The maximum additional debt allowed under the debt covenants.

No definition available.

Name:	amch_DebtCovenantMaximumAdditionalDebt
Namespace Prefix:	amch_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The maximum amount of dividends that the entity may declare under debt covenants.

+ References

No definition available.

+ Details

Name:	amch_DebtCovenantMaximumDividends
Namespace Prefix:	amch_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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

- Definition

Average amount borrowed under the credit facility during the period.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityAverageOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any 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_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=amch_SeniorSubordinatedNotes5.875PercentDue2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=amch_SeniorSecuredRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=amch_OdeonRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

CORPORATE BORROWINGS AND CAPITAL AND FINANCING LEASE OBLIGATIONS - Financial Covenants (Details) - 12 months ended Dec. 31, 2019 € in Millions, $ in Millions	USD ($)	EUR (€)	USD ($)
Corporate borrowings and capital and financing lease obligations
Maximum additional debt	$ 215.0
Letter of Credit
Corporate borrowings and capital and financing lease obligations
Outstanding borrowings	10.0
5.875% Senior Subordinated Notes due 2022
Corporate borrowings and capital and financing lease obligations
Maximum dividends allowed through the second anniversary of issuance	2,700.0
Senior Secured Revolving Credit Facility
Corporate borrowings and capital and financing lease obligations
Available borrowing capacity			$ 332.0
Odeon Revolving Credit Facility
Corporate borrowings and capital and financing lease obligations
Outstanding borrowings	$ 0.0
Odeon Revolving Credit Facility \| Letter of Credit
Corporate borrowings and capital and financing lease obligations
Available borrowing capacity		€ 89.2	$ 14.2