Redeemable Noncontrolling Interests in Operating Partnership - Narrative (Details)	3 Months Ended
Mar. 31, 2024 shares
Noncontrolling Interest [Line Items]
Common unit limited partnership interest redemption for common stock (in shares)	1
LTIP and Performance LTIP
Noncontrolling Interest [Line Items]
Units outstanding (in shares)	2,000,000
Units which have not reached full economic parity with common units (in shares)	124,000
LTIP units
Noncontrolling Interest [Line Items]
Vesting period (in years)	3 years
Common partnership unit per converted LTIP unit (in shares)	1
Performance LTIP units
Noncontrolling Interest [Line Items]
Units outstanding (in shares)	1,500,000
Units which have not reached full economic parity with common units (in shares)	1,500,000
Performance LTIP units \| Minimum
Noncontrolling Interest [Line Items]
Performance adjustment range (as a percent)	0.00%
Performance adjustment range on initial calculation (as a percent)	75.00%
Performance adjustment range on initial calculation, final calculation (as a percent)	0.00%
Performance LTIP units \| Maximum
Noncontrolling Interest [Line Items]
Performance adjustment range (as a percent)	200.00%
Performance adjustment range on initial calculation (as a percent)	125.00%
Performance adjustment range on initial calculation, final calculation (as a percent)	250.00%
Performance LTIP units \| Maximum \| 2022 and 2023 Grants
Noncontrolling Interest [Line Items]
Performance adjustment range (as a percent)	250.00%

Common Partnership Unit Per Converted Long Term Incentive Plan Unit

No definition available.

Name:	aht_CommonPartnershipUnitPerConvertedLongTermIncentivePlanUnit
Namespace Prefix:	aht_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Common unit limited partnership interest redemption for common stock shares.

+ References

No definition available.

+ Details

Name:	aht_CommonUnitLimitedPartnershipInterestRedemptionForCommonStockShares
Namespace Prefix:	aht_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Adjustment Range

+ References

No definition available.

+ Details

Name:	aht_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceAdjustmentRange
Namespace Prefix:	aht_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Adjustment Range, Final Calculation

+ References

No definition available.

+ Details

Name:	aht_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceAdjustmentRangeFinalCalculation
Namespace Prefix:	aht_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Adjustment Range On Initial Calculation

+ References

No definition available.

+ Details

Name:	aht_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerformanceAdjustmentRangeOnInitialCalculation
Namespace Prefix:	aht_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Units Which Have Not Reached Full Economic Parity With Common Units

+ References

No definition available.

+ Details

Name:	aht_UnitsWhichHaveNotReachedFullEconomicParityWithCommonUnits
Namespace Prefix:	aht_
Data Type:	xbrli:sharesItemType
Balance Type:	na
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_MinorityInterestLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_AwardTypeAxis=aht_LongTermIncentivePlanUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=aht_LongTermIncentivePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=aht_PerformanceLongTermIncentivePlanUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardDateAxis=aht_Year2022And2023GrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: