XML 52 R41.htm IDEA: XBRL DOCUMENT
v3.20.2

LONG-TERM DEBT (Details) $ in Millions | Mar. 26, 2020 USD ($) | Apr. 10, 2019 USD ($) | May 22, 2017 USD ($) | Jun. 30, 2020 USD ($) | Dec. 31, 2018 USD ($) | Jul. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Jul. 01, 2016 USD ($)
--- | --- | --- | --- | --- | --- | --- | --- | ---
One Communications Debt |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Financing costs |  |  | $ 0.3 |  |  |  |  |
Outstanding debt |  |  |  | $ 25.3 |  |  |  |
Unamortized financing costs |  |  |  | 0.1 |  |  |  |
One Communications Debt | Minimum |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Percentage of notional amount required for hedging arrangement |  |  | 30.00% |  |  |  |  |
One Communications Debt | Minimum | One-month LIBOR |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  | 2.50% |  |  |  |  |
One Communications Debt | Maximum | One-month LIBOR |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  | 2.75% |  |  |  |  |
Viya Debt |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Term loan assumed |  |  |  |  |  |  |  | $ 60.0
Net leverage ratio |  |  |  |  |  |  |  | 3.5
Stated interest rate |  |  |  |  |  |  | 4.00% | 4.00%
Financing costs |  |  |  |  |  |  | $ 0.9 |
Intercompany debt limit |  |  |  |  | $ 75.0 |  |  |
Outstanding debt |  |  |  | 60.0 |  |  |  |
Unamortized financing costs |  |  |  | 0.6 |  |  |  |
Revolver loan | Credit facility |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Maximum borrowing capacity |  | $ 200.0 |  |  |  |  |  |
Remaining borrowing capacity |  |  |  | 184.0 |  |  |  |
Net leverage ratio |  | 1.75 |  |  |  |  |  |
Net leverage ratio, if qualifying event |  | 3.25 |  |  |  |  |  |
Revolver loan | Credit facility | Minimum |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Commitment fee (as a percent) |  | 0.15% |  |  |  |  |  |
Revolver loan | Credit facility | Minimum | LIBOR |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 1.25% |  |  |  |  |  |
Revolver loan | Credit facility | Minimum | Base rate |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 0.25% |  |  |  |  |  |
Revolver loan | Credit facility | Maximum |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Commitment fee (as a percent) |  | 0.375% |  |  |  |  |  |
Net leverage ratio |  | 2.75 |  |  |  |  |  |
Revolver loan | Credit facility | Maximum | LIBOR |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 2.25% |  |  |  |  |  |
Revolver loan | Credit facility | Maximum | Base rate |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 1.25% |  |  |  |  |  |
Letter of credit sub-facility | Credit facility |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Maximum borrowing capacity |  | $ 75.0 |  |  |  |  |  |
Performance letters of credit issued and outstanding |  |  |  | 16.0 |  |  |  |
Swingline sub-facility | Credit facility |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Maximum borrowing capacity |  | $ 10.0 |  |  |  |  |  |
Base rate before one-week or one-month LIBOR (as a percent) |  | 1.00% |  |  |  |  |  |
Swingline sub-facility | Credit facility | Federal Funds Effective Rate |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  | 0.50% |  |  |  |  |  |
Commnet Finance | Senior secured delayed draw term loan | Receivable credit facility |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Maximum borrowing capacity | $ 75.0 |  |  |  |  |  |  |
Commnet Finance | Senior secured delayed draw term loan | Receivable credit facility | LIBOR |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) | 2.50% |  |  |  |  |  |  |
Commnet Finance | Senior secured delayed draw term loan | Receivable credit facility | Base rate |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) | 1.50% |  |  |  |  |  |  |
Cash flow hedge | Interest rate swap |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |
Notional amount |  |  |  | $ 7.9 |  | $ 11.0 |  |
Interest rate (as a percent) |  |  |  |  |  | 1.874% |  |

X
- Definition Percentage of the base rate before addition of LIBOR. + References No definition available. + Details
Name: | atni_DebtInstrumentBaseRateBeforeAdditionOfLondonInterbankOfferedRate
Namespace Prefix: | atni_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The debt instrument covenant for net leverage ratio. + References No definition available. + Details
Name: | atni_DebtInstrumentCovenantNetLeverageRatio
Namespace Prefix: | atni_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition The debt instrument covenant net leverage ratio, if qualifying event. + References No definition available. + Details
Name: | atni_DebtInstrumentCovenantNetLeverageRatioIfQualifyingEvent
Namespace Prefix: | atni_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the intercompany debt limit. + References No definition available. + Details
Name: | atni_DebtInstrumentIntercompanyDebtLimit
Namespace Prefix: | atni_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage of notional amount required for hedging arrangement. + References No definition available. + Details
Name: | atni_PercentageOfNotionalAmountRequiredForHedgingArrangement
Namespace Prefix: | atni_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of financial liabilities assumed (as defined) which have been recognized as of the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=116868840&loc=d3e2207-128464 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472 + Details
Name: | us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- 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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -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

X
- 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 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399 + Details
Name: | us-gaap_DeferredFinanceCostsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + 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 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399 + Details
Name: | us-gaap_DeferredFinanceCostsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
Name: | us-gaap_DerivativeFixedInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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
Name: | us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturitiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=atni_OneCommunicationsDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=atni_DebtInstrumentVariableRateBaseOneMonthLIBORMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=atni_ViyaDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=atni_CreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_LetterOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=atni_SwinglineSubFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_FederalFundsEffectiveSwapRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=atni_CommnetFinanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=atni_SeniorSecuredDelayedDrawTermLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=atni_ReceivableCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |