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of allowance for doubtful accounts increase which was not charged to operations. Specifics of where it was charged is discussed in narrative to the footnote.", "label": "Provision For Doubtful Accounts, Charged to Other Accounts", "terseLabel": "Charged to other accounts" } } }, "localname": "ProvisionForDoubtfulAccountsChargedtoOtherAccounts", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAccountsReceivableAndAllowanceForDoubtfulReceivablesDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_PublicUtilitiesRevenueSupportFromRegulatoryAgencyPercentage": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Public Utilities, Revenue Support From Regulatory Agency, Percentage", "label": "Public Utilities, Revenue Support From Regulatory Agency, Percentage", "terseLabel": "Revenue support from regulatory agency, percentage" } } }, "localname": "PublicUtilitiesRevenueSupportFromRegulatoryAgencyPercentage", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesUniversalServiceFundDetails" ], "xbrltype": "percentItemType" }, "gcillc_QurateRetailMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Qurate Retail [Member]", "label": "Qurate Retail [Member]", "terseLabel": "Qurate Retail" } } }, "localname": "QurateRetailMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows", "http://www.gci.net/role/DebtMarginLoanDetails" ], "xbrltype": "domainItemType" }, "gcillc_ReconciliationOfAdjustedOperatingIncomeBeforeDepreciationAndAmortizationToIncomeLossFromContinuingOperationsBeforeIncomeTaxesTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Reconciliation Of Adjusted Operating Income Before Depreciation And Amortization To Income (Loss) From Continuing Operations Before Income Taxes [Table Text Block]", "label": "Reconciliation Of Adjusted Operating Income Before Depreciation And Amortization To Income (Loss) From Continuing Operations Before Income Taxes [Table Text Block]", "terseLabel": "Reconciliation of Adjusted OIBDA to Operating Income and Earnings (Loss) from Continuing Operations" } } }, "localname": "ReconciliationOfAdjustedOperatingIncomeBeforeDepreciationAndAmortizationToIncomeLossFromContinuingOperationsBeforeIncomeTaxesTableTextBlock", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsTables" ], "xbrltype": "textBlockItemType" }, "gcillc_ReductionInProgramSupportPayment": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Reduction In Program Support Payment", "label": "Reduction In Program Support Payment", "terseLabel": "Reduction in program support payment" } } }, "localname": "ReductionInProgramSupportPayment", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_ReductionInRuralRatesChargedToRuralHealthCareCustomersMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Reduction In Rural Rates Charged To Rural Health Care Customers [Member]", "label": "Reduction In Rural Rates Charged To Rural Health Care Customers [Member]", "terseLabel": "Reduction in Rural Rates Charged to RHC Customers" } } }, "localname": "ReductionInRuralRatesChargedToRuralHealthCareCustomersMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "domainItemType" }, "gcillc_ReductionInRuralRatesPercentage": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Reduction In Rural Rates, Percentage", "label": "Reduction In Rural Rates, Percentage", "terseLabel": "Reduction in rural rates (as a percent)" } } }, "localname": "ReductionInRuralRatesPercentage", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "percentItemType" }, "gcillc_ReimbursableExpensesDueToAffiliate": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Reimbursable Expenses, Due To Affiliate", "label": "Reimbursable Expenses, Due To Affiliate", "terseLabel": "Reimbursable expenses" } } }, "localname": "ReimbursableExpensesDueToAffiliate", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_RelatedPartyTransactionExpensesFromTransactionsWithRelatedPartyAllocationPercent": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Related Party Transaction, Expenses From Transactions With Related Party, Allocation Percent", "label": "Related Party Transaction, Expenses From Transactions With Related Party, Allocation Percent", "terseLabel": "Expense allocation percent" } } }, "localname": "RelatedPartyTransactionExpensesFromTransactionsWithRelatedPartyAllocationPercent", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "percentItemType" }, "gcillc_RepaymentOfDebtFinanceLeaseObligationAndSaleLeaseBackObligation": { "auth_ref": [], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Repayment Of Debt, Finance Lease Obligation, And Sale Lease Back Obligation", "label": "Repayment Of Debt, Finance Lease Obligation, And Sale Lease Back Obligation", "negatedTerseLabel": "Repayment of debt, finance leases, and tower obligations" } } }, "localname": "RepaymentOfDebtFinanceLeaseObligationAndSaleLeaseBackObligation", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "gcillc_RevenueExpectedProgramReduction": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Revenue, Expected Program Reduction", "label": "Revenue, Expected Program Reduction", "terseLabel": "Expected reduction in program revenue" } } }, "localname": "RevenueExpectedProgramReduction", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_RevenueRecognitionLeasesGrantsAndSubsidiesPolicyTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Revenue Recognition, Leases, Grants And Subsidies [Policy Text Block]", "label": "Revenue Recognition, Leases, Grants And Subsidies [Policy Text Block]", "terseLabel": "Lease, Grant, and Revenue from Subsidies" } } }, "localname": "RevenueRecognitionLeasesGrantsAndSubsidiesPolicyTextBlock", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies" ], "xbrltype": "textBlockItemType" }, "gcillc_RightOfUseAssetsObtainedInExchangeForLeaseObligationsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Right-Of-Use Assets Obtained In Exchange For Lease Obligations [Abstract]", "label": "Right-Of-Use Assets Obtained In Exchange For Lease Obligations [Abstract]", "terseLabel": "ROU assets obtained in exchange for lease obligations" } } }, "localname": "RightOfUseAssetsObtainedInExchangeForLeaseObligationsAbstract", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesSupplementalCashFlowInformationDetails" ], "xbrltype": "stringItemType" }, "gcillc_RuralHealthCareCustomersMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Rural Health Care Customers [Member]", "label": "Rural Health Care Customers [Member]", "terseLabel": "RHC Customers" } } }, "localname": "RuralHealthCareCustomersMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "domainItemType" }, "gcillc_SaleLeasebackTransactionLiability": { "auth_ref": [], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetailsCalc2": { "order": 2.0, "parentTag": "gcillc_LesseeSaleLeasebackTransactionPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Sale Leaseback Transaction, Liability", "label": "Sale Leaseback Transaction, Liability", "terseLabel": "Total lease liabilities" } } }, "localname": "SaleLeasebackTransactionLiability", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_ScheduleofGoodwillAndIntangibleAssetsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "[Line Items] for Schedule of Goodwill And Intangible Assets [Table]", "label": "Schedule of Goodwill And Intangible Assets [Line Items]", "terseLabel": "Schedule of Goodwill And Intangible Assets [Line Items]" } } }, "localname": "ScheduleofGoodwillAndIntangibleAssetsLineItems", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails" ], "xbrltype": "stringItemType" }, "gcillc_ScheduleofGoodwillAndIntangibleAssetsTable": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Schedule of Goodwill And Intangible Assets [Table]", "label": "Schedule of Goodwill And Intangible Assets [Table]", "terseLabel": "Schedule of Goodwill And Intangible Assets [Table]" } } }, "localname": "ScheduleofGoodwillAndIntangibleAssetsTable", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails" ], "xbrltype": "stringItemType" }, "gcillc_SecurityOwnedandPledgedasCollateralEquity": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Security Owned and Pledged as Collateral, Equity", "label": "Security Owned and Pledged as Collateral, Equity", "terseLabel": "Number of shares pledged as collateral (in shares)" } } }, "localname": "SecurityOwnedandPledgedasCollateralEquity", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/DebtMarginLoanDetails" ], "xbrltype": "sharesItemType" }, "gcillc_SeniorNotesDue2021Member": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Senior Notes Due 2021 [Member]", "label": "Senior Notes Due 2021 [Member]", "terseLabel": "2021 Senior Notes" } } }, "localname": "SeniorNotesDue2021Member", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/DebtSeniorNotesDetails" ], "xbrltype": "domainItemType" }, "gcillc_SeniorNotesDue2024Member": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Senior Notes Due 2024 [Member]", "label": "Senior Notes Due 2024 [Member]", "terseLabel": "2024 Senior Notes" } } }, "localname": "SeniorNotesDue2024Member", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/DebtSeniorNotesDetails" ], "xbrltype": "domainItemType" }, "gcillc_SeniorNotesDue2025Member": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Senior Notes Due 2025 [Member]", "label": "Senior Notes Due 2025 [Member]", "terseLabel": "2025 Senior Notes" } } }, "localname": "SeniorNotesDue2025Member", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/DebtSeniorNotesDetails" ], "xbrltype": "domainItemType" }, "gcillc_SharesRedemptionRatio": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Shares Redemption Ratio", "label": "Shares Redemption Ratio", "terseLabel": "Shares redemption ratio" } } }, "localname": "SharesRedemptionRatio", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "pureItemType" }, "gcillc_StockholdersEquityNoteIncomeTaxesFromSplitoffTransaction": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Stockholders' Equity Note, Income Taxes From Splitoff Transaction", "label": "Stockholders' Equity Note, Income Taxes From Splitoff Transaction", "terseLabel": "Contribution of taxes in connection with HoldCo Split-Off" } } }, "localname": "StockholdersEquityNoteIncomeTaxesFromSplitoffTransaction", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "monetaryItemType" }, "gcillc_SupportEquipmentAndSystemMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "-- None. No documentation exists for this element. --", "label": "Support Equipment And System [Member]", "terseLabel": "Support equipment and systems" } } }, "localname": "SupportEquipmentAndSystemMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "gcillc_TelephonyTransmissionEquipmentAndDistributionFacilitiesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "-- None. No documentation exists for this element. --", "label": "Telephony Transmission Equipment And Distribution Facilities [Member]", "terseLabel": "Telephony transmission equipment and distribution facilities" } } }, "localname": "TelephonyTransmissionEquipmentAndDistributionFacilitiesMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "gcillc_TermLoanAMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Term Loan A [Member]", "label": "Term Loan A [Member]", "terseLabel": "Term Loan A" } } }, "localname": "TermLoanAMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "domainItemType" }, "gcillc_TermLoanBMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Term Loan B [Member]", "label": "Term Loan B [Member]", "terseLabel": "Term Loan B" } } }, "localname": "TermLoanBMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "domainItemType" }, "gcillc_TermLoanFacilityMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Term Loan Facility [Member]", "label": "Term Loan Facility [Member]", "terseLabel": "Term Loan Facility" } } }, "localname": "TermLoanFacilityMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/DebtMarginLoanDetails" ], "xbrltype": "domainItemType" }, "gcillc_TradeInEquipmentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Trade-In Equipment [Member]", "label": "Trade-In Equipment [Member]", "terseLabel": "Trade-In Equipment" } } }, "localname": "TradeInEquipmentMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesNatureOfServicesAndProductsDetails" ], "xbrltype": "domainItemType" }, "gcillc_USBancorpMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "US Bancorp [Member]", "label": "US Bancorp [Member]", "terseLabel": "US Bancorp Investment" } } }, "localname": "USBancorpMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "domainItemType" }, "gcillc_UnvestedNewOptionsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Unvested New Options [Member]", "label": "Unvested New Options [Member]", "terseLabel": "Unvested New Options" } } }, "localname": "UnvestedNewOptionsMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "domainItemType" }, "gcillc_UpfrontAwardMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Upfront Award [Member]", "label": "Upfront Award [Member]", "terseLabel": "Upfront Award" } } }, "localname": "UpfrontAwardMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "domainItemType" }, "gcillc_UsfProgramMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "USF Program [Member]", "label": "USF Program [Member]", "terseLabel": "USF Program" } } }, "localname": "UsfProgramMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesUniversalServiceFundDetails" ], "xbrltype": "domainItemType" }, "gcillc_VariableInterestEntityFinancialorOtherSupportAmountToOtherEntity": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Variable Interest Entity, Financial or Other Support, Amount To Other Entity", "label": "Variable Interest Entity, Financial or Other Support, Amount To Other Entity", "verboseLabel": "Financial support to other entity" } } }, "localname": "VariableInterestEntityFinancialorOtherSupportAmountToOtherEntity", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "monetaryItemType" }, "gcillc_VariableInterestEntityFinancialorOtherSupportInterestRatePercentage": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Variable Interest Entity, Financial or Other Support, Interest Rate Percentage", "label": "Variable Interest Entity, Financial or Other Support, Interest Rate Percentage", "terseLabel": "Interest Rate on Loan" } } }, "localname": "VariableInterestEntityFinancialorOtherSupportInterestRatePercentage", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "percentItemType" }, "gcillc_VideoProductsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Video Products [Member]", "label": "Video Products [Member]", "terseLabel": "Video" } } }, "localname": "VideoProductsMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails" ], "xbrltype": "domainItemType" }, "gcillc_VoiceProductsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Voice Products [Member]", "label": "Voice Products [Member]", "terseLabel": "Voice" } } }, "localname": "VoiceProductsMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails" ], "xbrltype": "domainItemType" }, "gcillc_WeightedAverageDiscountRateAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Weighted Average Discount Rate [Abstract]", "label": "Weighted Average Discount Rate [Abstract]", "terseLabel": "Weighted-average discount rate:" } } }, "localname": "WeightedAverageDiscountRateAbstract", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesWeightedAverageTermAndDiscountRateDetails" ], "xbrltype": "stringItemType" }, "gcillc_WeightedAverageRemainingLeaseTermAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Weighted Average Remaining Lease Term [Abstract]", "label": "Weighted Average Remaining Lease Term [Abstract]", "terseLabel": "Weighted-average remaining lease term (years):" } } }, "localname": "WeightedAverageRemainingLeaseTermAbstract", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/LeasesWeightedAverageTermAndDiscountRateDetails" ], "xbrltype": "stringItemType" }, "gcillc_WirelessProductsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Wireless Products [Member]", "label": "Wireless Products [Member]", "terseLabel": "Wireless" } } }, "localname": "WirelessProductsMember", "nsuri": "http://www.gci.net/20191231", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails" ], "xbrltype": "domainItemType" }, "srt_AffiliatedEntityMember": { "auth_ref": [ "r260", "r410", "r412", "r479" ], "lang": { "en-US": { "role": { "label": "Affiliated Entity [Member]", "terseLabel": "Affiliated Entity" } } }, "localname": "AffiliatedEntityMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "domainItemType" }, "srt_ChiefExecutiveOfficerMember": { "auth_ref": [ "r149" ], "lang": { "en-US": { "role": { "label": "Chief Executive Officer [Member]", "terseLabel": "Gregory B. Maffei", "verboseLabel": "Chief Executive Officer" } } }, "localname": "ChiefExecutiveOfficerMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "domainItemType" }, "srt_ConsolidatedEntitiesAxis": { "auth_ref": [ "r479" ], "lang": { "en-US": { "role": { "label": "Consolidated Entities [Axis]", "terseLabel": "Consolidated Entities [Axis]" } } }, "localname": "ConsolidatedEntitiesAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "srt_ConsolidatedEntitiesDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Consolidated Entities [Domain]", "terseLabel": "Consolidated Entities [Domain]" } } }, "localname": "ConsolidatedEntitiesDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "domainItemType" }, "srt_ConsolidationEliminationsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Consolidation, Eliminations [Member]", "terseLabel": "Consolidation, Eliminations" } } }, "localname": "ConsolidationEliminationsMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsOtherInformationDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsPerformanceMeasuresDetails" ], "xbrltype": "domainItemType" }, "srt_ConsolidationItemsAxis": { "auth_ref": [ "r131", "r144" ], "lang": { "en-US": { "role": { "label": "Consolidation Items [Axis]", "terseLabel": "Consolidation Items [Axis]" } } }, "localname": "ConsolidationItemsAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsOtherInformationDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsPerformanceMeasuresDetails" ], "xbrltype": "stringItemType" }, "srt_ConsolidationItemsDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Consolidation Items [Domain]", "terseLabel": "Consolidation Items [Domain]" } } }, "localname": "ConsolidationItemsDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsOtherInformationDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsPerformanceMeasuresDetails" ], "xbrltype": "domainItemType" }, "srt_CounterpartyNameAxis": { "auth_ref": [ "r54", "r103" ], "lang": { "en-US": { "role": { "label": "Counterparty Name [Axis]", "terseLabel": "Counterparty Name [Axis]" } } }, "localname": "CounterpartyNameAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "stringItemType" }, "srt_DirectorMember": { "auth_ref": [ "r149" ], "lang": { "en-US": { "role": { "label": "Director [Member]", "terseLabel": "Directors" } } }, "localname": "DirectorMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "domainItemType" }, "srt_EquityMethodInvesteeNameDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Investment, Name [Domain]", "terseLabel": "Investment, Name [Domain]" } } }, "localname": "EquityMethodInvesteeNameDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueNarrativeDetails", "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLendingTreeDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "domainItemType" }, "srt_MajorCustomersAxis": { "auth_ref": [ "r147", "r251", "r254", "r469" ], "lang": { "en-US": { "role": { "label": "Customer [Axis]", "terseLabel": "Customer [Axis]" } } }, "localname": "MajorCustomersAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails" ], "xbrltype": "stringItemType" }, "srt_MaximumMember": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Maximum [Member]", "terseLabel": "Maximum" } } }, "localname": "MaximumMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails", "http://www.gci.net/role/LeasesNarrativeDetails", "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationIncentivePlanDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAssetsRecognizedFromCostsToObtainContractWithCustomerDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesIntangibleAssetsDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails", "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "domainItemType" }, "srt_MinimumMember": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Minimum [Member]", "terseLabel": "Minimum" } } }, "localname": "MinimumMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails", "http://www.gci.net/role/LeasesNarrativeDetails", "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationIncentivePlanDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAssetsRecognizedFromCostsToObtainContractWithCustomerDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesIntangibleAssetsDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails", "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "domainItemType" }, "srt_NameOfMajorCustomerDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Customer [Domain]", "terseLabel": "Customer [Domain]" } } }, "localname": "NameOfMajorCustomerDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails" ], "xbrltype": "domainItemType" }, "srt_ProductOrServiceAxis": { "auth_ref": [ "r146", "r251", "r253", "r467", "r468" ], "lang": { "en-US": { "role": { "label": "Product and Service [Axis]", "terseLabel": "Product and Service [Axis]" } } }, "localname": "ProductOrServiceAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesNatureOfServicesAndProductsDetails" ], "xbrltype": "stringItemType" }, "srt_ProductsAndServicesDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Product and Service [Domain]", "terseLabel": "Product and Service [Domain]" } } }, "localname": "ProductsAndServicesDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesNatureOfServicesAndProductsDetails" ], "xbrltype": "domainItemType" }, "srt_RangeAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Statistical Measurement [Axis]", "terseLabel": "Statistical Measurement [Axis]" } } }, "localname": "RangeAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails", "http://www.gci.net/role/LeasesNarrativeDetails", "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationIncentivePlanDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAssetsRecognizedFromCostsToObtainContractWithCustomerDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesIntangibleAssetsDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails", "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "stringItemType" }, "srt_RangeMember": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Statistical Measurement [Domain]", "terseLabel": "Statistical Measurement [Domain]" } } }, "localname": "RangeMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails", "http://www.gci.net/role/LeasesNarrativeDetails", "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationIncentivePlanDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAssetsRecognizedFromCostsToObtainContractWithCustomerDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesIntangibleAssetsDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails", "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "domainItemType" }, "srt_RepurchaseAgreementCounterpartyNameDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Counterparty Name [Domain]", "terseLabel": "Counterparty Name [Domain]" } } }, "localname": "RepurchaseAgreementCounterpartyNameDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "domainItemType" }, "srt_ScenarioForecastMember": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Forecast [Member]", "terseLabel": "Forecast" } } }, "localname": "ScenarioForecastMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "domainItemType" }, "srt_ScenarioUnspecifiedDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Scenario [Domain]", "terseLabel": "Scenario [Domain]" } } }, "localname": "ScenarioUnspecifiedDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "domainItemType" }, "srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis": { "auth_ref": [ "r160" ], "lang": { "en-US": { "role": { "label": "Investment, Name [Axis]", "terseLabel": "Investment, Name [Axis]" } } }, "localname": "ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueNarrativeDetails", "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLendingTreeDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "stringItemType" }, "srt_StatementScenarioAxis": { "auth_ref": [ "r215", "r416" ], "lang": { "en-US": { "role": { "label": "Scenario [Axis]", "terseLabel": "Scenario [Axis]" } } }, "localname": "StatementScenarioAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "stringItemType" }, "srt_TitleOfIndividualAxis": { "auth_ref": [ "r149", "r411" ], "lang": { "en-US": { "role": { "label": "Title of Individual [Axis]", "terseLabel": "Title of Individual [Axis]" } } }, "localname": "TitleOfIndividualAxis", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "stringItemType" }, "srt_TitleOfIndividualWithRelationshipToEntityDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Title of Individual [Domain]", "terseLabel": "Title of Individual [Domain]" } } }, "localname": "TitleOfIndividualWithRelationshipToEntityDomain", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "domainItemType" }, "srt_WeightedAverageMember": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Weighted Average [Member]", "terseLabel": "Weighted Average" } } }, "localname": "WeightedAverageMember", "nsuri": "http://fasb.org/srt/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AccountingPoliciesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Accounting Policies [Abstract]" } } }, "localname": "AccountingPoliciesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_AccountsAndOtherReceivablesNetCurrent": { "auth_ref": [], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after allowance, receivable from customers, clients, or other third-parties, and receivables classified as other due within one year or the normal operating cycle, if longer.", "label": "Accounts and Other Receivables, Net, Current", "terseLabel": "Trade and other receivables, net of allowance for doubtful accounts of $7,516 and $7,555, respectively", "verboseLabel": "Accounts and other receivables, net, current" } } }, "localname": "AccountsAndOtherReceivablesNetCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccountsNotesAndLoansReceivableLineItems": { "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": "Accounts, Notes, Loans and Financing Receivable [Line Items]", "terseLabel": "Accounts, Notes, Loans and Financing Receivable [Line Items]" } } }, "localname": "AccountsNotesAndLoansReceivableLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesUniversalServiceFundDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent": { "auth_ref": [ "r35" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.", "label": "Accounts Payable and Accrued Liabilities, Current", "terseLabel": "Accounts payable and accrued liabilities" } } }, "localname": "AccountsPayableAndAccruedLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccountsReceivableNet": { "auth_ref": [ "r21", "r454" ], "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": "Accounts Receivable, after Allowance for Credit Loss", "terseLabel": "Receivables", "verboseLabel": "Net accounts receivables" } } }, "localname": "AccountsReceivableNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesContractBalancesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentExcludingCapitalLeasedAssets": { "auth_ref": [ "r32", "r202" ], "calculation": { "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails": { "order": 2.0, "parentTag": "us-gaap_PropertyPlantAndEquipmentNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land or leased assets).", "label": "Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Excluding Capital Leased Assets", "terseLabel": "Less accumulated depreciation" } } }, "localname": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentExcludingCapitalLeasedAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife": { "auth_ref": [ "r188" ], "lang": { "en-US": { "role": { "documentation": "Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Acquired Finite-lived Intangible Assets, Weighted Average Useful Life", "terseLabel": "Weighted average useful life" } } }, "localname": "AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails" ], "xbrltype": "durationItemType" }, "us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Decrease for Tax Withholding Obligation", "negatedTerseLabel": "Withholding taxes on net share settlements of stock-based compensation" } } }, "localname": "AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]", "terseLabel": "Adjustments to reconcile net earnings (loss) to net cash from operating activities:" } } }, "localname": "AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_AllocatedShareBasedCompensationExpense": { "auth_ref": [ "r264", "r287", "r291" ], "calculation": { "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails": { "order": 2.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.", "label": "Share-based Payment Arrangement, Expense", "negatedTerseLabel": "Stock\u2011based compensation", "terseLabel": "Stock-based compensation expense" } } }, "localname": "AllocatedShareBasedCompensationExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails", "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesStockBasedCompensationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock": { "auth_ref": [ "r150", "r172" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of allowance for credit loss on financing receivable.", "label": "Financing Receivable, Allowance for Credit Loss [Table Text Block]", "terseLabel": "Changes in the Allowance for Doubtful Receivables" } } }, "localname": "AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_AllowanceForDoubtfulAccountsReceivable": { "auth_ref": [ "r151", "r167", "r168", "r171" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of allowance for credit loss on accounts receivable.", "label": "Accounts Receivable, Allowance for Credit Loss", "periodEndLabel": "Balance at end of year", "periodStartLabel": "Balance at beginning of year" } } }, "localname": "AllowanceForDoubtfulAccountsReceivable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAccountsReceivableAndAllowanceForDoubtfulReceivablesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent": { "auth_ref": [ "r26", "r151", "r167" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of allowance for credit loss on accounts receivable, classified as current.", "label": "Accounts Receivable, Allowance for Credit Loss, Current", "terseLabel": "Allowance for doubtful accounts" } } }, "localname": "AllowanceForDoubtfulAccountsReceivableCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheetsParentheticals" ], "xbrltype": "monetaryItemType" }, "us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Accounts Receivable, Allowance for Credit Loss [Roll Forward]", "terseLabel": "Accounts Receivable, Allowance for Credit Loss [Roll Forward]" } } }, "localname": "AllowanceForDoubtfulAccountsReceivableRollforward", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAccountsReceivableAndAllowanceForDoubtfulReceivablesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs": { "auth_ref": [ "r170" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of direct write-downs of accounts receivable charged against the allowance.", "label": "Accounts Receivable, Allowance for Credit Loss, Writeoff", "verboseLabel": "Write-offs net of recoveries" } } }, "localname": "AllowanceForDoubtfulAccountsReceivableWriteOffs", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAccountsReceivableAndAllowanceForDoubtfulReceivablesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AmortizationOfIntangibleAssets": { "auth_ref": [ "r87", "r186", "r194" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.", "label": "Amortization of Intangible Assets", "terseLabel": "Amortization expense" } } }, "localname": "AmortizationOfIntangibleAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssets5YearFutureAmortizationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetImpairmentCharges": { "auth_ref": [ "r87", "r200" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 8.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 4.0, "parentTag": "us-gaap_OperatingExpenses", "weight": 1.0 }, "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails": { "order": 4.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.", "label": "Asset Impairment Charges", "negatedLabel": "Impairment of intangibles and long-lived assets", "terseLabel": "Impairment of intangibles and long-lived assets" } } }, "localname": "AssetImpairmentCharges", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows", "http://www.gci.net/role/ConsolidatedStatementsOfOperations", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetRetirementObligation": { "auth_ref": [ "r206" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.", "label": "Asset Retirement Obligation", "periodEndLabel": "Balance at end of period", "periodStartLabel": "Balance at beginning of period" } } }, "localname": "AssetRetirementObligation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAssetRetirementObligationsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetRetirementObligationAccretionExpense": { "auth_ref": [ "r205", "r209" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.", "label": "Asset Retirement Obligation, Accretion Expense", "terseLabel": "Accretion expense" } } }, "localname": "AssetRetirementObligationAccretionExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAssetRetirementObligationsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetRetirementObligationLiabilitiesIncurred": { "auth_ref": [ "r207" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of asset retirement obligations incurred during the period.", "label": "Asset Retirement Obligation, Liabilities Incurred", "terseLabel": "Liability incurred" } } }, "localname": "AssetRetirementObligationLiabilitiesIncurred", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAssetRetirementObligationsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetRetirementObligationLiabilitiesSettled": { "auth_ref": [ "r208" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset.", "label": "Asset Retirement Obligation, Liabilities Settled", "negatedTerseLabel": "Liability settled" } } }, "localname": "AssetRetirementObligationLiabilitiesSettled", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAssetRetirementObligationsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]", "terseLabel": "Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]" } } }, "localname": "AssetRetirementObligationRollForwardAnalysisRollForward", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAssetRetirementObligationsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_AssetRetirementObligationsPolicy": { "auth_ref": [ "r97", "r210" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for legal obligation associated with retirement of long-lived asset that results from acquisition, construction, or development or from normal operation of long-lived asset. Excludes environmental remediation liability from improper or other-than-normal operation of long-lived asset, obligation arising in connection with leased property that meets definition of lease payments or variable lease payments and from plan to sell or otherwise dispose of a long-lived asset.", "label": "Asset Retirement Obligation [Policy Text Block]", "terseLabel": "Asset Retirement Obligations" } } }, "localname": "AssetRetirementObligationsPolicy", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_Assets": { "auth_ref": [ "r136", "r439", "r455" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.", "label": "Assets", "terseLabel": "Total assets", "totalLabel": "Total assets" } } }, "localname": "Assets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsOtherInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Assets [Abstract]", "terseLabel": "Assets" } } }, "localname": "AssetsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsCurrent": { "auth_ref": [ "r5", "r6", "r50" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.", "label": "Assets, Current", "totalLabel": "Total current assets" } } }, "localname": "AssetsCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_AssetsCurrentAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Assets, Current [Abstract]", "terseLabel": "Current assets:" } } }, "localname": "AssetsCurrentAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_AssetsHeldUnderCapitalLeasesMember": { "auth_ref": [ "r387" ], "lang": { "en-US": { "role": { "documentation": "Long lived property, plant or equipment assets held by a lessee through a capital lease arrangement.", "label": "Assets Held under Capital Leases [Member]", "terseLabel": "Property and equipment under finance leases" } } }, "localname": "AssetsHeldUnderCapitalLeasesMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_AwardTypeAxis": { "auth_ref": [ "r266", "r289" ], "lang": { "en-US": { "role": { "documentation": "Information by type of award under share-based payment arrangement.", "label": "Award Type [Axis]", "terseLabel": "Award Type [Axis]" } } }, "localname": "AwardTypeAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationOutstandingAwardsDetails", "http://www.gci.net/role/StockBasedCompensationRestrictedSharesDetails" ], "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]", "terseLabel": "Balance Sheet Location [Axis]" } } }, "localname": "BalanceSheetLocationAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAccountsReceivableAndAllowanceForDoubtfulReceivablesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BalanceSheetLocationDomain": { "auth_ref": [ "r361", "r364" ], "lang": { "en-US": { "role": { "documentation": "Location in the balance sheet (statement of financial position).", "label": "Balance Sheet Location [Domain]", "terseLabel": "Balance Sheet Location [Domain]" } } }, "localname": "BalanceSheetLocationDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAccountsReceivableAndAllowanceForDoubtfulReceivablesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_BusinessAcquisitionAcquireeDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Identification of the acquiree in a material business combination (or series of individually immaterial business combinations), which may include the name or other type of identification of the acquiree.", "label": "Business Acquisition, Acquiree [Domain]", "terseLabel": "Business Acquisition, Acquiree [Domain]" } } }, "localname": "BusinessAcquisitionAcquireeDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails", "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails", "http://www.gci.net/role/AcquisitionProFormaRevenueAndNetEarningsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_BusinessAcquisitionAxis": { "auth_ref": [ "r324", "r325" ], "lang": { "en-US": { "role": { "documentation": "Information by business combination or series of individually immaterial business combinations.", "label": "Business Acquisition [Axis]", "terseLabel": "Business Acquisition [Axis]" } } }, "localname": "BusinessAcquisitionAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails", "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails", "http://www.gci.net/role/AcquisitionProFormaRevenueAndNetEarningsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BusinessAcquisitionLineItems": { "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": "Business Acquisition [Line Items]", "terseLabel": "Business Acquisition [Line Items]" } } }, "localname": "BusinessAcquisitionLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails", "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails", "http://www.gci.net/role/AcquisitionProFormaRevenueAndNetEarningsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_BusinessAcquisitionProFormaInformationTextBlock": { "auth_ref": [ "r322", "r323" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate.", "label": "Business Acquisition, Pro Forma Information [Table Text Block]", "terseLabel": "Pro Forma Revenue and Net Earnings" } } }, "localname": "BusinessAcquisitionProFormaInformationTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount": { "auth_ref": [ "r337" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.", "label": "Business Acquisition, Goodwill, Expected Tax Deductible Amount", "terseLabel": "Acquired goodwill deductible for income tax purposes" } } }, "localname": "BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss": { "auth_ref": [ "r322", "r323" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.", "label": "Business Acquisition, Pro Forma Net Income (Loss)", "terseLabel": "Net earnings (loss)" } } }, "localname": "BusinessAcquisitionsProFormaNetIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionProFormaRevenueAndNetEarningsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessAcquisitionsProFormaRevenue": { "auth_ref": [ "r322", "r323" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.", "label": "Business Acquisition, Pro Forma Revenue", "terseLabel": "Revenue" } } }, "localname": "BusinessAcquisitionsProFormaRevenue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionProFormaRevenueAndNetEarningsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue": { "auth_ref": [ "r328" ], "calculation": { "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails": { "order": 12.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.", "label": "Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value", "negatedTerseLabel": "Non-controlling interest" } } }, "localname": "BusinessCombinationAcquisitionOfLessThan100PercentNoncontrollingInterestFairValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationConsiderationTransferred1": { "auth_ref": [ "r334", "r335", "r336" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.", "label": "Business Combination, Consideration Transferred", "terseLabel": "Acquisition price" } } }, "localname": "BusinessCombinationConsiderationTransferred1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationDisclosureTextBlock": { "auth_ref": [ "r338" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).", "label": "Business Combination Disclosure [Text Block]", "terseLabel": "Acquisition" } } }, "localname": "BusinessCombinationDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/Acquisition" ], "xbrltype": "textBlockItemType" }, "us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual": { "auth_ref": [ "r321" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.", "label": "Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual", "terseLabel": "Net earnings (loss) from continuing operations" } } }, "localname": "BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents": { "auth_ref": [ "r327" ], "calculation": { "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails": { "order": 1.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest", "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, acquired at the acquisition date. 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": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents", "terseLabel": "Cash and cash equivalents including restricted cash" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables": { "auth_ref": [ "r327" ], "calculation": { "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails": { "order": 2.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables", "terseLabel": "Receivables" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue": { "auth_ref": [ "r327" ], "calculation": { "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails": { "order": 8.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred revenue expected to be recognized as such within one year or the normal operating cycle, if longer, assumed at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue", "negatedTerseLabel": "Deferred revenue" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesDeferredRevenue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities": { "auth_ref": [ "r299", "r327" ], "calculation": { "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails": { "order": 11.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences assumed at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities", "negatedTerseLabel": "Deferred income tax liabilities" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets": { "auth_ref": [ "r327" ], "calculation": { "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails": { "order": 5.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets", "terseLabel": "Intangible assets not subject to amortization" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIndefiniteLivedIntangibleAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles": { "auth_ref": [ "r326", "r327" ], "calculation": { "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails": { "order": 6.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of identifiable intangible assets recognized as of the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles", "terseLabel": "Intangible assets subject to amortization" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails", "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt": { "auth_ref": [ "r327" ], "calculation": { "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails": { "order": 9.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt", "negatedTerseLabel": "Debt, including capital leases" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther": { "auth_ref": [ "r327" ], "calculation": { "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails": { "order": 10.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other", "negatedTerseLabel": "Other liabilities" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets": { "auth_ref": [ "r327" ], "calculation": { "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails": { "order": 7.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets", "terseLabel": "Other assets" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment": { "auth_ref": [ "r326", "r327" ], "calculation": { "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails": { "order": 3.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of property, plant, and equipment recognized as of the acquisition date.", "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment", "terseLabel": "Property and equipment" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest": { "auth_ref": [ "r327" ], "calculation": { "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount recognized as of the acquisition date for the assets, including goodwill, in excess of (less than) the aggregate liabilities assumed, less the noncontrolling interest in the acquiree.", "label": "Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest", "totalLabel": "Net assets acquired including goodwill, less noncontrolling interest" } } }, "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_BusinessCombinationsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Business Combinations [Abstract]" } } }, "localname": "BusinessCombinationsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_CapitalExpendituresIncurredButNotYetPaid": { "auth_ref": [ "r92", "r93", "r94" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Future cash outflow to pay for purchases of fixed assets that have occurred.", "label": "Capital Expenditures Incurred but Not yet Paid", "terseLabel": "Non-cash additions for purchases of property and equipment" } } }, "localname": "CapitalExpendituresIncurredButNotYetPaid", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalLeasesIncomeStatementAmortizationExpense": { "auth_ref": [ "r386", "r480" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The charge for the use of long-lived depreciable capital leased assets for the period.", "label": "Capital Leases, Income Statement, Amortization Expense", "terseLabel": "Depreciation expense on finance leases" } } }, "localname": "CapitalLeasesIncomeStatementAmortizationExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CapitalizedContractCostAmortizationPeriod": { "auth_ref": [ "r174" ], "lang": { "en-US": { "role": { "documentation": "Amortization period of cost capitalized in obtaining or fulfilling contract with customer, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Capitalized Contract Cost, Amortization Period", "terseLabel": "Amortization period" } } }, "localname": "CapitalizedContractCostAmortizationPeriod", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAssetsRecognizedFromCostsToObtainContractWithCustomerDetails" ], "xbrltype": "durationItemType" }, "us-gaap_CapitalizedContractCostLineItems": { "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": "Capitalized Contract Cost [Line Items]", "terseLabel": "Capitalized Contract Cost [Line Items]" } } }, "localname": "CapitalizedContractCostLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAssetsRecognizedFromCostsToObtainContractWithCustomerDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CapitalizedContractCostTable": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about cost capitalized in obtaining or fulfilling contract with customer.", "label": "Capitalized Contract Cost [Table]", "terseLabel": "Capitalized Contract Cost [Table]" } } }, "localname": "CapitalizedContractCostTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAssetsRecognizedFromCostsToObtainContractWithCustomerDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CashAcquiredFromAcquisition": { "auth_ref": [ "r71" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).", "label": "Cash Acquired from Acquisition", "terseLabel": "Cash and restricted cash from acquisition of GCI Holdings" } } }, "localname": "CashAcquiredFromAcquisition", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsAtCarryingValue": { "auth_ref": [ "r4", "r28", "r89" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 }, "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsCashCashEquivalentsAndRestrictedCashDetails": { "order": 1.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.", "label": "Cash and Cash Equivalents, at Carrying Value", "terseLabel": "Cash and cash equivalents" } } }, "localname": "CashAndCashEquivalentsAtCarryingValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsCashCashEquivalentsAndRestrictedCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsFairValueDisclosure": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Cash and Cash Equivalents, Fair Value Disclosure", "terseLabel": "Cash equivalents" } } }, "localname": "CashAndCashEquivalentsFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashAndCashEquivalentsPolicyTextBlock": { "auth_ref": [ "r9", "r90", "r97" ], "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]", "terseLabel": "Cash and Cash Equivalents" } } }, "localname": "CashAndCashEquivalentsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": { "auth_ref": [ "r83", "r89", "r95" ], "calculation": { "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsCashCashEquivalentsAndRestrictedCashDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents", "periodEndLabel": "Cash, cash equivalents and restricted cash at end of period", "periodStartLabel": "Cash, cash equivalents and restricted cash at beginning of period", "totalLabel": "Total cash and cash equivalents and restricted cash at end of period" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows", "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsCashCashEquivalentsAndRestrictedCashDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": { "auth_ref": [ "r83", "r377" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect", "totalLabel": "Net increase (decrease) in cash, cash equivalents and restricted cash" } } }, "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_CashFlowSupplementalDisclosuresTextBlock": { "auth_ref": [ "r96" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for supplemental cash flow activities, including cash, noncash, and part noncash transactions, for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.", "label": "Cash Flow, Supplemental Disclosures [Text Block]", "terseLabel": "Supplemental Disclosures to Consolidated Statements of Cash Flows" } } }, "localname": "CashFlowSupplementalDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlows" ], "xbrltype": "textBlockItemType" }, "us-gaap_ClassOfStockDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Share of stock differentiated by the voting rights the holder receives. Examples include, but are not limited to, common stock, redeemable preferred stock, nonredeemable preferred stock, and convertible stock.", "label": "Class of Stock [Domain]", "terseLabel": "Class of Stock [Domain]" } } }, "localname": "ClassOfStockDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails", "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationOutstandingAwardsDetails", "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ClassOfStockLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Class of Stock [Line Items]", "terseLabel": "Class of Stock [Line Items]" } } }, "localname": "ClassOfStockLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ClassificationOfVariableInterestEntityDomain": { "auth_ref": [ "r346", "r347", "r349", "r350" ], "lang": { "en-US": { "role": { "documentation": "Categorization of Variable Interest Entities (VIE) for consolidation and (or) disclosure purposes, whether individually or in aggregate, by: (1) VIEs consolidated because the entity is the primary beneficiary, (2) VIEs not consolidated because the entity is not the primary beneficiary, and (3) VIEs or potential VIEs that are not consolidated because necessary information is not available. In general, a VIE is a corporation, partnership, trust, or any other legal structure used for business purposes that either (a) does not have equity investors with voting rights or (b) has equity investors that do not provide sufficient financial resources for the entity to support its activities. A VIE often holds financial assets, including loans or receivables, real estate or other property. A VIE may be essentially passive or it may engage in research and development or other activities on behalf of another company.", "label": "Variable Interest Entity, Classification [Domain]", "terseLabel": "Variable Interest Entity, Classification [Domain]" } } }, "localname": "ClassificationOfVariableInterestEntityDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/VariableInterestEntitiesNarrativeDetails", "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CommitmentsAndContingencies": { "auth_ref": [ "r42", "r214", "r445", "r463" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.", "label": "Commitments and Contingencies", "terseLabel": "Commitments and contingencies" } } }, "localname": "CommitmentsAndContingencies", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Commitments and Contingencies Disclosure [Abstract]" } } }, "localname": "CommitmentsAndContingenciesDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": { "auth_ref": [ "r213", "r223" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for commitments and contingencies.", "label": "Commitments and Contingencies Disclosure [Text Block]", "terseLabel": "Commitments and Contingencies" } } }, "localname": "CommitmentsAndContingenciesDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingencies" ], "xbrltype": "textBlockItemType" }, "us-gaap_CommonClassAMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Classification of common stock representing ownership interest in a corporation.", "label": "Common Class A [Member]", "netLabel": "Series A", "terseLabel": "Series A Common Stock" } } }, "localname": "CommonClassAMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails", "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationOutstandingAwardsDetails", "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CommonClassBMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Classification of common stock that has different rights than Common Class A, representing ownership interest in a corporation.", "label": "Common Class B [Member]", "netLabel": "Series B", "terseLabel": "Series B Common Stock" } } }, "localname": "CommonClassBMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationOutstandingAwardsDetails", "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CommonClassCMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Classification of common stock that has different rights than provided to Class A or B shares, representing ownership interest in a corporation.", "label": "Common Class C [Member]", "terseLabel": "Series C Common Stock" } } }, "localname": "CommonClassCMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CommonStockCapitalSharesReservedForFutureIssuance": { "auth_ref": [ "r44" ], "lang": { "en-US": { "role": { "documentation": "Aggregate number of common shares reserved for future issuance.", "label": "Common Stock, Capital Shares Reserved for Future Issuance", "terseLabel": "Shares reserved for issuance upon exercise (in shares)" } } }, "localname": "CommonStockCapitalSharesReservedForFutureIssuance", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationOutstandingAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_CompensationAndEmployeeBenefitPlansTextBlock": { "auth_ref": [ "r256", "r257", "r262", "r292" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans.", "label": "Compensation and Employee Benefit Plans [Text Block]", "terseLabel": "Employee Benefit Plans" } } }, "localname": "CompensationAndEmployeeBenefitPlansTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/EmployeeBenefitPlans" ], "xbrltype": "textBlockItemType" }, "us-gaap_CompensationAndRetirementDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Retirement Benefits [Abstract]" } } }, "localname": "CompensationAndRetirementDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_ConstructionInProgressMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.", "label": "Construction in Progress [Member]", "terseLabel": "Construction in progress" } } }, "localname": "ConstructionInProgressMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ContractWithCustomerLiability": { "auth_ref": [ "r246", "r247", "r252" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.", "label": "Contract with Customer, Liability", "terseLabel": "Deferred revenue" } } }, "localname": "ContractWithCustomerLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesContractBalancesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ContractWithCustomerLiabilityCurrent": { "auth_ref": [ "r246", "r247", "r252" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.", "label": "Contract with Customer, Liability, Current", "terseLabel": "Deferred revenue" } } }, "localname": "ContractWithCustomerLiabilityCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_ContractWithCustomerLiabilityNoncurrent": { "auth_ref": [ "r246", "r247", "r252" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.", "label": "Contract with Customer, Liability, Noncurrent", "terseLabel": "Long-term deferred revenue" } } }, "localname": "ContractWithCustomerLiabilityNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_CorporateAndOtherMember": { "auth_ref": [ "r128" ], "lang": { "en-US": { "role": { "documentation": "Component of an entity that provides financial and operational oversight and administrative support for other segments and other segments not separately reported due to size or nature of business activities. Excludes intersegment elimination and reconciling items.", "label": "Corporate and Other [Member]", "terseLabel": "Corporate and other" } } }, "localname": "CorporateAndOtherMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails", "http://www.gci.net/role/GoodwillAndIntangibleAssetsRollforwardDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsOtherInformationDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsPerformanceMeasuresDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CreditFacilityAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.", "label": "Credit Facility [Axis]", "terseLabel": "Credit Facility [Axis]" } } }, "localname": "CreditFacilityAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CreditFacilityDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.", "label": "Credit Facility [Domain]", "terseLabel": "Credit Facility [Domain]" } } }, "localname": "CreditFacilityDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefitAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Current Federal, State and Local, Tax Expense (Benefit) [Abstract]", "terseLabel": "Current:" } } }, "localname": "CurrentFederalStateAndLocalTaxExpenseBenefitAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_CurrentFederalTaxExpenseBenefit": { "auth_ref": [ "r101", "r314", "r317" ], "calculation": { "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails": { "order": 1.0, "parentTag": "us-gaap_CurrentIncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Current Federal Tax Expense (Benefit)", "negatedTerseLabel": "Federal" } } }, "localname": "CurrentFederalTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CurrentIncomeTaxExpenseBenefit": { "auth_ref": [ "r101", "r314", "r317" ], "calculation": { "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails": { "order": 1.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.", "label": "Current Income Tax Expense (Benefit)", "negatedTotalLabel": "Current income tax benefit (expense)" } } }, "localname": "CurrentIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CurrentStateAndLocalTaxExpenseBenefit": { "auth_ref": [ "r101", "r314", "r317" ], "calculation": { "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails": { "order": 2.0, "parentTag": "us-gaap_CurrentIncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Current State and Local Tax Expense (Benefit)", "negatedTerseLabel": "State and local" } } }, "localname": "CurrentStateAndLocalTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_CustomerRelationshipsMember": { "auth_ref": [ "r331" ], "lang": { "en-US": { "role": { "documentation": "Customer relationship that exists between an entity and its customer, for example, but not limited to, tenant relationships.", "label": "Customer Relationships [Member]", "terseLabel": "Customer relationships" } } }, "localname": "CustomerRelationshipsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails", "http://www.gci.net/role/GoodwillAndIntangibleAssetsIntangibleAssetsSubjectToAmortizationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DebtCurrent": { "auth_ref": [ "r35" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.", "label": "Debt, Current", "terseLabel": "Current portion of debt, net of deferred financing costs (note 9)" } } }, "localname": "DebtCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Debt Disclosure [Abstract]" } } }, "localname": "DebtDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentAxis": { "auth_ref": [ "r12", "r13", "r14", "r440", "r442", "r453" ], "lang": { "en-US": { "role": { "documentation": "Information by type of debt instrument, including, but not limited to, draws against credit facilities.", "label": "Debt Instrument [Axis]", "terseLabel": "Debt Instrument [Axis]" } } }, "localname": "DebtInstrumentAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtSeniorNotesDetails", "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentBasisSpreadOnVariableRate1": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Percentage points added to the reference rate to compute the variable rate on the debt instrument.", "label": "Debt Instrument, Basis Spread on Variable Rate", "terseLabel": "Basis spread on variable rate (as a percent)" } } }, "localname": "DebtInstrumentBasisSpreadOnVariableRate1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails", "http://www.gci.net/role/DebtWellsFargoNotePayableDetails" ], "xbrltype": "percentItemType" }, "us-gaap_DebtInstrumentCarryingAmount": { "auth_ref": [ "r14", "r231", "r442", "r453" ], "calculation": { "http://www.gci.net/role/DebtFiveYearMaturitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.", "label": "Long-term Debt, Gross", "terseLabel": "Carrying value", "totalLabel": "Total debt" } } }, "localname": "DebtInstrumentCarryingAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtFiveYearMaturitiesDetails", "http://www.gci.net/role/DebtSummaryOfDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtInstrumentFaceAmount": { "auth_ref": [ "r381", "r383" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Face (par) amount of debt instrument at time of issuance.", "label": "Debt Instrument, Face Amount", "terseLabel": "Outstanding principal", "verboseLabel": "Face amount of debt" } } }, "localname": "DebtInstrumentFaceAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtSeniorNotesDetails", "http://www.gci.net/role/DebtSummaryOfDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtInstrumentFairValue": { "auth_ref": [ "r372" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.", "label": "Debt Instrument, Fair Value Disclosure", "verboseLabel": "Fair value of debt" } } }, "localname": "DebtInstrumentFairValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtFairValueOfDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DebtInstrumentInterestRateStatedPercentage": { "auth_ref": [ "r39" ], "lang": { "en-US": { "role": { "documentation": "Contractual interest rate for funds borrowed, under the debt agreement.", "label": "Debt Instrument, Interest Rate, Stated Percentage", "terseLabel": "Interest rate" } } }, "localname": "DebtInstrumentInterestRateStatedPercentage", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/DebtSeniorNotesDetails", "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "percentItemType" }, "us-gaap_DebtInstrumentLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Debt Instrument [Line Items]", "terseLabel": "Debt Instrument [Line Items]" } } }, "localname": "DebtInstrumentLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtFairValueOfDebtDetails", "http://www.gci.net/role/DebtSeniorNotesDetails", "http://www.gci.net/role/DebtSummaryOfDebtDetails", "http://www.gci.net/role/DebtWellsFargoNotePayableDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentNameDomain": { "auth_ref": [ "r40" ], "lang": { "en-US": { "role": { "documentation": "The name for the particular debt instrument or borrowing that distinguishes it from other debt instruments or borrowings, including draws against credit facilities.", "label": "Debt Instrument, Name [Domain]", "terseLabel": "Debt Instrument, Name [Domain]" } } }, "localname": "DebtInstrumentNameDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtSeniorNotesDetails", "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_DebtInstrumentTable": { "auth_ref": [ "r40", "r105", "r238", "r241", "r242", "r243", "r380", "r381", "r383", "r451" ], "lang": { "en-US": { "role": { "documentation": "A table or schedule providing information pertaining to long-term debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.", "label": "Schedule of Long-term Debt Instruments [Table]", "terseLabel": "Schedule of Long-term Debt Instruments [Table]" } } }, "localname": "DebtInstrumentTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtFairValueOfDebtDetails", "http://www.gci.net/role/DebtSeniorNotesDetails", "http://www.gci.net/role/DebtSummaryOfDebtDetails", "http://www.gci.net/role/DebtWellsFargoNotePayableDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DebtInstrumentTerm": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Debt Instrument, Term", "terseLabel": "Term of debt" } } }, "localname": "DebtInstrumentTerm", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/DebtMarginLoanDetails" ], "xbrltype": "durationItemType" }, "us-gaap_DebtInstrumentUnamortizedPremium": { "auth_ref": [ "r380", "r383" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after accumulated amortization, of debt premium.", "label": "Debt Instrument, Unamortized Premium", "terseLabel": "Aggregate unamortized premium" } } }, "localname": "DebtInstrumentUnamortizedPremium", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtSeniorNotesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredFederalIncomeTaxExpenseBenefit": { "auth_ref": [ "r101", "r315", "r317" ], "calculation": { "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails": { "order": 1.0, "parentTag": "us-gaap_DeferredIncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Deferred Federal Income Tax Expense (Benefit)", "negatedTerseLabel": "Federal" } } }, "localname": "DeferredFederalIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredFinanceCostsNet": { "auth_ref": [ "r33", "r382" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.", "label": "Debt Issuance Costs, Net", "negatedTerseLabel": "Deferred financing costs" } } }, "localname": "DeferredFinanceCostsNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtSummaryOfDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxExpenseBenefit": { "auth_ref": [ "r87", "r101", "r315", "r317" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails": { "order": 2.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Deferred Income Tax Expense (Benefit)", "negatedTotalLabel": "Deferred tax benefit (expense)", "terseLabel": "Deferred income tax expense (benefit)" } } }, "localname": "DeferredIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows", "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]", "terseLabel": "Deferred:" } } }, "localname": "DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DeferredIncomeTaxLiabilities": { "auth_ref": [ "r16", "r17", "r305", "r441", "r452" ], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 2.0, "parentTag": "us-gaap_DeferredTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences.", "label": "Deferred Tax Liabilities, Gross", "totalLabel": "Deferred tax liabilities" } } }, "localname": "DeferredIncomeTaxLiabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredIncomeTaxLiabilitiesNet": { "auth_ref": [ "r300", "r309" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 5.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.", "label": "Deferred Income Tax Liabilities, Net", "terseLabel": "Deferred income tax liabilities" } } }, "localname": "DeferredIncomeTaxLiabilitiesNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit": { "auth_ref": [ "r101", "r315", "r317" ], "calculation": { "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails": { "order": 2.0, "parentTag": "us-gaap_DeferredIncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.", "label": "Deferred State and Local Income Tax Expense (Benefit)", "negatedTerseLabel": "State and local" } } }, "localname": "DeferredStateAndLocalIncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsDeferredIncome": { "auth_ref": [ "r294", "r312", "r313" ], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 2.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "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": "Deferred Tax Assets, Deferred Income", "terseLabel": "Deferred revenue" } } }, "localname": "DeferredTaxAssetsDeferredIncome", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsGross": { "auth_ref": [ "r306" ], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "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 temporary differences and carryforwards.", "label": "Deferred Tax Assets, Gross", "totalLabel": "Deferred tax assets" } } }, "localname": "DeferredTaxAssetsGross", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsGrossAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Deferred Tax Assets, Gross [Abstract]", "terseLabel": "Deferred tax assets:" } } }, "localname": "DeferredTaxAssetsGrossAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DeferredTaxAssetsNet": { "auth_ref": [ "r307" ], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_DeferredTaxLiabilities", "weight": -1.0 } }, "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": "Deferred Tax Assets, Net of Valuation Allowance", "totalLabel": "Net deferred tax assets" } } }, "localname": "DeferredTaxAssetsNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsOperatingLossCarryforwards": { "auth_ref": [ "r293", "r312", "r313" ], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "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": "Deferred Tax Assets, Operating Loss Carryforwards", "terseLabel": "Loss and capital carryforwards" } } }, "localname": "DeferredTaxAssetsOperatingLossCarryforwards", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are not subject to expiration dates.", "label": "Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration", "terseLabel": "Carryforwards with no expiration" } } }, "localname": "DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are subject to expiration dates.", "label": "Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration", "terseLabel": "Carryforwards subject to expiration" } } }, "localname": "DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsOther": { "auth_ref": [ "r294", "r312", "r313" ], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 7.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.", "label": "Deferred Tax Assets, Other", "terseLabel": "Other future deductible amounts" } } }, "localname": "DeferredTaxAssetsOther", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost": { "auth_ref": [ "r293", "r312", "r313" ], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 3.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "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 share-based compensation.", "label": "Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost", "terseLabel": "Accrued stock compensation" } } }, "localname": "DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther": { "auth_ref": [ "r293", "r312", "r313" ], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 6.0, "parentTag": "us-gaap_DeferredTaxAssetsGross", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from reserves and accruals, classified as other.", "label": "Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other", "terseLabel": "Other accrued liabilities" } } }, "localname": "DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxAssetsValuationAllowance": { "auth_ref": [ "r308" ], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 2.0, "parentTag": "us-gaap_DeferredTaxAssetsNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.", "label": "Deferred Tax Assets, Valuation Allowance", "negatedTerseLabel": "Valuation allowance" } } }, "localname": "DeferredTaxAssetsValuationAllowance", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilities": { "auth_ref": [ "r300", "r309" ], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.", "label": "Deferred Tax Liabilities, Net", "totalLabel": "Net deferred tax liabilities" } } }, "localname": "DeferredTaxLiabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets": { "auth_ref": [ "r294", "r312", "r313" ], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 3.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.", "label": "Deferred Tax Liabilities, Intangible Assets", "terseLabel": "Intangible assets" } } }, "localname": "DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesInvestments": { "auth_ref": [], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 1.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from investments (excludes investments in subsidiaries and equity method investments).", "label": "Deferred Tax Liabilities, Investments", "terseLabel": "Investments" } } }, "localname": "DeferredTaxLiabilitiesInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesLeasingArrangements": { "auth_ref": [ "r294", "r312", "r313" ], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 4.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from leasing arrangements.", "label": "Deferred Tax Liabilities, Leasing Arrangements", "terseLabel": "Operating lease ROU assets" } } }, "localname": "DeferredTaxLiabilitiesLeasingArrangements", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DeferredTaxLiabilitiesNetAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Deferred Tax Liabilities, Net [Abstract]", "terseLabel": "Deferred tax liabilities" } } }, "localname": "DeferredTaxLiabilitiesNetAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment": { "auth_ref": [ "r294", "r312", "r313" ], "calculation": { "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": { "order": 2.0, "parentTag": "us-gaap_DeferredIncomeTaxLiabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.", "label": "Deferred Tax Liabilities, Property, Plant and Equipment", "terseLabel": "Fixed assets" } } }, "localname": "DeferredTaxLiabilitiesPropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of discretionary contributions made by an employer to a defined contribution plan.", "label": "Defined Contribution Plan, Employer Discretionary Contribution Amount", "verboseLabel": "Cash contributions" } } }, "localname": "DefinedContributionPlanEmployerDiscretionaryContributionAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/EmployeeBenefitPlansDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_Depreciation": { "auth_ref": [ "r87", "r201" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.", "label": "Depreciation", "terseLabel": "Depreciation expense" } } }, "localname": "Depreciation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DepreciationDepletionAndAmortization": { "auth_ref": [ "r87", "r133" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 3.0, "parentTag": "us-gaap_OperatingExpenses", "weight": 1.0 }, "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails": { "order": 3.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.", "label": "Depreciation, Depletion and Amortization", "negatedTerseLabel": "Depreciation and amortization", "terseLabel": "Depreciation and amortization expense", "verboseLabel": "Depreciation and amortization" } } }, "localname": "DepreciationDepletionAndAmortization", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows", "http://www.gci.net/role/ConsolidatedStatementsOfOperations", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeCapPrice": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The cap rate on a price risk derivative such as a cap or collar. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract.", "label": "Derivative, Cap Price", "terseLabel": "Variable forward contract, cap price (in dollars per share)" } } }, "localname": "DerivativeCapPrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueNarrativeDetails" ], "xbrltype": "perUnitItemType" }, "us-gaap_DerivativeFairValueOfDerivativeLiability": { "auth_ref": [ "r51", "r55", "r363", "r420" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.", "label": "Derivative Liability, Fair Value, Gross Liability", "terseLabel": "Derivative instrument liability" } } }, "localname": "DerivativeFairValueOfDerivativeLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeFloorPrice": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Floor rate on a price risk derivative such as a floor or a collar. A payment or receipt is triggered if the market rate falls below the floor rate on the contract.", "label": "Derivative, Floor Price", "terseLabel": "Variable forward contract, floor price (in dollars per share)" } } }, "localname": "DerivativeFloorPrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueNarrativeDetails" ], "xbrltype": "perUnitItemType" }, "us-gaap_DerivativeGainLossOnDerivativeNet": { "auth_ref": [ "r362" ], "calculation": { "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfRealizedAndUnrealizedGainsLossesDetails": { "order": 3.0, "parentTag": "gcillc_GainLossOnFinancialInstruments", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.", "label": "Derivative, Gain (Loss) on Derivative, Net", "terseLabel": "Derivative instruments" } } }, "localname": "DerivativeGainLossOnDerivativeNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfRealizedAndUnrealizedGainsLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeLiabilities": { "auth_ref": [ "r52", "r53", "r372" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 7.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.", "label": "Derivative Liability", "verboseLabel": "Derivative Instrument (note 5)" } } }, "localname": "DerivativeLiabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_DerivativeTermOfContract": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Derivative, Term of Contract", "terseLabel": "Variable forward contract, term" } } }, "localname": "DerivativeTermOfContract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueNarrativeDetails" ], "xbrltype": "durationItemType" }, "us-gaap_DerivativesPolicyTextBlock": { "auth_ref": [ "r97", "r108", "r357", "r358", "r359", "r360", "r365" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for its derivative instruments and hedging activities.", "label": "Derivatives, Policy [Policy Text Block]", "terseLabel": "Derivative Instruments" } } }, "localname": "DerivativesPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_DisaggregationOfRevenueLineItems": { "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": "Disaggregation of Revenue [Line Items]", "terseLabel": "Disaggregation of Revenue [Line Items]" } } }, "localname": "DisaggregationOfRevenueLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesNatureOfServicesAndProductsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DisaggregationOfRevenueTable": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.", "label": "Disaggregation of Revenue [Table]", "terseLabel": "Disaggregation of Revenue [Table]" } } }, "localname": "DisaggregationOfRevenueTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesNatureOfServicesAndProductsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_DisaggregationOfRevenueTableTextBlock": { "auth_ref": [ "r251" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.", "label": "Disaggregation of Revenue [Table Text Block]", "terseLabel": "Revenue from Contracts with Customers by Customer Type and Service Offerings" } } }, "localname": "DisaggregationOfRevenueTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": { "auth_ref": [ "r292" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for share-based payment arrangement.", "label": "Share-based Payment Arrangement [Text Block]", "terseLabel": "Stock-Based Compensation" } } }, "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensation" ], "xbrltype": "textBlockItemType" }, "us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Share-based Payment Arrangement [Abstract]" } } }, "localname": "DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_DueToAffiliateNoncurrent": { "auth_ref": [ "r15", "r102", "r409", "r413", "r470" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 8.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of receivables owed to an entity that is affiliated with the reporting entity by means of direct or indirect ownership, which are usually due after one year (or one business cycle, if longer).", "label": "Due to Affiliate, Noncurrent", "terseLabel": "Loans from GCI Liberty" } } }, "localname": "DueToAffiliateNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount": { "auth_ref": [ "r301" ], "calculation": { "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails": { "order": 6.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to Tax Cuts and Jobs Act.", "label": "Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Amount", "negatedLabel": "Change in tax rate due to Tax Act" } } }, "localname": "EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Amount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1": { "auth_ref": [ "r288" ], "lang": { "en-US": { "role": { "documentation": "Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition", "terseLabel": "Weighted average period for compensation cost to be recognized" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationOutstandingAwardsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions": { "auth_ref": [ "r288" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.", "label": "Share-based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount", "terseLabel": "Unrecognized compensation cost related to unvested restricted shares" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationOutstandingAwardsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions": { "auth_ref": [ "r288" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cost to be recognized for option under share-based payment arrangement.", "label": "Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount", "terseLabel": "Unrecognized compensation cost related to unvested options" } } }, "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationOutstandingAwardsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EmployeeStockOptionMember": { "auth_ref": [ "r286" ], "lang": { "en-US": { "role": { "documentation": "Share-based payment arrangement granting right, subject to vesting and other restrictions, to purchase or sell certain number of shares at predetermined price for specified period of time.", "label": "Share-based Payment Arrangement, Option [Member]", "terseLabel": "Options" } } }, "localname": "EmployeeStockOptionMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationOutstandingAwardsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_EquityComponentDomain": { "auth_ref": [ "r237" ], "lang": { "en-US": { "role": { "documentation": "Components of equity are the parts of the total Equity balance including that which is allocated to common, preferred, treasury stock, retained earnings, etc.", "label": "Equity Component [Domain]", "terseLabel": "Equity Component [Domain]" } } }, "localname": "EquityComponentDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "domainItemType" }, "us-gaap_EquityMethodInvestmentOwnershipPercentage": { "auth_ref": [ "r160" ], "lang": { "en-US": { "role": { "documentation": "The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.", "label": "Equity Method Investment, Ownership Percentage", "terseLabel": "Percentage ownership" } } }, "localname": "EquityMethodInvestmentOwnershipPercentage", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLendingTreeDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails" ], "xbrltype": "percentItemType" }, "us-gaap_EquityMethodInvestmentQuotedMarketValue": { "auth_ref": [ "r163" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "This item represents the aggregate value of each identified investment accounted for under the equity method of accounting based on the quoted market price for those investments in common stock for which a quoted market price is available.", "label": "Equity Method Investment, Quoted Market Value", "terseLabel": "Market value" } } }, "localname": "EquityMethodInvestmentQuotedMarketValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLendingTreeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationAssets": { "auth_ref": [ "r2", "r99", "r159", "r164", "r375" ], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of assets reported by an equity method investment of the entity.", "label": "Equity Method Investment, Summarized Financial Information, Assets", "totalLabel": "Total assets" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets": { "auth_ref": [ "r2", "r99", "r159", "r164", "r375" ], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": 1.0, "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of current assets reported by an equity method investment of the entity.", "label": "Equity Method Investment, Summarized Financial Information, Current Assets", "terseLabel": "Current assets" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationEquity": { "auth_ref": [ "r2", "r109", "r164", "r375", "r376" ], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": 4.0, "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of equity, including noncontrolling interest, reported by an equity method investment of the entity.", "label": "Equity Method Investment Summarized Financial Information, Equity", "terseLabel": "Equity" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationEquity", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity": { "auth_ref": [ "r2", "r99", "r159", "r164", "r375" ], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The amount of liabilities and equity reported by an equity method investment of the entity.", "label": "Equity Method Investment, Summarized Financial Information, Liabilities and Equity", "totalLabel": "Total liabilities and shareholders' equity" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationLiabilitiesAndEquity", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss": { "auth_ref": [ "r2", "r99", "r159", "r164", "r375" ], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The amount of net income (loss) reported by an equity method investment of the entity.", "label": "Equity Method Investment, Summarized Financial Information, Net Income (Loss)", "totalLabel": "Net earnings (loss)" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationRevenue": { "auth_ref": [ "r2", "r164" ], "calculation": { "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": 1.0, "parentTag": "gcillc_EquityMethodInvestmentSummarizedFinancialInformationOperatingIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of revenue from sale of product and rendering of service reported by equity method investee.", "label": "Equity Method Investment, Summarized Financial Information, Revenue", "terseLabel": "Revenue" } } }, "localname": "EquityMethodInvestmentSummarizedFinancialInformationRevenue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquityMethodInvestments": { "auth_ref": [ "r29", "r137", "r158" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails": { "order": 2.0, "parentTag": "us-gaap_EquityMethodInvestmentSummarizedFinancialInformationAssets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.", "label": "Equity Method Investments", "netLabel": "Carrying amount", "terseLabel": "Investment in Charter, accounted for using the equity method", "verboseLabel": "Investment in affiliates" } } }, "localname": "EquityMethodInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsOtherInformationDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLendingTreeDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Equity Method Investments and Joint Ventures [Abstract]" } } }, "localname": "EquityMethodInvestmentsAndJointVenturesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_EquityMethodInvestmentsDisclosureTextBlock": { "auth_ref": [ "r166", "r355" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group.", "label": "Equity Method Investments and Joint Ventures Disclosure [Text Block]", "terseLabel": "Investments in Affiliates Accounted for Using the Equity Method" } } }, "localname": "EquityMethodInvestmentsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethod" ], "xbrltype": "textBlockItemType" }, "us-gaap_EquityMethodInvestmentsFairValueDisclosure": { "auth_ref": [ "r157" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value portion of investments accounted under the equity method.", "label": "Equity Method Investments, Fair Value Disclosure", "terseLabel": "Investment in Liberty Broadband" } } }, "localname": "EquityMethodInvestmentsFairValueDisclosure", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquityMethodInvestmentsTextBlock": { "auth_ref": [ "r165" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information.", "label": "Equity Method Investments [Table Text Block]", "terseLabel": "Equity Method Investments" } } }, "localname": "EquityMethodInvestmentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_EquitySecuritiesFvNi": { "auth_ref": [ "r371" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).", "label": "Equity Securities, FV-NI", "terseLabel": "Equity securities" } } }, "localname": "EquitySecuritiesFvNi", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfAssetsAndLiabilitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_EquitySecuritiesFvNiGainLoss": { "auth_ref": [ "r156" ], "calculation": { "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfRealizedAndUnrealizedGainsLossesDetails": { "order": 1.0, "parentTag": "gcillc_GainLossOnFinancialInstruments", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).", "label": "Equity Securities, FV-NI, Gain (Loss)", "terseLabel": "Equity securities" } } }, "localname": "EquitySecuritiesFvNiGainLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfRealizedAndUnrealizedGainsLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Fair Value Measurement Inputs and Valuation Techniques [Line Items]", "terseLabel": "Fair Value Measurement Inputs and Valuation Techniques [Line Items]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable": { "auth_ref": [ "r369" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.", "label": "Fair Value Measurement Inputs and Valuation Techniques [Table]", "terseLabel": "Fair Value Measurement Inputs and Valuation Techniques [Table]" } } }, "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]", "terseLabel": "Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]" } } }, "localname": "FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfAssetsAndLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByBalanceSheetGroupingTable": { "auth_ref": [ "r367", "r373", "r374" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.", "label": "Fair Value, by Balance Sheet Grouping [Table]", "terseLabel": "Fair Value, by Balance Sheet Grouping [Table]" } } }, "localname": "FairValueByBalanceSheetGroupingTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfAssetsAndLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueByBalanceSheetGroupingTextBlock": { "auth_ref": [ "r367", "r373" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.", "label": "Fair Value, by Balance Sheet Grouping [Table Text Block]", "terseLabel": "Fair Value, by Balance Sheet Grouping" } } }, "localname": "FairValueByBalanceSheetGroupingTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueByFairValueHierarchyLevelAxis": { "auth_ref": [ "r258", "r259", "r261", "r368", "r417" ], "lang": { "en-US": { "role": { "documentation": "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient.", "label": "Fair Value Hierarchy and NAV [Axis]", "terseLabel": "Fair Value Hierarchy and NAV [Axis]" } } }, "localname": "FairValueByFairValueHierarchyLevelAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfAssetsAndLiabilitiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosuresAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Fair Value Disclosures [Abstract]" } } }, "localname": "FairValueDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_FairValueDisclosuresTextBlock": { "auth_ref": [ "r370" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.", "label": "Fair Value Disclosures [Text Block]", "terseLabel": "Assets and Liabilities Measured at Fair Value" } } }, "localname": "FairValueDisclosuresTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValue" ], "xbrltype": "textBlockItemType" }, "us-gaap_FairValueInputsLevel1Member": { "auth_ref": [ "r258", "r259", "r261", "r368", "r418" ], "lang": { "en-US": { "role": { "documentation": "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.", "label": "Fair Value, Inputs, Level 1 [Member]", "terseLabel": "Quoted prices in active markets for identical assets (Level 1)" } } }, "localname": "FairValueInputsLevel1Member", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfAssetsAndLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueInputsLevel2Member": { "auth_ref": [ "r258", "r259", "r261", "r368", "r419" ], "lang": { "en-US": { "role": { "documentation": "Inputs other than quoted prices included within level 1 that are observable for an asset or liability, either directly or indirectly, including, but not limited to, quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in inactive markets.", "label": "Fair Value, Inputs, Level 2 [Member]", "terseLabel": "Significant other observable inputs (Level 2)" } } }, "localname": "FairValueInputsLevel2Member", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfAssetsAndLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Categories used to prioritize the inputs to valuation techniques to measure fair value.", "label": "Fair Value Hierarchy and NAV [Domain]", "terseLabel": "Fair Value Hierarchy and NAV [Domain]" } } }, "localname": "FairValueMeasurementsFairValueHierarchyDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfAssetsAndLiabilitiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FinanceLeaseInterestExpense": { "auth_ref": [ "r392", "r398", "r406" ], "calculation": { "http://www.gci.net/role/LeasesLeaseExpenseDetails": { "order": 2.0, "parentTag": "gcillc_FinanceLeaseCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of interest expense on finance lease liability.", "label": "Finance Lease, Interest Expense", "terseLabel": "Interest on lease liabilities" } } }, "localname": "FinanceLeaseInterestExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesLeaseExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseInterestPaymentOnLiability": { "auth_ref": [ "r394", "r400" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of interest paid on finance lease liability.", "label": "Finance Lease, Interest Payment on Liability", "terseLabel": "Operating cash flows from finance leases" } } }, "localname": "FinanceLeaseInterestPaymentOnLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Finance Lease, Liability, Payment, Due [Abstract]", "terseLabel": "Finance Leases" } } }, "localname": "FinanceLeaseLiabilitiesPaymentsDueAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FinanceLeaseLiability": { "auth_ref": [ "r391", "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetailsCalc2": { "order": 2.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 }, "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from finance lease.", "label": "Finance Lease, Liability", "terseLabel": "Total lease liabilities", "totalLabel": "Total finance lease liabilities" } } }, "localname": "FinanceLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails", "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityCurrent": { "auth_ref": [ "r391" ], "calculation": { "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails": { "order": 1.0, "parentTag": "us-gaap_FinanceLeaseLiability", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.", "label": "Finance Lease, Liability, Current", "terseLabel": "Current obligations under finance leases" } } }, "localname": "FinanceLeaseLiabilityCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock": { "auth_ref": [ "r405" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position.", "label": "Finance Lease, Liability, Maturity [Table Text Block]", "terseLabel": "Future Lease Payments on Finance Leases" } } }, "localname": "FinanceLeaseLiabilityMaturityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_FinanceLeaseLiabilityNoncurrent": { "auth_ref": [ "r391" ], "calculation": { "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails": { "order": 2.0, "parentTag": "us-gaap_FinanceLeaseLiability", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent.", "label": "Finance Lease, Liability, Noncurrent", "verboseLabel": "Obligations under finance leases" } } }, "localname": "FinanceLeaseLiabilityNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDue": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.gci.net/role/LeasesFutureLeasePaymentsDetailsCalc2": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease.", "label": "Finance Lease, Liability, Payment, Due", "totalLabel": "Total lease payments" } } }, "localname": "FinanceLeaseLiabilityPaymentsDue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 6.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due after fifth fiscal year following latest fiscal year.", "label": "Finance Lease, Liability, Payments, Due after Year Five", "terseLabel": "Thereafter" } } }, "localname": "FinanceLeaseLiabilityPaymentsDueAfterYearFive", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 1.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in next fiscal year following latest fiscal year.", "label": "Finance Lease, Liability, Payments, Due Next Twelve Months", "terseLabel": "2020" } } }, "localname": "FinanceLeaseLiabilityPaymentsDueNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 5.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in fifth fiscal year following latest fiscal year.", "label": "Finance Lease, Liability, Payments, Due Year Five", "terseLabel": "2024" } } }, "localname": "FinanceLeaseLiabilityPaymentsDueYearFive", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 4.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in fourth fiscal year following latest fiscal year.", "label": "Finance Lease, Liability, Payments, Due Year Four", "terseLabel": "2023" } } }, "localname": "FinanceLeaseLiabilityPaymentsDueYearFour", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 3.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in third fiscal year following latest fiscal year.", "label": "Finance Lease, Liability, Payments, Due Year Three", "terseLabel": "2022" } } }, "localname": "FinanceLeaseLiabilityPaymentsDueYearThree", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 2.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in second fiscal year following latest fiscal year.", "label": "Finance Lease, Liability, Payments, Due Year Two", "terseLabel": "2021" } } }, "localname": "FinanceLeaseLiabilityPaymentsDueYearTwo", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetailsCalc2": { "order": 1.0, "parentTag": "us-gaap_FinanceLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance lease.", "label": "Finance Lease, Liability, Undiscounted Excess Amount", "negatedTerseLabel": "Less: imputed interest" } } }, "localname": "FinanceLeaseLiabilityUndiscountedExcessAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeasePrincipalPayments": { "auth_ref": [ "r393", "r400" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash outflow for principal payment on finance lease.", "label": "Finance Lease, Principal Payments", "terseLabel": "Financing cash flows from finance leases" } } }, "localname": "FinanceLeasePrincipalPayments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseRightOfUseAsset": { "auth_ref": [ "r390" ], "calculation": { "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's right to use underlying asset under finance lease.", "label": "Finance Lease, Right-of-Use Asset", "totalLabel": "Property and equipment, net" } } }, "localname": "FinanceLeaseRightOfUseAsset", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseRightOfUseAssetAmortization": { "auth_ref": [ "r392", "r398", "r406" ], "calculation": { "http://www.gci.net/role/LeasesLeaseExpenseDetails": { "order": 1.0, "parentTag": "gcillc_FinanceLeaseCost", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization expense attributable to right-of-use asset from finance lease.", "label": "Finance Lease, Right-of-Use Asset, Amortization", "terseLabel": "Depreciation of leased assets" } } }, "localname": "FinanceLeaseRightOfUseAssetAmortization", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesLeaseExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent": { "auth_ref": [ "r403", "r406" ], "lang": { "en-US": { "role": { "documentation": "Weighted average discount rate for finance lease calculated at point in time.", "label": "Finance Lease, Weighted Average Discount Rate, Percent", "terseLabel": "Finance leases" } } }, "localname": "FinanceLeaseWeightedAverageDiscountRatePercent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesWeightedAverageTermAndDiscountRateDetails" ], "xbrltype": "percentItemType" }, "us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1": { "auth_ref": [ "r402", "r406" ], "lang": { "en-US": { "role": { "documentation": "Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Finance Lease, Weighted Average Remaining Lease Term", "terseLabel": "Finance leases" } } }, "localname": "FinanceLeaseWeightedAverageRemainingLeaseTerm1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesWeightedAverageTermAndDiscountRateDetails" ], "xbrltype": "durationItemType" }, "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": "Finite-Lived Intangible Asset, Useful Life", "terseLabel": "Estimated useful life" } } }, "localname": "FiniteLivedIntangibleAssetUsefulLife", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesIntangibleAssetsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization": { "auth_ref": [ "r193" ], "calculation": { "http://www.gci.net/role/GoodwillAndIntangibleAssetsIntangibleAssetsSubjectToAmortizationDetails": { "order": 2.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Finite-Lived Intangible Assets, Accumulated Amortization", "negatedTerseLabel": "Accumulated amortization" } } }, "localname": "FiniteLivedIntangibleAssetsAccumulatedAmortization", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsIntangibleAssetsSubjectToAmortizationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths": { "auth_ref": [ "r195" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months", "terseLabel": "2020" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssets5YearFutureAmortizationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive": { "auth_ref": [ "r195" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Finite-Lived Intangible Assets, Amortization Expense, Year Five", "terseLabel": "2024" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearFive", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssets5YearFutureAmortizationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour": { "auth_ref": [ "r195" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Finite-Lived Intangible Assets, Amortization Expense, Year Four", "terseLabel": "2023" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearFour", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssets5YearFutureAmortizationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree": { "auth_ref": [ "r195" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Finite-Lived Intangible Assets, Amortization Expense, Year Three", "terseLabel": "2022" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearThree", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssets5YearFutureAmortizationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo": { "auth_ref": [ "r195" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Finite-Lived Intangible Assets, Amortization Expense, Year Two", "terseLabel": "2021" } } }, "localname": "FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssets5YearFutureAmortizationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis": { "auth_ref": [ "r187", "r190", "r193", "r197", "r423" ], "lang": { "en-US": { "role": { "documentation": "Information by major type or class of finite-lived intangible assets.", "label": "Finite-Lived Intangible Assets by Major Class [Axis]", "terseLabel": "Finite-Lived Intangible Assets by Major Class [Axis]" } } }, "localname": "FiniteLivedIntangibleAssetsByMajorClassAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails", "http://www.gci.net/role/GoodwillAndIntangibleAssetsIntangibleAssetsSubjectToAmortizationDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]", "terseLabel": "Years ending December 31," } } }, "localname": "FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssets5YearFutureAmortizationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsGross": { "auth_ref": [ "r193", "r423" ], "calculation": { "http://www.gci.net/role/GoodwillAndIntangibleAssetsIntangibleAssetsSubjectToAmortizationDetails": { "order": 1.0, "parentTag": "us-gaap_FiniteLivedIntangibleAssetsNet", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Finite-Lived Intangible Assets, Gross", "terseLabel": "Gross carrying amount" } } }, "localname": "FiniteLivedIntangibleAssetsGross", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsIntangibleAssetsSubjectToAmortizationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_FiniteLivedIntangibleAssetsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Finite-Lived Intangible Assets [Line Items]", "terseLabel": "Finite-Lived Intangible Assets [Line Items]" } } }, "localname": "FiniteLivedIntangibleAssetsLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsIntangibleAssetsSubjectToAmortizationDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain": { "auth_ref": [ "r187", "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]", "terseLabel": "Finite-Lived Intangible Assets, Major Class Name [Domain]" } } }, "localname": "FiniteLivedIntangibleAssetsMajorClassNameDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails", "http://www.gci.net/role/GoodwillAndIntangibleAssetsIntangibleAssetsSubjectToAmortizationDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_FiniteLivedIntangibleAssetsNet": { "auth_ref": [ "r193" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 6.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://www.gci.net/role/GoodwillAndIntangibleAssetsIntangibleAssetsSubjectToAmortizationDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Finite-Lived Intangible Assets, Net", "totalLabel": "Net carrying amount", "verboseLabel": "Intangible assets subject to amortization, net (note 8)" } } }, "localname": "FiniteLivedIntangibleAssetsNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/GoodwillAndIntangibleAssetsIntangibleAssetsSubjectToAmortizationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainLossOnInvestments": { "auth_ref": [ "r68", "r87", "r154" ], "calculation": { "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfRealizedAndUnrealizedGainsLossesDetails": { "order": 2.0, "parentTag": "gcillc_GainLossOnFinancialInstruments", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of realized and unrealized gain (loss) on investment.", "label": "Gain (Loss) on Investments", "verboseLabel": "Investment in Liberty Broadband" } } }, "localname": "GainLossOnInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueScheduleOfRealizedAndUnrealizedGainsLossesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GainLossOnInvestmentsTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of realized and unrealized gain (loss) on investment in security.", "label": "Gain (Loss) on Securities [Table Text Block]", "terseLabel": "Schedule of Realized and Unrealized Gains (Losses) on Financial Instruments" } } }, "localname": "GainLossOnInvestmentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AssetsAndLiabilitiesMeasuredAtFairValueTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_Goodwill": { "auth_ref": [ "r175", "r177" ], "calculation": { "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails": { "order": 4.0, "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedLessNoncontrollingInterest", "weight": 1.0 }, "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "gcillc_IndefiniteLivedIntangibleAssetsIncludingGoodwill", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.", "label": "Goodwill", "periodEndLabel": "Balance at end of period", "periodStartLabel": "Balance at beginning of period", "terseLabel": "Goodwill (note 8)", "verboseLabel": "Goodwill" } } }, "localname": "Goodwill", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails", "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/GoodwillAndIntangibleAssetsRollforwardDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillAcquiredDuringPeriod": { "auth_ref": [ "r179" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.", "label": "Goodwill, Acquired During Period", "terseLabel": "Acquisitions" } } }, "localname": "GoodwillAcquiredDuringPeriod", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsRollforwardDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Goodwill and Intangible Assets Disclosure [Abstract]" } } }, "localname": "GoodwillAndIntangibleAssetsDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock": { "auth_ref": [ "r199" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for goodwill and intangible assets.", "label": "Goodwill and Intangible Assets Disclosure [Text Block]", "terseLabel": "Goodwill and Intangible Assets" } } }, "localname": "GoodwillAndIntangibleAssetsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssets" ], "xbrltype": "textBlockItemType" }, "us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock": { "auth_ref": [ "r97", "r182", "r191" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for goodwill and intangible assets. This accounting policy also may address how an entity assesses and measures impairment of goodwill and intangible assets.", "label": "Goodwill and Intangible Assets, Policy [Policy Text Block]", "terseLabel": "Intangible Assets" } } }, "localname": "GoodwillAndIntangibleAssetsPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_GoodwillImpairedAccumulatedImpairmentLoss": { "auth_ref": [ "r178", "r181" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.", "label": "Goodwill, Impaired, Accumulated Impairment Loss", "terseLabel": "Accumulated goodwill impairment losses" } } }, "localname": "GoodwillImpairedAccumulatedImpairmentLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillImpairmentLoss": { "auth_ref": [ "r87", "r176", "r180", "r184" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.", "label": "Goodwill, Impairment Loss", "negatedTerseLabel": "Impairment", "verboseLabel": "Goodwill impairment" } } }, "localname": "GoodwillImpairmentLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails", "http://www.gci.net/role/GoodwillAndIntangibleAssetsRollforwardDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_GoodwillLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Goodwill [Line Items]", "terseLabel": "Goodwill [Line Items]" } } }, "localname": "GoodwillLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsRollforwardDetails" ], "xbrltype": "stringItemType" }, "us-gaap_GoodwillRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Goodwill [Roll Forward]", "terseLabel": "Goodwill [Roll Forward]" } } }, "localname": "GoodwillRollForward", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsRollforwardDetails" ], "xbrltype": "stringItemType" }, "us-gaap_GuaranteeObligationsCurrentCarryingValue": { "auth_ref": [ "r227" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.", "label": "Guarantor Obligations, Current Carrying Value", "terseLabel": "Agreed indemnification for loss or recapture of NMTC" } } }, "localname": "GuaranteeObligationsCurrentCarryingValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/VariableInterestEntitiesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill": { "auth_ref": [ "r87", "r198" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.", "label": "Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)", "terseLabel": "Impairment loss on indefinite-lived intangibles" } } }, "localname": "ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for the impairment and disposal of long-lived assets including goodwill and other intangible assets.", "label": "Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block]", "terseLabel": "Impairment of Long-lived Assets" } } }, "localname": "ImpairmentOrDisposalOfLongLivedAssetsIncludingIntangibleAssetsPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest": { "auth_ref": [ "r61", "r113", "r436", "r447", "r466" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 1.0, "parentTag": "us-gaap_ProfitLoss", "weight": 1.0 }, "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.", "label": "Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest", "totalLabel": "Earnings (loss) before income taxes" } } }, "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfOperations", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeLossFromEquityMethodInvestments": { "auth_ref": [ "r62", "r87", "r134", "r158", "r446", "r464" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 }, "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 2.0, "parentTag": "us-gaap_NonoperatingIncomeExpense", "weight": 1.0 }, "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails": { "order": 3.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of income (loss) for proportionate share of equity method investee's income (loss).", "label": "Income (Loss) from Equity Method Investments", "negatedTerseLabel": "Share of (earnings) losses of affiliates, net", "netLabel": "Share of earnings (loss) of affiliates, net", "terseLabel": "Share of earnings (losses) of affiliates, net (note 7)", "verboseLabel": "Share of earnings (losses) of affiliates" } } }, "localname": "IncomeLossFromEquityMethodInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows", "http://www.gci.net/role/ConsolidatedStatementsOfOperations", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLendingTreeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeStatementAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Income Statement [Abstract]" } } }, "localname": "IncomeStatementAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Income Tax Disclosure [Abstract]" } } }, "localname": "IncomeTaxDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_IncomeTaxDisclosureTextBlock": { "auth_ref": [ "r320" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.", "label": "Income Tax Disclosure [Text Block]", "terseLabel": "Income Taxes" } } }, "localname": "IncomeTaxDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxes" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeTaxExpenseBenefit": { "auth_ref": [ "r101", "r135", "r318" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 2.0, "parentTag": "us-gaap_ProfitLoss", "weight": -1.0 }, "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails": { "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": "Income Tax Expense (Benefit)", "negatedTerseLabel": "Income tax (expense) benefit", "negatedTotalLabel": "Income tax benefit (expense)" } } }, "localname": "IncomeTaxExpenseBenefit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfOperations", "http://www.gci.net/role/IncomeTaxesScheduleOfIncomeTaxBenefitExpenseDetails", "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxPolicyTextBlock": { "auth_ref": [ "r58", "r97", "r297", "r298", "r303", "r304", "r310", "r319", "r478" ], "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]", "terseLabel": "Income Taxes" } } }, "localname": "IncomeTaxPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance": { "auth_ref": [ "r296", "r301", "r302" ], "calculation": { "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails": { "order": 9.0, "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": "Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount", "negatedTerseLabel": "Change in valuation allowance affecting tax expense", "terseLabel": "Change in valuation allowance affecting tax expense" } } }, "localname": "IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesNarrativeDetails", "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate": { "auth_ref": [ "r295", "r301", "r302" ], "calculation": { "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails": { "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 the income tax rates.", "label": "Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount", "negatedLabel": "Change in state tax rate" } } }, "localname": "IncomeTaxReconciliationChangeInEnactedTaxRate", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate": { "auth_ref": [ "r100", "r301", "r302" ], "calculation": { "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails": { "order": 1.0, "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": "Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount", "negatedTerseLabel": "Computed expected tax benefit (expense)" } } }, "localname": "IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses": { "auth_ref": [ "r301", "r302" ], "calculation": { "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails": { "order": 8.0, "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 nondeductible impairment loss.", "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Amount", "negatedTerseLabel": "Goodwill impairment" } } }, "localname": "IncomeTaxReconciliationNondeductibleExpenseImpairmentLosses", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther": { "auth_ref": [ "r301", "r302" ], "calculation": { "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails": { "order": 10.0, "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 other nondeductible expenses.", "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount", "negatedTerseLabel": "Other, net" } } }, "localname": "IncomeTaxReconciliationNondeductibleExpenseOther", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost": { "auth_ref": [ "r301", "r302" ], "calculation": { "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails": { "order": 4.0, "parentTag": "us-gaap_IncomeTaxExpenseBenefit", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for award under share-based payment arrangement. Includes, but is not limited to, expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.", "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount", "negatedTerseLabel": "Executive compensation" } } }, "localname": "IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes": { "auth_ref": [ "r100", "r301", "r302" ], "calculation": { "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails": { "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 state and local income tax expense (benefit).", "label": "Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount", "negatedTerseLabel": "State and local income taxes, net of federal income taxes" } } }, "localname": "IncomeTaxReconciliationStateAndLocalIncomeTaxes", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesStatutoryTaxRateImpactOnIncomeTaxExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInOperatingAssets": { "auth_ref": [ "r86" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "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 the aggregate amount of assets used to generate operating income.", "label": "Increase (Decrease) in Operating Assets", "negatedTerseLabel": "Current and other assets" } } }, "localname": "IncreaseDecreaseInOperatingAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInOperatingCapitalAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Increase (Decrease) in Operating Capital [Abstract]", "terseLabel": "Change in operating assets and liabilities:" } } }, "localname": "IncreaseDecreaseInOperatingCapitalAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_IncreaseDecreaseInOperatingLiabilities": { "auth_ref": [ "r86" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 11.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The increase (decrease) during the reporting period in the aggregate amount of liabilities that result from activities that generate operating income.", "label": "Increase (Decrease) in Operating Liabilities", "terseLabel": "Payables and other liabilities" } } }, "localname": "IncreaseDecreaseInOperatingLiabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_IncreaseDecreaseInStockholdersEquityRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Increase (Decrease) in Stockholders' Equity [Roll Forward]", "terseLabel": "Increase (Decrease) in Stockholders' Equity [Roll Forward]" } } }, "localname": "IncreaseDecreaseInStockholdersEquityRollForward", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "stringItemType" }, "us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis": { "auth_ref": [ "r189", "r196" ], "lang": { "en-US": { "role": { "documentation": "Information by type or class of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.", "label": "Indefinite-lived Intangible Assets [Axis]", "terseLabel": "Indefinite-lived Intangible Assets [Axis]" } } }, "localname": "IndefiniteLivedIntangibleAssetsByMajorClassAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill": { "auth_ref": [ "r196" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "gcillc_IndefiniteLivedIntangibleAssetsIncludingGoodwill", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.", "label": "Indefinite-lived Intangible Assets (Excluding Goodwill)", "terseLabel": "Indefinite-lived intangibles" } } }, "localname": "IndefiniteLivedIntangibleAssetsExcludingGoodwill", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain": { "auth_ref": [ "r189", "r196" ], "lang": { "en-US": { "role": { "documentation": "The major class of indefinite-lived intangible asset (for example, trade names, etc. but not all-inclusive), excluding goodwill. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of the company.", "label": "Indefinite-lived Intangible Assets, Major Class Name [Domain]", "terseLabel": "Indefinite-lived Intangible Assets, Major Class Name [Domain]" } } }, "localname": "IndefiniteLivedIntangibleAssetsMajorClassNameDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_IndemnificationGuaranteeMember": { "auth_ref": [ "r224", "r228" ], "lang": { "en-US": { "role": { "documentation": "An agreement (contract) that contingently requires the guarantor to make payments to the guaranteed party in compensation for that party's or parties' loss or injury attributable to specified events or actions, such as a patent infringement action against an entity that relied on certain representations as to ownership rights made by a software vendor.", "label": "Indemnification Agreement [Member]", "terseLabel": "Indemnification Agreement" } } }, "localname": "IndemnificationGuaranteeMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_IntangibleAssetsNetIncludingGoodwillAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Intangible Assets, Net (Including Goodwill) [Abstract]", "terseLabel": "Intangible assets not subject to amortization" } } }, "localname": "IntangibleAssetsNetIncludingGoodwillAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_InterestCostsCapitalized": { "auth_ref": [ "r379" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of interest capitalized during the period.", "label": "Interest Costs Capitalized", "terseLabel": "Capitalized interest costs" } } }, "localname": "InterestCostsCapitalized", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestExpense": { "auth_ref": [ "r59", "r132", "r378", "r382", "r449" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 1.0, "parentTag": "us-gaap_NonoperatingIncomeExpense", "weight": -1.0 }, "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails": { "order": 2.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of the cost of borrowed funds accounted for as interest expense.", "label": "Interest Expense", "negatedLabel": "Interest expense (including amortization of deferred loan fees)", "negatedTerseLabel": "Interest expense" } } }, "localname": "InterestExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfOperations", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InterestPaidNet": { "auth_ref": [ "r81", "r84", "r91" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.", "label": "Interest Paid, Excluding Capitalized Interest, Operating Activities", "terseLabel": "Cash paid for interest, net of amounts capitalized" } } }, "localname": "InterestPaidNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_InvestmentPolicyTextBlock": { "auth_ref": [ "r161" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for investment in financial asset.", "label": "Investment, Policy [Policy Text Block]", "terseLabel": "Investments" } } }, "localname": "InvestmentPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_InvestmentTypeAxis": { "auth_ref": [ "r472", "r473", "r475", "r476" ], "lang": { "en-US": { "role": { "documentation": "Information by type of investments.", "label": "Investment Type [Axis]", "terseLabel": "Investment Type [Axis]" } } }, "localname": "InvestmentTypeAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_InvestmentTypeCategorizationMember": { "auth_ref": [ "r472", "r473", "r475", "r476" ], "lang": { "en-US": { "role": { "documentation": "Asset obtained to generate income or appreciate in value.", "label": "Investments [Domain]", "terseLabel": "Investments [Domain]" } } }, "localname": "InvestmentTypeCategorizationMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Investments, Debt and Equity Securities [Abstract]" } } }, "localname": "InvestmentsDebtAndEquitySecuritiesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock": { "auth_ref": [ "r155", "r437", "r450", "r477" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for investments in certain debt and equity securities.", "label": "Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]", "terseLabel": "Investments in Equity Securities" } } }, "localname": "InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInEquitySecurities" ], "xbrltype": "textBlockItemType" }, "us-gaap_LandAndBuildingMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Real estate held for productive use and structures used in the conduct of business, including but not limited to, office, production, storage and distribution facilities.", "label": "Land and Building [Member]", "terseLabel": "Land and buildings" } } }, "localname": "LandAndBuildingMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LeaseCostTableTextBlock": { "auth_ref": [ "r404" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.", "label": "Lease, Cost [Table Text Block]", "terseLabel": "Lease Expense and Supplemental Cash Flow Information" } } }, "localname": "LeaseCostTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LeasesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Leases [Abstract]" } } }, "localname": "LeasesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_LesseeFinanceLeaseDescriptionAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Lessee, Finance Lease, Description [Abstract]", "terseLabel": "Finance lease cost", "verboseLabel": "Finance Leases:" } } }, "localname": "LesseeFinanceLeaseDescriptionAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesLeaseExpenseDetails", "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LesseeFinanceLeasesTextBlock": { "auth_ref": [ "r407" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for finance leases of lessee. Includes, but is not limited to, description of lessee's finance lease and maturity analysis of finance lease liability.", "label": "Lessee, Finance Leases [Text Block]", "terseLabel": "Leases" } } }, "localname": "LesseeFinanceLeasesTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/Leases" ], "xbrltype": "textBlockItemType" }, "us-gaap_LesseeLeaseDescriptionLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Lessee, Lease, Description [Line Items]", "terseLabel": "Lessee, Lease, Description [Line Items]" } } }, "localname": "LesseeLeaseDescriptionLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LesseeLeaseDescriptionTable": { "auth_ref": [ "r397" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about lessee's leases.", "label": "Lessee, Lease, Description [Table]", "terseLabel": "Lessee, Lease, Description [Table]" } } }, "localname": "LesseeLeaseDescriptionTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LesseeOperatingLeaseDescriptionAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Lessee, Operating Lease, Description [Abstract]", "terseLabel": "Operating leases:" } } }, "localname": "LesseeOperatingLeaseDescriptionAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock": { "auth_ref": [ "r405" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.", "label": "Lessee, Operating Lease, Liability, Maturity [Table Text Block]", "terseLabel": "Future Lease Payments on Operating Leases" } } }, "localname": "LesseeOperatingLeaseLiabilityMaturityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": null, "parentTag": null, "root": true, "weight": null }, "http://www.gci.net/role/LeasesFutureLeasePaymentsDetailsCalc2": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease.", "label": "Lessee, Operating Lease, Liability, Payments, Due", "totalLabel": "Total lease payments" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 6.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year.", "label": "Lessee, Operating Lease, Liability, Payments, Due after Year Five", "terseLabel": "Thereafter" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 1.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in next fiscal year following latest fiscal year.", "label": "Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months", "terseLabel": "2020" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 5.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fifth fiscal year following latest fiscal year.", "label": "Lessee, Operating Lease, Liability, Payments, Due Year Five", "terseLabel": "2024" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFive", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 4.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fourth fiscal year following latest fiscal year.", "label": "Lessee, Operating Lease, Liability, Payments, Due Year Four", "terseLabel": "2023" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFour", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 3.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third fiscal year following latest fiscal year.", "label": "Lessee, Operating Lease, Liability, Payments, Due Year Three", "terseLabel": "2022" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearThree", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails": { "order": 2.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in second fiscal year following latest fiscal year.", "label": "Lessee, Operating Lease, Liability, Payments, Due Year Two", "terseLabel": "2021" } } }, "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount": { "auth_ref": [ "r405" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetailsCalc2": { "order": 1.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.", "label": "Lessee, Operating Lease, Liability, Undiscounted Excess Amount", "negatedTerseLabel": "Less: imputed interest" } } }, "localname": "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LesseeOperatingLeaseRenewalTerm": { "auth_ref": [ "r396" ], "lang": { "en-US": { "role": { "documentation": "Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Lessee, Operating Lease, Renewal Term", "verboseLabel": "Operating lease, renewal term" } } }, "localname": "LesseeOperatingLeaseRenewalTerm", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails" ], "xbrltype": "durationItemType" }, "us-gaap_LesseeOperatingLeasesTextBlock": { "auth_ref": [ "r407" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability.", "label": "Lessee, Operating Leases [Text Block]", "terseLabel": "Leases" } } }, "localname": "LesseeOperatingLeasesTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/Leases" ], "xbrltype": "textBlockItemType" }, "us-gaap_LetterOfCreditMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A document typically issued by a financial institution which acts as a guarantee of payment to a beneficiary, or as the source of payment for a specific transaction (for example, wiring funds to a foreign exporter if and when specified merchandise is accepted pursuant to the terms of the letter of credit).", "label": "Letter of Credit [Member]", "terseLabel": "Letters of Credit" } } }, "localname": "LetterOfCreditMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_Liabilities": { "auth_ref": [ "r36" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.", "label": "Liabilities", "totalLabel": "Total liabilities" } } }, "localname": "Liabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAndStockholdersEquity": { "auth_ref": [ "r25", "r444", "r460" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.", "label": "Liabilities and Equity", "totalLabel": "Total liabilities and equity" } } }, "localname": "LiabilitiesAndStockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesAndStockholdersEquityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Liabilities and Equity [Abstract]", "terseLabel": "Liabilities and Equity" } } }, "localname": "LiabilitiesAndStockholdersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_LiabilitiesCurrent": { "auth_ref": [ "r38" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.", "label": "Liabilities, Current", "totalLabel": "Total current liabilities" } } }, "localname": "LiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_LiabilitiesCurrentAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Liabilities, Current [Abstract]", "terseLabel": "Current liabilities:" } } }, "localname": "LiabilitiesCurrentAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_LicenseMember": { "auth_ref": [ "r253" ], "lang": { "en-US": { "role": { "documentation": "Right to use intangible asset. Intangible asset includes, but is not limited to, patent, copyright, technology, manufacturing process, software or trademark.", "label": "License [Member]", "terseLabel": "Wireless License" } } }, "localname": "LicenseMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LicensingAgreementsMember": { "auth_ref": [ "r332" ], "lang": { "en-US": { "role": { "documentation": "Rights, generally of limited duration, under a license arrangement (for example, to sell or otherwise utilize specified products or processes in a specified territory).", "label": "Licensing Agreements [Member]", "terseLabel": "Wireless licenses" } } }, "localname": "LicensingAgreementsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "domainItemType" }, "us-gaap_LineOfCredit": { "auth_ref": [ "r14", "r442", "r453" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.", "label": "Long-term Line of Credit", "terseLabel": "Line of credit, outstanding balance" } } }, "localname": "LineOfCredit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityAxis": { "auth_ref": [ "r34", "r105" ], "lang": { "en-US": { "role": { "documentation": "Information by name of lender, which may be a single entity (for example, but not limited to, a bank, pension fund, venture capital firm) or a group of entities that participate in the line of credit.", "label": "Lender Name [Axis]", "terseLabel": "Lender Name [Axis]" } } }, "localname": "LineOfCreditFacilityAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LineOfCreditFacilityLenderDomain": { "auth_ref": [ "r34" ], "lang": { "en-US": { "role": { "documentation": "Identification of the lender, which may be a single entity (for example, a bank, pension fund, venture capital firm) or a group of entities that participate in the line of credit, including a letter of credit facility.", "label": "Line of Credit Facility, Lender [Domain]", "terseLabel": "Line of Credit Facility, Lender [Domain]" } } }, "localname": "LineOfCreditFacilityLenderDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LineOfCreditFacilityLineItems": { "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": "Line of Credit Facility [Line Items]", "terseLabel": "Line of Credit Facility [Line Items]" } } }, "localname": "LineOfCreditFacilityLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity": { "auth_ref": [ "r34" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.", "label": "Line of Credit Facility, Maximum Borrowing Capacity", "terseLabel": "Line of credit availability", "verboseLabel": "Line of credit availability (up to)" } } }, "localname": "LineOfCreditFacilityMaximumBorrowingCapacity", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity": { "auth_ref": [ "r34" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).", "label": "Line of Credit Facility, Remaining Borrowing Capacity", "terseLabel": "Remainder amount available for borrowing" } } }, "localname": "LineOfCreditFacilityRemainingBorrowingCapacity", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LineOfCreditFacilityTable": { "auth_ref": [ "r34", "r105" ], "lang": { "en-US": { "role": { "documentation": "A table or schedule providing information pertaining to short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line.", "label": "Line of Credit Facility [Table]", "terseLabel": "Line of Credit Facility [Table]" } } }, "localname": "LineOfCreditFacilityTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.", "label": "Line of Credit Facility, Unused Capacity, Commitment Fee Percentage", "terseLabel": "Undrawn commitment fee (up to)" } } }, "localname": "LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtMarginLoanDetails" ], "xbrltype": "percentItemType" }, "us-gaap_LineOfCreditMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time, and under which borrowings outstanding may be either short-term or long-term, depending upon the particulars.", "label": "Line of Credit [Member]", "terseLabel": "Senior credit facility" } } }, "localname": "LineOfCreditMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails", "http://www.gci.net/role/DebtSummaryOfDebtDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LondonInterbankOfferedRateLIBORMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Interest rate at which a bank borrows funds from other banks in the London interbank market.", "label": "London Interbank Offered Rate (LIBOR) [Member]", "terseLabel": "LIBOR" } } }, "localname": "LondonInterbankOfferedRateLIBORMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails", "http://www.gci.net/role/DebtWellsFargoNotePayableDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LongTermDebt": { "auth_ref": [ "r14", "r232", "r442", "r456" ], "calculation": { "http://www.gci.net/role/DebtSummaryOfDebtDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.", "label": "Long-term Debt", "terseLabel": "Long-term debt", "totalLabel": "Total debt" } } }, "localname": "LongTermDebt", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtSeniorNotesDetails", "http://www.gci.net/role/DebtSummaryOfDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtCurrent": { "auth_ref": [ "r35" ], "calculation": { "http://www.gci.net/role/DebtSummaryOfDebtDetails": { "order": 1.0, "parentTag": "us-gaap_LongTermDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.", "label": "Long-term Debt, Current Maturities", "negatedTerseLabel": "Debt classified as current, net of deferred financing costs" } } }, "localname": "LongTermDebtCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtSummaryOfDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive": { "auth_ref": [ "r111", "r229" ], "calculation": { "http://www.gci.net/role/DebtFiveYearMaturitiesDetails": { "order": 6.0, "parentTag": "us-gaap_DebtInstrumentCarryingAmount", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Long-term Debt, Maturities, Repayments of Principal after Year Five", "terseLabel": "2025 and thereafter" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtFiveYearMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths": { "auth_ref": [ "r111", "r229" ], "calculation": { "http://www.gci.net/role/DebtFiveYearMaturitiesDetails": { "order": 1.0, "parentTag": "us-gaap_DebtInstrumentCarryingAmount", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months", "terseLabel": "2020" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtFiveYearMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive": { "auth_ref": [ "r111", "r229" ], "calculation": { "http://www.gci.net/role/DebtFiveYearMaturitiesDetails": { "order": 5.0, "parentTag": "us-gaap_DebtInstrumentCarryingAmount", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Long-term Debt, Maturities, Repayments of Principal in Year Five", "terseLabel": "2024" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtFiveYearMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour": { "auth_ref": [ "r111", "r229" ], "calculation": { "http://www.gci.net/role/DebtFiveYearMaturitiesDetails": { "order": 4.0, "parentTag": "us-gaap_DebtInstrumentCarryingAmount", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Long-term Debt, Maturities, Repayments of Principal in Year Four", "terseLabel": "2023" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtFiveYearMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree": { "auth_ref": [ "r111", "r229" ], "calculation": { "http://www.gci.net/role/DebtFiveYearMaturitiesDetails": { "order": 3.0, "parentTag": "us-gaap_DebtInstrumentCarryingAmount", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Long-term Debt, Maturities, Repayments of Principal in Year Three", "terseLabel": "2022" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtFiveYearMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo": { "auth_ref": [ "r111", "r229" ], "calculation": { "http://www.gci.net/role/DebtFiveYearMaturitiesDetails": { "order": 2.0, "parentTag": "us-gaap_DebtInstrumentCarryingAmount", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.", "label": "Long-term Debt, Maturities, Repayments of Principal in Year Two", "terseLabel": "2021" } } }, "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtFiveYearMaturitiesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtNoncurrent": { "auth_ref": [ "r40" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 }, "http://www.gci.net/role/DebtSummaryOfDebtDetails": { "order": 2.0, "parentTag": "us-gaap_LongTermDebt", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.", "label": "Long-term Debt, Excluding Current Maturities", "terseLabel": "Total long-term debt", "verboseLabel": "Long-term debt, net (note 9)" } } }, "localname": "LongTermDebtNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/DebtSummaryOfDebtDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LongTermDebtTextBlock": { "auth_ref": [ "r233" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for long-term debt.", "label": "Long-term Debt [Text Block]", "terseLabel": "Debt" } } }, "localname": "LongTermDebtTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/Debt" ], "xbrltype": "textBlockItemType" }, "us-gaap_LongtermDebtTypeAxis": { "auth_ref": [ "r40" ], "lang": { "en-US": { "role": { "documentation": "Information by type of long-term debt.", "label": "Long-term Debt, Type [Axis]", "terseLabel": "Long-term Debt, Type [Axis]" } } }, "localname": "LongtermDebtTypeAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/DebtFairValueOfDebtDetails", "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails", "http://www.gci.net/role/DebtSeniorNotesDetails", "http://www.gci.net/role/DebtSummaryOfDebtDetails", "http://www.gci.net/role/DebtWellsFargoNotePayableDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LongtermDebtTypeDomain": { "auth_ref": [ "r40", "r230" ], "lang": { "en-US": { "role": { "documentation": "Type of long-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.", "label": "Long-term Debt, Type [Domain]", "terseLabel": "Long-term Debt, Type [Domain]" } } }, "localname": "LongtermDebtTypeDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/DebtFairValueOfDebtDetails", "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails", "http://www.gci.net/role/DebtSeniorNotesDetails", "http://www.gci.net/role/DebtSummaryOfDebtDetails", "http://www.gci.net/role/DebtWellsFargoNotePayableDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LossContingenciesByNatureOfContingencyAxis": { "auth_ref": [ "r214", "r215", "r216", "r218", "r219", "r220", "r222", "r225", "r226" ], "lang": { "en-US": { "role": { "documentation": "Information by type of existing condition, situation, or set of circumstances involving uncertainty as to possible loss to an enterprise that will ultimately be resolved when one or more future events occur or fail to occur.", "label": "Loss Contingency Nature [Axis]", "terseLabel": "Loss Contingency Nature [Axis]" } } }, "localname": "LossContingenciesByNatureOfContingencyAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LossContingenciesLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Loss Contingencies [Line Items]", "terseLabel": "Loss Contingencies [Line Items]" } } }, "localname": "LossContingenciesLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LossContingenciesTable": { "auth_ref": [ "r214", "r215", "r216", "r218", "r219", "r220", "r222", "r225", "r226" ], "lang": { "en-US": { "role": { "documentation": "Discloses the specific components (such as the nature, name, and date) of the loss contingency and gives an estimate of the possible loss or range of loss, or states that a reasonable estimate cannot be made. Excludes environmental contingencies, warranties and unconditional purchase obligations.", "label": "Loss Contingencies [Table]", "terseLabel": "Loss Contingencies [Table]" } } }, "localname": "LossContingenciesTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "stringItemType" }, "us-gaap_LossContingencyEstimateOfPossibleLoss": { "auth_ref": [ "r217", "r221", "r225" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.", "label": "Loss Contingency, Estimate of Possible Loss", "terseLabel": "Additional loss on contract" } } }, "localname": "LossContingencyEstimateOfPossibleLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LossContingencyNatureDomain": { "auth_ref": [ "r214", "r215", "r216", "r218", "r219", "r220", "r222", "r225", "r226" ], "lang": { "en-US": { "role": { "documentation": "An existing condition, situation, or set of circumstances involving uncertainty as to possible loss to an enterprise that will ultimately be resolved when one or more future events occur or fail to occur. Resolution of the uncertainty may confirm the incurrence of a loss or impairment of an asset or the incurrence of a liability.", "label": "Loss Contingency, Nature [Domain]", "terseLabel": "Loss Contingency, Nature [Domain]" } } }, "localname": "LossContingencyNatureDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_LossContingencyRelatedReceivableCarryingValuePeriodIncreaseDecrease": { "auth_ref": [ "r226" ], "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) of receivables pertaining to a loss contingency.", "label": "Loss Contingency, Receivable, Period Increase (Decrease)", "negatedTerseLabel": "Reduction in receivables" } } }, "localname": "LossContingencyRelatedReceivableCarryingValuePeriodIncreaseDecrease", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_LossOnContracts": { "auth_ref": [ "r65", "r245" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Losses recognized in the current period on contracts which are expected to generate losses, which are probable and can be reasonably estimated, in a future period.", "label": "Loss on Contracts", "terseLabel": "Loss on contracts" } } }, "localname": "LossOnContracts", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_MediumTermNotesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Debt instruments with maturities ranging from five to ten years.", "label": "Medium-term Notes [Member]", "terseLabel": "Term Loan" } } }, "localname": "MediumTermNotesMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_MembersEquityAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Members' Equity [Abstract]", "terseLabel": "Member's equity:" } } }, "localname": "MembersEquityAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_MinorityInterest": { "auth_ref": [ "r48", "r443", "r459" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest", "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 is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).", "label": "Stockholders' Equity Attributable to Noncontrolling Interest", "terseLabel": "Non-controlling interests" } } }, "localname": "MinorityInterest", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders": { "auth_ref": [ "r244" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.", "label": "Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders", "negatedLabel": "Distribution to non-controlling interests" } } }, "localname": "MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_MinorityInterestDisclosureTextBlock": { "auth_ref": [ "r356" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for noncontrolling interest in consolidated subsidiaries, which could include the name of the subsidiary, the ownership percentage held by the parent, the ownership percentage held by the noncontrolling owners, the amount of the noncontrolling interest, the location of this amount on the balance sheet (when not reported separately), an explanation of the increase or decrease in the amount of the noncontrolling interest, the noncontrolling interest share of the net Income or Loss of the subsidiary, the location of this amount on the income statement (when not reported separately), the nature of the noncontrolling interest such as background information and terms, the amount of the noncontrolling interest represented by preferred stock, a description of the preferred stock, and the dividend requirements of the preferred stock.", "label": "Noncontrolling Interest Disclosure [Text Block]", "terseLabel": "Variable Interest Entities" } } }, "localname": "MinorityInterestDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/VariableInterestEntities" ], "xbrltype": "textBlockItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivities": { "auth_ref": [ "r83" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 3.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.", "label": "Net Cash Provided by (Used in) Financing Activities", "totalLabel": "Net cash provided (used) by financing activities" } } }, "localname": "NetCashProvidedByUsedInFinancingActivities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Cash Provided by (Used in) Financing Activities [Abstract]", "terseLabel": "Cash flows from financing activities:" } } }, "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivities": { "auth_ref": [ "r83" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 2.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.", "label": "Net Cash Provided by (Used in) Investing Activities", "totalLabel": "Net cash provided (used) by investing activities" } } }, "localname": "NetCashProvidedByUsedInInvestingActivities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Cash Provided by (Used in) Investing Activities [Abstract]", "terseLabel": "Cash flows from investing activities:" } } }, "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivities": { "auth_ref": [ "r83", "r85", "r88" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 1.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect", "weight": 1.0 } }, "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.", "label": "Net Cash Provided by (Used in) Operating Activities", "totalLabel": "Net cash provided (used) by operating activities" } } }, "localname": "NetCashProvidedByUsedInOperatingActivities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Net Cash Provided by (Used in) Operating Activities [Abstract]", "terseLabel": "Cash flows from operating activities:" } } }, "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_NetIncomeLoss": { "auth_ref": [ "r56", "r57", "r63", "r88", "r117", "r448", "r465" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.", "label": "Net Income (Loss) Attributable to Parent", "totalLabel": "Net earnings (loss) attributable to member" } } }, "localname": "NetIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetIncomeLossAttributableToNoncontrollingInterest": { "auth_ref": [ "r56", "r57", "r343", "r353" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 2.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of Net Income (Loss) attributable to noncontrolling interest.", "label": "Net Income (Loss) Attributable to Noncontrolling Interest", "terseLabel": "Less net earnings (loss) attributable to the non-controlling interests" } } }, "localname": "NetIncomeLossAttributableToNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic": { "auth_ref": [ "r113", "r115" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.", "label": "Net Income (Loss) Available to Common Stockholders, Basic", "verboseLabel": "Net earnings (loss) attributable to member" } } }, "localname": "NetIncomeLossAvailableToCommonStockholdersBasic", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/QuarterlyFinancialInformationUnauditedDetails" ], "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]", "terseLabel": "New Accounting Pronouncements Not Yet Adopted" } } }, "localname": "NewAccountingPronouncementsPolicyPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1": { "auth_ref": [ "r92", "r93", "r94" ], "calculation": { "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails": { "order": 1.0, "parentTag": "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of fixed assets that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.", "label": "Noncash or Part Noncash Acquisition, Fixed Assets Acquired", "terseLabel": "Property and equipment" } } }, "localname": "NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1": { "auth_ref": [ "r92", "r93", "r94" ], "calculation": { "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails": { "order": 4.0, "parentTag": "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The total amount of [all] liabilities that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. \"Part noncash\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.", "label": "Noncash or Part Noncash Acquisition, Value of Liabilities Assumed", "negatedTerseLabel": "Liabilities assumed" } } }, "localname": "NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_NoncontrollingInterestMember": { "auth_ref": [ "r339" ], "lang": { "en-US": { "role": { "documentation": "This element represents that portion of equity (net assets) in a subsidiary not attributable, directly or indirectly, to the parent. A noncontrolling interest is sometimes called a minority interest.", "label": "Noncontrolling Interest [Member]", "verboseLabel": "Non-controlling interest in equity of subsidiaries" } } }, "localname": "NoncontrollingInterestMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "domainItemType" }, "us-gaap_NonoperatingIncomeExpense": { "auth_ref": [ "r69" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 2.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).", "label": "Nonoperating Income (Expense)", "totalLabel": "Other income (expense)" } } }, "localname": "NonoperatingIncomeExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_NonoperatingIncomeExpenseAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Nonoperating Income (Expense) [Abstract]", "terseLabel": "Other income (expense):" } } }, "localname": "NonoperatingIncomeExpenseAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "stringItemType" }, "us-gaap_NotesPayableToBanksMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A written promise to pay a note to a bank.", "label": "Notes Payable to Banks [Member]", "terseLabel": "Wells Fargo note payable" } } }, "localname": "NotesPayableToBanksMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtSummaryOfDebtDetails", "http://www.gci.net/role/DebtWellsFargoNotePayableDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OperatingExpenses": { "auth_ref": [], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 2.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": -1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.", "label": "Operating Expenses", "totalLabel": "Operating costs and expenses" } } }, "localname": "OperatingExpenses", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingIncomeLoss": { "auth_ref": [], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 1.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0 }, "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails": { "order": 1.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The net result for the period of deducting operating expenses from operating revenues.", "label": "Operating Income (Loss)", "terseLabel": "Operating income (loss)", "totalLabel": "Operating income (loss)" } } }, "localname": "OperatingIncomeLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfOperations", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails", "http://www.gci.net/role/QuarterlyFinancialInformationUnauditedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseCost": { "auth_ref": [ "r399", "r406" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.", "label": "Operating Lease, Cost", "terseLabel": "Operating lease cost" } } }, "localname": "OperatingLeaseCost", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesLeaseExpenseDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Lessee, Operating Lease, Liability, Payment, Due [Abstract]", "terseLabel": "Operating Leases" } } }, "localname": "OperatingLeaseLiabilitiesPaymentsDueAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_OperatingLeaseLiability": { "auth_ref": [ "r391" ], "calculation": { "http://www.gci.net/role/LeasesFutureLeasePaymentsDetailsCalc2": { "order": 2.0, "parentTag": "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue", "weight": 1.0 }, "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease.", "label": "Operating Lease, Liability", "terseLabel": "Total lease liabilities", "totalLabel": "Total operating lease liabilities" } } }, "localname": "OperatingLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesFutureLeasePaymentsDetails", "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiabilityCurrent": { "auth_ref": [ "r391" ], "calculation": { "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails": { "order": 1.0, "parentTag": "us-gaap_OperatingLeaseLiability", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.", "label": "Operating Lease, Liability, Current", "terseLabel": "Short-term operating lease liabilities", "verboseLabel": "Current operating lease liabilities" } } }, "localname": "OperatingLeaseLiabilityCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails", "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseLiabilityNoncurrent": { "auth_ref": [ "r391" ], "calculation": { "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails": { "order": 2.0, "parentTag": "us-gaap_OperatingLeaseLiability", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.", "label": "Operating Lease, Liability, Noncurrent", "terseLabel": "Operating lease liabilities" } } }, "localname": "OperatingLeaseLiabilityNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails", "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeasePayments": { "auth_ref": [ "r395", "r400" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.", "label": "Operating Lease, Payments", "terseLabel": "Operating cash flows from operating leases" } } }, "localname": "OperatingLeasePayments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseRightOfUseAsset": { "auth_ref": [ "r390" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of lessee's right to use underlying asset under operating lease.", "label": "Operating Lease, Right-of-Use Asset", "terseLabel": "Operating lease right-of-use assets, net", "verboseLabel": "Operating lease ROU assets, net" } } }, "localname": "OperatingLeaseRightOfUseAsset", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails", "http://www.gci.net/role/LeasesSupplementalBalanceSheetInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent": { "auth_ref": [ "r403", "r406" ], "lang": { "en-US": { "role": { "documentation": "Weighted average discount rate for operating lease calculated at point in time.", "label": "Operating Lease, Weighted Average Discount Rate, Percent", "terseLabel": "Operating leases" } } }, "localname": "OperatingLeaseWeightedAverageDiscountRatePercent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesWeightedAverageTermAndDiscountRateDetails" ], "xbrltype": "percentItemType" }, "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1": { "auth_ref": [ "r402", "r406" ], "lang": { "en-US": { "role": { "documentation": "Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Operating Lease, Weighted Average Remaining Lease Term", "terseLabel": "Operating leases" } } }, "localname": "OperatingLeaseWeightedAverageRemainingLeaseTerm1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesWeightedAverageTermAndDiscountRateDetails" ], "xbrltype": "durationItemType" }, "us-gaap_OperatingLeasesRentExpenseNet": { "auth_ref": [ "r385" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.", "label": "Operating Leases, Rent Expense, Net", "verboseLabel": "Operating expense on finance leases" } } }, "localname": "OperatingLeasesRentExpenseNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingLossCarryforwards": { "auth_ref": [ "r311" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.", "label": "Operating Loss Carryforwards", "verboseLabel": "Carryforwards" } } }, "localname": "OperatingLossCarryforwards", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_OperatingSegmentsMember": { "auth_ref": [ "r131", "r144" ], "lang": { "en-US": { "role": { "documentation": "Identifies components of an entity that engage in business activities from which they may earn revenue and incur expenses, including transactions with other components of the same entity.", "label": "Operating Segments [Member]", "terseLabel": "Operating Segments" } } }, "localname": "OperatingSegmentsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsOtherInformationDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsPerformanceMeasuresDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Organization, Consolidation and Presentation of Financial Statements [Abstract]" } } }, "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock": { "auth_ref": [ "r3", "r112", "r127", "r356" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements.", "label": "Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]", "terseLabel": "Basis of Presentation" } } }, "localname": "OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentation" ], "xbrltype": "textBlockItemType" }, "us-gaap_OtherAggregatedInvestmentsMember": { "auth_ref": [ "r474" ], "lang": { "en-US": { "role": { "documentation": "Other investments in debt and equity securities and other forms of securities that provide ownership interests.", "label": "Other Security Investments [Member]", "terseLabel": "Other investments" } } }, "localname": "OtherAggregatedInvestmentsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherAssetsCurrent": { "auth_ref": [ "r49" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 3.0, "parentTag": "us-gaap_AssetsCurrent", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of current assets classified as other.", "label": "Other Assets, Current", "terseLabel": "Other current assets" } } }, "localname": "OtherAssetsCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherAssetsMember": { "auth_ref": [ "r361", "r366" ], "lang": { "en-US": { "role": { "documentation": "Primary financial statement caption encompassing other assets.", "label": "Other Assets [Member]", "terseLabel": "Other Assets" } } }, "localname": "OtherAssetsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAccountsReceivableAndAllowanceForDoubtfulReceivablesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherAssetsNoncurrent": { "auth_ref": [ "r33" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 7.0, "parentTag": "us-gaap_Assets", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of noncurrent assets classified as other.", "label": "Other Assets, Noncurrent", "terseLabel": "Other assets, net" } } }, "localname": "OtherAssetsNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherCostAndExpenseOperating": { "auth_ref": [ "r66" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 1.0, "parentTag": "us-gaap_OperatingExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation.", "label": "Other Cost and Expense, Operating", "terseLabel": "Operating expense (exclusive of depreciation and amortization shown separately below)" } } }, "localname": "OtherCostAndExpenseOperating", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherIntangibleAssetsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Intangible assets classified as other.", "label": "Other Intangible Assets [Member]", "terseLabel": "Other", "verboseLabel": "Other amortizable intangibles" } } }, "localname": "OtherIntangibleAssetsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/GoodwillAndIntangibleAssetsIntangibleAssetsSubjectToAmortizationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_OtherLiabilitiesCurrent": { "auth_ref": [ "r7", "r8", "r37" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_LiabilitiesCurrent", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.", "label": "Other Liabilities, Current", "terseLabel": "Other current liabilities" } } }, "localname": "OtherLiabilitiesCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherLiabilitiesNoncurrent": { "auth_ref": [ "r41" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 6.0, "parentTag": "us-gaap_Liabilities", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.", "label": "Other Liabilities, Noncurrent", "terseLabel": "Other liabilities" } } }, "localname": "OtherLiabilitiesNoncurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherNoncashIncomeExpense": { "auth_ref": [ "r88" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 9.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.", "label": "Other Noncash Income (Expense)", "negatedTerseLabel": "Other, net" } } }, "localname": "OtherNoncashIncomeExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_OtherNonoperatingIncomeExpense": { "auth_ref": [ "r70" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 4.0, "parentTag": "us-gaap_NonoperatingIncomeExpense", "weight": 1.0 }, "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails": { "order": 5.0, "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of income (expense) related to nonoperating activities, classified as other.", "label": "Other Nonoperating Income (Expense)", "terseLabel": "Other, net" } } }, "localname": "OtherNonoperatingIncomeExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfOperations", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToOperatingIncomeAndEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ParentMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Portion of equity, or net assets, in the consolidated entity attributable, directly or indirectly, to the parent. Excludes noncontrolling interests.", "label": "Parent [Member]", "terseLabel": "Parent" } } }, "localname": "ParentMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "domainItemType" }, "us-gaap_PaymentsForDerivativeInstrumentInvestingActivities": { "auth_ref": [ "r75" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 5.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow for derivative instruments during the period, which are classified as investing activities, excluding those designated as hedging instruments.", "label": "Payments for Derivative Instrument, Investing Activities", "negatedTerseLabel": "Settlement of derivative instrument" } } }, "localname": "PaymentsForDerivativeInstrumentInvestingActivities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsForProceedsFromOtherInvestingActivities": { "auth_ref": [ "r72", "r75", "r110" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash (inflow) outflow from investing activities classified as other.", "label": "Payments for (Proceeds from) Other Investing Activities", "negatedTerseLabel": "Other investing activities, net" } } }, "localname": "PaymentsForProceedsFromOtherInvestingActivities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsOfDistributionsToAffiliates": { "auth_ref": [ "r78" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 4.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The distributions of earnings to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.", "label": "Payments of Distributions to Affiliates", "negatedTerseLabel": "Contributions from (distributions to) member" } } }, "localname": "PaymentsOfDistributionsToAffiliates", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired": { "auth_ref": [ "r73" ], "calculation": { "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.", "label": "Payments to Acquire Businesses, Net of Cash Acquired", "negatedTotalLabel": "Cash and restricted cash paid (received) for acquisitions, net of cash acquired" } } }, "localname": "PaymentsToAcquireBusinessesNetOfCashAcquired", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireEquityMethodInvestments": { "auth_ref": [ "r73" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.", "label": "Payments to Acquire Equity Method Investments", "terseLabel": "Acquisition of interest in investments" } } }, "localname": "PaymentsToAcquireEquityMethodInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquireInvestments": { "auth_ref": [ "r75" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow associated with the purchase of all investments (debt, security, other) during the period.", "label": "Payments to Acquire Investments", "negatedTerseLabel": "Purchases of investments" } } }, "localname": "PaymentsToAcquireInvestments", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": { "auth_ref": [ "r74" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 2.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": -1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.", "label": "Payments to Acquire Property, Plant, and Equipment", "negatedTerseLabel": "Capital expended for property and equipment" } } }, "localname": "PaymentsToAcquirePropertyPlantAndEquipment", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_PerformanceSharesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Share-based payment arrangement awarded for meeting performance target.", "label": "Performance Shares [Member]", "terseLabel": "Performance RSUs" } } }, "localname": "PerformanceSharesMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PlanNameAxis": { "auth_ref": [ "r266", "r289" ], "lang": { "en-US": { "role": { "documentation": "Information by plan name for share-based payment arrangement.", "label": "Plan Name [Axis]", "terseLabel": "Plan Name [Axis]" } } }, "localname": "PlanNameAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationExercisesDetails", "http://www.gci.net/role/StockBasedCompensationIncentivePlanDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PlanNameDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Plan name for share-based payment arrangement.", "label": "Plan Name [Domain]", "terseLabel": "Plan Name [Domain]" } } }, "localname": "PlanNameDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationExercisesDetails", "http://www.gci.net/role/StockBasedCompensationIncentivePlanDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PriorPeriodReclassificationAdjustmentDescription": { "auth_ref": [ "r0" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for reclassifications that affects the comparability of the financial statements.", "label": "Reclassification, Policy [Policy Text Block]", "terseLabel": "Reclassifications" } } }, "localname": "PriorPeriodReclassificationAdjustmentDescription", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ProceedsFromContributionsFromParent": { "auth_ref": [ "r77" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow from parent as a source of financing that is recorded as additional paid in capital.", "label": "Proceeds from Contributions from Parent", "terseLabel": "Contributions from parent company" } } }, "localname": "ProceedsFromContributionsFromParent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromDerivativeInstrumentInvestingActivities": { "auth_ref": [ "r72" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow provided by derivative instruments during the period, which are classified as investing activities, excluding those designated as hedging instruments.", "label": "Proceeds from Derivative Instrument, Investing Activities", "terseLabel": "Proceeds from derivative instrument" } } }, "localname": "ProceedsFromDerivativeInstrumentInvestingActivities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromIssuanceOfLongTermDebt": { "auth_ref": [ "r76" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.", "label": "Proceeds from Issuance of Long-term Debt", "terseLabel": "Borrowings of debt" } } }, "localname": "ProceedsFromIssuanceOfLongTermDebt", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromLinesOfCredit": { "auth_ref": [ "r76", "r106" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.", "label": "Proceeds from Lines of Credit", "terseLabel": "Proceeds from lines of credit" } } }, "localname": "ProceedsFromLinesOfCredit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtMarginLoanDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromPaymentsForOtherFinancingActivities": { "auth_ref": [ "r77", "r80", "r110" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 7.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) from financing activities classified as other.", "label": "Proceeds from (Payments for) Other Financing Activities", "terseLabel": "Other financing activities, net" } } }, "localname": "ProceedsFromPaymentsForOtherFinancingActivities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProceedsFromPaymentsToMinorityShareholders": { "auth_ref": [ "r110" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 6.0, "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash inflow (outflow) from (to) a noncontrolling interest. Excludes dividends paid to the noncontrolling interest.", "label": "Proceeds from (Payments to) Noncontrolling Interests", "terseLabel": "Distribution to non-controlling interests" } } }, "localname": "ProceedsFromPaymentsToMinorityShareholders", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ProfitLoss": { "auth_ref": [ "r56", "r57", "r82", "r136", "r145", "r341", "r342", "r344", "r353", "r354" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 1.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 }, "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 1.0, "parentTag": "us-gaap_NetIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.", "label": "Net Income (Loss), Including Portion Attributable to Noncontrolling Interest", "terseLabel": "Net earnings (loss)", "totalLabel": "Net earnings (loss)" } } }, "localname": "ProfitLoss", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity", "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows", "http://www.gci.net/role/ConsolidatedStatementsOfOperations", "http://www.gci.net/role/QuarterlyFinancialInformationUnauditedDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentByTypeAxis": { "auth_ref": [ "r32", "r203" ], "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": "Property, Plant and Equipment, Type [Axis]", "terseLabel": "Property, Plant and Equipment, Type [Axis]" } } }, "localname": "PropertyPlantAndEquipmentByTypeAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentGross": { "auth_ref": [ "r31", "r202" ], "calculation": { "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails": { "order": 2.0, "parentTag": "gcillc_PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetbeforeAccumulatedDepreciationandAmortization", "weight": 1.0 } }, "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": "Property, Plant and Equipment, Gross", "terseLabel": "Property and equipment" } } }, "localname": "PropertyPlantAndEquipmentGross", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) of long-lived, 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, furniture and fixtures, and computer equipment.", "label": "Property, Plant and Equipment, Gross, Period Increase (Decrease)", "negatedTerseLabel": "Reduction in fixed assets" } } }, "localname": "PropertyPlantAndEquipmentGrossPeriodIncreaseDecrease", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Property, Plant and Equipment [Line Items]", "terseLabel": "Property, Plant and Equipment [Line Items]" } } }, "localname": "PropertyPlantAndEquipmentLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_PropertyPlantAndEquipmentNet": { "auth_ref": [ "r10", "r11", "r203", "r462" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 4.0, "parentTag": "us-gaap_Assets", "weight": 1.0 }, "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails": { "order": null, "parentTag": null, "root": true, "weight": null } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.", "label": "Property, Plant and Equipment, Net", "terseLabel": "Property and equipment, net", "totalLabel": "Property and equipment, net" } } }, "localname": "PropertyPlantAndEquipmentNet", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_PropertyPlantAndEquipmentOtherTypesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Long-lived, physical assets used to produce goods and services and not intended for resale, classified as other.", "label": "Property, Plant and Equipment, Other Types [Member]", "terseLabel": "Other" } } }, "localname": "PropertyPlantAndEquipmentOtherTypesMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "domainItemType" }, "us-gaap_PropertyPlantAndEquipmentPolicyTextBlock": { "auth_ref": [ "r30", "r97", "r203" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, basis of assets, depreciation and depletion methods used, including composite deprecation, estimated useful lives, capitalization policy, accounting treatment for costs incurred for repairs and maintenance, capitalized interest and the method it is calculated, disposals and impairments.", "label": "Property, Plant and Equipment, Policy [Policy Text Block]", "terseLabel": "Property and Equipment" } } }, "localname": "PropertyPlantAndEquipmentPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentTextBlock": { "auth_ref": [ "r10", "r203" ], "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]", "terseLabel": "Schedule of Net Property and Equipment" } } }, "localname": "PropertyPlantAndEquipmentTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_PropertyPlantAndEquipmentTypeDomain": { "auth_ref": [ "r10", "r202" ], "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": "Property, Plant and Equipment, Type [Domain]", "terseLabel": "Property, Plant and Equipment, Type [Domain]" } } }, "localname": "PropertyPlantAndEquipmentTypeDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesNarrativeDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "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": "Property, Plant and Equipment, Useful Life", "terseLabel": "Useful lives" } } }, "localname": "PropertyPlantAndEquipmentUsefulLife", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "durationItemType" }, "us-gaap_ProvisionForDoubtfulAccounts": { "auth_ref": [ "r64", "r169" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of expense (reversal of expense) for expected credit loss on accounts receivable.", "label": "Accounts Receivable, Credit Loss Expense (Reversal)", "verboseLabel": "Charged to costs and expenses" } } }, "localname": "ProvisionForDoubtfulAccounts", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAccountsReceivableAndAllowanceForDoubtfulReceivablesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_QuarterlyFinancialInformationDisclosureAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Quarterly Financial Information Disclosure [Abstract]" } } }, "localname": "QuarterlyFinancialInformationDisclosureAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_QuarterlyFinancialInformationTextBlock": { "auth_ref": [ "r119" ], "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]", "terseLabel": "Quarterly Financial Information (Unaudited)" } } }, "localname": "QuarterlyFinancialInformationTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/QuarterlyFinancialInformationUnaudited" ], "xbrltype": "textBlockItemType" }, "us-gaap_ReceivablesNetCurrent": { "auth_ref": [ "r21", "r27", "r461", "r471" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.", "label": "Receivables, Net, Current", "terseLabel": "Receivables net, current" } } }, "localname": "ReceivablesNetCurrent", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesUniversalServiceFundDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy": { "auth_ref": [ "r27", "r97", "r152" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for determining the allowance for doubtful accounts for trade and other accounts receivable balances, and when impairments, charge-offs or recoveries are recognized.", "label": "Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block]", "terseLabel": "Accounts Receivable and Allowance for Doubtful Receivables" } } }, "localname": "ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock": { "auth_ref": [ "r140", "r142" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of all significant reconciling items in the reconciliation of total assets from reportable segments to the entity's consolidated assets.", "label": "Reconciliation of Assets from Segment to Consolidated [Table Text Block]", "terseLabel": "Reconciliation of Assets from Segment to Consolidated" } } }, "localname": "ReconciliationOfAssetsFromSegmentToConsolidatedTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock": { "auth_ref": [ "r139", "r142" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of all significant reconciling items in the reconciliation of total revenues from reportable segments to the entity's consolidated revenues.", "label": "Reconciliation of Revenue from Segments to Consolidated [Table Text Block]", "terseLabel": "Reconciliation of Revenue from Segments to Consolidated" } } }, "localname": "ReconciliationOfRevenueFromSegmentsToConsolidatedTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_RegulatoryAgencyAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by name of regulatory agency.", "label": "Regulatory Agency [Axis]", "terseLabel": "Regulatory Agency [Axis]" } } }, "localname": "RegulatoryAgencyAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesUniversalServiceFundDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RegulatoryAgencyDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Organization that establishes and ensures compliance with rules or regulations.", "label": "Regulatory Agency [Domain]", "terseLabel": "Regulatory Agency [Domain]" } } }, "localname": "RegulatoryAgencyDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesUniversalServiceFundDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RelatedPartyCosts": { "auth_ref": [ "r65", "r107" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Direct costs arising from transactions with related parties who are not affiliates or joint Ventures. These costs are categorized as cost of goods sold.", "label": "Related Party Costs", "terseLabel": "Related party costs" } } }, "localname": "RelatedPartyCosts", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RelatedPartyDomain": { "auth_ref": [ "r414" ], "lang": { "en-US": { "role": { "documentation": "Related parties include affiliates; other entities for which investments are accounted for by the equity method by the entity; trusts for benefit of employees; and principal owners, management, and members of immediate families. It also may include other parties with which the entity may control or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests.", "label": "Related Party [Domain]", "terseLabel": "Related Party [Domain]" } } }, "localname": "RelatedPartyDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RelatedPartyTransactionAxis": { "auth_ref": [ "r260", "r410", "r412" ], "lang": { "en-US": { "role": { "documentation": "Information by type of related party transaction.", "label": "Related Party Transaction [Axis]", "terseLabel": "Related Party Transaction [Axis]" } } }, "localname": "RelatedPartyTransactionAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RelatedPartyTransactionDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Transaction between related party.", "label": "Related Party Transaction [Domain]", "terseLabel": "Related Party Transaction [Domain]" } } }, "localname": "RelatedPartyTransactionDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RelatedPartyTransactionsByRelatedPartyAxis": { "auth_ref": [ "r260", "r410", "r412", "r424", "r425", "r426", "r427", "r428", "r429", "r430", "r431", "r432", "r433", "r434", "r435" ], "lang": { "en-US": { "role": { "documentation": "Information by type of related party. Related parties include, but not limited to, affiliates; other entities for which investments are accounted for by the equity method by the entity; trusts for benefit of employees; and principal owners, management, and members of immediate families. It also may include other parties with which the entity may control or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests.", "label": "Related Party [Axis]", "terseLabel": "Related Party [Axis]" } } }, "localname": "RelatedPartyTransactionsByRelatedPartyAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations": { "auth_ref": [], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash outflow for short-term and long-term debt and lease obligation.", "label": "Repayments of Debt and Lease Obligation", "negatedLabel": "Repayment of debt, finance leases, and tower obligations" } } }, "localname": "RepaymentsOfDebtAndCapitalLeaseObligations", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_RepaymentsOfLinesOfCredit": { "auth_ref": [ "r79", "r106" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.", "label": "Repayments of Lines of Credit", "terseLabel": "Repayments of credit facility" } } }, "localname": "RepaymentsOfLinesOfCredit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtMarginLoanDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ReportingUnitAxis": { "auth_ref": [ "r183", "r184" ], "lang": { "en-US": { "role": { "documentation": "Information by reporting unit.", "label": "Reporting Unit [Axis]", "terseLabel": "Reporting Unit [Axis]" } } }, "localname": "ReportingUnitAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ReportingUnitDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Level of reporting at which goodwill is tested for impairment.", "label": "Reporting Unit [Domain]", "terseLabel": "Reporting Unit [Domain]" } } }, "localname": "ReportingUnitDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RestrictedCashAndCashEquivalents": { "auth_ref": [ "r9", "r89", "r95", "r438", "r457" ], "calculation": { "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsCashCashEquivalentsAndRestrictedCashDetails": { "order": 2.0, "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.", "label": "Restricted Cash and Cash Equivalents", "terseLabel": "Restricted cash included in other current assets" } } }, "localname": "RestrictedCashAndCashEquivalents", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsCashCashEquivalentsAndRestrictedCashDetails", "http://www.gci.net/role/VariableInterestEntitiesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RestrictedStockMember": { "auth_ref": [ "r116" ], "lang": { "en-US": { "role": { "documentation": "Stock including a provision that prohibits sale or substantive sale of an equity instrument for a specified period of time or until specified performance conditions are met.", "label": "Restricted Stock [Member]", "terseLabel": "RSAs" } } }, "localname": "RestrictedStockMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationOutstandingAwardsDetails", "http://www.gci.net/role/StockBasedCompensationRestrictedSharesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RestrictedStockUnitsRSUMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Share instrument which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met.", "label": "Restricted Stock Units (RSUs) [Member]", "terseLabel": "RSUs" } } }, "localname": "RestrictedStockUnitsRSUMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationRestrictedSharesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RetainedEarningsAccumulatedDeficit": { "auth_ref": [ "r22", "r244", "r458" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_StockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.", "label": "Retained Earnings (Accumulated Deficit)", "terseLabel": "Retained earnings" } } }, "localname": "RetainedEarningsAccumulatedDeficit", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_RetainedEarningsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.", "label": "Retained Earnings [Member]", "verboseLabel": "Retained earnings" } } }, "localname": "RetainedEarningsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "domainItemType" }, "us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax": { "auth_ref": [ "r250", "r251" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 1.0, "parentTag": "us-gaap_OperatingIncomeLoss", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.", "label": "Revenue from Contract with Customer, Excluding Assessed Tax", "terseLabel": "Revenue", "verboseLabel": "Revenue from contract" } } }, "localname": "RevenueFromContractWithCustomerExcludingAssessedTax", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/ConsolidatedStatementsOfOperations", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsPerformanceMeasuresDetails", "http://www.gci.net/role/QuarterlyFinancialInformationUnauditedDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RevenueFromContractWithCustomerPolicyTextBlock": { "auth_ref": [ "r98", "r255" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for revenue from contract with customer.", "label": "Revenue from Contract with Customer [Policy Text Block]", "terseLabel": "Revenue Recognition" } } }, "localname": "RevenueFromContractWithCustomerPolicyTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_RevenueRemainingPerformanceObligation": { "auth_ref": [ "r248" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of transaction price allocated to performance obligation that has not been recognized as revenue.", "label": "Revenue, Remaining Performance Obligation, Amount", "terseLabel": "Revenue, remaining performance obligation" } } }, "localname": "RevenueRemainingPerformanceObligation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesRemainingPerformanceObligationsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]", "terseLabel": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]" } } }, "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesRemainingPerformanceObligationsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1": { "auth_ref": [ "r249" ], "lang": { "en-US": { "role": { "documentation": "Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period", "terseLabel": "Revenue, remaining performance obligation, period" } } }, "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesRemainingPerformanceObligationsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis": { "auth_ref": [ "r249" ], "lang": { "en-US": { "role": { "documentation": "Start date of time band for expected timing of satisfaction of remaining performance obligation, in CCYY-MM-DD format.", "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]", "terseLabel": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]" } } }, "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesRemainingPerformanceObligationsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about expected timing for satisfying remaining performance obligation.", "label": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]", "terseLabel": "Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]" } } }, "localname": "RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesRemainingPerformanceObligationsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_Revenues": { "auth_ref": [ "r60", "r130", "r131", "r143" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).", "label": "Revenues", "negatedTerseLabel": "Revenues" } } }, "localname": "Revenues", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RevolvingCreditFacilityMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Arrangement in which loan proceeds can continuously be obtained following repayments, but the total amount borrowed cannot exceed a specified maximum amount.", "label": "Revolving Credit Facility [Member]", "terseLabel": "Revolving Credit Facility" } } }, "localname": "RevolvingCreditFacilityMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails" ], "xbrltype": "domainItemType" }, "us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability": { "auth_ref": [ "r401", "r406" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in right-of-use asset obtained in exchange for finance lease liability.", "label": "Right-of-Use Asset Obtained in Exchange for Finance Lease Liability", "terseLabel": "Finance leases" } } }, "localname": "RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability": { "auth_ref": [ "r401", "r406" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of increase in right-of-use asset obtained in exchange for operating lease liability.", "label": "Right-of-Use Asset Obtained in Exchange for Operating Lease Liability", "terseLabel": "Operating leases" } } }, "localname": "RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesSupplementalCashFlowInformationDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable": { "auth_ref": [ "r47" ], "lang": { "en-US": { "role": { "documentation": "Schedule itemizing specific types of trade accounts and notes receivable, and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.", "label": "Schedule of Accounts, Notes, Loans and Financing Receivable [Table]", "terseLabel": "Schedule of Accounts, Notes, Loans and Financing Receivable [Table]" } } }, "localname": "ScheduleOfAccountsNotesLoansAndFinancingReceivableTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesUniversalServiceFundDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfAssetRetirementObligationsTableTextBlock": { "auth_ref": [ "r210" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the carrying amount of a liability for asset retirement obligations.", "label": "Schedule of Asset Retirement Obligations [Table Text Block]", "terseLabel": "Reconciliation of Asset Retirement Obligations" } } }, "localname": "ScheduleOfAssetRetirementObligationsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable": { "auth_ref": [ "r324", "r325" ], "lang": { "en-US": { "role": { "documentation": "Schedule reflecting each material business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities.", "label": "Schedule of Business Acquisitions, by Acquisition [Table]", "terseLabel": "Schedule of Business Acquisitions, by Acquisition [Table]" } } }, "localname": "ScheduleOfBusinessAcquisitionsByAcquisitionTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails", "http://www.gci.net/role/AcquisitionPreliminaryPurchasePriceAllocationDetails", "http://www.gci.net/role/AcquisitionProFormaRevenueAndNetEarningsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfCashAndCashEquivalentsTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the components of cash and cash equivalents.", "label": "Schedule of Cash and Cash Equivalents [Table Text Block]", "terseLabel": "Schedule of Cash and Cash Equivalents" } } }, "localname": "ScheduleOfCashAndCashEquivalentsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of supplemental cash flow information for the periods presented.", "label": "Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]", "terseLabel": "Supplemental Cash Flow Information" } } }, "localname": "ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock": { "auth_ref": [ "r316" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.", "label": "Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]", "terseLabel": "Schedule of Components of Income Tax Benefit (Expense)" } } }, "localname": "ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDebtTableTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.", "label": "Schedule of Debt [Table Text Block]", "terseLabel": "Schedule of Debt" } } }, "localname": "ScheduleOfDebtTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock": { "auth_ref": [ "r309" ], "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]", "terseLabel": "Schedule of Deferred Tax Assets and Liabilities" } } }, "localname": "ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock": { "auth_ref": [ "r301" ], "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]", "terseLabel": "Schedule of Effective Income Tax Rate Reconciliation" } } }, "localname": "ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfEquityMethodInvestmentsLineItems": { "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": "Schedule of Equity Method Investments [Line Items]", "terseLabel": "Schedule of Equity Method Investments [Line Items]" } } }, "localname": "ScheduleOfEquityMethodInvestmentsLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLendingTreeDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfEquityMethodInvestmentsTable": { "auth_ref": [ "r162" ], "lang": { "en-US": { "role": { "documentation": "Summarization of information required and determined to be disclosed concerning equity method investments in common stock. The summarized information includes: (a) the name of each investee or group of investees for which combined disclosure is appropriate, (2) the percentage ownership of common stock, (3) the difference, if any, between the carrying amount of an investment and the value of the underlying equity in the net assets and the accounting treatment of difference, if any, and (4) the aggregate value of each identified investment based on its quoted market price, if available.", "label": "Schedule of Equity Method Investments [Table]", "terseLabel": "Schedule of Equity Method Investments [Table]" } } }, "localname": "ScheduleOfEquityMethodInvestmentsTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLendingTreeDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodSummaryOfFinancialInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable": { "auth_ref": [ "r187", "r192" ], "lang": { "en-US": { "role": { "documentation": "Schedule of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.", "label": "Schedule of Finite-Lived Intangible Assets [Table]", "terseLabel": "Schedule of Finite-Lived Intangible Assets [Table]" } } }, "localname": "ScheduleOfFiniteLivedIntangibleAssetsTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsIntangibleAssetsSubjectToAmortizationDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesIntangibleAssetsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock": { "auth_ref": [ "r187", "r192" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.", "label": "Schedule of Finite-Lived Intangible Assets [Table Text Block]", "terseLabel": "Schedule of Intangible Assets Subject to Amortization" } } }, "localname": "ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfGoodwillTable": { "auth_ref": [ "r182", "r185" ], "lang": { "en-US": { "role": { "documentation": "Schedule of goodwill and the changes during the year due to acquisition, sale, impairment or for other reasons.", "label": "Schedule of Goodwill [Table]", "terseLabel": "Schedule of Goodwill [Table]" } } }, "localname": "ScheduleOfGoodwillTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsRollforwardDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfGoodwillTextBlock": { "auth_ref": [ "r182", "r185" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.", "label": "Schedule of Goodwill [Table Text Block]", "terseLabel": "Schedule of Goodwill" } } }, "localname": "ScheduleOfGoodwillTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock": { "auth_ref": [ "r229" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented.", "label": "Schedule of Maturities of Long-term Debt [Table Text Block]", "terseLabel": "Schedule of Maturities of Long-term Debt" } } }, "localname": "ScheduleOfMaturitiesOfLongTermDebtTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfPropertyPlantAndEquipmentTable": { "auth_ref": [ "r32", "r203" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.", "label": "Property, Plant and Equipment [Table]", "terseLabel": "Property, Plant and Equipment [Table]" } } }, "localname": "ScheduleOfPropertyPlantAndEquipmentTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPropertyAndEquipmentDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock": { "auth_ref": [ "r118" ], "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]", "terseLabel": "Summary of Unaudited Quarterly Results of Operations" } } }, "localname": "ScheduleOfQuarterlyFinancialInformationTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/QuarterlyFinancialInformationUnauditedTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock": { "auth_ref": [ "r329" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree.", "label": "Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]", "terseLabel": "Preliminary Acquisition Price Allocation" } } }, "localname": "ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfRestrictedCashAndCashEquivalentsTextBlock": { "auth_ref": [ "r9", "r95", "r438", "r457" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of cash and cash equivalents restricted as to withdrawal or usage.", "label": "Restrictions on Cash and Cash Equivalents [Table Text Block]", "terseLabel": "Schedule of Restricted Cash" } } }, "localname": "ScheduleOfRestrictedCashAndCashEquivalentsTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SupplementalDisclosuresToConsolidatedStatementsOfCashFlowsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfSaleLeasebackTransactionsTextBlock": { "auth_ref": [ "r384", "r388", "r389", "r408" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of sale leaseback transactions.", "label": "Sale Leaseback Transactions [Table Text Block]", "verboseLabel": "Future Lease Payments on Tower Obligation" } } }, "localname": "ScheduleOfSaleLeasebackTransactionsTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable": { "auth_ref": [ "r129", "r136", "r138", "r141", "r182" ], "lang": { "en-US": { "role": { "documentation": "A table disclosing the profit or loss and total assets for each reportable segment of the entity. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.", "label": "Schedule of Segment Reporting Information, by Segment [Table]", "terseLabel": "Schedule of Segment Reporting Information, by Segment [Table]" } } }, "localname": "ScheduleOfSegmentReportingInformationBySegmentTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsOtherInformationDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsPerformanceMeasuresDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": { "auth_ref": [ "r266", "r289" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about share-based payment arrangement.", "label": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]", "terseLabel": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]" } } }, "localname": "ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationExercisesDetails", "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationIncentivePlanDetails", "http://www.gci.net/role/StockBasedCompensationOutstandingAwardsDetails", "http://www.gci.net/role/StockBasedCompensationRestrictedSharesDetails", "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock": { "auth_ref": [ "r272", "r279", "r282" ], "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]", "terseLabel": "Schedule of Number and Weighted Average Exercise Price of Awards" } } }, "localname": "ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleOfStockByClassTable": { "auth_ref": [ "r43", "r104", "r234", "r235", "r236", "r238", "r239", "r240", "r241", "r242", "r243", "r244" ], "lang": { "en-US": { "role": { "documentation": "Schedule detailing information related to equity by class of stock. Class of stock includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. It also includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity.", "label": "Schedule of Stock by Class [Table]", "terseLabel": "Schedule of Stock by Class [Table]" } } }, "localname": "ScheduleOfStockByClassTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Debt and Equity Securities, FV-NI [Line Items]", "terseLabel": "Debt and Equity Securities, FV-NI [Line Items]" } } }, "localname": "ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Disclosure of information about investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security with change in fair value recognized in net income (FV-NI).", "label": "Debt Securities, Trading, and Equity Securities, FV-NI [Table]", "terseLabel": "Debt Securities, Trading, and Equity Securities, FV-NI [Table]" } } }, "localname": "ScheduleOfTradingSecuritiesAndOtherTradingAssetsTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInEquitySecuritiesDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfVariableInterestEntitiesTable": { "auth_ref": [ "r346", "r347", "r349", "r350", "r351" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of qualitative and quantitative information related to variable interests the entity holds, whether or not such variable interest entity (VIE) is included in the reporting entity's consolidated financial statements. Includes, but is not limited to, description of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a tabular comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.", "label": "Schedule of Variable Interest Entities [Table]", "terseLabel": "Schedule of Variable Interest Entities [Table]" } } }, "localname": "ScheduleOfVariableInterestEntitiesTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAccountsReceivableAndAllowanceForDoubtfulReceivablesDetails", "http://www.gci.net/role/VariableInterestEntitiesNarrativeDetails", "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ScheduleOfVariableInterestEntitiesTextBlock": { "auth_ref": [ "r346", "r347", "r349", "r350", "r351" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.", "label": "Schedule of Variable Interest Entities [Table Text Block]", "terseLabel": "Summary of Key Terms of NMTC Transactions" } } }, "localname": "ScheduleOfVariableInterestEntitiesTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/VariableInterestEntitiesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock": { "auth_ref": [ "r192" ], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.", "label": "Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]", "terseLabel": "Schedule of Amortization Expense for Amortizable Intangible Assets" } } }, "localname": "ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue": { "auth_ref": [ "r421", "r422" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions.", "label": "Security Owned and Pledged as Collateral, Fair Value", "terseLabel": "Amount of collateral pledged" } } }, "localname": "SecurityOwnedAndPledgedAsCollateralFairValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtMarginLoanDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SegmentDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Components of an entity that engage in business activities from which they may earn revenue and incur expenses, including transactions with other components of the same entity.", "label": "Segments [Domain]", "terseLabel": "Segments [Domain]" } } }, "localname": "SegmentDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails", "http://www.gci.net/role/GoodwillAndIntangibleAssetsRollforwardDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsOtherInformationDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsPerformanceMeasuresDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SegmentReportingAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Segment Reporting [Abstract]" } } }, "localname": "SegmentReportingAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_SegmentReportingDisclosureTextBlock": { "auth_ref": [ "r148" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.", "label": "Segment Reporting Disclosure [Text Block]", "terseLabel": "Information About the Company's Operating Segments" } } }, "localname": "SegmentReportingDisclosureTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InformationAboutCompanysOperatingSegments" ], "xbrltype": "textBlockItemType" }, "us-gaap_SegmentReportingInformationLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Segment Reporting Information [Line Items]", "terseLabel": "Segment Reporting Information [Line Items]" } } }, "localname": "SegmentReportingInformationLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsOtherInformationDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsPerformanceMeasuresDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SellingGeneralAndAdministrativeExpense": { "auth_ref": [ "r67", "r173" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfOperations": { "order": 2.0, "parentTag": "us-gaap_OperatingExpenses", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.", "label": "Selling, General and Administrative Expense", "terseLabel": "Selling, general and administrative, including stock-based compensation (note 13)" } } }, "localname": "SellingGeneralAndAdministrativeExpense", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "monetaryItemType" }, "us-gaap_SellingGeneralAndAdministrativeExpenseAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Selling, General and Administrative Expense [Abstract]", "terseLabel": "Operating costs and expenses:" } } }, "localname": "SellingGeneralAndAdministrativeExpenseAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfOperations" ], "xbrltype": "stringItemType" }, "us-gaap_SeniorNotesMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Bond that takes priority over other debt securities sold by the issuer. In the event the issuer goes bankrupt, senior debt holders receive priority for (must receive) repayment prior to (relative to) junior and unsecured (general) creditors.", "label": "Senior Notes [Member]", "terseLabel": "Senior notes" } } }, "localname": "SeniorNotesMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtFairValueOfDebtDetails", "http://www.gci.net/role/DebtSeniorNotesDetails", "http://www.gci.net/role/DebtSummaryOfDebtDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SeriesCPreferredStockMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Outstanding nonredeemable series C preferred stock or outstanding series C preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer.", "label": "Series C Preferred Stock [Member]", "terseLabel": "Series C Preferred Stock" } } }, "localname": "SeriesCPreferredStockMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ShareBasedCompensation": { "auth_ref": [ "r86" ], "calculation": { "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows": { "order": 3.0, "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities", "weight": 1.0 } }, "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of noncash expense for share-based payment arrangement.", "label": "Share-based Payment Arrangement, Noncash Expense", "terseLabel": "Stock-based compensation expense" } } }, "localname": "ShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]", "terseLabel": "Aggregate intrinsic value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAdditionalGeneralDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1": { "auth_ref": [ "r267" ], "lang": { "en-US": { "role": { "documentation": "Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period", "terseLabel": "Award vesting period" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationIncentivePlanDetails" ], "xbrltype": "durationItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": { "auth_ref": [ "r278" ], "lang": { "en-US": { "role": { "documentation": "The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number", "terseLabel": "Unvested restricted stock (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationRestrictedSharesDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue": { "auth_ref": [ "r278" ], "lang": { "en-US": { "role": { "documentation": "Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value", "terseLabel": "Weighted average GDFV of unvested shares (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationRestrictedSharesDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue": { "auth_ref": [ "r281" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value", "verboseLabel": "Aggregate fair value of all restricted shares" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationRestrictedSharesDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate": { "auth_ref": [ "r285" ], "lang": { "en-US": { "role": { "documentation": "The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate", "terseLabel": "Dividend rate" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum", "terseLabel": "Volatility rate, maximum" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum", "terseLabel": "Volatility rate, minimum" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "percentItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]", "terseLabel": "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationExercisesDetails", "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationIncentivePlanDetails", "http://www.gci.net/role/StockBasedCompensationOutstandingAwardsDetails", "http://www.gci.net/role/StockBasedCompensationRestrictedSharesDetails", "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized": { "auth_ref": [ "r269" ], "lang": { "en-US": { "role": { "documentation": "Number of shares authorized for issuance under share-based payment arrangement.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized", "verboseLabel": "Maximum number of shares authorized (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationIncentivePlanDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]", "terseLabel": "Weighted average remaining life" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber": { "auth_ref": [ "r275" ], "lang": { "en-US": { "role": { "documentation": "The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number", "terseLabel": "Exercisable at end of period (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice": { "auth_ref": [ "r275" ], "lang": { "en-US": { "role": { "documentation": "The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price", "terseLabel": "Exercisable at end of period (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue": { "auth_ref": [ "r281" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value", "terseLabel": "Options exercised, intrinsic value" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationExercisesDetails", "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod": { "auth_ref": [ "r277" ], "lang": { "en-US": { "role": { "documentation": "The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period", "negatedTerseLabel": "Forfeited/Cancelled (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross", "terseLabel": "Number of options granted (in shares)", "verboseLabel": "Granted (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": { "auth_ref": [ "r280" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value", "terseLabel": "Weighted average GDFV of options granted (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue": { "auth_ref": [ "r289" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value", "terseLabel": "Outstanding at end of period" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber": { "auth_ref": [ "r274", "r289" ], "lang": { "en-US": { "role": { "documentation": "Number of options outstanding, including both vested and non-vested options.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number", "periodEndLabel": "Outstanding at end of period (in shares)", "periodStartLabel": "Outstanding at beginning of period (in shares)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]", "terseLabel": "Awards" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice": { "auth_ref": [ "r273" ], "lang": { "en-US": { "role": { "documentation": "Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price", "periodEndLabel": "Outstanding at end of period (in dollars per share)", "periodStartLabel": "Outstanding at beginning of period (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]", "terseLabel": "WAEP" } } }, "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": { "auth_ref": [ "r263", "r270" ], "lang": { "en-US": { "role": { "documentation": "Award under share-based payment arrangement.", "label": "Award Type [Domain]", "terseLabel": "Award Type [Domain]" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationOutstandingAwardsDetails", "http://www.gci.net/role/StockBasedCompensationRestrictedSharesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Weighted average price at which option holders acquired shares when converting their stock options into shares.", "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price", "terseLabel": "Exercised (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.", "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price", "terseLabel": "Forfeited/Cancelled (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "perShareItemType" }, "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": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price", "terseLabel": "Granted (in dollars per share)" } } }, "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy": { "auth_ref": [ "r97", "r266", "r271" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for award under share-based payment arrangement. Includes, but is not limited to, methodology and assumption used in measuring cost.", "label": "Share-based Payment Arrangement [Policy Text Block]", "terseLabel": "Stock-Based Compensation" } } }, "localname": "ShareBasedCompensationOptionAndIncentivePlansPolicy", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_SharePrice": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Price of a single share of a number of saleable stocks of a company.", "label": "Share Price", "terseLabel": "Share price (in dollars per share)" } } }, "localname": "SharePrice", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails" ], "xbrltype": "perShareItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod": { "auth_ref": [ "r268" ], "lang": { "en-US": { "role": { "documentation": "Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period", "terseLabel": "Award term" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationIncentivePlanDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1": { "auth_ref": [ "r284", "r290" ], "lang": { "en-US": { "role": { "documentation": "Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term", "terseLabel": "Expected term" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1": { "auth_ref": [ "r289" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value", "terseLabel": "Exercisable at end of period" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1": { "auth_ref": [ "r289" ], "lang": { "en-US": { "role": { "documentation": "Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term", "terseLabel": "Exercisable at end of period" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2": { "auth_ref": [ "r283" ], "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": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term", "terseLabel": "Outstanding at end of period" } } }, "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "durationItemType" }, "us-gaap_SignificantAccountingPoliciesTextBlock": { "auth_ref": [ "r112" ], "lang": { "en-US": { "role": { "documentation": "The entire disclosure for all significant accounting policies of the reporting entity.", "label": "Significant Accounting Policies [Text Block]", "terseLabel": "Summary of Significant Accounting Principles" } } }, "localname": "SignificantAccountingPoliciesTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciples" ], "xbrltype": "textBlockItemType" }, "us-gaap_SoftwareAndSoftwareDevelopmentCostsMember": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Purchased software applications and internally developed software for sale, licensing or long-term internal use.", "label": "Software and Software Development Costs [Member]", "terseLabel": "Internally Used Software" } } }, "localname": "SoftwareAndSoftwareDevelopmentCostsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesIntangibleAssetsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_StatementBusinessSegmentsAxis": { "auth_ref": [ "r1", "r136", "r182", "r204", "r211", "r212", "r467" ], "lang": { "en-US": { "role": { "documentation": "Information by business segments.", "label": "Segments [Axis]", "terseLabel": "Segments [Axis]" } } }, "localname": "StatementBusinessSegmentsAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/GoodwillAndIntangibleAssetsNarrativeDetails", "http://www.gci.net/role/GoodwillAndIntangibleAssetsRollforwardDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsOtherInformationDetails", "http://www.gci.net/role/InformationAboutCompanysOperatingSegmentsPerformanceMeasuresDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesDisaggregationOfRevenueDetails" ], "xbrltype": "stringItemType" }, "us-gaap_StatementClassOfStockAxis": { "auth_ref": [ "r18", "r19", "r20", "r237" ], "lang": { "en-US": { "role": { "documentation": "Information by the different classes of stock of the entity.", "label": "Class of Stock [Axis]", "terseLabel": "Class of Stock [Axis]" } } }, "localname": "StatementClassOfStockAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/BasisOfPresentationDetails", "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/InvestmentsInAffiliatesAccountedForUsingEquityMethodInvestmentInLibertyBroadbandDetails", "http://www.gci.net/role/StockBasedCompensationGrantsOfStockOptionsDetails", "http://www.gci.net/role/StockBasedCompensationOutstandingAwardsDetails", "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_StatementEquityComponentsAxis": { "auth_ref": [ "r45", "r237" ], "lang": { "en-US": { "role": { "documentation": "Information by component of equity.", "label": "Equity Components [Axis]", "terseLabel": "Equity Components [Axis]" } } }, "localname": "StatementEquityComponentsAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "stringItemType" }, "us-gaap_StatementLineItems": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.", "label": "Statement [Line Items]", "terseLabel": "Statement [Line Items]" } } }, "localname": "StatementLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/ConsolidatedStatementOfEquity", "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "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/2019-01-31", "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/2019-01-31", "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/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_StatementTable": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Schedule reflecting a Statement of Income, Statement of Cash Flows, Statement of Financial Position, Statement of Shareholders' Equity and Other Comprehensive Income, or other statement as needed.", "label": "Statement [Table]", "terseLabel": "Statement [Table]" } } }, "localname": "StatementTable", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/ConsolidatedStatementOfEquity", "http://www.gci.net/role/ConsolidatedStatementsOfCashFlows" ], "xbrltype": "stringItemType" }, "us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised": { "auth_ref": [ "r19", "r20", "r237", "r244", "r276" ], "lang": { "en-US": { "role": { "documentation": "Number of share options (or share units) exercised during the current period.", "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period", "negatedTerseLabel": "Exercised (in shares)" } } }, "localname": "StockIssuedDuringPeriodSharesStockOptionsExercised", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/StockBasedCompensationScheduleOfOutstandingAwardsDetails" ], "xbrltype": "sharesItemType" }, "us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation": { "auth_ref": [ "r19", "r20", "r244", "r265", "r280" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).", "label": "Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture", "terseLabel": "Stock-based compensation" } } }, "localname": "StockIssuedDuringPeriodValueShareBasedCompensation", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquity": { "auth_ref": [ "r20", "r23", "r24", "r153" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 1.0, "parentTag": "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.", "label": "Stockholders' Equity Attributable to Parent", "totalLabel": "Total member's equity" } } }, "localname": "StockholdersEquity", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityChangeInReportingEntity": { "auth_ref": [ "r114" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Impact on total stockholders' equity of cumulative effect of change in reporting entity. A change in reporting entity is considered as follows: (1) presenting consolidated statements in place of the financial statements of individual reporting entities; (2) changing the combination of subsidiaries that make up the group for which the consolidated financial statements are presented; and (3) changing the entities included in the combined financial statements. A business combination accounted for under the purchase method and the consolidation of a variable interest entity are not considered a change in reporting entity.", "label": "Stockholders' Equity, Change in Reporting Entity", "terseLabel": "Allocated consideration in connection with the Transactions" } } }, "localname": "StockholdersEquityChangeInReportingEntity", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest": { "auth_ref": [ "r339", "r340", "r352" ], "calculation": { "http://www.gci.net/role/ConsolidatedBalanceSheets": { "order": 2.0, "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity", "weight": 1.0 } }, "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.", "label": "Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest", "periodEndLabel": "Balance at end of period", "periodStartLabel": "Balance at beginning of period", "totalLabel": "Total equity" } } }, "localname": "StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets", "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]", "terseLabel": "Equity" } } }, "localname": "StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedBalanceSheets" ], "xbrltype": "stringItemType" }, "us-gaap_StockholdersEquityOther": { "auth_ref": [], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy.", "label": "Stockholders' Equity, Other", "negatedTerseLabel": "Other" } } }, "localname": "StockholdersEquityOther", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/ConsolidatedStatementOfEquity" ], "xbrltype": "monetaryItemType" }, "us-gaap_SubsequentEventMember": { "auth_ref": [], "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]", "terseLabel": "Subsequent Event" } } }, "localname": "SubsequentEventMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SubsequentEventTypeAxis": { "auth_ref": [ "r415" ], "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]", "terseLabel": "Subsequent Event Type [Axis]" } } }, "localname": "SubsequentEventTypeAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "stringItemType" }, "us-gaap_SubsequentEventTypeDomain": { "auth_ref": [ "r415" ], "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]", "terseLabel": "Subsequent Event Type [Domain]" } } }, "localname": "SubsequentEventTypeDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails" ], "xbrltype": "domainItemType" }, "us-gaap_SupplementalCashFlowElementsAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Supplemental Cash Flow Elements [Abstract]" } } }, "localname": "SupplementalCashFlowElementsAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "xbrltype": "stringItemType" }, "us-gaap_SupplementalCashFlowInformationAbstract": { "auth_ref": [], "lang": { "en-US": { "role": { "label": "Supplemental Cash Flow Information [Abstract]", "terseLabel": "Cash paid for amounts included in the measurement of lease liabilities:" } } }, "localname": "SupplementalCashFlowInformationAbstract", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/LeasesSupplementalCashFlowInformationDetails" ], "xbrltype": "stringItemType" }, "us-gaap_TradeAccountsReceivableMember": { "auth_ref": [ "r46" ], "lang": { "en-US": { "role": { "documentation": "Amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business.", "label": "Trade Accounts Receivable [Member]", "verboseLabel": "Trade Accounts Receivable" } } }, "localname": "TradeAccountsReceivableMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/CommitmentsAndContingenciesRuralHealthCareProgramDetails", "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAccountsReceivableAndAllowanceForDoubtfulReceivablesDetails" ], "xbrltype": "domainItemType" }, "us-gaap_TradeNamesMember": { "auth_ref": [ "r330" ], "lang": { "en-US": { "role": { "documentation": "Rights acquired through registration of a business name to gain or protect exclusive use thereof.", "label": "Trade Names [Member]", "terseLabel": "Tradename" } } }, "localname": "TradeNamesMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_TradingSecuritiesAndCertainTradingAssetsTextBlock": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).", "label": "Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block]", "terseLabel": "Investments in Equity Securities" } } }, "localname": "TradingSecuritiesAndCertainTradingAssetsTextBlock", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/InvestmentsInEquitySecuritiesTables" ], "xbrltype": "textBlockItemType" }, "us-gaap_UseOfEstimates": { "auth_ref": [ "r120", "r121", "r122", "r123", "r124", "r125", "r126" ], "lang": { "en-US": { "role": { "documentation": "Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.", "label": "Use of Estimates, Policy [Policy Text Block]", "terseLabel": "Estimates" } } }, "localname": "UseOfEstimates", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesPolicies" ], "xbrltype": "textBlockItemType" }, "us-gaap_UseRightsMember": { "auth_ref": [ "r333" ], "lang": { "en-US": { "role": { "documentation": "Legal right to use or benefit from the use of natural resources or access. Examples include, but are not limited to, drilling rights, water rights, air rights, timber cutting rights and route authorities.", "label": "Use Rights [Member]", "terseLabel": "Right-to-use" } } }, "localname": "UseRightsMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/AcquisitionNarrativeDetails" ], "xbrltype": "domainItemType" }, "us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount": { "auth_ref": [ "r296" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.", "label": "Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount", "terseLabel": "Increase in valuation allowance" } } }, "localname": "ValuationAllowanceDeferredTaxAssetChangeInAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/IncomeTaxesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis": { "auth_ref": [ "r346", "r347", "r350" ], "lang": { "en-US": { "role": { "documentation": "Information by category of Variable Interest Entity (VIE).", "label": "Variable Interest Entities [Axis]", "terseLabel": "Variable Interest Entities [Axis]" } } }, "localname": "VariableInterestEntitiesByClassificationOfEntityAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/VariableInterestEntitiesNarrativeDetails", "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets": { "auth_ref": [ "r345" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.", "label": "Variable Interest Entity, Consolidated, Carrying Amount, Assets", "verboseLabel": "Assets" } } }, "localname": "VariableInterestEntityConsolidatedCarryingAmountAssets", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/VariableInterestEntitiesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities": { "auth_ref": [ "r345" ], "crdr": "credit", "lang": { "en-US": { "role": { "documentation": "The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position.", "label": "Variable Interest Entity, Consolidated, Carrying Amount, Liabilities", "terseLabel": "Liabilities" } } }, "localname": "VariableInterestEntityConsolidatedCarryingAmountLiabilities", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/VariableInterestEntitiesNarrativeDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_VariableInterestEntityFinancialOrOtherSupportAmount": { "auth_ref": [ "r348" ], "crdr": "debit", "lang": { "en-US": { "role": { "documentation": "The amount of financial or other support the reporting entity has provided (explicitly or implicitly) to the Variable Interest Entity (VIE) that it was not previously contractually required to provide or that the reporting entity intends to provide, including, for example, situations in which the reporting entity assisted the VIE in obtaining another type of support.", "label": "Variable Interest Entity, Financial or Other Support, Amount", "terseLabel": "Loan Amount" } } }, "localname": "VariableInterestEntityFinancialOrOtherSupportAmount", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "monetaryItemType" }, "us-gaap_VariableInterestEntityLineItems": { "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": "Variable Interest Entity [Line Items]", "terseLabel": "Variable Interest Entity [Line Items]" } } }, "localname": "VariableInterestEntityLineItems", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/SummaryOfSignificantAccountingPrinciplesAccountsReceivableAndAllowanceForDoubtfulReceivablesDetails", "http://www.gci.net/role/VariableInterestEntitiesNarrativeDetails", "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "stringItemType" }, "us-gaap_VariableInterestEntityPrimaryBeneficiaryMember": { "auth_ref": [ "r346" ], "lang": { "en-US": { "role": { "documentation": "Variable Interest Entities (VIE) in which the entity has a controlling financial interest (as defined) and of which it is therefore the primary beneficiary. A controlling financial interest is determined based on both: (a) the entity's power to direct activities of the VIE that most significantly impact the VIE's economic performance and (b) the entity's obligation to absorb losses of the VIE that could potentially be significant to the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE. VIEs of which the entity is the primary beneficiary are included in the consolidated financial statements of the entity.", "label": "Variable Interest Entity, Primary Beneficiary [Member]", "terseLabel": "Primary Beneficiary" } } }, "localname": "VariableInterestEntityPrimaryBeneficiaryMember", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/VariableInterestEntitiesNarrativeDetails", "http://www.gci.net/role/VariableInterestEntitiesSummaryOfKeyTermsOfNmtcTransactionsDetails" ], "xbrltype": "domainItemType" }, "us-gaap_VariableRateAxis": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Information by type of variable rate.", "label": "Variable Rate [Axis]", "terseLabel": "Variable Rate [Axis]" } } }, "localname": "VariableRateAxis", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails", "http://www.gci.net/role/DebtWellsFargoNotePayableDetails" ], "xbrltype": "stringItemType" }, "us-gaap_VariableRateDomain": { "auth_ref": [], "lang": { "en-US": { "role": { "documentation": "Interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index.", "label": "Variable Rate [Domain]", "terseLabel": "Variable Rate [Domain]" } } }, "localname": "VariableRateDomain", "nsuri": "http://fasb.org/us-gaap/2019-01-31", "presentation": [ "http://www.gci.net/role/DebtMarginLoanDetails", "http://www.gci.net/role/DebtSeniorCreditFacilityDetails", "http://www.gci.net/role/DebtWellsFargoNotePayableDetails" ], "xbrltype": "domainItemType" } }, "unitCount": 7 } }, "std_ref": { "r0": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "205", "URI": "http://asc.fasb.org/extlink&oid=6359566&loc=d3e326-107755" }, "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(13))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r100": { "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=26873400&loc=d3e23780-122690" }, "r101": { "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=26873400&loc=d3e23780-122690" }, "r102": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(k))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r103": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(m)(1)(iii))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r104": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(d),(e))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r105": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(e),(f))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r106": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(f))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r107": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(k)(1))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r108": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.(n))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r109": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08.g)", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" }, "r11": { "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=6877327&loc=d3e13212-122682" }, "r110": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-04(a))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690" }, "r111": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.12-04.(a))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690" }, "r112": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "235", "URI": "http://asc.fasb.org/topic&trid=2122369" }, "r113": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794" }, "r114": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "250", "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22624-107794" }, "r115": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1377-109256" }, "r116": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257" }, "r117": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "260", "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257" }, "r118": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "270", "URI": "http://asc.fasb.org/extlink&oid=118952077&loc=d3e1280-108306" }, "r119": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "270", "URI": "http://asc.fasb.org/topic&trid=2126967" }, "r12": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(19))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r120": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r121": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592" }, "r122": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6161-108592" }, "r123": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6191-108592" }, "r124": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6061-108592" }, "r125": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6132-108592" }, "r126": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "275", "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6143-108592" }, "r127": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "275", "URI": "http://asc.fasb.org/topic&trid=2134479" }, "r128": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8657-108599" }, "r129": { "Name": "Accounting Standards Codification", "Paragraph": "21", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8721-108599" }, "r13": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(20))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r130": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599" }, "r131": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599" }, "r132": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599" }, "r133": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599" }, "r134": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599" }, "r135": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599" }, "r136": { "Name": "Accounting Standards Codification", "Paragraph": "22", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599" }, "r137": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599" }, "r138": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599" }, "r139": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599" }, "r14": { "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=6877327&loc=d3e13212-122682" }, "r140": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599" }, "r141": { "Name": "Accounting Standards Codification", "Paragraph": "30", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599" }, "r142": { "Name": "Accounting Standards Codification", "Paragraph": "31", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8924-108599" }, "r143": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599" }, "r144": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599" }, "r145": { "Name": "Accounting Standards Codification", "Paragraph": "32", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599" }, "r146": { "Name": "Accounting Standards Codification", "Paragraph": "40", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e9031-108599" }, "r147": { "Name": "Accounting Standards Codification", "Paragraph": "42", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "280", "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e9054-108599" }, "r148": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "280", "URI": "http://asc.fasb.org/topic&trid=2134510" }, "r149": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=118952595&loc=d3e4647-111522" }, "r15": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(23))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r150": { "Name": "Accounting Standards Codification", "Paragraph": "11B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524" }, "r151": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5074-111524" }, "r152": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "310", "URI": "http://asc.fasb.org/extlink&oid=118936363&loc=d3e5144-111524" }, "r153": { "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=27010918&loc=d3e74512-122707" }, "r154": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "320", "URI": "http://asc.fasb.org/extlink&oid=118939692&loc=d3e27405-111563" }, "r155": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "320", "URI": "http://asc.fasb.org/topic&trid=2196928" }, "r156": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "321", "URI": "http://asc.fasb.org/extlink&oid=116654751&loc=SL75117546-209714" }, "r157": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "25", "SubTopic": "10", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=117311354&loc=d3e32014-111567" }, "r158": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570" }, "r159": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33912-111571" }, "r16": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(26)(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r160": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571" }, "r161": { "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" }, "r162": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(b)", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571" }, "r163": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571" }, "r164": { "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" }, "r165": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "323", "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571" }, "r166": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "323", "URI": "http://asc.fasb.org/topic&trid=2196965" }, "r167": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=118955202&loc=SL82895884-210446" }, "r168": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447" }, "r169": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447" }, "r17": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(26)(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r170": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447" }, "r171": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(f)", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447" }, "r172": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "326", "URI": "http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447" }, "r173": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "30", "SubTopic": "10", "Topic": "330", "URI": "http://asc.fasb.org/extlink&oid=68048583&loc=d3e3636-108311" }, "r174": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Subparagraph": "(b)", "Topic": "340", "URI": "http://asc.fasb.org/extlink&oid=68051541&loc=SL49131251-203054" }, "r175": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266" }, "r176": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=99380562&loc=d3e13777-109266" }, "r177": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975" }, "r178": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267" }, "r179": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267" }, "r18": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(27))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r180": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(e)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267" }, "r181": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(h)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267" }, "r182": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267" }, "r183": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=SL108378252-109267" }, "r184": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13854-109267" }, "r185": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=108376223&loc=d3e13854-109267" }, "r186": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274" }, "r187": { "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" }, "r188": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(3)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r189": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275" }, "r19": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(28))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r190": { "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" }, "r191": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "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": "(a)(2)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r195": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)(3)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r196": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275" }, "r197": { "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" }, "r198": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "350", "URI": "http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275" }, "r199": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "350", "URI": "http://asc.fasb.org/topic&trid=2144416" }, "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(29))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r200": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228" }, "r201": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "360", "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229" }, "r202": { "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" }, "r203": { "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" }, "r204": { "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" }, "r205": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Topic": "410", "URI": "http://asc.fasb.org/extlink&oid=6392676&loc=d3e7480-110848" }, "r206": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "410", "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849" }, "r207": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(1)", "Topic": "410", "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849" }, "r208": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(2)", "Topic": "410", "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849" }, "r209": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(3)", "Topic": "410", "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849" }, "r21": { "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=6877327&loc=d3e13212-122682" }, "r210": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "410", "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849" }, "r211": { "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" }, "r212": { "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" }, "r213": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "440", "URI": "http://asc.fasb.org/topic&trid=2144648" }, "r214": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349" }, "r215": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14615-108349" }, "r216": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14394-108349" }, "r217": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349" }, "r218": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14435-108349" }, "r219": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14453-108349" }, "r22": { "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=6877327&loc=d3e13212-122682" }, "r220": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14472-108349" }, "r221": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14557-108349" }, "r222": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "450", "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14557-108349" }, "r223": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "450", "URI": "http://asc.fasb.org/topic&trid=2127136" }, "r224": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "15", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=99404985&loc=d3e10037-110241" }, "r225": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=118943654&loc=d3e12021-110248" }, "r226": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=118943654&loc=d3e12053-110248" }, "r227": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=118943654&loc=d3e12069-110248" }, "r228": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "460", "URI": "http://asc.fasb.org/extlink&oid=118956092&loc=d3e13051-110250" }, "r229": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601" }, "r23": { "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=6877327&loc=d3e13212-122682" }, "r230": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=6802200&loc=SL6230698-112601" }, "r231": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(1)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870" }, "r232": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)(3)", "Topic": "470", "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870" }, "r233": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "470", "URI": "http://asc.fasb.org/topic&trid=2208564" }, "r234": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(CFRR 211.02)", "Topic": "480", "URI": "http://asc.fasb.org/extlink&oid=65877616&loc=d3e177068-122764" }, "r235": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=65888546&loc=d3e21300-112643" }, "r236": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21553-112644" }, "r237": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644" }, "r238": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644" }, "r239": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21484-112644" }, "r24": { "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=6877327&loc=d3e13212-122682" }, "r240": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21488-112644" }, "r241": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644" }, "r242": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644" }, "r243": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "505", "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644" }, "r244": { "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=27012166&loc=d3e187085-122770" }, "r245": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "35", "Topic": "605", "URI": "http://asc.fasb.org/extlink&oid=68068069&loc=d3e57763-111642" }, "r246": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044" }, "r247": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118944033&loc=SL49130532-203044" }, "r248": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130556-203045" }, "r249": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(1)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130556-203045" }, "r25": { "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=6877327&loc=d3e13212-122682" }, "r250": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045" }, "r251": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045" }, "r252": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045" }, "r253": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118944142&loc=SL49130690-203046-203046" }, "r254": { "Name": "Accounting Standards Codification", "Paragraph": "91", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "606", "URI": "http://asc.fasb.org/extlink&oid=118944142&loc=SL49130690-203046-203046" }, "r255": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "606", "URI": "http://asc.fasb.org/topic&trid=49130388" }, "r256": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "710", "URI": "http://asc.fasb.org/topic&trid=2127225" }, "r257": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "712", "URI": "http://asc.fasb.org/topic&trid=2197446" }, "r258": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(d)(ii)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r259": { "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=118255775&loc=d3e1928-114920" }, "r26": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(4)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r260": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(n)", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920" }, "r261": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "715", "URI": "http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921" }, "r262": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "715", "URI": "http://asc.fasb.org/topic&trid=2235017" }, "r263": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901" }, "r264": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901" }, "r265": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901" }, "r266": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901" }, "r267": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r268": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r269": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(3)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r27": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02(4))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r270": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a),(g)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r271": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b),(f)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r272": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r273": { "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=116856206&loc=d3e5070-113901" }, "r274": { "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=116856206&loc=d3e5070-113901" }, "r275": { "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=116856206&loc=d3e5070-113901" }, "r276": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)(iv)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r277": { "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=116856206&loc=d3e5070-113901" }, "r278": { "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=116856206&loc=d3e5070-113901" }, "r279": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r28": { "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=6877327&loc=d3e13212-122682" }, "r280": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r281": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)(2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r282": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r283": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)(1)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r284": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r285": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)(2)(iii)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r286": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(g)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r287": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(1)(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r288": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(i)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r289": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901" }, "r29": { "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=6877327&loc=d3e13212-122682" }, "r290": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 14.D.2)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809" }, "r291": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SAB Topic 14.F)", "Topic": "718", "URI": "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809" }, "r292": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "718", "URI": "http://asc.fasb.org/topic&trid=2228938" }, "r293": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "25", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=117330534&loc=d3e28680-109314" }, "r294": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "25", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=117330534&loc=d3e28680-109314" }, "r295": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e32059-109318" }, "r296": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e32123-109318" }, "r297": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e32247-109318" }, "r298": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e32280-109318" }, "r299": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e31917-109318" }, "r3": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "205", "URI": "http://asc.fasb.org/topic&trid=2122149" }, "r30": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.13(a))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r300": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e31931-109318" }, "r301": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319" }, "r302": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319" }, "r303": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32809-109319" }, "r304": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32840-109319" }, "r305": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319" }, "r306": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319" }, "r307": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b),(c)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319" }, "r308": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319" }, "r309": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319" }, "r31": { "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=6877327&loc=d3e13212-122682" }, "r310": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32847-109319" }, "r311": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319" }, "r312": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319" }, "r313": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319" }, "r314": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319" }, "r315": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319" }, "r316": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319" }, "r317": { "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=116825942&loc=d3e330036-122817" }, "r318": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324" }, "r319": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "05", "SubTopic": "30", "Topic": "740", "URI": "http://asc.fasb.org/extlink&oid=65884525&loc=d3e40913-109327" }, "r32": { "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=6877327&loc=d3e13212-122682" }, "r320": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "740", "URI": "http://asc.fasb.org/topic&trid=2144680" }, "r321": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(1)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r322": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(2)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r323": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(h)(3)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r324": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463" }, "r325": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1486-128463" }, "r326": { "Name": "Accounting Standards Codification", "Paragraph": "37", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116868840&loc=d3e2207-128464" }, "r327": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472" }, "r328": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(e)(1)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472" }, "r329": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472" }, "r33": { "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=6877327&loc=d3e13212-122682" }, "r330": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5263-128473" }, "r331": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5333-128473" }, "r332": { "Name": "Accounting Standards Codification", "Paragraph": "31", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5419-128473" }, "r333": { "Name": "Accounting Standards Codification", "Paragraph": "31", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Subparagraph": "(i)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=77890550&loc=d3e5419-128473" }, "r334": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "30", "SubTopic": "30", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477" }, "r335": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "30", "SubTopic": "30", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477" }, "r336": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479" }, "r337": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(d)", "Topic": "805", "URI": "http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479" }, "r338": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "805", "URI": "http://asc.fasb.org/topic&trid=2303972" }, "r339": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4568447-111683" }, "r34": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19(b),22(b))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r340": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683" }, "r341": { "Name": "Accounting Standards Codification", "Paragraph": "19", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683" }, "r342": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(1)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r343": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)(2)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r344": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)(1)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684" }, "r345": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bb)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=d3e5710-111685" }, "r346": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=d3e5710-111685" }, "r347": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=d3e5728-111685" }, "r348": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=SL6759159-111685" }, "r349": { "Name": "Accounting Standards Codification", "Paragraph": "5A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=SL6759159-111685" }, "r35": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.19,20)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r350": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=d3e5747-111685" }, "r351": { "Name": "Accounting Standards Codification", "Paragraph": "9", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=118582676&loc=SL6228884-111685" }, "r352": { "Name": "Accounting Standards Codification", "Paragraph": "4I", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4590271-111686" }, "r353": { "Name": "Accounting Standards Codification", "Paragraph": "4J", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4591551-111686" }, "r354": { "Name": "Accounting Standards Codification", "Paragraph": "4K", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4591552-111686" }, "r355": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.3A-04)", "Topic": "810", "URI": "http://asc.fasb.org/extlink&oid=116822174&loc=d3e355119-122828" }, "r356": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "810", "URI": "http://asc.fasb.org/topic&trid=2197479" }, "r357": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5579240-113959" }, "r358": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959" }, "r359": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41620-113959" }, "r36": { "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=6877327&loc=d3e13212-122682" }, "r360": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41638-113959" }, "r361": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959" }, "r362": { "Name": "Accounting Standards Codification", "Paragraph": "4A", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)(1)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959" }, "r363": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a),(c)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959" }, "r364": { "Name": "Accounting Standards Codification", "Paragraph": "4B", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959" }, "r365": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41675-113959" }, "r366": { "Name": "Accounting Standards Codification", "Paragraph": "182", "Publisher": "FASB", "Section": "55", "SubTopic": "10", "Topic": "815", "URI": "http://asc.fasb.org/extlink&oid=116861445&loc=SL5629052-113961" }, "r367": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r368": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r369": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(bbb)", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r37": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.20)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r370": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "820", "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258" }, "r371": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740" }, "r372": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611" }, "r373": { "Name": "Accounting Standards Codification", "Paragraph": "11", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13467-108611" }, "r374": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13476-108611" }, "r375": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(f)", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612" }, "r376": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "825", "URI": "http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612" }, "r377": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "230", "Topic": "830", "URI": "http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906" }, "r378": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391" }, "r379": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391" }, "r38": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.21)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r380": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399" }, "r381": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399" }, "r382": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399" }, "r383": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "55", "SubTopic": "30", "Topic": "835", "URI": "http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400" }, "r384": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=84164451&loc=d3e36991-112694" }, "r385": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717" }, "r386": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "30", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=84164758&loc=d3e45031-112735" }, "r387": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(a)", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737" }, "r388": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=77913982&loc=d3e50796-112755" }, "r389": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Topic": "840", "URI": "http://asc.fasb.org/extlink&oid=77914019&loc=d3e50824-112756" }, "r39": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.22(a)(1))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r390": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977" }, "r391": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977" }, "r392": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918638-209977" }, "r393": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977" }, "r394": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977" }, "r395": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977" }, "r396": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)(3)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980" }, "r397": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980" }, "r398": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980" }, "r399": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(b)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980" }, "r4": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765" }, "r40": { "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=6877327&loc=d3e13212-122682" }, "r400": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(1)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980" }, "r401": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(2)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980" }, "r402": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(3)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980" }, "r403": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(g)(4)", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980" }, "r404": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980" }, "r405": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980" }, "r406": { "Name": "Accounting Standards Codification", "Paragraph": "53", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971" }, "r407": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "20", "Topic": "842", "URI": "http://asc.fasb.org/subtopic&trid=77888251" }, "r408": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "40", "Topic": "842", "URI": "http://asc.fasb.org/extlink&oid=77888430&loc=SL77919786-209982" }, "r409": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864" }, "r41": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.24)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r410": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864" }, "r411": { "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" }, "r412": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864" }, "r413": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "850", "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864" }, "r414": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "850", "URI": "http://asc.fasb.org/topic&trid=2122745" }, "r415": { "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" }, "r416": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "855", "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314020-165662" }, "r417": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719" }, "r418": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(1)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719" }, "r419": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(bb)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719" }, "r42": { "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=6877327&loc=d3e13212-122682" }, "r420": { "Name": "Accounting Standards Codification", "Paragraph": "4D", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)(2)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=SL51823488-111719" }, "r421": { "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" }, "r422": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "50", "SubTopic": "30", "Subparagraph": "(b)(1)(i)", "Topic": "860", "URI": "http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729" }, "r423": { "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" }, "r424": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(a)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61929-109447" }, "r425": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(b)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61929-109447" }, "r426": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(a)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62059-109447" }, "r427": { "Name": "Accounting Standards Codification", "Paragraph": "20", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(b)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62059-109447" }, "r428": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(a)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62395-109447" }, "r429": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(b)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62395-109447" }, "r43": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.28,29)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r430": { "Name": "Accounting Standards Codification", "Paragraph": "33", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(a)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62479-109447" }, "r431": { "Name": "Accounting Standards Codification", "Paragraph": "33", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(b)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62479-109447" }, "r432": { "Name": "Accounting Standards Codification", "Paragraph": "35A", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(a)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6807758-109447" }, "r433": { "Name": "Accounting Standards Codification", "Paragraph": "35A", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(b)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6807758-109447" }, "r434": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(c)(1)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61872-109447" }, "r435": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "235", "Subparagraph": "(c)(2)", "Topic": "932", "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61872-109447" }, "r436": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "25", "SubTopic": "20", "Topic": "940", "URI": "http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953" }, "r437": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "320", "Topic": "940", "URI": "http://asc.fasb.org/subtopic&trid=2176304" }, "r438": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(1)(a))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r439": { "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=6876686&loc=d3e534808-122878" }, "r44": { "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=6877327&loc=d3e13212-122682" }, "r440": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(13))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r441": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(15)(2))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r442": { "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=6876686&loc=d3e534808-122878" }, "r443": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.9-03(22))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878" }, "r444": { "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=6876686&loc=d3e534808-122878" }, "r445": { "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=6876686&loc=d3e534808-122878" }, "r446": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04(13)(f))", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260" }, "r447": { "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=116637391&loc=SL114874048-224260" }, "r448": { "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=116637391&loc=SL114874048-224260" }, "r449": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.9-04.9)", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260" }, "r45": { "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=6877327&loc=d3e13212-122682" }, "r450": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "320", "Topic": "942", "URI": "http://asc.fasb.org/subtopic&trid=2209399" }, "r451": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "470", "Topic": "942", "URI": "http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823" }, "r452": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(15)(b)(2))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r453": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(16))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r454": { "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=119400593&loc=d3e572229-122910" }, "r455": { "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=119400593&loc=d3e572229-122910" }, "r456": { "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=119400593&loc=d3e572229-122910" }, "r457": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(2))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r458": { "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=119400593&loc=d3e572229-122910" }, "r459": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(24))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r46": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.3(a)(1),(4))", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r460": { "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=119400593&loc=d3e572229-122910" }, "r461": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.7-03(a)(5))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910" }, "r462": { "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=119400593&loc=d3e572229-122910" }, "r463": { "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=119400593&loc=d3e572229-122910" }, "r464": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "220", "Subparagraph": "(SX 210.7-04(10))", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263" }, "r465": { "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=116637232&loc=SL114874131-224263" }, "r466": { "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=116637232&loc=SL114874131-224263" }, "r467": { "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" }, "r468": { "Name": "Accounting Standards Codification", "Paragraph": "13H", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Subparagraph": "(a)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=117419784&loc=SL117783719-158441" }, "r469": { "Name": "Accounting Standards Codification", "Paragraph": "13H", "Publisher": "FASB", "Section": "55", "SubTopic": "40", "Subparagraph": "(c)", "Topic": "944", "URI": "http://asc.fasb.org/extlink&oid=117419784&loc=SL117783719-158441" }, "r47": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.3,4)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r470": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.6-04(12)(b)(3))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996" }, "r471": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "S99", "SubTopic": "210", "Subparagraph": "(SX 210.6-06(3))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=6488278&loc=d3e604059-122996" }, "r472": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12(2)(i))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611133-123010" }, "r473": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12C(1)(a))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611225-123010" }, "r474": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-12C.4,6)", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611225-123010" }, "r475": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "S99", "SubTopic": "320", "Subparagraph": "(SX 210.12-13(1))", "Topic": "946", "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611282-123010" }, "r476": { "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=50485924&loc=d3e611379-123010" }, "r477": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "SubTopic": "320", "Topic": "946", "URI": "http://asc.fasb.org/subtopic&trid=2324412" }, "r478": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "740", "Topic": "954", "URI": "http://asc.fasb.org/extlink&oid=6491622&loc=d3e9504-115650" }, "r479": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "360", "Subparagraph": "(SX 210.12-28(Footnote 4))", "Topic": "970", "URI": "http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024" }, "r48": { "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=6877327&loc=d3e13212-122682" }, "r480": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "55", "SubTopic": "840", "Topic": "980", "URI": "http://asc.fasb.org/extlink&oid=84167768&loc=d3e56872-110439" }, "r481": { "Name": "Forms 10-K, 10-Q, 20-F", "Number": "240", "Publisher": "SEC", "Section": "13", "Subsection": "a-1-" }, "r482": { "Name": "Forms 10-K, 20-F, 40-F", "Number": "240", "Publisher": "SEC", "Section": "15", "Subsection": "d-1" }, "r483": { "Name": "Regulation 12B", "Number": "240", "Publisher": "SEC", "Section": "12", "Subsection": "b-2" }, "r484": { "Name": "Regulation S-T", "Number": "232", "Publisher": "SEC", "Section": "405" }, "r485": { "Name": "Securities Act", "Number": "7A", "Publisher": "SEC", "Section": "B", "Subsection": "2" }, "r49": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.8)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r5": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765" }, "r50": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-02.9)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682" }, "r51": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(a)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312" }, "r52": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "20", "Subparagraph": "(c)", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312" }, "r53": { "Name": "Accounting Standards Codification", "Paragraph": "10", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313" }, "r54": { "Name": "Accounting Standards Codification", "Paragraph": "16", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226024-175313" }, "r55": { "Name": "Accounting Standards Codification", "Paragraph": "7", "Publisher": "FASB", "Section": "55", "SubTopic": "20", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313" }, "r56": { "Name": "Accounting Standards Codification", "Paragraph": "1A", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580" }, "r57": { "Name": "Accounting Standards Codification", "Paragraph": "1B", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580" }, "r58": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116657188&loc=SL116659661-227067" }, "r59": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(210.5-03(11))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r6": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6801-107765" }, "r60": { "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=116634182&loc=SL114868664-224227" }, "r61": { "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=116634182&loc=SL114868664-224227" }, "r62": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(12))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r63": { "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=116634182&loc=SL114868664-224227" }, "r64": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03(5))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r65": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.2)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r66": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.3)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r67": { "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=116634182&loc=SL114868664-224227" }, "r68": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.7(c),9(a))", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r69": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.5-03.7)", "Topic": "220", "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227" }, "r7": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6904-107765" }, "r70": { "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=116634182&loc=SL114868664-224227" }, "r71": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585" }, "r72": { "Name": "Accounting Standards Codification", "Paragraph": "12", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585" }, "r73": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585" }, "r74": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(c)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585" }, "r75": { "Name": "Accounting Standards Codification", "Paragraph": "13", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585" }, "r76": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585" }, "r77": { "Name": "Accounting Standards Codification", "Paragraph": "14", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585" }, "r78": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585" }, "r79": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585" }, "r8": { "Name": "Accounting Standards Codification", "Paragraph": "6", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "210", "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6911-107765" }, "r80": { "Name": "Accounting Standards Codification", "Paragraph": "15", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585" }, "r81": { "Name": "Accounting Standards Codification", "Paragraph": "17", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(d)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585" }, "r82": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3000-108585" }, "r83": { "Name": "Accounting Standards Codification", "Paragraph": "24", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3521-108585" }, "r84": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585" }, "r85": { "Name": "Accounting Standards Codification", "Paragraph": "25", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585" }, "r86": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(a)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585" }, "r87": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Subparagraph": "(b)", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585" }, "r88": { "Name": "Accounting Standards Codification", "Paragraph": "28", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585" }, "r89": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "45", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3044-108585" }, "r9": { "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=6877327&loc=d3e13212-122682" }, "r90": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4273-108586" }, "r91": { "Name": "Accounting Standards Codification", "Paragraph": "2", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586" }, "r92": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586" }, "r93": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586" }, "r94": { "Name": "Accounting Standards Codification", "Paragraph": "5", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4332-108586" }, "r95": { "Name": "Accounting Standards Codification", "Paragraph": "8", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "230", "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586" }, "r96": { "Name": "Accounting Standards Codification", "Publisher": "FASB", "Topic": "230", "URI": "http://asc.fasb.org/topic&trid=2134446" }, "r97": { "Name": "Accounting Standards Codification", "Paragraph": "3", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790" }, "r98": { "Name": "Accounting Standards Codification", "Paragraph": "4", "Publisher": "FASB", "Section": "50", "SubTopic": "10", "Subparagraph": "(e)", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18823-107790" }, "r99": { "Name": "Accounting Standards Codification", "Paragraph": "1", "Publisher": "FASB", "Section": "S99", "SubTopic": "10", "Subparagraph": "(SX 210.4-08(g))", "Topic": "235", "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690" } }, "version": "2.1" }