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Related Party Transactions - Fees Related to Property and Project Management Agreements (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Ashford Inc.
Related Party Transaction [Line Items]
Corporate, general and administrative	$ (3,522)	$ 0	$ (2,331)	$ 19

X

- Definition

Corporate general and administrative expense reimbursements incurred to related parties.

+ References

No definition available.

+ Details

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Namespace Prefix:	aht_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_CounterpartyNameAxis=aht_AshfordInc.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: