$AHT
ASHFORD HOSPITALITY TRUST INC Stock $aht

$aht Overview Financials Valuation SEC Filings Company Website

2020 Q4 Form 10-K Financial Statement

#000123258221000060 Filed on March 16, 2021

Income Statement

Concept	2020 Q4	2019 Q4	2019 Q3
Revenue	$90.25M	$354.7M	$374.2M
YoY Change	-74.55%	3.25%	5.14%
Cost Of Revenue	$100.9M	$252.5M	$238.9M
YoY Change	-60.04%	3.95%	6.16%
Gross Profit	-$10.60M	$102.2M	$135.3M
YoY Change	-110.37%	1.59%	3.39%
Gross Profit Margin	-11.74%	28.82%	36.16%
Selling, General & Admin	$22.60M	$17.80M	$17.00M
YoY Change	26.97%	10.56%	25.0%
% of Gross Profit		17.42%	12.56%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$58.50M	$66.40M	$67.90M
YoY Change	-11.9%	0.61%	4.62%
% of Gross Profit		64.97%	50.17%
Operating Expenses	$82.60M	$85.70M	$87.30M
YoY Change	-3.62%	1.42%	8.04%
Operating Profit	-$99.67M	$12.53M	$29.44M
YoY Change	-895.47%	-323.49%	0.4%
Interest Expense	-$26.20M	-$61.20M	-$68.00M
YoY Change	-57.19%	0.82%	10.93%
% of Operating Profit		-488.47%	-230.99%
Other Income/Expense, Net	-$9.200M	$11.50M	-$328.0K
YoY Change	-180.0%		62.38%
Pretax Income	-$137.4M	-$37.50M	-$39.34M
YoY Change	266.4%	-43.1%	16.58%
Income Tax	$200.0K	-$1.800M	-$249.0K
% Of Pretax Income
Net Earnings	-$125.8M	-$28.20M	-$31.18M
YoY Change	346.1%	-48.54%	13.01%
Net Earnings / Revenue	-139.39%	-7.95%	-8.33%
Basic Earnings Per Share			-$4.21
Diluted Earnings Per Share	-$4.071M	-$2.820M	-$4.21
COMMON SHARES
Basic Shares Outstanding	14.63M shares	102.1M shares	9.997M shares
Diluted Shares Outstanding	3.075M shares	9.997M shares	9.997M shares

Balance Sheet

Concept	2020 Q4	2019 Q4	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$92.91M	$277.2M	$270.7M
YoY Change	-66.49%	-18.71%	-16.9%
Cash & Equivalents	$92.91M	$262.6M	$256.3M
Short-Term Investments	$0.00	$14.59M	$14.45M
Other Short-Term Assets	$18.40M	$21.90M	$29.90M
YoY Change	-15.98%	9.5%	0.67%
Inventory	$2.447M	$4.346M	$4.370M
Prepaid Expenses
Receivables	$36.90M	$60.00M	$79.40M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$150.6M	$348.8M	$370.0M
YoY Change	-56.82%	-13.28%	-15.76%
LONG-TERM ASSETS
Property, Plant & Equipment	$3.427B	$4.108B	$4.172B
YoY Change	-16.59%	0.08%	2.01%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$2.811M	$2.829M	$2.928M
YoY Change	-0.64%	-36.98%	-35.14%
Other Assets	$76.30M	$138.5M	$151.6M
YoY Change	-44.91%	11.6%	4.91%
Total Long-Term Assets	$3.584B	$4.343B	$4.399B
YoY Change	-17.47%	1.37%	2.44%
TOTAL ASSETS
Total Short-Term Assets	$150.6M	$348.8M	$370.0M
Total Long-Term Assets	$3.584B	$4.343B	$4.399B
Total Assets	$3.734B	$4.691B	$4.769B
YoY Change	-20.4%	0.12%	0.75%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$13.60M	$9.100M	$10.40M
YoY Change	49.45%	-66.3%	15.56%
Accrued Expenses	$144.0M	$53.30M	$43.50M
YoY Change	170.17%
Deferred Revenue	$11.60M
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$158.5M	$83.20M	$74.50M
YoY Change	90.5%	54.65%	100.81%
LONG-TERM LIABILITIES
Long-Term Debt	$3.729B	$4.107B	$4.110B
YoY Change	-9.2%	4.56%	5.53%
Other Long-Term Liabilities	$7.600M	$28.20M	$28.50M
YoY Change	-73.05%	-17.54%	-19.49%
Total Long-Term Liabilities	$3.737B	$4.135B	$4.138B
YoY Change	-9.63%	4.37%	5.3%
TOTAL LIABILITIES
Total Short-Term Liabilities	$158.5M	$83.20M	$74.50M
Total Long-Term Liabilities	$3.737B	$4.135B	$4.138B
Total Liabilities	$3.995B	$4.352B	$4.381B
YoY Change	-8.21%	4.82%	6.47%
SHAREHOLDERS EQUITY
Retained Earnings	-$2.093B	-$1.558B	-$1.514B
YoY Change	34.35%	14.31%	15.31%
Common Stock	$64.00K	$102.0K	$1.021M
YoY Change	-37.25%	-89.9%	1.09%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	-$283.6M	$268.8M	$309.2M
YoY Change
Total Liabilities & Shareholders Equity	$3.734B	$4.691B	$4.769B
YoY Change	-20.4%	0.12%	0.75%

Cashflow Statement

Concept	2020 Q4	2019 Q4	2019 Q3
OPERATING ACTIVITIES
Net Income	-$125.8M	-$28.20M	-$31.18M
YoY Change	346.1%	-48.54%	13.01%
Depreciation, Depletion And Amortization	$58.50M	$66.40M	$67.90M
YoY Change	-11.9%	0.61%	4.62%
Cash From Operating Activities	-$50.60M	$27.40M	$57.50M
YoY Change	-284.67%	-38.15%	50.13%
INVESTING ACTIVITIES
Capital Expenditures	-$4.600M	-$37.50M	-$39.70M
YoY Change	-87.73%	-58.47%	-20.76%
Acquisitions
YoY Change
Other Investing Activities	$900.0K	$31.50M	$70.30M
YoY Change	-97.14%	31400.0%	-11816.67%
Cash From Investing Activities	-$3.700M	-$6.000M	$30.60M
YoY Change	-38.33%	-93.35%	-160.36%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	11.20M	-28.30M	-83.50M
YoY Change	-139.58%	-250.53%	13.76%
NET CHANGE
Cash From Operating Activities	-50.60M	27.40M	57.50M
Cash From Investing Activities	-3.700M	-6.000M	30.60M
Cash From Financing Activities	11.20M	-28.30M	-83.50M
Net Change In Cash	-43.10M	-6.900M	4.600M
YoY Change	524.64%	-74.54%	-105.36%
FREE CASH FLOW
Cash From Operating Activities	-$50.60M	$27.40M	$57.50M
Capital Expenditures	-$4.600M	-$37.50M	-$39.70M
Free Cash Flow	-$46.00M	$64.90M	$97.20M
YoY Change	-170.88%	-51.78%	9.95%

Facts In Submission

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CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	001-31775
CY2020	dei	Entity Registrant Name EntityRegistrantName	ASHFORD HOSPITALITY TRUST, INC.
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	86-1062192
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CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
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CY2018	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-2178000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-634557000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-141461000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-153527000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1335000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1218000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2782000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-633222000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-142679000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-156309000	USD
CY2020	aht	Comprehensive Income Loss Net Of Tax Portion Attributable To Nonredeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToNonredeemableNoncontrollingInterest	-338000	USD
CY2019	aht	Comprehensive Income Loss Net Of Tax Portion Attributable To Nonredeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToNonredeemableNoncontrollingInterest	-112000	USD
CY2018	aht	Comprehensive Income Loss Net Of Tax Portion Attributable To Nonredeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToNonredeemableNoncontrollingInterest	-30000	USD
CY2020	aht	Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	-89008000	USD
CY2019	aht	Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	-28932000	USD
CY2018	aht	Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	-29313000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-543876000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-113635000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-126966000	USD
CY2020	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	32117000	USD
CY2019	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	42577000	USD
CY2018	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	42577000	USD
CY2020	aht	Gain Loss On Extinguishment Of Preferred Stock GainLossOnExtinguishmentOfPreferredStock	55477000	USD
CY2019	aht	Gain Loss On Extinguishment Of Preferred Stock GainLossOnExtinguishmentOfPreferredStock	0	USD
CY2018	aht	Gain Loss On Extinguishment Of Preferred Stock GainLossOnExtinguishmentOfPreferredStock	0	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-520516000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-156212000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-169543000	USD
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-33.00
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-15.77
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-17.52
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15756000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9984000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9728000	shares
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-33.00
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-15.77
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-17.52
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15756000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9984000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9728000	shares
CY2020	us-gaap	Profit Loss ProfitLoss	-633222000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-142679000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-156309000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	0	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-633222000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-142679000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-156309000	USD
CY2020	aht	Comprehensive Income Loss Net Of Tax Portion Attributable To Nonredeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToNonredeemableNoncontrollingInterest	-338000	USD
CY2019	aht	Comprehensive Income Loss Net Of Tax Portion Attributable To Nonredeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToNonredeemableNoncontrollingInterest	-112000	USD
CY2018	aht	Comprehensive Income Loss Net Of Tax Portion Attributable To Nonredeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToNonredeemableNoncontrollingInterest	-30000	USD
CY2020	aht	Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	-89008000	USD
CY2019	aht	Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	-28932000	USD
CY2018	aht	Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	-29313000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-543876000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-113635000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-126966000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	633146000	USD
CY2018	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	1598000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	16098000	USD
CY2018	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	123000	USD
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	14689000	USD
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	4.80
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	47951000	USD
CY2018	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	8171000	USD
CY2018	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	-126996000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	453105000	USD
CY2019	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	1031000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	12413000	USD
CY2019	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	91000	USD
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	3.00
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	31116000	USD
CY2019	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-9445000	USD
CY2019	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	-113747000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	269266000	USD
CY2020	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	399000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5916000	USD
CY2020	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	USD
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	31872000	USD
CY2020	aht	Claw Back Of Dividends ClawBackOfDividends	606000	USD
CY2020	us-gaap	Stock Issued During Period Value Conversion Of Units StockIssuedDuringPeriodValueConversionOfUnits	959000	USD
CY2020	us-gaap	Minority Interest Change In Redemption Value MinorityInterestChangeInRedemptionValue	-36817000	USD
CY2020	aht	Extinguishment Of Preferred Stock ExtinguishmentOfPreferredStock	0	USD
CY2020	us-gaap	Net Income Loss Including Portion Attributable To Nonredeemable Noncontrolling Interest NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest	-544214000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	-283455000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-633222000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-142679000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	-156309000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	252765000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	269003000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	258458000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	91721000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	33628000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	23391000	USD
CY2020	aht	Amortization Of Intangible Asset AmortizationOfIntangibleAsset	307000	USD
CY2019	aht	Amortization Of Intangible Asset AmortizationOfIntangibleAsset	257000	USD
CY2018	aht	Amortization Of Intangible Asset AmortizationOfIntangibleAsset	237000	USD
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	768000	USD
CY2019	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	954000	USD
CY2018	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	577000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	1810000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	3127000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2148000	USD
CY2020	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-1058000	USD
CY2019	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-159000	USD
CY2018	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	135000	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-448000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-2307000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	867000	USD
CY2020	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	-36680000	USD
CY2019	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	26126000	USD
CY2018	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	475000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	90349000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2018	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2020	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	801000	USD
CY2019	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	1980000	USD
CY2018	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-924000	USD
CY2020	aht	Gain Loss On Investment In Affiliated Entity GainLossOnInvestmentInAffiliatedEntity	0	USD
CY2019	aht	Gain Loss On Investment In Affiliated Entity GainLossOnInvestmentInAffiliatedEntity	11792000	USD
CY2018	aht	Gain Loss On Investment In Affiliated Entity GainLossOnInvestmentInAffiliatedEntity	0	USD
CY2020	us-gaap	Payments For Purchase Of Securities Operating Activities PaymentsForPurchaseOfSecuritiesOperatingActivities	1997000	USD
CY2019	us-gaap	Payments For Purchase Of Securities Operating Activities PaymentsForPurchaseOfSecuritiesOperatingActivities	4208000	USD
CY2018	us-gaap	Payments For Purchase Of Securities Operating Activities PaymentsForPurchaseOfSecuritiesOperatingActivities	12228000	USD
CY2020	us-gaap	Proceeds From Sale Of Securities Operating Activities ProceedsFromSaleOfSecuritiesOperatingActivities	17389000	USD
CY2019	us-gaap	Proceeds From Sale Of Securities Operating Activities ProceedsFromSaleOfSecuritiesOperatingActivities	13413000	USD
CY2018	us-gaap	Proceeds From Sale Of Securities Operating Activities ProceedsFromSaleOfSecuritiesOperatingActivities	16414000	USD
CY2020	aht	Gain Losson Insurance Settlement GainLossonInsuranceSettlement	0	USD
CY2019	aht	Gain Losson Insurance Settlement GainLossonInsuranceSettlement	-450000	USD
CY2018	aht	Gain Losson Insurance Settlement GainLossonInsuranceSettlement	-928000	USD
CY2020	aht	Net Settlement Of Trading Derivatives NetSettlementOfTradingDerivatives	-2347000	USD
CY2019	aht	Net Settlement Of Trading Derivatives NetSettlementOfTradingDerivatives	3485000	USD
CY2018	aht	Net Settlement Of Trading Derivatives NetSettlementOfTradingDerivatives	-648000	USD
CY2020	us-gaap	Gain Loss On Derivative Instruments Held For Trading Purposes Net GainLossOnDerivativeInstrumentsHeldForTradingPurposesNet	878000	USD
CY2019	us-gaap	Gain Loss On Derivative Instruments Held For Trading Purposes Net GainLossOnDerivativeInstrumentsHeldForTradingPurposesNet	-5294000	USD
CY2018	us-gaap	Gain Loss On Derivative Instruments Held For Trading Purposes Net GainLossOnDerivativeInstrumentsHeldForTradingPurposesNet	-2178000	USD
CY2020	aht	Amortization Of Loan Costs Write Off Of Loan Costs And Exit Fees AmortizationOfLoanCostsWriteOffOfLoanCostsAndExitFees	10229000	USD
CY2019	aht	Amortization Of Loan Costs Write Off Of Loan Costs And Exit Fees AmortizationOfLoanCostsWriteOffOfLoanCostsAndExitFees	32153000	USD
CY2018	aht	Amortization Of Loan Costs Write Off Of Loan Costs And Exit Fees AmortizationOfLoanCostsWriteOffOfLoanCostsAndExitFees	30012000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	10746000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	19717000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	26939000	USD
CY2020	aht	Amortization Of Parking Asset AmortizationOfParkingAsset	117000	USD
CY2019	aht	Amortization Of Parking Asset AmortizationOfParkingAsset	118000	USD
CY2018	aht	Amortization Of Parking Asset AmortizationOfParkingAsset	0	USD
CY2020	us-gaap	Other Noncash Income OtherNoncashIncome	854000	USD
CY2019	us-gaap	Other Noncash Income OtherNoncashIncome	191000	USD
CY2018	us-gaap	Other Noncash Income OtherNoncashIncome	0	USD
CY2020	aht	Increase Decrease In Accounts Receivable And Inventories IncreaseDecreaseInAccountsReceivableAndInventories	-15738000	USD
CY2019	aht	Increase Decrease In Accounts Receivable And Inventories IncreaseDecreaseInAccountsReceivableAndInventories	6639000	USD
CY2018	aht	Increase Decrease In Accounts Receivable And Inventories IncreaseDecreaseInAccountsReceivableAndInventories	-5553000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-1079000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-2307000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	1946000	USD
CY2020	aht	Increase Decrease In Operating Lease Right Of Use Assets IncreaseDecreaseInOperatingLeaseRightOfUseAssets	-1006000	USD
CY2019	aht	Increase Decrease In Operating Lease Right Of Use Assets IncreaseDecreaseInOperatingLeaseRightOfUseAssets	-1322000	USD
CY2018	aht	Increase Decrease In Operating Lease Right Of Use Assets IncreaseDecreaseInOperatingLeaseRightOfUseAssets	0	USD
CY2020	aht	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-595000	USD
CY2019	aht	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-937000	USD
CY2018	aht	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	0	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	143241000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-4177000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	376000	USD
CY2020	aht	Increase Decrease In Due To Related Parties Excluding Amount Due To Affiliates IncreaseDecreaseInDueToRelatedPartiesExcludingAmountDueToAffiliates	-2782000	USD
CY2019	aht	Increase Decrease In Due To Related Parties Excluding Amount Due To Affiliates IncreaseDecreaseInDueToRelatedPartiesExcludingAmountDueToAffiliates	-4496000	USD
CY2018	aht	Increase Decrease In Due To Related Parties Excluding Amount Due To Affiliates IncreaseDecreaseInDueToRelatedPartiesExcludingAmountDueToAffiliates	-574000	USD
CY2020	aht	Increase Decrease In Due To From Third Party Hotel Managers IncreaseDecreaseInDueToFromThirdPartyHotelManagers	3763000	USD
CY2019	aht	Increase Decrease In Due To From Third Party Hotel Managers IncreaseDecreaseInDueToFromThirdPartyHotelManagers	4372000	USD
CY2018	aht	Increase Decrease In Due To From Third Party Hotel Managers IncreaseDecreaseInDueToFromThirdPartyHotelManagers	-4214000	USD
CY2020	us-gaap	Increase Decrease In Due To Affiliates IncreaseDecreaseInDueToAffiliates	6091000	USD
CY2019	us-gaap	Increase Decrease In Due To Affiliates IncreaseDecreaseInDueToAffiliates	-1256000	USD
CY2018	us-gaap	Increase Decrease In Due To Affiliates IncreaseDecreaseInDueToAffiliates	-8793000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-11090000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	234000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	1532000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-149531000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	177209000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	181560000	USD
CY2020	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	430000	USD
CY2019	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	647000	USD
CY2018	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	667000	USD
CY2020	aht	Proceeds From Franchise Agreement Extension ProceedsFromFranchiseAgreementExtension	0	USD
CY2019	aht	Proceeds From Franchise Agreement Extension ProceedsFromFranchiseAgreementExtension	4000000	USD
CY2018	aht	Proceeds From Franchise Agreement Extension ProceedsFromFranchiseAgreementExtension	0	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1113000	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	212552000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	162593000	USD
CY2020	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	46206000	USD
CY2019	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	159220000	USD
CY2018	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	207325000	USD
CY2020	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	38763000	USD
CY2019	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	102676000	USD
CY2018	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	40629000	USD
CY2020	aht	Payments For Initial Franchise Fees PaymentsForInitialFranchiseFees	0	USD
CY2019	aht	Payments For Initial Franchise Fees PaymentsForInitialFranchiseFees	475000	USD
CY2018	aht	Payments For Initial Franchise Fees PaymentsForInitialFranchiseFees	329000	USD
CY2020	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	0	USD
CY2019	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	11792000	USD
CY2018	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	0	USD
CY2020	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	1382000	USD
CY2019	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	1233000	USD
CY2018	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	651000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-7604000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-253193000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-329634000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	88000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	404795000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2705769000	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	137849000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	272357000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2463100000	USD
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	26682000	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	9643000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	55555000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	28619000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	86210000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	97445000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	399000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1031000	USD
CY2018	aht	Other Assets From Sale Of Land Held For Use OtherAssetsFromSaleOfLandHeldForUse	0	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1598000	USD
CY2020	us-gaap	Payments For Derivative Instrument Financing Activities PaymentsForDerivativeInstrumentFinancingActivities	83000	USD
CY2019	us-gaap	Payments For Derivative Instrument Financing Activities PaymentsForDerivativeInstrumentFinancingActivities	1112000	USD
CY2018	us-gaap	Payments For Derivative Instrument Financing Activities PaymentsForDerivativeInstrumentFinancingActivities	3162000	USD
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	31873000	USD
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	14752000	USD
CY2020	aht	Preferred And Common Stock Offering Costs PreferredAndCommonStockOfferingCosts	0	USD
CY2019	aht	Preferred And Common Stock Offering Costs PreferredAndCommonStockOfferingCosts	91000	USD
CY2018	aht	Preferred And Common Stock Offering Costs PreferredAndCommonStockOfferingCosts	0	USD
CY2020	aht	Proceedsfor Depositon Erfp Assets ProceedsforDepositonERFPAssets	0	USD
CY2019	aht	Proceedsfor Depositon Erfp Assets ProceedsforDepositonERFPAssets	0	USD
CY2018	aht	Proceedsfor Depositon Erfp Assets ProceedsforDepositonERFPAssets	16100000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	28000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	53000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-73759000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	34379000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	115814000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-230894000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-41605000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-32260000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	398207000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	439812000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	472072000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	167313000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	398207000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	439812000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	91372000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	233711000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	215344000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1021000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-1059000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1890000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	12640000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	24239000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	23615000	USD
CY2020	aht	Non Cash Dividends Paid NonCashDividendsPaid	0	USD
CY2019	aht	Non Cash Dividends Paid NonCashDividendsPaid	0	USD
CY2018	aht	Non Cash Dividends Paid NonCashDividendsPaid	123000	USD
CY2020	aht	Non Cash Accrued Stock Offering Costs NonCashAccruedStockOfferingCosts	0	USD
CY2019	aht	Non Cash Accrued Stock Offering Costs NonCashAccruedStockOfferingCosts	0	USD
CY2018	aht	Non Cash Accrued Stock Offering Costs NonCashAccruedStockOfferingCosts	1075000	USD
CY2020	aht	Notes Receivable From Sale Of Land Held For Use NotesReceivableFromSaleOfLandHeldForUse	0	USD
CY2019	aht	Notes Receivable From Sale Of Land Held For Use NotesReceivableFromSaleOfLandHeldForUse	7590000	USD
CY2018	aht	Notes Receivable From Sale Of Land Held For Use NotesReceivableFromSaleOfLandHeldForUse	0	USD
CY2020	aht	Other Assets From Sale Of Land Held For Use OtherAssetsFromSaleOfLandHeldForUse	0	USD
CY2019	aht	Other Assets From Sale Of Land Held For Use OtherAssetsFromSaleOfLandHeldForUse	4797000	USD
CY2020	aht	Issuance Of Units For Hotel Acquisitions IssuanceOfUnitsForHotelAcquisitions	0	USD
CY2019	aht	Issuance Of Units For Hotel Acquisitions IssuanceOfUnitsForHotelAcquisitions	7854000	USD
CY2018	aht	Issuance Of Units For Hotel Acquisitions IssuanceOfUnitsForHotelAcquisitions	0	USD
CY2020	us-gaap	Loans Assumed1 LoansAssumed1	0	USD
CY2019	us-gaap	Loans Assumed1 LoansAssumed1	24922000	USD
CY2018	us-gaap	Loans Assumed1 LoansAssumed1	0	USD
CY2020	aht	Liabilities Assumed By Buyer LiabilitiesAssumedByBuyer	108750000	USD
CY2019	aht	Liabilities Assumed By Buyer LiabilitiesAssumedByBuyer	0	USD
CY2018	aht	Liabilities Assumed By Buyer LiabilitiesAssumedByBuyer	0	USD
CY2020	aht	Non Cash Extinguishment Of Debt NonCashExtinguishmentOfDebt	179030000	USD
CY2019	aht	Non Cash Extinguishment Of Debt NonCashExtinguishmentOfDebt	0	USD
CY2018	aht	Non Cash Extinguishment Of Debt NonCashExtinguishmentOfDebt	0	USD
CY2020	aht	Non Cash Loan Principal Associated With Default Interest And Late Fees NonCashLoanPrincipalAssociatedWithDefaultInterestAndLateFees	47453000	USD
CY2019	aht	Non Cash Loan Principal Associated With Default Interest And Late Fees NonCashLoanPrincipalAssociatedWithDefaultInterestAndLateFees	0	USD
CY2018	aht	Non Cash Loan Principal Associated With Default Interest And Late Fees NonCashLoanPrincipalAssociatedWithDefaultInterestAndLateFees	0	USD
CY2020	aht	Non Cash Loan Proceeds Associated With Accrued Interest And Legal Fees NonCashLoanProceedsAssociatedWithAccruedInterestAndLegalFees	22456000	USD
CY2019	aht	Non Cash Loan Proceeds Associated With Accrued Interest And Legal Fees NonCashLoanProceedsAssociatedWithAccruedInterestAndLegalFees	0	USD
CY2018	aht	Non Cash Loan Proceeds Associated With Accrued Interest And Legal Fees NonCashLoanProceedsAssociatedWithAccruedInterestAndLegalFees	0	USD
CY2020	aht	Non Cash Extinguishment Of Preferred Stock NonCashExtinguishmentOfPreferredStock	179061000	USD
CY2019	aht	Non Cash Extinguishment Of Preferred Stock NonCashExtinguishmentOfPreferredStock	0	USD
CY2018	aht	Non Cash Extinguishment Of Preferred Stock NonCashExtinguishmentOfPreferredStock	0	USD
CY2020	us-gaap	Stock Issued1 StockIssued1	123584000	USD
CY2019	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2018	us-gaap	Stock Issued1 StockIssued1	0	USD
CY2020Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	868000	USD
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	20849000	USD
CY2018Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	26794000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	262636000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	319210000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	354805000	USD
CY2019Q4	us-gaap	Disposal Group Including Discontinued Operation Cash And Cash Equivalents DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents	0	USD
CY2018Q4	us-gaap	Disposal Group Including Discontinued Operation Cash And Cash Equivalents DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents	0	USD
CY2017Q4	us-gaap	Disposal Group Including Discontinued Operation Cash And Cash Equivalents DisposalGroupIncludingDiscontinuedOperationCashAndCashEquivalents	78000	USD
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	135571000	USD
CY2018Q4	us-gaap	Restricted Cash RestrictedCash	120602000	USD
CY2017Q4	us-gaap	Restricted Cash RestrictedCash	116787000	USD
CY2019Q4	aht	Restricted Cashand Restricted Cash Equivalents Disposal Group Including Discontinued Operations RestrictedCashandRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations	0	USD
CY2018Q4	aht	Restricted Cashand Restricted Cash Equivalents Disposal Group Including Discontinued Operations RestrictedCashandRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations	0	USD
CY2017Q4	aht	Restricted Cashand Restricted Cash Equivalents Disposal Group Including Discontinued Operations RestrictedCashandRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations	402000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	398207000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	439812000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	472072000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	92905000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	262636000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	319210000	USD
CY2020Q4	us-gaap	Restricted Cash RestrictedCash	74408000	USD
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	135571000	USD
CY2018Q4	us-gaap	Restricted Cash RestrictedCash	120602000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	167313000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	398207000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	439812000	USD
CY2020Q4	us-gaap	Number Of Units In Real Estate Property NumberOfUnitsInRealEstateProperty	22621	room
CY2020Q4	aht	Number Of Units In Real Estate Property Net Partnership Interest NumberOfUnitsInRealEstatePropertyNetPartnershipInterest	22594	room
CY2020Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	104800000	shares
CY2020Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	10500000	shares
CY2020Q3	aht	Share Based Compensation Arrangement By Share Based Payment Award Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOutstandingNumber	20500000	shares
CY2020Q3	aht	Share Based Compensation Arrangement By Share Based Payment Award Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOutstandingNumber	2100000	shares
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	92900000	USD
CY2020Q4	us-gaap	Restricted Cash RestrictedCash	74400000	USD
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;text-decoration:underline">Use of Estimates</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">—The preparation of these consolidated financial statements in accordance with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.</span>
CY2020	us-gaap	Receivable With Imputed Interest Effective Yield Interest Rate ReceivableWithImputedInterestEffectiveYieldInterestRate	0.070
CY2020	us-gaap	Receivable With Imputed Interest Effective Yield Interest Rate ReceivableWithImputedInterestEffectiveYieldInterestRate	0.070
CY2020Q4	aht	Other Assets Net Amount OtherAssetsNetAmount	4703000	USD
CY2019Q4	aht	Other Assets Net Amount OtherAssetsNetAmount	4751000	USD
CY2020	aht	Number Of Hotel Properties Stated At Historical Cost NumberOfHotelPropertiesStatedAtHistoricalCost	4	hotel
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	91700000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	33600000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	23400000	USD
CY2019	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	0	USD
CY2020	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	0	USD
CY2018	us-gaap	Equity Method Investment Other Than Temporary Impairment EquityMethodInvestmentOtherThanTemporaryImpairment	0	USD
CY2020Q4	aht	Unfavorable Management Contract Liabilities UnfavorableManagementContractLiabilities	23400000	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	4300000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	10400000	USD
CY2018	us-gaap	Advertising Expense AdvertisingExpense	8500000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	0	USD
CY2020Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	3711585000	USD
CY2020	aht	Number Of Hotels NumberOfHotels	117	hotel
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	508238000	USD
CY2019	aht	Number Of Hotels NumberOfHotels	121	hotel
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1502759000	USD
CY2018	aht	Number Of Hotels NumberOfHotels	122	hotel
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1430789000	USD
CY2020Q4	us-gaap	Land Land	630690000	USD
CY2019Q4	us-gaap	Land Land	769381000	USD
CY2020Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	3751588000	USD
CY2019Q4	us-gaap	Buildings And Improvements Gross BuildingsAndImprovementsGross	4129884000	USD
CY2020Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	388428000	USD
CY2019Q4	us-gaap	Furniture And Fixtures Gross FurnitureAndFixturesGross	503156000	USD
CY2020Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	16192000	USD
CY2019Q4	us-gaap	Construction In Progress Gross ConstructionInProgressGross	29745000	USD
CY2020Q4	us-gaap	Rental Properties RentalProperties	11707000	USD
CY2019Q4	us-gaap	Rental Properties RentalProperties	12093000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	4798605000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	5444259000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1371623000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1335816000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	3426982000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4108443000	USD
CY2020Q4	srt	Real Estate Federal Income Tax Basis RealEstateFederalIncomeTaxBasis	3000000000.0	USD
CY2019Q4	srt	Real Estate Federal Income Tax Basis RealEstateFederalIncomeTaxBasis	3500000000	USD
CY2020	us-gaap	Depreciation Depreciation	252400000	USD
CY2019	us-gaap	Depreciation Depreciation	268400000	USD
CY2018	us-gaap	Depreciation Depreciation	257900000	USD
CY2020	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	91700000	USD
CY2019	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	33600000	USD
CY2018	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	23400000	USD
CY2020Q1	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	27600000	USD
CY2020Q2	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	27600000	USD
CY2018	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	23400000	USD
CY2020Q4	aht	Debt Instrument Collateral Carrying Value DebtInstrumentCollateralCarryingValue	3409588000	USD
CY2019Q4	aht	Debt Instrument Collateral Carrying Value DebtInstrumentCollateralCarryingValue	4104830000	USD
CY2020Q4	aht	London Interbank Offered Rate Libor Rate LondonInterbankOfferedRateLIBORRate	0.00144
CY2019Q4	aht	London Interbank Offered Rate Libor Rate LondonInterbankOfferedRateLIBORRate	0.01763
CY2020Q3	aht	Interest Expense Debt Deferral Term Of Extension Options InterestExpenseDebtDeferralTermOfExtensionOptions	P1M
CY2020	us-gaap	Receivable With Imputed Interest Effective Yield Interest Rate ReceivableWithImputedInterestEffectiveYieldInterestRate	0.070
CY2020	us-gaap	Receivable With Imputed Interest Effective Yield Interest Rate ReceivableWithImputedInterestEffectiveYieldInterestRate	0.070
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	0	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	0	USD
CY2020	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	554000	USD
CY2019	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	119000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	0	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	0	USD
CY2020	us-gaap	Receivable With Imputed Interest Effective Yield Interest Rate ReceivableWithImputedInterestEffectiveYieldInterestRate	0.070
CY2020	us-gaap	Gains Losses On Restructuring Of Debt GainsLossesOnRestructuringOfDebt	0	USD
CY2020	aht	Non Cash Loan Principal Associated With Default Interest And Late Fees NonCashLoanPrincipalAssociatedWithDefaultInterestAndLateFees	47500000	USD
CY2020	aht	Non Cash Loan Principal Amount Amortized NonCashLoanPrincipalAmountAmortized	20000000.0	USD
CY2020	aht	Interest Expense And Amortization Of Premium And Loan Costs InterestExpenseAndAmortizationOfPremiumAndLoanCosts	154000	USD
CY2019	aht	Interest Expense And Amortization Of Premium And Loan Costs InterestExpenseAndAmortizationOfPremiumAndLoanCosts	232000	USD
CY2018	aht	Interest Expense And Amortization Of Premium And Loan Costs InterestExpenseAndAmortizationOfPremiumAndLoanCosts	277000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	2902783000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	544681000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	113996000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	65157000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	84968000	USD
CY2020Q4	aht	Fair Value Consideration Threshold For Transfer In Out Of Level3 FairValueConsiderationThresholdForTransferInOutOfLevel3	0.10
CY2020Q4	aht	London Interbank Offered Rate Libor Rate LondonInterbankOfferedRateLIBORRate	0.00144
CY2020Q4	aht	Libor Interest Rate Forward Curve Downtrend LIBORInterestRateForwardCurveDowntrend	0.00131
CY2020	aht	Derivative Expense Related To Credit Default Swaps DerivativeExpenseRelatedToCreditDefaultSwaps	811000	USD
CY2019	aht	Derivative Expense Related To Credit Default Swaps DerivativeExpenseRelatedToCreditDefaultSwaps	1077000	USD
CY2018	aht	Derivative Expense Related To Credit Default Swaps DerivativeExpenseRelatedToCreditDefaultSwaps	1045000	USD
CY2020Q4	us-gaap	Marketable Securities MarketableSecurities	0	USD
CY2020Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	0	USD
CY2019Q4	us-gaap	Marketable Securities MarketableSecurities	14591000	USD
CY2019Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	14591000	USD
CY2020Q4	us-gaap	Derivative Assets DerivativeAssets	263000	USD
CY2020Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	263000	USD
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	1691000	USD
CY2019Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	1691000	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	0	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	0	USD
CY2019Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	42000	USD
CY2019Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	42000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	92905000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	92905000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	262636000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	262636000	USD
CY2020Q4	us-gaap	Restricted Cash RestrictedCash	74408000	USD
CY2020Q4	aht	Restricted Cash Estimated Fair Value RestrictedCashEstimatedFairValue	74408000	USD
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	135571000	USD
CY2019Q4	aht	Restricted Cash Estimated Fair Value RestrictedCashEstimatedFairValue	135571000	USD
CY2020Q4	aht	Accounts Receivable Excluding Financing Receivable After Allowance For Credit Loss AccountsReceivableExcludingFinancingReceivableAfterAllowanceForCreditLoss	21760000	USD
CY2020Q4	us-gaap	Accounts Receivable Fair Value Disclosure AccountsReceivableFairValueDisclosure	21760000	USD
CY2019Q4	aht	Accounts Receivable Excluding Financing Receivable After Allowance For Credit Loss AccountsReceivableExcludingFinancingReceivableAfterAllowanceForCreditLoss	39638000	USD
CY2019Q4	us-gaap	Accounts Receivable Fair Value Disclosure AccountsReceivableFairValueDisclosure	39638000	USD
CY2020	aht	Maturity Period Of Cash And Cash Equivalents Maximum MaturityPeriodOfCashAndCashEquivalentsMaximum	P90D
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	8263000	USD
CY2019Q4	us-gaap	Notes Receivable Net NotesReceivableNet	7709000	USD
CY2020Q4	us-gaap	Due From Related Parties DueFromRelatedParties	5801000	USD
CY2020Q4	aht	Due From Related Parties Fair Value Disclosure DueFromRelatedPartiesFairValueDisclosure	5801000	USD
CY2019Q4	us-gaap	Due From Related Parties DueFromRelatedParties	3019000	USD
CY2019Q4	aht	Due From Related Parties Fair Value Disclosure DueFromRelatedPartiesFairValueDisclosure	3019000	USD
CY2020Q4	aht	Due From Third Party Hotel Managers DueFromThirdPartyHotelManagers	9383000	USD
CY2020Q4	aht	Due From Third Party Hotel Managers Fair Value Disclosure DueFromThirdPartyHotelManagersFairValueDisclosure	9383000	USD
CY2019Q4	aht	Due From Third Party Hotel Managers DueFromThirdPartyHotelManagers	17368000	USD
CY2019Q4	aht	Due From Third Party Hotel Managers Fair Value Disclosure DueFromThirdPartyHotelManagersFairValueDisclosure	17368000	USD
CY2020Q4	aht	Long Term Debt Including Deferred Loan Costs LongTermDebtIncludingDeferredLoanCosts	3711297000	USD
CY2019Q4	aht	Long Term Debt Including Deferred Loan Costs LongTermDebtIncludingDeferredLoanCosts	4124658000	USD
CY2020Q4	us-gaap	Accounts Payable And Other Accrued Liabilities AccountsPayableAndOtherAccruedLiabilities	99954000	USD
CY2020Q4	us-gaap	Accounts Payable And Other Accrued Liabilities AccountsPayableAndOtherAccruedLiabilities	99954000	USD
CY2019Q4	us-gaap	Accounts Payable And Other Accrued Liabilities AccountsPayableAndOtherAccruedLiabilities	124226000	USD
CY2019Q4	us-gaap	Accounts Payable And Other Accrued Liabilities AccountsPayableAndOtherAccruedLiabilities	124226000	USD
CY2020Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	98685000	USD
CY2020Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	98685000	USD
CY2019Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	10115000	USD
CY2019Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	10115000	USD
CY2020Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	868000	USD
CY2020Q4	aht	Dividends Payable Fair Value Disclosure DividendsPayableFairValueDisclosure	868000	USD
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	20849000	USD
CY2019Q4	aht	Dividends Payable Fair Value Disclosure DividendsPayableFairValueDisclosure	20849000	USD
CY2020Q4	us-gaap	Due To Affiliate Current And Noncurrent DueToAffiliateCurrentAndNoncurrent	13383000	USD
CY2020Q4	aht	Due To Affiliate Fair Value Disclosure DueToAffiliateFairValueDisclosure	13383000	USD
CY2019Q4	us-gaap	Due To Affiliate Current And Noncurrent DueToAffiliateCurrentAndNoncurrent	6570000	USD
CY2019Q4	aht	Due To Affiliate Fair Value Disclosure DueToAffiliateFairValueDisclosure	6570000	USD
CY2020Q4	aht	Due To Third Party Hotel Managers DueToThirdPartyHotelManagers	184000	USD
CY2020Q4	aht	Due To Third Party Hotel Managers Fair Value Disclosure DueToThirdPartyHotelManagersFairValueDisclosure	184000	USD
CY2019Q4	aht	Due To Third Party Hotel Managers DueToThirdPartyHotelManagers	2509000	USD
CY2019Q4	aht	Due To Third Party Hotel Managers Fair Value Disclosure DueToThirdPartyHotelManagersFairValueDisclosure	2509000	USD
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	8300000	USD
CY2019Q4	us-gaap	Notes Receivable Net NotesReceivableNet	7700000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-543876000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-113635000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-126966000	USD
CY2020	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	32117000	USD
CY2019	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	42577000	USD
CY2018	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	42577000	USD
CY2020	aht	Gain Loss On Extinguishment Of Preferred Stock GainLossOnExtinguishmentOfPreferredStock	55477000	USD
CY2019	aht	Gain Loss On Extinguishment Of Preferred Stock GainLossOnExtinguishmentOfPreferredStock	0	USD
CY2018	aht	Gain Loss On Extinguishment Of Preferred Stock GainLossOnExtinguishmentOfPreferredStock	0	USD
CY2020	aht	Undistributed Income Loss From Continuing Operations Allocated To Common Stockholders UndistributedIncomeLossFromContinuingOperationsAllocatedToCommonStockholders	-519910000	USD
CY2019	aht	Undistributed Income Loss From Continuing Operations Allocated To Common Stockholders UndistributedIncomeLossFromContinuingOperationsAllocatedToCommonStockholders	-187328000	USD
CY2018	aht	Undistributed Income Loss From Continuing Operations Allocated To Common Stockholders UndistributedIncomeLossFromContinuingOperationsAllocatedToCommonStockholders	-217494000	USD
CY2020	aht	Distributed And Undistributed Income Loss From Continuing Operations Basic And Diluted DistributedAndUndistributedIncomeLossFromContinuingOperationsBasicAndDiluted	-519910000	USD
CY2019	aht	Distributed And Undistributed Income Loss From Continuing Operations Basic And Diluted DistributedAndUndistributedIncomeLossFromContinuingOperationsBasicAndDiluted	-157488000	USD
CY2018	aht	Distributed And Undistributed Income Loss From Continuing Operations Basic And Diluted DistributedAndUndistributedIncomeLossFromContinuingOperationsBasicAndDiluted	-170437000	USD
CY2020	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	15756000	shares
CY2019	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	9984000	shares
CY2018	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	9728000	shares
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-33.00
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-15.77
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-17.52
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-33.00
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-15.77
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-17.52
CY2020	aht	Gain Loss Attributable To Redeemable Noncontrolling Interests In Operating Partnership GainLossAttributableToRedeemableNoncontrollingInterestsInOperatingPartnership	-89008000	USD
CY2019	aht	Gain Loss Attributable To Redeemable Noncontrolling Interests In Operating Partnership GainLossAttributableToRedeemableNoncontrollingInterestsInOperatingPartnership	-28932000	USD
CY2018	aht	Gain Loss Attributable To Redeemable Noncontrolling Interests In Operating Partnership GainLossAttributableToRedeemableNoncontrollingInterestsInOperatingPartnership	-29313000	USD
CY2020	aht	Net Income Loss Attributable To Antidilutive Securities NetIncomeLossAttributableToAntidilutiveSecurities	-89008000	USD
CY2019	aht	Net Income Loss Attributable To Antidilutive Securities NetIncomeLossAttributableToAntidilutiveSecurities	-27656000	USD
CY2018	aht	Net Income Loss Attributable To Antidilutive Securities NetIncomeLossAttributableToAntidilutiveSecurities	-28419000	USD
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1906000	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1922000	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1796000	shares
CY2020	aht	Common Unit Limited Partnership Interest Redemption For Common Stock Shares CommonUnitLimitedPartnershipInterestRedemptionForCommonStockShares	1	shares
CY2020Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	22951000	USD
CY2019Q4	us-gaap	Redeemable Noncontrolling Interest Equity Carrying Amount RedeemableNoncontrollingInterestEquityCarryingAmount	69870000	USD
CY2020	aht	Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	-89008000	USD
CY2019	aht	Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	-28932000	USD
CY2018	aht	Comprehensive Income Loss Net Of Tax Portion Attributable To Redeemable Noncontrolling Interest ComprehensiveIncomeLossNetOfTaxPortionAttributableToRedeemableNoncontrollingInterest	-29313000	USD
CY2020	aht	Cash Distributions Declared CashDistributionsDeclared	0	USD
CY2019	aht	Cash Distributions Declared CashDistributionsDeclared	6572000	USD
CY2018	aht	Cash Distributions Declared CashDistributionsDeclared	8789000	USD
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	200000000	USD
CY2019	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
CY2018	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
CY2020	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	0	shares
CY2020	aht	Additional Acquisition Of Common Stock AdditionalAcquisitionOfCommonStock	30558	shares
CY2019	aht	Additional Acquisition Of Common Stock AdditionalAcquisitionOfCommonStock	21070	shares
CY2018	aht	Additional Acquisition Of Common Stock AdditionalAcquisitionOfCommonStock	24856	shares
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	0	USD
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	31116000	USD
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	47951000	USD
CY2020	us-gaap	Dividends Preferred Stock DividendsPreferredStock	10644000	USD
CY2019	us-gaap	Dividends Preferred Stock DividendsPreferredStock	73693000	USD
CY2018	us-gaap	Dividends Preferred Stock DividendsPreferredStock	90528000	USD
CY2020	us-gaap	Preferred Stock Amount Of Preferred Dividends In Arrears PreferredStockAmountOfPreferredDividendsInArrears	21473000	USD
CY2020Q4	us-gaap	Minority Interest MinorityInterest	166000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	504000	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-338000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-112000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-30000	USD
CY2019Q3	aht	Contribution Agreement Preferred Equity Offering ContributionAgreementPreferredEquityOffering	400000000	USD
CY2020	aht	Contribution Agreement Preferred Equity Offering ContributionAgreementPreferredEquityOffering	400000000	USD
CY2018Q3	aht	Maximum Percentage Of Project Budget To Be Paid As Market Service Fees MaximumPercentageOfProjectBudgetToBePaidAsMarketServiceFees	0.165
CY2020	aht	Number Of Ground Leases Under Operating Leases NumberOfGroundLeasesUnderOperatingLeases	3	lease
CY2020Q4	us-gaap	Number Of Properties Subject To Ground Leases NumberOfPropertiesSubjectToGroundLeases	2	lease
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	4000000.0	USD
CY2018	us-gaap	Operating Leases Rent Expense Contingent Rentals OperatingLeasesRentExpenseContingentRentals	837000	USD
CY2020Q4	aht	Capital Commitment Related To General Capital Improvement CapitalCommitmentRelatedToGeneralCapitalImprovement	29400000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	45008000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	49995000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	45309000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	53270000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	4453000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	4323000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	495000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	501000	USD
CY2020	aht	Amortization Costsof Intangible Assetsand Liabilities AmortizationCostsofIntangibleAssetsandLiabilities	227000	USD
CY2019	aht	Amortization Costsof Intangible Assetsand Liabilities AmortizationCostsofIntangibleAssetsandLiabilities	176000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	3028000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	3511000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P69Y
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P73Y
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0514
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0517
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	2974000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	2852000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2834000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2833000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	2833000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	172683000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	187009000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	141700000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	45309000	USD
CY2020	aht	Minimum Percentage Net Income Loss Distributed To Qualify As Real Estate Investment Trust MinimumPercentageNetIncomeLossDistributedToQualifyAsRealEstateInvestmentTrust	0.90
CY2020	aht	Subsequent Taxable Years Disqualified As Real Estate Investment Trust Duration Description SubsequentTaxableYearsDisqualifiedAsRealEstateInvestmentTrustDurationDescription	P4Y
CY2020	aht	Income Loss From Continuing Operations Before Income Taxes Attributable To Taxable Real Estate Investment Trust Subsidiaries IncomeLossFromContinuingOperationsBeforeIncomeTaxesAttributableToTaxableRealEstateInvestmentTrustSubsidiaries	-142000000.0	USD
CY2019	aht	Income Loss From Continuing Operations Before Income Taxes Attributable To Taxable Real Estate Investment Trust Subsidiaries IncomeLossFromContinuingOperationsBeforeIncomeTaxesAttributableToTaxableRealEstateInvestmentTrustSubsidiaries	7300000	USD
CY2018	aht	Income Loss From Continuing Operations Before Income Taxes Attributable To Taxable Real Estate Investment Trust Subsidiaries IncomeLossFromContinuingOperationsBeforeIncomeTaxesAttributableToTaxableRealEstateInvestmentTrustSubsidiaries	21100000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-29811000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1539000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	4435000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-4014000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	475000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	698000	USD
CY2020	aht	Income Tax Reconciliation Permanent Differences IncomeTaxReconciliationPermanentDifferences	-415000	USD
CY2019	aht	Income Tax Reconciliation Permanent Differences IncomeTaxReconciliationPermanentDifferences	310000	USD
CY2018	aht	Income Tax Reconciliation Permanent Differences IncomeTaxReconciliationPermanentDifferences	128000	USD
CY2020	aht	Effective Income Tax Rate Reconciliation Provisionto Return Adjustment Entirely Offsetby Changein Valuation Allowance Amount EffectiveIncomeTaxRateReconciliationProvisiontoReturnAdjustmentEntirelyOffsetbyChangeinValuationAllowanceAmount	228000	USD
CY2019	aht	Effective Income Tax Rate Reconciliation Provisionto Return Adjustment Entirely Offsetby Changein Valuation Allowance Amount EffectiveIncomeTaxRateReconciliationProvisiontoReturnAdjustmentEntirelyOffsetbyChangeinValuationAllowanceAmount	325000	USD
CY2018	aht	Effective Income Tax Rate Reconciliation Provisionto Return Adjustment Entirely Offsetby Changein Valuation Allowance Amount EffectiveIncomeTaxRateReconciliationProvisiontoReturnAdjustmentEntirelyOffsetbyChangeinValuationAllowanceAmount	230000	USD
CY2020	aht	Income Tax Reconciliation Gross Receipts And Margin Taxes IncomeTaxReconciliationGrossReceiptsAndMarginTaxes	347000	USD
CY2019	aht	Income Tax Reconciliation Gross Receipts And Margin Taxes IncomeTaxReconciliationGrossReceiptsAndMarginTaxes	923000	USD
CY2018	aht	Income Tax Reconciliation Gross Receipts And Margin Taxes IncomeTaxReconciliationGrossReceiptsAndMarginTaxes	950000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	13000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-32000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	11000	USD
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	32317000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-2322000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-3670000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1335000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1218000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2782000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-826000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	48000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	1195000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	549000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1329000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1452000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-277000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1377000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2647000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-927000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-126000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	39000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-131000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-33000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	96000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1058000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-159000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	135000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1335000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1218000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2782000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	11000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	56000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	11000	USD
CY2019	aht	Unrecognized Tax Benefits Interest Income On Income Taxes Expense UnrecognizedTaxBenefitsInterestIncomeOnIncomeTaxesExpense	19000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	89000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	150000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	1364000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	2525000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	30687000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	2458000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	7372000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	5436000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1263000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1723000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	121000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	4823000	USD
CY2020Q4	aht	Tax Property Basis Less Than Book Basis TaxPropertyBasisLessThanBookBasis	2600000	USD
CY2019Q4	aht	Tax Property Basis Less Than Book Basis TaxPropertyBasisLessThanBookBasis	3355000	USD
CY2020Q4	aht	Tax Derivatives Basis Less Than Book Basis TaxDerivativesBasisLessThanBookBasis	296000	USD
CY2019Q4	aht	Tax Derivatives Basis Less Than Book Basis TaxDerivativesBasisLessThanBookBasis	2281000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1307000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	194000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	39657000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	6589000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	40029000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	7712000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	372000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1123000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	617200000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration	426100000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	40000000.0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	7700000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	7712000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	10034000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	6232000	USD
CY2020	aht	Valuation Allowance Additions Charged To Other ValuationAllowanceAdditionsChargedToOther	32317000	USD
CY2019	aht	Valuation Allowance Additions Charged To Other ValuationAllowanceAdditionsChargedToOther	0	USD
CY2018	aht	Valuation Allowance Additions Charged To Other ValuationAllowanceAdditionsChargedToOther	4766000	USD
CY2020	aht	Valuation Allowance Deductions ValuationAllowanceDeductions	0	USD
CY2019	aht	Valuation Allowance Deductions ValuationAllowanceDeductions	2322000	USD
CY2018	aht	Valuation Allowance Deductions ValuationAllowanceDeductions	964000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	40029000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	7712000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	10034000	USD
CY2020	aht	Income Tax Expense Benefit Operating Loss Carryback Cares Act IncomeTaxExpenseBenefitOperatingLossCarrybackCARESAct	-858000	USD
CY2020Q4	us-gaap	Other Deferred Costs Gross OtherDeferredCostsGross	3472000	USD
CY2019Q4	us-gaap	Other Deferred Costs Gross OtherDeferredCostsGross	4811000	USD
CY2020Q4	aht	Deferred Costs Accumulated Amortization DeferredCostsAccumulatedAmortization	1621000	USD
CY2019Q4	aht	Deferred Costs Accumulated Amortization DeferredCostsAccumulatedAmortization	1914000	USD
CY2020Q4	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	1851000	USD
CY2019Q4	us-gaap	Deferred Costs Current And Noncurrent DeferredCostsCurrentAndNoncurrent	2897000	USD
CY2020Q4	us-gaap	Below Market Lease Gross BelowMarketLeaseGross	797000	USD
CY2019Q4	us-gaap	Below Market Lease Gross BelowMarketLeaseGross	797000	USD
CY2020Q4	aht	Above Market Lease Gross AboveMarketLeaseGross	2723000	USD
CY2019Q4	aht	Above Market Lease Gross AboveMarketLeaseGross	2723000	USD
CY2020Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	0	USD
CY2019Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	0	USD
CY2020Q4	aht	Above Market Lease Accumulated Amortization AboveMarketLeaseAccumulatedAmortization	466000	USD
CY2019Q4	aht	Above Market Lease Accumulated Amortization AboveMarketLeaseAccumulatedAmortization	386000	USD
CY2020Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	797000	USD
CY2019Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	797000	USD
CY2020Q4	aht	Above Market Lease Net AboveMarketLeaseNet	2257000	USD
CY2019Q4	aht	Above Market Lease Net AboveMarketLeaseNet	2337000	USD
CY2020	us-gaap	Lease Income LeaseIncome	80000	USD
CY2019	us-gaap	Lease Income LeaseIncome	81000	USD
CY2018	us-gaap	Lease Income LeaseIncome	82000	USD
CY2018	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-155000	USD
CY2020Q4	us-gaap	Costs And Expenses CostsAndExpenses	189991000	USD
CY2020	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2020Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	281877000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	43065000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	93043000	USD
CY2020Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	90253000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	508238000	USD
CY2020Q1	us-gaap	Costs And Expenses CostsAndExpenses	334936000	USD
CY2020Q2	us-gaap	Costs And Expenses CostsAndExpenses	194800000	USD
CY2020Q3	us-gaap	Costs And Expenses CostsAndExpenses	217198000	USD
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	936925000	USD
CY2020Q1	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	3623000	USD
CY2020Q2	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	-6000	USD
CY2020Q3	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	-40370000	USD
CY2020Q4	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	73000	USD
CY2020	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	-36680000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-49436000	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	-151741000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-164525000	USD
CY2020Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	-99665000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	-465367000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-101920000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-242086000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-151626000	USD
CY2020Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-137590000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-633222000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-84201000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-204616000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-129281000	USD
CY2020Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-125778000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-543876000	USD
CY2020Q1	aht	Income Loss From Continuing Operations Attributableto Common Stockholders IncomeLossFromContinuingOperationsAttributabletoCommonStockholders	-94845000	USD
CY2020Q2	aht	Income Loss From Continuing Operations Attributableto Common Stockholders IncomeLossFromContinuingOperationsAttributabletoCommonStockholders	-215260000	USD
CY2020Q3	aht	Income Loss From Continuing Operations Attributableto Common Stockholders IncomeLossFromContinuingOperationsAttributabletoCommonStockholders	-139925000	USD
CY2020Q4	aht	Income Loss From Continuing Operations Attributableto Common Stockholders IncomeLossFromContinuingOperationsAttributabletoCommonStockholders	-70486000	USD
CY2020	aht	Income Loss From Continuing Operations Attributableto Common Stockholders IncomeLossFromContinuingOperationsAttributabletoCommonStockholders	-520516000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-9.40
CY2020Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-20.85
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-11.89
CY2020Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-2.29
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-33.00
CY2020Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	10047000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	10312000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	11767000	shares
CY2020Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	30751000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15756000	shares
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	358718000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	415148000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	374237000	USD
CY2019Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	354656000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1502759000	USD
CY2019Q1	us-gaap	Costs And Expenses CostsAndExpenses	334966000	USD
CY2019Q2	us-gaap	Costs And Expenses CostsAndExpenses	366699000	USD
CY2019Q3	us-gaap	Costs And Expenses CostsAndExpenses	347161000	USD
CY2019Q4	us-gaap	Costs And Expenses CostsAndExpenses	365330000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	1414156000	USD
CY2019Q1	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	233000	USD
CY2019Q2	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	328000	USD
CY2019Q3	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	2362000	USD
CY2019Q4	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	23203000	USD
CY2019	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	26126000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	23985000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	48777000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	29438000	USD
CY2019Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	12529000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	114729000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-46622000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-21352000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-39086000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-35619000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-142679000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-38017000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-16282000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-31177000	USD
CY2019Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-28159000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-113635000	USD
CY2019Q1	aht	Income Loss From Continuing Operations Attributableto Common Stockholders IncomeLossFromContinuingOperationsAttributabletoCommonStockholders	-48661000	USD
CY2019Q2	aht	Income Loss From Continuing Operations Attributableto Common Stockholders IncomeLossFromContinuingOperationsAttributabletoCommonStockholders	-26926000	USD
CY2019Q3	aht	Income Loss From Continuing Operations Attributableto Common Stockholders IncomeLossFromContinuingOperationsAttributabletoCommonStockholders	-41822000	USD
CY2019Q4	aht	Income Loss From Continuing Operations Attributableto Common Stockholders IncomeLossFromContinuingOperationsAttributabletoCommonStockholders	-38803000	USD
CY2019	aht	Income Loss From Continuing Operations Attributableto Common Stockholders IncomeLossFromContinuingOperationsAttributabletoCommonStockholders	-156212000	USD
CY2019Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-4.94
CY2019Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-2.73
CY2019Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-4.21
CY2019Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-3.90
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-15.77
CY2019Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9941000	shares
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9994000	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9997000	shares
CY2019Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9997000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9984000	shares
CY2020Q4	srt	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	3711585000	USD
CY2020Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	642258000	USD
CY2020Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	3359676000	USD
CY2020Q4	aht	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Land RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionLand	-10175000	USD
CY2020Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements	806846000	USD
CY2020Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	632083000	USD
CY2020Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	4166522000	USD
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	4798605000	USD
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1371623000	USD
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	5444259000	USD
CY2018Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	5287463000	USD
CY2017Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	5064294000	USD
CY2020	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	35712000	USD
CY2019	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	409603000	USD
	us-gaap	Real Estate Other Additions RealEstateOtherAdditions	374223000	USD
CY2020	us-gaap	Sec Schedule Iii Real Estate Writedown Or Reserve Amount SECScheduleIIIRealEstateWritedownOrReserveAmount	254475000	USD
CY2019	us-gaap	Sec Schedule Iii Real Estate Writedown Or Reserve Amount SECScheduleIIIRealEstateWritedownOrReserveAmount	136658000	USD
	us-gaap	Sec Schedule Iii Real Estate Writedown Or Reserve Amount SECScheduleIIIRealEstateWritedownOrReserveAmount	125964000	USD
CY2020	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	426891000	USD
CY2019	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	116149000	USD
	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	25090000	USD
CY2020Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	4798605000	USD
CY2019Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	5444259000	USD
CY2018Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	5287463000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1335816000	USD
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1182244000	USD
CY2017Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1028379000	USD
CY2020	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	252873000	USD
CY2019	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	269664000	USD
	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	258441000	USD
CY2020	aht	Sec Schedule Iii Real Estate Accumulated Depreciation Impairment Write Offs SECScheduleIIIRealEstateAccumulatedDepreciationImpairmentWriteOffs	162754000	USD
CY2019	aht	Sec Schedule Iii Real Estate Accumulated Depreciation Impairment Write Offs SECScheduleIIIRealEstateAccumulatedDepreciationImpairmentWriteOffs	103038000	USD
	aht	Sec Schedule Iii Real Estate Accumulated Depreciation Impairment Write Offs SECScheduleIIIRealEstateAccumulatedDepreciationImpairmentWriteOffs	102410000	USD
CY2020	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	54312000	USD
CY2019	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	13054000	USD
	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	2166000	USD
CY2020Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1371623000	USD
CY2019Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1335816000	USD
CY2018Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	1182244000	USD
CY2020	aht	Investment In Real Estate Net InvestmentInRealEstateNet	3426982000	USD
CY2019	aht	Investment In Real Estate Net InvestmentInRealEstateNet	4108443000	USD
	aht	Investment In Real Estate Net InvestmentInRealEstateNet	4105219000	USD

Files In Submission

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2020 Q4 Form 10-K Financial Statement

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$AHT ASHFORD HOSPITALITY TRUST INC Stock $aht

2020 Q4 Form 10-K Financial Statement

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Files In Submission

$AHT
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