XML 67 R57.htm IDEA: XBRL DOCUMENT
v3.22.1

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Settlements of Collateralized Indebtedness (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended
--- | --- | ---
Jan. 31, 2021 | Mar. 31, 2022 | Mar. 31, 2021
Derivative [Line Items] |  |  |
Number of shares (in shares) | 5,337,750 |  |
Notes Payable that will be reclassed to collateralized debt upon maturity |  | $ 59,451 |
Proceeds from Issuance of Secured Debt |  | 0 | $ 185,105
Comcast Synthetic Monetization Closeout |  |  |
Derivative [Line Items] |  |  |
Proceeds from Issuance of Secured Debt |  | $ 185,105 |

X
- Definition Notes Payable that was reclassed to collateralized debt upon maturity + References No definition available. + Details
Name: | atus_NotesPayableThatWasReclassedToCollateralizedDebtUponMaturity
Namespace Prefix: | atus_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of shares of equity investment that were monetized. + References No definition available. + Details
Name: | atus_NumberOfSharesMonetized
Namespace Prefix: | atus_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- 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_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceOfSecuredDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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