$DHC
Diversified Healthcare Trust Stock $dhc

$dhc Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000107541522000007 Filed on February 24, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$336.7M	$1.383B	$384.9M
YoY Change	-12.51%	-15.25%	50.33%
Cost Of Revenue	$273.7M	$1.092B	$302.2M
YoY Change	-9.43%	-11.69%	138.7%
Gross Profit	$63.02M	$291.4M	$82.70M
YoY Change	-23.8%	-26.36%	-36.14%
Gross Profit Margin	18.71%	21.07%	21.49%
Selling, General & Admin	$8.549M	$34.09M	$7.500M
YoY Change	13.99%	11.4%	-13.79%
% of Gross Profit	13.57%	11.7%	9.07%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$68.39M	$271.1M	$65.60M
YoY Change	4.25%	0.36%	-5.61%
% of Gross Profit	108.53%	93.04%	79.32%
Operating Expenses	$76.94M	$305.2M	$73.10M
YoY Change	5.25%	1.5%	-6.52%
Operating Profit	-$13.92M	-$13.82M	$9.600M
YoY Change	-245.02%	-114.55%	-81.29%
Interest Expense	-$78.02M	$255.8M	-$28.00M
YoY Change	178.65%	26.94%	-35.33%
% of Operating Profit			-291.67%
Other Income/Expense, Net
YoY Change
Pretax Income	$367.2M	$181.4M	-$14.70M
YoY Change	-2597.71%	-236.3%	-70.54%
Income Tax	$406.0K	$1.430M	$200.0K
% Of Pretax Income	0.11%	0.79%
Net Earnings	$365.6M	$174.5M	-$16.20M
YoY Change	-2356.7%	-225.14%	-68.66%
Net Earnings / Revenue	108.57%	12.62%	-4.21%
Basic Earnings Per Share		$0.73
Diluted Earnings Per Share	$1.535M	$0.73	-$68.12K
COMMON SHARES
Basic Shares Outstanding	239.0M shares	238.0M shares	238.3M shares
Diluted Shares Outstanding		238.0M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$634.8M	$634.8M	$74.40M
YoY Change	753.29%	753.29%	98.93%
Cash & Equivalents	$634.8M	$634.8M	$74.42M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables			$0.00
Other Receivables			$0.00
Total Short-Term Assets	$634.8M	$634.8M	$74.40M
YoY Change	753.29%	753.29%	88.83%
LONG-TERM ASSETS
Property, Plant & Equipment	$5.080B	$5.080B	$5.720B
YoY Change	-11.19%	-11.19%	-2.97%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$31.54M	$246.7M	$73.77M
YoY Change	-57.25%	234.24%	4595.86%
Other Assets	$382.1M	$382.1M	$128.9M
YoY Change	196.43%	196.43%	-42.56%
Total Long-Term Assets	$5.989B	$5.989B	$6.402B
YoY Change	-6.46%	-6.46%	-3.21%
TOTAL ASSETS
Total Short-Term Assets	$634.8M	$634.8M	$74.40M
Total Long-Term Assets	$5.989B	$5.989B	$6.402B
Total Assets	$6.624B	$6.624B	$6.476B
YoY Change	2.27%	2.27%	-2.67%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$8.270M	$8.270M	$24.50M
YoY Change	-66.24%	-66.24%	178.41%
Accrued Expenses	$34.20M	$34.20M	$28.20M
YoY Change	21.27%	21.27%	-1.4%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$42.47M	$42.47M	$52.70M
YoY Change	-19.42%	-19.42%	40.91%
LONG-TERM LIABILITIES
Long-Term Debt	$3.677B	$3.677B	$3.499B
YoY Change	5.08%	5.08%	-0.08%
Other Long-Term Liabilities	$242.1M	$242.1M	$305.7M
YoY Change	-20.79%	-20.79%	28.55%
Total Long-Term Liabilities	$3.919B	$3.919B	$3.805B
YoY Change	3.0%	3.0%	1.74%
TOTAL LIABILITIES
Total Short-Term Liabilities	$42.47M	$42.47M	$52.70M
Total Long-Term Liabilities	$3.919B	$3.919B	$3.805B
Total Liabilities	$3.961B	$3.961B	$3.857B
YoY Change	2.69%	-0.49%	2.13%
SHAREHOLDERS EQUITY
Retained Earnings	$2.088B		$1.913B
YoY Change	9.12%		-6.79%
Common Stock	$4.618B		$4.616B
YoY Change	0.03%		0.03%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.662B	$2.662B	$2.496B
YoY Change
Total Liabilities & Shareholders Equity	$6.624B	$6.624B	$6.476B
YoY Change	2.27%	2.27%	-2.67%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$365.6M	$174.5M	-$16.20M
YoY Change	-2356.7%	-225.14%	-68.66%
Depreciation, Depletion And Amortization	$68.39M	$271.1M	$65.60M
YoY Change	4.25%	0.36%	-5.61%
Cash From Operating Activities	-$50.13M	-$63.32M	-$500.0K
YoY Change	9925.0%	-139.94%	-100.71%
INVESTING ACTIVITIES
Capital Expenditures	-$101.5M	-$227.6M	-$67.40M
YoY Change	50.54%	21.0%	-31.22%
Acquisitions
YoY Change
Other Investing Activities	$367.0M	$470.3M	$69.20M
YoY Change	430.41%	218.42%	-67.09%
Cash From Investing Activities	$265.6M	$242.7M	$1.700M
YoY Change	15522.41%	-700.2%	-98.49%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$383.0K
YoY Change		123.98%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-9.948M	$746.7M	-8.800M
YoY Change	13.05%	-1039.48%	-95.46%
NET CHANGE
Cash From Operating Activities	-50.13M	-$63.32M	-500.0K
Cash From Investing Activities	265.6M	$242.7M	1.700M
Cash From Financing Activities	-9.948M	$746.7M	-8.800M
Net Change In Cash	205.5M	$926.1M	-7.600M
YoY Change	-2804.05%	2297.66%	-32.74%
FREE CASH FLOW
Cash From Operating Activities	-$50.13M	-$63.32M	-$500.0K
Capital Expenditures	-$101.5M	-$227.6M	-$67.40M
Free Cash Flow	$51.34M	$164.3M	$66.90M
YoY Change	-23.26%	-52.61%	-60.2%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0001075415
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
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CY2021Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherAssets
CY2021Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilities
CY2020Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherLiabilities
CY2021Q4	us-gaap	Finance Lease Liability Statement Of Financial Position Extensible List FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://dhcreit.com/20211231#SecuredDebtAndFinanceLeaseObligations
CY2020Q4	us-gaap	Finance Lease Liability Statement Of Financial Position Extensible List FinanceLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://dhcreit.com/20211231#SecuredDebtAndFinanceLeaseObligations
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	1-15319
CY2021	dei	Entity Registrant Name EntityRegistrantName	DIVERSIFIED HEALTHCARE TRUST
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	04-3445278
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	Two Newton Place, 255 Washington Street, Suite 300
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Newton
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	MA
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	02458-1634
CY2021	dei	City Area Code CityAreaCode	617
CY2021	dei	Local Phone Number LocalPhoneNumber	796-8350
CY2021	dei	Security12b Title Security12bTitle	Common Shares of Beneficial Interest
CY2021	dei	Trading Symbol TradingSymbol	DHC
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
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CY2021	dei	Auditor Firm AuditorFirmId	34
CY2019	dei	Auditor Firm AuditorFirmId	42
CY2021	dei	Auditor Name AuditorName	Deloitte & Touche LLP
CY2021	dei	Auditor Location AuditorLocation	Boston, Massachusetts
CY2019	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2019	dei	Auditor Location AuditorLocation	Boston, Massachusetts
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CY2020	us-gaap	Net Income Loss NetIncomeLoss	-139453000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-88234000	USD
CY2021	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	0	USD
CY2020	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	0	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-175000	USD
CY2021	us-gaap	Other Comprehensive Income Other Net Of Tax OtherComprehensiveIncomeOtherNetOfTax	0	USD
CY2020	us-gaap	Other Comprehensive Income Other Net Of Tax OtherComprehensiveIncomeOtherNetOfTax	0	USD
CY2019	us-gaap	Other Comprehensive Income Other Net Of Tax OtherComprehensiveIncomeOtherNetOfTax	91000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	0	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	266000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	179926000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-134307000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-82612000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5411000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5146000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5356000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	174515000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-139453000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-87968000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	237967000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	237739000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	237604000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	237967000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	237739000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	237604000	shares
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.73
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.59
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.59
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.37
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.37
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3179870000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-82878000	USD
CY2019	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-175000	USD
CY2019	us-gaap	Other Comprehensive Income Other Net Of Tax OtherComprehensiveIncomeOtherNetOfTax	91000	USD
CY2019	us-gaap	Dividends Common Stock DividendsCommonStock	199719000	USD
CY2019	us-gaap	Stock Granted During Period Value Sharebased Compensation Gross StockGrantedDuringPeriodValueSharebasedCompensationGross	1393000	USD
CY2019	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	293000	USD
CY2019	dhc	Shares Granted Value Share Based Payment Arrangement Adjustments To Forfeiture SharesGrantedValueShareBasedPaymentArrangementAdjustmentsToForfeiture	-6000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	21583000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2877050000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-134307000	USD
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	42825000	USD
CY2020	us-gaap	Stock Granted During Period Value Sharebased Compensation Gross StockGrantedDuringPeriodValueSharebasedCompensationGross	1574000	USD
CY2020	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	171000	USD
CY2020	dhc	Shares Granted Value Share Based Payment Arrangement Adjustments To Forfeiture SharesGrantedValueShareBasedPaymentArrangementAdjustmentsToForfeiture	-6000	USD
CY2020	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	22292000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2619222000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	179926000	USD
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	9540000	USD
CY2021	us-gaap	Stock Granted During Period Value Sharebased Compensation Gross StockGrantedDuringPeriodValueSharebasedCompensationGross	1964000	USD
CY2021	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	383000	USD
CY2021	dhc	Shares Granted Value Share Based Payment Arrangement Adjustments To Forfeiture SharesGrantedValueShareBasedPaymentArrangementAdjustmentsToForfeiture	-3000	USD
CY2021	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	22348000	USD
CY2021	us-gaap	Noncontrolling Interest Increase From Sale Of Parent Equity Interest NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest	106448000	USD
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2662390000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	179926000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-134307000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-82878000	USD
CY2021	us-gaap	Depreciation Depreciation	271131000	USD
CY2020	us-gaap	Depreciation Depreciation	270147000	USD
CY2019	us-gaap	Depreciation Depreciation	289025000	USD
CY2021	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	13408000	USD
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	8022000	USD
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	6032000	USD
CY2021	us-gaap	Straight Line Rent StraightLineRent	5846000	USD
CY2020	us-gaap	Straight Line Rent StraightLineRent	6069000	USD
CY2019	us-gaap	Straight Line Rent StraightLineRent	4508000	USD
CY2021	dhc	Amortization Of Acquired Real Estate Leases And Other Intangible Assets AmortizationOfAcquiredRealEstateLeasesAndOtherIntangibleAssets	7211000	USD
CY2020	dhc	Amortization Of Acquired Real Estate Leases And Other Intangible Assets AmortizationOfAcquiredRealEstateLeasesAndOtherIntangibleAssets	7405000	USD
CY2019	dhc	Amortization Of Acquired Real Estate Leases And Other Intangible Assets AmortizationOfAcquiredRealEstateLeasesAndOtherIntangibleAssets	6791000	USD
CY2021	dhc	Gain Loss On Early Extinguishment Of Debt GainLossOnEarlyExtinguishmentOfDebt	-2410000	USD
CY2020	dhc	Gain Loss On Early Extinguishment Of Debt GainLossOnEarlyExtinguishmentOfDebt	-51000	USD
CY2019	dhc	Gain Loss On Early Extinguishment Of Debt GainLossOnEarlyExtinguishmentOfDebt	-44000	USD
CY2021	us-gaap	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	0	USD
CY2020	us-gaap	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	22896000	USD
CY2019	us-gaap	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	0	USD
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	-174000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	106972000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	115201000	USD
CY2021	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	492272000	USD
CY2020	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	6487000	USD
CY2019	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	39696000	USD
CY2021	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-42232000	USD
CY2020	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	34106000	USD
CY2019	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-41898000	USD
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	1811000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	51201000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	2203000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	3771000	USD
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	400000	USD
CY2021	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	0	USD
CY2020	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	0	USD
CY2019	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	2574000	USD
CY2021	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	20701000	USD
CY2020	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	7672000	USD
CY2019	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	8625000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	27858000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-12267000	USD
CY2021	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	7654000	USD
CY2020	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-305000	USD
CY2019	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-2105000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-868000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	22660000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-52422000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-63323000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	158544000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	265845000	USD
CY2021	us-gaap	Payments For Deposits On Real Estate Acquisitions PaymentsForDepositsOnRealEstateAcquisitions	0	USD
CY2020	us-gaap	Payments For Deposits On Real Estate Acquisitions PaymentsForDepositsOnRealEstateAcquisitions	2526000	USD
CY2019	us-gaap	Payments For Deposits On Real Estate Acquisitions PaymentsForDepositsOnRealEstateAcquisitions	50636000	USD
CY2021	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	227605000	USD
CY2020	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	185585000	USD
CY2019	us-gaap	Payments For Capital Improvements PaymentsForCapitalImprovements	222417000	USD
CY2021	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	103257000	USD
CY2020	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	147388000	USD
CY2019	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	254241000	USD
CY2021	us-gaap	Proceeds From Divestiture Of Interest In Joint Venture ProceedsFromDivestitureOfInterestInJointVenture	367033000	USD
CY2020	us-gaap	Proceeds From Divestiture Of Interest In Joint Venture ProceedsFromDivestitureOfInterestInJointVenture	0	USD
CY2019	us-gaap	Proceeds From Divestiture Of Interest In Joint Venture ProceedsFromDivestitureOfInterestInJointVenture	0	USD
CY2021	us-gaap	Proceeds From Sale Of Longterm Investments ProceedsFromSaleOfLongtermInvestments	0	USD
CY2020	us-gaap	Proceeds From Sale Of Longterm Investments ProceedsFromSaleOfLongtermInvestments	0	USD
CY2019	us-gaap	Proceeds From Sale Of Longterm Investments ProceedsFromSaleOfLongtermInvestments	98557000	USD
CY2021	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	11000	USD
CY2020	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	287000	USD
CY2019	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	6426000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	242696000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-40436000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	86171000	USD
CY2021	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	492500000	USD
CY2020	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	985000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Unsecured Debt ProceedsFromIssuanceOfUnsecuredDebt	0	USD
CY2021	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	800000000	USD
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	430500000	USD
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	994500000	USD
CY2021	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2020	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	968000000	USD
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	596000000	USD
CY2021	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	300000000	USD
CY2020	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	200000000	USD
CY2019	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	400000000	USD
CY2021	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	200000000	USD
CY2020	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	250000000	USD
CY2019	us-gaap	Repayments Of Unsecured Debt RepaymentsOfUnsecuredDebt	100000000	USD
CY2021	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	3159000	USD
CY2020	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	5941000	USD
CY2019	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	46345000	USD
CY2021	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2020	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	376000	USD
CY2019	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2021	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	10347000	USD
CY2020	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	5378000	USD
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	417000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	383000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	171000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	299000	USD
CY2021	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	22348000	USD
CY2020	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	22292000	USD
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	21583000	USD
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	9540000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	42825000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1016945000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	90849000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	199719000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	746723000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-79483000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-369863000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	926096000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	38625000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-17847000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	90849000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	52224000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	70071000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	52224000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	235994000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	195599000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	177308000	USD
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	2798000	USD
CY2020	us-gaap	Income Taxes Paid IncomeTaxesPaid	399000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	452000	USD
CY2021	dhc	Deconsolidation Of Previously Consolidated Investments Real Estate DeconsolidationOfPreviouslyConsolidatedInvestmentsRealEstate	686320000	USD
CY2020	dhc	Deconsolidation Of Previously Consolidated Investments Real Estate DeconsolidationOfPreviouslyConsolidatedInvestmentsRealEstate	0	USD
CY2019	dhc	Deconsolidation Of Previously Consolidated Investments Real Estate DeconsolidationOfPreviouslyConsolidatedInvestmentsRealEstate	0	USD
CY2021	dhc	Deconsolidation Of Previously Consolidated Investments Mortgage Notes DeconsolidationOfPreviouslyConsolidatedInvestmentsMortgageNotes	618452000	USD
CY2020	dhc	Deconsolidation Of Previously Consolidated Investments Mortgage Notes DeconsolidationOfPreviouslyConsolidatedInvestmentsMortgageNotes	0	USD
CY2019	dhc	Deconsolidation Of Previously Consolidated Investments Mortgage Notes DeconsolidationOfPreviouslyConsolidatedInvestmentsMortgageNotes	0	USD
CY2021	us-gaap	Construction In Progress Expenditures Incurred But Not Yet Paid ConstructionInProgressExpendituresIncurredButNotYetPaid	20031000	USD
CY2020	us-gaap	Construction In Progress Expenditures Incurred But Not Yet Paid ConstructionInProgressExpendituresIncurredButNotYetPaid	18097000	USD
CY2019	us-gaap	Construction In Progress Expenditures Incurred But Not Yet Paid ConstructionInProgressExpendituresIncurredButNotYetPaid	14111000	USD
CY2021	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	1297000	USD
CY2020	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	1833000	USD
CY2019	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	1124000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	634848000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	74417000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	37357000	USD
CY2021Q4	us-gaap	Restricted Cash RestrictedCash	382097000	USD
CY2020Q4	us-gaap	Restricted Cash RestrictedCash	16432000	USD
CY2019Q4	us-gaap	Restricted Cash RestrictedCash	14867000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1016945000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	90849000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	52224000	USD
CY2021Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	390	property
CY2021Q4	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	36	property
CY2021Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	6813556000	USD
CY2021Q4	dhc	Ownership Percentage Held In Subsidiary OwnershipPercentageHeldInSubsidiary	1
CY2021	dhc	Increase Decrease In Capitalized Above And Below Market Leases Rental Income IncreaseDecreaseInCapitalizedAboveAndBelowMarketLeasesRentalIncome	7211000	USD
CY2020	dhc	Increase Decrease In Capitalized Above And Below Market Leases Rental Income IncreaseDecreaseInCapitalizedAboveAndBelowMarketLeasesRentalIncome	7405000	USD
CY2019	dhc	Increase Decrease In Capitalized Above And Below Market Leases Rental Income IncreaseDecreaseInCapitalizedAboveAndBelowMarketLeasesRentalIncome	6791000	USD
CY2021	dhc	Amortization Of Intangible Assets And Liabilities AmortizationOfIntangibleAssetsAndLiabilities	42783000	USD
CY2020	dhc	Amortization Of Intangible Assets And Liabilities AmortizationOfIntangibleAssetsAndLiabilities	48669000	USD
CY2019	dhc	Amortization Of Intangible Assets And Liabilities AmortizationOfIntangibleAssetsAndLiabilities	64203000	USD
CY2021Q4	dhc	Above Market Lease Gross AboveMarketLeaseGross	8092000	USD
CY2020Q4	dhc	Above Market Lease Gross AboveMarketLeaseGross	12304000	USD
CY2021Q4	dhc	Above Market Lease Accumulated Amortization AboveMarketLeaseAccumulatedAmortization	6268000	USD
CY2020Q4	dhc	Above Market Lease Accumulated Amortization AboveMarketLeaseAccumulatedAmortization	9236000	USD
CY2021Q4	dhc	Above Market Lease Net AboveMarketLeaseNet	1824000	USD
CY2020Q4	dhc	Above Market Lease Net AboveMarketLeaseNet	3068000	USD
CY2021Q4	dhc	Lease Gross LeaseGross	123682000	USD
CY2020Q4	dhc	Lease Gross LeaseGross	551141000	USD
CY2021Q4	dhc	Lease Accumulated Amortization LeaseAccumulatedAmortization	76760000	USD
CY2020Q4	dhc	Lease Accumulated Amortization LeaseAccumulatedAmortization	267696000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	3267000	USD
CY2021Q4	dhc	Lease Net LeaseNet	46922000	USD
CY2020Q4	dhc	Lease Net LeaseNet	283445000	USD
CY2021Q4	dhc	Real Estate Leases Net RealEstateLeasesNet	48746000	USD
CY2020Q4	dhc	Real Estate Leases Net RealEstateLeasesNet	286513000	USD
CY2021Q4	us-gaap	Below Market Lease Gross BelowMarketLeaseGross	6141000	USD
CY2020Q4	us-gaap	Below Market Lease Gross BelowMarketLeaseGross	128991000	USD
CY2021Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	3585000	USD
CY2020Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	61161000	USD
CY2021Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	2556000	USD
CY2020Q4	us-gaap	Below Market Lease Net BelowMarketLeaseNet	67830000	USD
CY2021	dhc	Above Market Lease Weighted Average Amortization Period Lease Term AboveMarketLeaseWeightedAverageAmortizationPeriodLeaseTerm	P3Y8M12D
CY2021	dhc	Lease Weighted Average Amortization Period Lease Term LeaseWeightedAverageAmortizationPeriodLeaseTerm	P5Y3M18D
CY2021	dhc	Below Market Lease Weighted Average Amortization Period Lease Term BelowMarketLeaseWeightedAverageAmortizationPeriodLeaseTerm	P6Y10M24D
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	12095000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	11326000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	8030000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	4869000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	6603000	USD
CY2021	dhc	Deferred Finance Costs Future Amortization Expense Year Three DeferredFinanceCostsFutureAmortizationExpenseYearThree	5521000	USD
CY2021	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-42232000	USD
CY2021	dhc	Deferred Finance Costs Future Amortization Expense Year One DeferredFinanceCostsFutureAmortizationExpenseYearOne	9974000	USD
CY2021	dhc	Deferred Finance Costs Future Amortization Expense Year Two DeferredFinanceCostsFutureAmortizationExpenseYearTwo	5832000	USD
CY2021	dhc	Deferred Finance Costs Future Amortization Expense Year Four DeferredFinanceCostsFutureAmortizationExpenseYearFour	3556000	USD
CY2021	dhc	Deferred Finance Costs Future Amortization Expense Year Five DeferredFinanceCostsFutureAmortizationExpenseYearFive	1956000	USD
CY2021	dhc	Deferred Finance Costs Future Amortization Expense After Year Five DeferredFinanceCostsFutureAmortizationExpenseAfterYearFive	15494000	USD
CY2021Q4	us-gaap	Deferred Costs Leasing Gross DeferredCostsLeasingGross	64255000	USD
CY2020Q4	us-gaap	Deferred Costs Leasing Gross DeferredCostsLeasingGross	44506000	USD
CY2021Q4	us-gaap	Deferred Costs Leasing Accumulated Amortization DeferredCostsLeasingAccumulatedAmortization	17074000	USD
CY2020Q4	us-gaap	Deferred Costs Leasing Accumulated Amortization DeferredCostsLeasingAccumulatedAmortization	15605000	USD
CY2021	dhc	Deferred Costs Leasing Weighted Average Amortization Period DeferredCostsLeasingWeightedAverageAmortizationPeriod	P8Y8M12D
CY2021Q4	dhc	Deferred Costs Leasing Expected Future Amortization Year One DeferredCostsLeasingExpectedFutureAmortizationYearOne	7168000	USD
CY2021Q4	dhc	Deferred Costs Leasing Expected Future Amortization Year Two DeferredCostsLeasingExpectedFutureAmortizationYearTwo	6502000	USD
CY2021Q4	dhc	Deferred Costs Leasing Expected Future Amortization Year Three DeferredCostsLeasingExpectedFutureAmortizationYearThree	5903000	USD
CY2021Q4	dhc	Deferred Costs Leasing Expected Future Amortization Year Four DeferredCostsLeasingExpectedFutureAmortizationYearFour	5397000	USD
CY2021Q4	dhc	Deferred Costs Leasing Expected Future Amortization Year Five DeferredCostsLeasingExpectedFutureAmortizationYearFive	4732000	USD
CY2021Q4	dhc	Deferred Costs Leasing Expected Future Amortization Year After Year Five DeferredCostsLeasingExpectedFutureAmortizationYearAfterYearFive	17479000	USD
CY2021	dhc	Operating Leases Percentage Of Rents Earned OperatingLeasesPercentageOfRentsEarned	1993000	USD
CY2020	dhc	Operating Leases Percentage Of Rents Earned OperatingLeasesPercentageOfRentsEarned	2144000	USD
CY2019	dhc	Operating Leases Percentage Of Rents Earned OperatingLeasesPercentageOfRentsEarned	2958000	USD
CY2021	dhc	Proceeds From The Provider Relief Fund Cares Act ProceedsFromTheProviderReliefFundCARESAct	20800000	USD
CY2020	dhc	Proceeds From The Provider Relief Fund Cares Act ProceedsFromTheProviderReliefFundCARESAct	19961000	USD
CY2021Q4	dhc	Other Liabilities Cares Act OtherLiabilitiesCARESAct	3722000	USD
CY2020Q4	dhc	Other Liabilities Cares Act OtherLiabilitiesCARESAct	2476000	USD
CY2021Q4	dhc	Other Liabilities Cares Act OtherLiabilitiesCARESAct	3722000	USD
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2020	us-gaap	Variable Lease Payment VariableLeasePayment	77599000	USD
CY2021	dhc	Lease Committed But Unspent Tenant Related Obligations LeaseCommittedButUnspentTenantRelatedObligations	76573000	USD
CY2020	dhc	Lease Committed But Unspent Tenant Related Obligations LeaseCommittedButUnspentTenantRelatedObligations	19159000	USD
CY2021	us-gaap	Straight Line Rent StraightLineRent	5846000	USD
CY2020	us-gaap	Straight Line Rent StraightLineRent	6069000	USD
CY2019	us-gaap	Straight Line Rent StraightLineRent	4508000	USD
CY2021	dhc	Straight Line Rent Excluding Properties Heldfor Sale StraightLineRentExcludingPropertiesHeldforSale	82131000	USD
CY2020	dhc	Straight Line Rent Excluding Properties Heldfor Sale StraightLineRentExcludingPropertiesHeldforSale	104803000	USD
CY2021	us-gaap	Variable Lease Payment VariableLeasePayment	74860000	USD
CY2019	us-gaap	Variable Lease Payment VariableLeasePayment	78668000	USD
CY2021	dhc	Reimbursement Revenue Lease ReimbursementRevenueLease	72690000	USD
CY2020	dhc	Reimbursement Revenue Lease ReimbursementRevenueLease	75378000	USD
CY2019	dhc	Reimbursement Revenue Lease ReimbursementRevenueLease	75432000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	236309000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	234633000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	219532000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Four Years LessorOperatingLeasePaymentsToBeReceivedFourYears	197712000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Five Years LessorOperatingLeasePaymentsToBeReceivedFiveYears	181819000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received Thereafter LessorOperatingLeasePaymentsToBeReceivedThereafter	812989000	USD
CY2021Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	1882994000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4153000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	4352000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	4237000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.18
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	4410000	USD
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1960000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1568000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1388000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.04
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	9540000	USD
CY2021	dhc	Common Stock Dividends Ordinary Income Distribution Percentage CommonStockDividendsOrdinaryIncomeDistributionPercentage	0
CY2021	dhc	Common Stock Dividends Return Of Capital Distribution Percentage CommonStockDividendsReturnOfCapitalDistributionPercentage	1.000
CY2021	dhc	Common Stock Dividends Capital Gain Distribution Percentage CommonStockDividendsCapitalGainDistributionPercentage	0
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	42825000	USD
CY2020	dhc	Common Stock Dividends Ordinary Income Distribution Percentage CommonStockDividendsOrdinaryIncomeDistributionPercentage	0
CY2020	dhc	Common Stock Dividends Return Of Capital Distribution Percentage CommonStockDividendsReturnOfCapitalDistributionPercentage	0
CY2020	dhc	Common Stock Dividends Capital Gain Distribution Percentage CommonStockDividendsCapitalGainDistributionPercentage	1.000
CY2019	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.84
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	199719000	USD
CY2019	dhc	Common Stock Dividends Ordinary Income Distribution Percentage CommonStockDividendsOrdinaryIncomeDistributionPercentage	0
CY2019	dhc	Common Stock Dividends Return Of Capital Distribution Percentage CommonStockDividendsReturnOfCapitalDistributionPercentage	0.257
CY2019	dhc	Common Stock Dividends Capital Gain Distribution Percentage CommonStockDividendsCapitalGainDistributionPercentage	0.743
CY2021Q4	dei	Entity Number Of Employees EntityNumberOfEmployees	0	employee
CY2021	us-gaap	Professional Fees ProfessionalFees	13161000	USD
CY2020	us-gaap	Professional Fees ProfessionalFees	13805000	USD
CY2019	us-gaap	Professional Fees ProfessionalFees	13373000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	400000	USD
CY2019	us-gaap	Other Comprehensive Income Other Net Of Tax OtherComprehensiveIncomeOtherNetOfTax	91000	USD
CY2021Q4	dhc	Consolidated Income Available To Debt Ratio ConsolidatedIncomeAvailableToDebtRatio	1.5
CY2021Q4	dhc	Consolidated Income Available To Debt Ratio ConsolidatedIncomeAvailableToDebtRatio	1.5
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	39067000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	816413000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	251834000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1002001000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	904000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1608916000	USD
CY2021Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	3676524000	USD
CY2021	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-42232000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5411000	USD
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	5411000	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	5146000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5146000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	5356000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5356000	USD
CY2021	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	22348000	USD
CY2020	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	22292000	USD
CY2019	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	21583000	USD
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1383212000	USD
CY2021	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	1091812000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	271131000	USD
CY2021	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	34087000	USD
CY2021	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	17506000	USD
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	-174000	USD
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	1414362000	USD
CY2021	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	492272000	USD
CY2021	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	-42232000	USD
CY2021	us-gaap	Interest And Other Income InterestAndOtherIncome	20635000	USD
CY2021	us-gaap	Interest Expense InterestExpense	255759000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-2410000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	181356000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1430000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	179926000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5411000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	174515000	USD
CY2021Q4	us-gaap	Assets Assets	6623514000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1632026000	USD
CY2020	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	1236357000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	270147000	USD
CY2020	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	30593000	USD
CY2020	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	814000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	106972000	USD
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	1644883000	USD
CY2020	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	6487000	USD
CY2020	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	34106000	USD
CY2020	us-gaap	Interest And Other Income InterestAndOtherIncome	18221000	USD
CY2019	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	39696000	USD
CY2020	us-gaap	Interest Expense InterestExpense	201483000	USD
CY2020	us-gaap	Gain Loss On Termination Of Lease GainLossOnTerminationOfLease	22896000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-427000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-133057000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1250000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-134307000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5146000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-139453000	USD
CY2020Q4	us-gaap	Assets Assets	6476424000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1040155000	USD
CY2019	us-gaap	Operating Costs And Expenses OperatingCostsAndExpenses	489070000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	289025000	USD
CY2019	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	37028000	USD
CY2019	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	13102000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	115201000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	943426000	USD
CY2019	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	1846000	USD
CY2019	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	-41898000	USD
CY2019	us-gaap	Interest And Other Income InterestAndOtherIncome	941000	USD
CY2019	us-gaap	Interest Expense InterestExpense	180112000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-44000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-82842000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	436000	USD
CY2019	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	400000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-82878000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	5356000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-88234000	USD
CY2019Q4	us-gaap	Assets Assets	6653826000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	200000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1230000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1250000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	436000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1430000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1250000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	436000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1430000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1250000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	436000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.210
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Exempt Income EffectiveIncomeTaxRateReconciliationTaxExemptIncome	0.210
CY2021	dhc	Effective Income Tax Rate Reconciliation Excise Tax Percent EffectiveIncomeTaxRateReconciliationExciseTaxPercent	0.001
CY2020	dhc	Effective Income Tax Rate Reconciliation Excise Tax Percent EffectiveIncomeTaxRateReconciliationExciseTaxPercent	0
CY2019	dhc	Effective Income Tax Rate Reconciliation Excise Tax Percent EffectiveIncomeTaxRateReconciliationExciseTaxPercent	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.008
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.013
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.005
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.009
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.013
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.005
CY2021Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	2132000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	3252000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	1577000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	10856000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	784000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	758000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	25829000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	28358000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	30322000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	43224000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	30322000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	43224000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2020Q4	dhc	Deferred Tax Assets Valuation Allowance As Percentage Of Aggregate Deferred Tax Assets DeferredTaxAssetsValuationAllowanceAsPercentageOfAggregateDeferredTaxAssets	1
CY2021Q4	dhc	Deferred Tax Assets Valuation Allowance As Percentage Of Aggregate Deferred Tax Assets DeferredTaxAssetsValuationAllowanceAsPercentageOfAggregateDeferredTaxAssets	1
CY2021Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	103682000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Not Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration	141160000	USD
CY2021Q4	srt	Real Estate Federal Income Tax Basis RealEstateFederalIncomeTaxBasis	7405729000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	237967000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	237739000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	237604000	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	237967000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	237739000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	237604000	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	60000	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	223000	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	36000	shares
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	6636000	USD

Files In Submission

Name	View Source	Status
0001075415-22-000007-index-headers.html	Edgar Link	pending
0001075415-22-000007-index.html	Edgar Link	pending
0001075415-22-000007.txt	Edgar Link	pending
0001075415-22-000007-xbrl.zip	Edgar Link	pending
dhc-20211231.htm	Edgar Link	pending
dhc-20211231.xsd	Edgar Link	pending
dhc-20211231_cal.xml	Edgar Link	unprocessable
dhc-20211231_def.xml	Edgar Link	unprocessable
dhc-20211231_htm.xml	Edgar Link	completed
dhc-20211231_lab.xml	Edgar Link	unprocessable
dhc-20211231_pre.xml	Edgar Link	unprocessable
dhctaxopinionimage2a04.gif	Edgar Link	pending
dhctaxopinionmage1a04.gif	Edgar Link	pending
dhc_123121xexhibitx1018.htm	Edgar Link	pending
dhc_123121xexhibitx1019.htm	Edgar Link	pending
dhc_123121xexhibitx211.htm	Edgar Link	pending
dhc_123121xexhibitx221.htm	Edgar Link	pending
dhc_123121xexhibitx231.htm	Edgar Link	pending
dhc_123121xexhibitx232.htm	Edgar Link	pending
dhc_123121xexhibitx311.htm	Edgar Link	pending
dhc_123121xexhibitx312.htm	Edgar Link	pending
dhc_123121xexhibitx321.htm	Edgar Link	pending
dhc_123121xexhibitx81.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
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R75.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$DHC
Diversified Healthcare Trust Stock $dhc

2021 Q4 Form 10-K Financial Statement

#000107541522000007 Filed on February 24, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DHC Diversified Healthcare Trust Stock $dhc

2021 Q4 Form 10-K Financial Statement

#000107541522000007 Filed on February 24, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$DHC
Diversified Healthcare Trust Stock $dhc