Debt Instrument, Principal Amount Novated

No definition available.

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Namespace Prefix:	lila_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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Balance Type:	credit
Period Type:	duration

- 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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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

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

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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

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Balance Type:	na
Period Type:	duration

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Balance Type:	credit
Period Type:	duration

- Definition

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.

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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

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.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

+ References

No definition available.

+ Details

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Debt and Finance Lease Obligations - C&W Credit Facilities (Details) - USD ($)		1 Months Ended		3 Months Ended	12 Months Ended
	Mar. 31, 2019	Feb. 28, 2018	May 31, 2017	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Mar. 31, 2018	Jan. 31, 2018
Debt Instrument [Line Items]
Outstanding principal amount					$ 8,512,500,000	$ 6,710,700,000
Loss on debt modification and extinguishment, net					19,800,000	32,100,000	$ 51,800,000
Medium-term Notes
Debt Instrument [Line Items]
Loss on debt modification and extinguishment, net			$ 25,000,000
C&W Term Loan B-3 Facility \| Medium-term Notes
Debt Instrument [Line Items]
Extinguishment of debt		$ 1,825,000,000
C&W Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Extinguishment of debt					40,000,000
C&W Term Loans \| Medium-term Notes
Debt Instrument [Line Items]
Extinguishment of debt			1,100,000,000
C&W Financing Transactions
Debt Instrument [Line Items]
Loss on debt modification and extinguishment, net		13,000,000
Senior Notes \| C&W Regional Facilities
Debt Instrument [Line Items]
Stated interest rate of debt									4.35%
Line of Credit \| C&W Credit Facilities
Debt Instrument [Line Items]
Unused borrowing capacity					728,200,000
Outstanding principal amount					2,006,100,000	$ 2,193,600,000
Carrying value					2,000,800,000
Line of Credit \| C&W Revolving Credit Facility
Debt Instrument [Line Items]
Unused borrowing capacity					625,000,000.0
Outstanding principal amount					0
Carrying value					$ 0
Facility amount								$ 625,000,000
Fee on unused portion of credit facility					0.50%
Line of Credit \| C&W Revolving Credit Facility \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate					3.25%
Line of Credit \| C&W Regional Facilities
Debt Instrument [Line Items]
Interest rate					4.463%
Unused borrowing capacity					$ 103,200,000
Outstanding principal amount					366,100,000
Carrying value					364,300,000
Line of Credit \| C&W Term Loan B-4 Facility
Debt Instrument [Line Items]
Unused borrowing capacity					0
Outstanding principal amount					1,640,000,000.0
Carrying value					$ 1,636,500,000
Line of Credit \| C&W Term Loan B-4 Facility \| LIBOR
Debt Instrument [Line Items]
Basis spread on variable rate					3.25%
Medium-term Notes \| C&W Term Loan B-3 Facility
Debt Instrument [Line Items]
Original issue amount			1,125,000,000
Debt Instrument, Principal Amount Novated			$ 929,000,000
Medium-term Notes \| C&W Regional Facilities
Debt Instrument [Line Items]
Original issue amount									$ 100,000,000
Medium-term Notes \| C&W Term Loan B-4 Facility
Debt Instrument [Line Items]
Original issue amount		$ 1,875,000,000
UTS
Debt Instrument [Line Items]
Liabilities incurred	$ 170,000,000			$ 170,000,000