Debt Instrument, Required Repayment Percent of Outstanding Principal Amount

No definition available.

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Name Accounting Standards Codification
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_MediumTermNotesMember
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Data Type:	na
Balance Type:
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- Details

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- Details

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- Details

Name:	us-gaap_DebtInstrumentAxis=lila_VTRCreditFacilitiesMember
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- Details

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- Details

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Debt and Capital Lease Obligations - VTR Narrative and Credit Facilities (Details) $ in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2018 CLP ($)	Sep. 30, 2018 USD ($)	May 31, 2018 CLP ($)	May 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Outstanding principal amount		$ 6,648.2			$ 6,380.5
Carrying value		6,614.6			6,354.0
Medium-term Notes \| VTR TLB-1 Facility
Debt Instrument [Line Items]
Face amount of debt			$ 141,000.0	$ 215.0
Unused borrowing capacity	$ 0.0	0.0
Outstanding principal amount	$ 140,900.0	214.5
Carrying value		$ 209.2
Required repayment percent	50.00%	50.00%
Medium-term Notes \| VTR TLB-1 Facility \| ICP
Debt Instrument [Line Items]
Basis spread on variable rate	3.80%
Medium-term Notes \| VTR TLB-2 Facility
Debt Instrument [Line Items]
Face amount of debt			$ 33,000.0	$ 50.0
Stated interest rate of debt	7.00%	7.00%
Unused borrowing capacity		$ 0.0
Outstanding principal amount	$ 33,100.0	50.4
Carrying value		49.2
Line of Credit \| VTR Credit Facilities
Debt Instrument [Line Items]
Unused borrowing capacity		230.7
Outstanding principal amount		264.9			$ 0.0
Carrying value		258.4
Line of Credit \| VTR RCF – A
Debt Instrument [Line Items]
Unused borrowing capacity	30,000.0	45.7
Outstanding principal amount	$ 0.0	0.0
Carrying value		0.0
Line of Credit \| VTR RCF – A \| TAB
Debt Instrument [Line Items]
Basis spread on variable rate	3.25%
Line of Credit \| VTR RCF – B
Debt Instrument [Line Items]
Unused borrowing capacity		185.0
Outstanding principal amount		0.0
Carrying value		0.0
Line of Credit \| VTR RCF – B \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate	2.75%
Line of Credit \| VTR RCF – C
Debt Instrument [Line Items]
Unused borrowing capacity		$ 1.0