$OPI
OFFICE PROPERTIES INCOME TRUST Stock $opi

$opi Overview Financials Valuation SEC Filings Company Website

2024 Q4 Form 10-Q Financial Statement

#000145677224000052 Filed on October 30, 2024

Income Statement

Concept	2024 Q4	2024 Q3	2024 Q2
Revenue		$120.6M	$123.7M
YoY Change		-9.55%	-7.69%
Cost Of Revenue		$43.55M	$41.88M
YoY Change		3.18%	-1.54%
Gross Profit		$77.07M	$81.81M
YoY Change		-15.45%	-10.56%
Gross Profit Margin		63.9%	66.14%
Selling, General & Admin		$12.80M	$11.05M
YoY Change		-2.91%	-4.12%
% of Gross Profit		16.6%	13.51%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization		$43.50M	$47.77M
YoY Change		-12.86%	-3.46%
% of Gross Profit		56.45%	58.39%
Operating Expenses		$58.84M	$61.44M
YoY Change		-10.09%	-2.67%
Operating Profit		$18.23M	$20.36M
YoY Change		-29.1%	-28.13%
Interest Expense		$42.58M	$38.35M
YoY Change		47.67%	44.58%
% of Operating Profit		233.56%	188.31%
Other Income/Expense, Net
YoY Change
Pretax Income		-$58.02M	$76.24M
YoY Change		209.71%	-772.35%
Income Tax		$230.0K	-$107.0K
% Of Pretax Income			-0.14%
Net Earnings		-$58.41M	$76.17M
YoY Change		198.14%	-722.21%
Net Earnings / Revenue		-48.43%	61.58%
Basic Earnings Per Share		-$1.14	$1.56
Diluted Earnings Per Share		-$1.14	$1.56
COMMON SHARES
Basic Shares Outstanding	55.78M shares	50.25M shares	48.75M shares
Diluted Shares Outstanding		51.20M shares	48.65M shares

Balance Sheet

Concept	2024 Q3	2024 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$22.36M	$13.50M
YoY Change	-8.19%	-46.46%
Cash & Equivalents	$22.36M	$13.50M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables	$146.6M	$140.5M
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$168.9M	$154.0M
YoY Change	13.84%	13.4%
LONG-TERM ASSETS
Property, Plant & Equipment	$3.287B	$3.397B
YoY Change	-11.9%	-9.39%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$17.55M	$17.72M
YoY Change	-52.05%	-52.58%
Other Assets	$235.1M	$222.2M
YoY Change	100.41%	133.8%
Total Long-Term Assets	$3.557B	$3.646B
YoY Change	-8.71%	-6.32%
TOTAL ASSETS
Total Short-Term Assets	$168.9M	$154.0M
Total Long-Term Assets	$3.557B	$3.646B
Total Assets	$3.726B	$3.800B
YoY Change	-7.89%	-5.65%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$105.9M	$142.4M
YoY Change	-31.25%	5.96%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$111.8M	$148.4M
YoY Change	-30.9%	5.53%
LONG-TERM LIABILITIES
Long-Term Debt	$2.322B	$2.308B
YoY Change	-9.51%	-9.07%
Other Long-Term Liabilities	$13.57M	$13.88M
YoY Change	7.49%	7.47%
Total Long-Term Liabilities	$2.336B	$2.322B
YoY Change	-9.42%	-8.99%
TOTAL LIABILITIES
Total Short-Term Liabilities	$111.8M	$148.4M
Total Long-Term Liabilities	$2.336B	$2.322B
Total Liabilities	$2.447B	$2.470B
YoY Change	-10.69%	-8.23%
SHAREHOLDERS EQUITY
Retained Earnings	$112.7M	$171.2M
YoY Change	-17.9%	9.08%
Common Stock	$2.634B	$2.626B
YoY Change	0.47%	0.18%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.279B	$1.330B
YoY Change
Total Liabilities & Shareholders Equity	$3.726B	$3.800B
YoY Change	-7.89%	-5.65%

Cashflow Statement

Concept	2024 Q3	2024 Q2
OPERATING ACTIVITIES
Net Income	-$58.41M	$76.17M
YoY Change	198.14%	-722.21%
Depreciation, Depletion And Amortization	$43.50M	$47.77M
YoY Change	-12.86%	-3.46%
Cash From Operating Activities	-$17.06M	$31.87M
YoY Change	-181.59%	-12.28%
INVESTING ACTIVITIES
Capital Expenditures	$36.08M	$16.97M
YoY Change	-2.24%	-76.45%
Acquisitions
YoY Change
Other Investing Activities	$44.11M	$50.00K
YoY Change	344.55%	-99.15%
Cash From Investing Activities	$8.031M	-$16.92M
YoY Change	-129.76%	-74.42%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	10.91M	-24.67M
YoY Change	-45.14%	-176.38%
NET CHANGE
Cash From Operating Activities	-17.06M	31.87M
Cash From Investing Activities	8.031M	-16.92M
Cash From Financing Activities	10.91M	-24.67M
Net Change In Cash	1.882M	-9.719M
YoY Change	-86.37%	-492.21%
FREE CASH FLOW
Cash From Operating Activities	-$17.06M	$31.87M
Capital Expenditures	$36.08M	$16.97M
Free Cash Flow	-$53.13M	$14.90M
YoY Change	232.11%	-141.69%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity Registrant Name EntityRegistrantName	OFFICE PROPERTIES INCOME TRUST
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MD
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	26-4273474
	dei	Entity Address Address Line1 EntityAddressAddressLine1	Two Newton Place,
	dei	Entity Address Address Line2 EntityAddressAddressLine2	255 Washington Street,
	dei	Entity Address State Or Province EntityAddressStateOrProvince	MA
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	02458-1634
	dei	City Area Code CityAreaCode	617
	dei	Local Phone Number LocalPhoneNumber	219-1440
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	true
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
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	dei	Entity Address City Or Town EntityAddressCityOrTown	Newton,
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	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
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	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2024
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	dei	Document Period End Date DocumentPeriodEndDate	2024-09-30
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CY2023Q1	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	477000	usd
CY2023Q1	opi	Shares Granted Value Share Based Payment Arrangement Forfeited And Repurchased SharesGrantedValueShareBasedPaymentArrangementForfeitedAndRepurchased	15000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	-446000	usd
CY2023Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	26710000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	1359641000	usd
CY2023Q2	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	744000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	-12242000	usd
CY2023Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	12141000	usd
CY2023Q3	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	658000	usd
CY2023Q3	opi	Shares Granted Value Share Based Payment Arrangement Forfeited And Repurchased SharesGrantedValueShareBasedPaymentArrangementForfeitedAndRepurchased	240000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	-19593000	usd
CY2023Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	12147000	usd
	us-gaap	Net Income Loss NetIncomeLoss	12573000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-32281000	usd
	us-gaap	Depreciation Depreciation	89587000	usd
	us-gaap	Depreciation Depreciation	77635000	usd
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	9261000	usd
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	6808000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	49055000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	71332000	usd
	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	9562000	usd
	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	7359000	usd
	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	6008000	usd
	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	487000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51197000	shares
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51197000	shares
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.67
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.67
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	1250364000	usd
CY2024Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	7448000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1386335000	usd
CY2023Q1	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	477000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	-446000	usd
CY2023Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	26710000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	1359641000	usd
CY2023Q2	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	744000	usd
CY2023Q2	opi	Shares Granted Value Share Based Payment Arrangement Forfeited And Repurchased SharesGrantedValueShareBasedPaymentArrangementForfeitedAndRepurchased	47000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	-12242000	usd
CY2023Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	12141000	usd
CY2023Q3	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	658000	usd
CY2023Q3	opi	Shares Granted Value Share Based Payment Arrangement Forfeited And Repurchased SharesGrantedValueShareBasedPaymentArrangementForfeitedAndRepurchased	240000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	-19593000	usd
CY2023Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	12147000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	1304633000	usd
	us-gaap	Net Income Loss NetIncomeLoss	12573000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-32281000	usd
	us-gaap	Depreciation Depreciation	89587000	usd
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	9261000	usd
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	6808000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	71332000	usd
	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	9562000	usd
	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	7359000	usd
	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	6008000	usd
	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	487000	usd
	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	173579000	usd
	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	usd
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	238008000	usd
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
	us-gaap	Straight Line Rent StraightLineRent	23796000	usd
	us-gaap	Straight Line Rent StraightLineRent	17120000	usd
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-587000	usd
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1053000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-576000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-2290000	usd
	us-gaap	Increase Decrease In Leasing Receivables IncreaseDecreaseInLeasingReceivables	-6830000	usd
	us-gaap	Increase Decrease In Leasing Receivables IncreaseDecreaseInLeasingReceivables	1375000	usd
	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	18231000	usd
	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	17904000	usd
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-18686000	usd
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	14952000	usd
	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	-1119000	usd
	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	1297000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	41442000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	109133000	usd
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	93081000	usd
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	175628000	usd
	opi	Contributions To Unconsolidated Joint Ventures ContributionsToUnconsolidatedJointVentures	0	usd
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	93081000	usd
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	175628000	usd
	opi	Contributions To Unconsolidated Joint Ventures ContributionsToUnconsolidatedJointVentures	0	usd
	opi	Contributions To Unconsolidated Joint Ventures ContributionsToUnconsolidatedJointVentures	3763000	usd
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	79830000	usd
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	22449000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-13251000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-156942000	usd
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	0	usd
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-29655000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-32281000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51197000	shares
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51197000	shares
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.67
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.67
CY2024Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	487000	usd
CY2024Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	7448000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	1278586000	usd
CY2023Q1	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	477000	usd
CY2023Q1	opi	Shares Granted Value Share Based Payment Arrangement Forfeited And Repurchased SharesGrantedValueShareBasedPaymentArrangementForfeitedAndRepurchased	15000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	-446000	usd
CY2023Q1	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	26710000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	1359641000	usd
CY2023Q2	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	744000	usd
CY2023Q2	opi	Shares Granted Value Share Based Payment Arrangement Forfeited And Repurchased SharesGrantedValueShareBasedPaymentArrangementForfeitedAndRepurchased	47000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	-12242000	usd
CY2023Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	12141000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	1335955000	usd
CY2023Q3	us-gaap	Stock Granted During Period Value Sharebased Compensation StockGrantedDuringPeriodValueSharebasedCompensation	658000	usd
CY2023Q3	opi	Shares Granted Value Share Based Payment Arrangement Forfeited And Repurchased SharesGrantedValueShareBasedPaymentArrangementForfeitedAndRepurchased	240000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	-19593000	usd
CY2023Q3	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	12147000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	1304633000	usd
	us-gaap	Net Income Loss NetIncomeLoss	12573000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-32281000	usd
	us-gaap	Depreciation Depreciation	89587000	usd
	us-gaap	Depreciation Depreciation	77635000	usd
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	9261000	usd
	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	6808000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	49055000	usd
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	71332000	usd
	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	9562000	usd
	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	7359000	usd
	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	173579000	usd
	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	usd
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	238008000	usd
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
	us-gaap	Straight Line Rent StraightLineRent	23796000	usd
	us-gaap	Straight Line Rent StraightLineRent	17120000	usd
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-587000	usd
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1053000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-576000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-2290000	usd
	us-gaap	Increase Decrease In Leasing Receivables IncreaseDecreaseInLeasingReceivables	-6830000	usd
	us-gaap	Increase Decrease In Leasing Receivables IncreaseDecreaseInLeasingReceivables	1375000	usd
	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	18231000	usd
	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	17904000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	4426000	usd
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-18686000	usd
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	14952000	usd
	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	-1119000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	41442000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	109133000	usd
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	93081000	usd
	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	173579000	usd
	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	usd
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	238008000	usd
	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	usd
	us-gaap	Straight Line Rent StraightLineRent	23796000	usd
	us-gaap	Straight Line Rent StraightLineRent	17120000	usd
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-587000	usd
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1053000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-576000	usd
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-2290000	usd
	us-gaap	Increase Decrease In Leasing Receivables IncreaseDecreaseInLeasingReceivables	-6830000	usd
	us-gaap	Increase Decrease In Leasing Receivables IncreaseDecreaseInLeasingReceivables	1375000	usd
	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	18231000	usd
	us-gaap	Increase Decrease In Deferred Leasing Fees IncreaseDecreaseInDeferredLeasingFees	17904000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	4320000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	4426000	usd
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-18686000	usd
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	14952000	usd
	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	-1119000	usd
	us-gaap	Increase Decrease In Due To Related Parties IncreaseDecreaseInDueToRelatedParties	1297000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	41442000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	109133000	usd
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	93081000	usd
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	175628000	usd
	opi	Contributions To Unconsolidated Joint Ventures ContributionsToUnconsolidatedJointVentures	0	usd
	opi	Contributions To Unconsolidated Joint Ventures ContributionsToUnconsolidatedJointVentures	3763000	usd
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	79830000	usd
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	22449000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-13251000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-156942000	usd
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	0	usd
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	50000000	usd
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	usd
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	177320000	usd
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	350242000	usd
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	usd
	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	280500000	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	327000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	332000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	220000000	usd
	opi	Proceeds From Issuance Of Secured Term Loan ProceedsFromIssuanceOfSecuredTermLoan	100000000	usd
	opi	Proceeds From Issuance Of Secured Term Loan ProceedsFromIssuanceOfSecuredTermLoan	0	usd
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	42226000	usd
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5843000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1477000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	50998000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-18636000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	75188000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	9555000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	27379000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	26714000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	12249000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	36269000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	39628000	usd
	us-gaap	Interest Paid Net InterestPaidNet	121651000	usd
	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	175628000	usd
	opi	Contributions To Unconsolidated Joint Ventures ContributionsToUnconsolidatedJointVentures	0	usd
	opi	Contributions To Unconsolidated Joint Ventures ContributionsToUnconsolidatedJointVentures	3763000	usd
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	79830000	usd
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	22449000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-13251000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-156942000	usd
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	0	usd
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	50000000	usd
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	usd
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	177320000	usd
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	350242000	usd
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	usd
	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	280500000	usd
	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	327000000	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	225000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	332000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	220000000	usd
	opi	Proceeds From Issuance Of Secured Term Loan ProceedsFromIssuanceOfSecuredTermLoan	100000000	usd
	opi	Proceeds From Issuance Of Secured Term Loan ProceedsFromIssuanceOfSecuredTermLoan	0	usd
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	42226000	usd
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5843000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	191000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	291000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1477000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-18636000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	75188000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	9555000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	27379000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	26714000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	36269000	usd
	us-gaap	Interest Paid Net InterestPaidNet	79324000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	302000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	374000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	16595000	usd
	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	6423000	usd
	opi	Extinguishment Of Debt In Exchange For Senior Notes And Common Shares ExtinguishmentOfDebtInExchangeForSeniorNotesAndCommonShares	295462000	usd
	opi	Extinguishment Of Debt In Exchange For Senior Notes And Common Shares ExtinguishmentOfDebtInExchangeForSeniorNotesAndCommonShares	0	usd
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	22363000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	36269000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	39628000	usd
	opi	Contributions To Unconsolidated Joint Ventures ContributionsToUnconsolidatedJointVentures	3763000	usd
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	79830000	usd
	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	22449000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-156942000	usd
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	0	usd
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	50000000	usd
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	0	usd
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	177320000	usd
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	350242000	usd
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	usd
	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	280500000	usd
	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	327000000	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	225000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	332000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	220000000	usd
	opi	Proceeds From Issuance Of Secured Term Loan ProceedsFromIssuanceOfSecuredTermLoan	100000000	usd
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	42226000	usd
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5843000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	191000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	291000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1477000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	50998000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	75188000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	9555000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	27379000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	26714000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	12249000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	36269000	usd
	us-gaap	Interest Paid Net InterestPaidNet	121651000	usd
	us-gaap	Interest Paid Net InterestPaidNet	79324000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	302000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	374000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	16595000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	41445000	usd
	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	969000	usd
	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	6423000	usd
	opi	Extinguishment Of Debt In Exchange For Senior Notes And Common Shares ExtinguishmentOfDebtInExchangeForSeniorNotesAndCommonShares	295462000	usd
	opi	Extinguishment Of Debt In Exchange For Senior Notes And Common Shares ExtinguishmentOfDebtInExchangeForSeniorNotesAndCommonShares	0	usd
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	22363000	usd
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	24358000	usd
CY2024Q3	us-gaap	Restricted Cash RestrictedCash	13906000	usd
CY2023Q3	us-gaap	Restricted Cash RestrictedCash	15270000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	39628000	usd
	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	177320000	usd
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	350242000	usd
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	usd
	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	280500000	usd
	us-gaap	Proceeds From Issuance Of Senior Long Term Debt ProceedsFromIssuanceOfSeniorLongTermDebt	0	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	327000000	usd
	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	225000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	332000000	usd
	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	220000000	usd
	opi	Proceeds From Issuance Of Secured Term Loan ProceedsFromIssuanceOfSecuredTermLoan	100000000	usd
	opi	Proceeds From Issuance Of Secured Term Loan ProceedsFromIssuanceOfSecuredTermLoan	0	usd
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	42226000	usd
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	5843000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	191000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	291000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1477000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	50998000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-18636000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	75188000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	27379000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	26714000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	12249000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	36269000	usd
	us-gaap	Interest Paid Net InterestPaidNet	121651000	usd
	us-gaap	Interest Paid Net InterestPaidNet	79324000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	302000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	374000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	41445000	usd
	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	6423000	usd
	opi	Extinguishment Of Debt In Exchange For Senior Notes And Common Shares ExtinguishmentOfDebtInExchangeForSeniorNotesAndCommonShares	0	usd
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	22363000	usd
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	24358000	usd
CY2024Q3	us-gaap	Restricted Cash RestrictedCash	13906000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	39628000	usd
	us-gaap	Interest Paid Net InterestPaidNet	79324000	usd
	us-gaap	Income Taxes Paid IncomeTaxesPaid	302000	usd
	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	16595000	usd
	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	969000	usd
	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	6423000	usd
	opi	Extinguishment Of Debt In Exchange For Senior Notes And Common Shares ExtinguishmentOfDebtInExchangeForSeniorNotesAndCommonShares	295462000	usd
	opi	Extinguishment Of Debt In Exchange For Senior Notes And Common Shares ExtinguishmentOfDebtInExchangeForSeniorNotesAndCommonShares	0	usd
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	22363000	usd
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	24358000	usd
CY2024Q3	us-gaap	Restricted Cash RestrictedCash	13906000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	39628000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	-19593000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-32281000	usd
CY2024Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	2000	usd
CY2023Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	50000	usd
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	74000	usd
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	232000	usd
CY2024Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-58416000	usd
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	-58414000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	-19593000	usd
	us-gaap	Net Income Loss NetIncomeLoss	12573000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-32281000	usd
CY2024Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	2000	usd
CY2023Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	50000	usd
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	74000	usd
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	232000	usd
CY2024Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-58416000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-19643000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	12499000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-32513000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	-19593000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-32281000	usd
CY2024Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	2000	usd
CY2023Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	50000	usd
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	74000	usd
CY2024Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-58416000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-19643000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	12499000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-32513000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51197000	shares
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51197000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49444000	shares
CY2024Q3	us-gaap	Net Income Loss NetIncomeLoss	-58414000	usd
CY2023Q3	us-gaap	Net Income Loss NetIncomeLoss	-19593000	usd
	us-gaap	Net Income Loss NetIncomeLoss	12573000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-32281000	usd
CY2024Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	2000	usd
CY2023Q3	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	50000	usd
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	74000	usd
	us-gaap	Participating Securities Distributed And Undistributed Earnings Loss Basic ParticipatingSecuritiesDistributedAndUndistributedEarningsLossBasic	232000	usd
CY2024Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-58416000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-19643000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-32513000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51197000	shares
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51197000	shares
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	48403000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49444000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	49444000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	48365000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	48365000	shares
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.14
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.14
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.41
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.41
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.25
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.25
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.67
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.67
CY2024Q3	opi	Number Of Operating Lease Executed NumberOfOperatingLeaseExecuted	14	lease
CY2024Q3	opi	Operating Leases Committed Expenditures On Leases Executed In Period Area Of Leased Property OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriodAreaOfLeasedProperty	987000	sqft
CY2024Q3	opi	Operating Leases Weighted Average Lease Term OperatingLeasesWeightedAverageLeaseTerm	P10Y2M12D
CY2024Q3	opi	Operating Leases Committed Expenditures On Leases Executed In Period OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriod	65916000	usd
CY2023Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-19643000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	12499000	usd
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-32513000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51197000	shares
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51197000	shares
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	48403000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49444000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	49444000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	48365000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	48365000	shares
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.14
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.41
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.41
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.67
CY2024Q3	opi	Number Of Operating Lease Executed NumberOfOperatingLeaseExecuted	14	lease
CY2024Q3	opi	Operating Leases Committed Expenditures On Leases Executed In Period Area Of Leased Property OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriodAreaOfLeasedProperty	987000	sqft
CY2024Q3	opi	Operating Leases Weighted Average Lease Term OperatingLeasesWeightedAverageLeaseTerm	P10Y2M12D
CY2024Q3	opi	Operating Leases Committed Expenditures On Leases Executed In Period OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriod	65916000	usd
	opi	Number Of Operating Lease Executed NumberOfOperatingLeaseExecuted	39	lease
	opi	Operating Leases Committed Expenditures On Leases Executed In Period Area Of Leased Property OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriodAreaOfLeasedProperty	1683000	sqft
	opi	Operating Leases Weighted Average Lease Term OperatingLeasesWeightedAverageLeaseTerm	P9Y1M6D
	opi	Operating Leases Committed Expenditures On Leases Executed In Period OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriod	80875000	usd
CY2024Q3	opi	Operating Leases Committed Expenditures On Leases Executed In Period Committed But Unspent Tenant Related Obligations OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriodCommittedButUnspentTenantRelatedObligations	100646000	usd
CY2024Q3	us-gaap	Impairment Charge On Reclassified Assets ImpairmentChargeOnReclassifiedAssets	2573000	usd
CY2024Q3	opi	Number Of Joint Ventures NumberOfJointVentures	1	joint_venture
	us-gaap	Revenue Recognition Leases RevenueRecognitionLeases	<div style="margin-bottom:10pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Our leases provide for base rent payments and, in addition, may include variable payments. Rental income from operating leases, including any payments derived by index or market-based indices, is recognized on a straight line basis over the lease term once we have determined that the collectability of substantially all of the lease payments is probable. Some of our leases have options to extend or terminate the lease exercisable at the option of our tenants, which are considered when determining </span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">the lease term. Allowances for bad debts are recognized as a direct reduction of rental income. In certain circumstances, some leases provide the tenant with the right to terminate if the legislature or other funding authority does not appropriate the funding necessary for the tenant to meet its lease obligations; we have determined the fixed non-cancelable lease term of these leases to be the full term of the lease because we believe the occurrence of early terminations to be a remote contingency based on both our historical experience and our assessments of the likelihood of lease cancellation on a separate lease basis.</span></div>
CY2024Q3	us-gaap	Straight Line Rent Adjustments StraightLineRentAdjustments	8854000	usd
CY2023Q3	us-gaap	Straight Line Rent Adjustments StraightLineRentAdjustments	8691000	usd
	us-gaap	Straight Line Rent Adjustments StraightLineRentAdjustments	23796000	usd
CY2024Q3	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	134218000	usd
CY2023Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	112440000	usd
CY2024Q3	us-gaap	Variable Lease Income VariableLeaseIncome	22291000	usd
	us-gaap	Variable Lease Income VariableLeaseIncome	65120000	usd
CY2024Q3	opi	Tenant Reimbursement Income TenantReimbursementIncome	21271000	usd
	opi	Tenant Reimbursement Income TenantReimbursementIncome	61667000	usd
CY2023Q3	us-gaap	Variable Lease Income VariableLeaseIncome	21067000	usd
	us-gaap	Variable Lease Income VariableLeaseIncome	64627000	usd
CY2023Q3	opi	Tenant Reimbursement Income TenantReimbursementIncome	19722000	usd
	opi	Tenant Reimbursement Income TenantReimbursementIncome	60641000	usd
CY2024Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51197000	shares
CY2024Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51197000	shares
CY2023Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	48403000	shares
CY2023Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	48403000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	49444000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	49444000	shares
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.14
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.25
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.25
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.67
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.67
CY2024Q3	opi	Number Of Operating Lease Executed NumberOfOperatingLeaseExecuted	14	lease
CY2024Q3	opi	Operating Leases Committed Expenditures On Leases Executed In Period Area Of Leased Property OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriodAreaOfLeasedProperty	987000	sqft
CY2024Q3	opi	Operating Leases Weighted Average Lease Term OperatingLeasesWeightedAverageLeaseTerm	P10Y2M12D
CY2024Q3	opi	Operating Leases Committed Expenditures On Leases Executed In Period OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriod	65916000	usd
	opi	Number Of Operating Lease Executed NumberOfOperatingLeaseExecuted	39	lease
	opi	Operating Leases Committed Expenditures On Leases Executed In Period Area Of Leased Property OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriodAreaOfLeasedProperty	1683000	sqft
CY2024Q3	opi	Operating Leases Committed Expenditures On Leases Executed In Period Committed But Unspent Tenant Related Obligations OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriodCommittedButUnspentTenantRelatedObligations	100646000	usd
CY2024Q3	us-gaap	Impairment Charge On Reclassified Assets ImpairmentChargeOnReclassifiedAssets	2573000	usd
CY2024Q3	opi	Number Of Joint Ventures NumberOfJointVentures	1	joint_venture
	us-gaap	Revenue Recognition Leases RevenueRecognitionLeases	<div style="margin-bottom:10pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Our leases provide for base rent payments and, in addition, may include variable payments. Rental income from operating leases, including any payments derived by index or market-based indices, is recognized on a straight line basis over the lease term once we have determined that the collectability of substantially all of the lease payments is probable. Some of our leases have options to extend or terminate the lease exercisable at the option of our tenants, which are considered when determining </span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">the lease term. Allowances for bad debts are recognized as a direct reduction of rental income. In certain circumstances, some leases provide the tenant with the right to terminate if the legislature or other funding authority does not appropriate the funding necessary for the tenant to meet its lease obligations; we have determined the fixed non-cancelable lease term of these leases to be the full term of the lease because we believe the occurrence of early terminations to be a remote contingency based on both our historical experience and our assessments of the likelihood of lease cancellation on a separate lease basis.</span></div>
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	49444000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	48365000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	48365000	shares
CY2024Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.14
CY2024Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.14
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.41
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.41
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.25
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.25
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.67
CY2024Q3	opi	Operating Leases Committed Expenditures On Leases Executed In Period Area Of Leased Property OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriodAreaOfLeasedProperty	987000	sqft
	opi	Number Of Operating Lease Executed NumberOfOperatingLeaseExecuted	39	lease
	opi	Operating Leases Committed Expenditures On Leases Executed In Period Area Of Leased Property OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriodAreaOfLeasedProperty	1683000	sqft
	opi	Operating Leases Weighted Average Lease Term OperatingLeasesWeightedAverageLeaseTerm	P9Y1M6D
	opi	Operating Leases Committed Expenditures On Leases Executed In Period OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriod	80875000	usd
CY2024Q3	opi	Operating Leases Committed Expenditures On Leases Executed In Period Committed But Unspent Tenant Related Obligations OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriodCommittedButUnspentTenantRelatedObligations	100646000	usd
CY2024Q3	us-gaap	Impairment Charge On Reclassified Assets ImpairmentChargeOnReclassifiedAssets	2573000	usd
	us-gaap	Revenue Recognition Leases RevenueRecognitionLeases	<div style="margin-bottom:10pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Our leases provide for base rent payments and, in addition, may include variable payments. Rental income from operating leases, including any payments derived by index or market-based indices, is recognized on a straight line basis over the lease term once we have determined that the collectability of substantially all of the lease payments is probable. Some of our leases have options to extend or terminate the lease exercisable at the option of our tenants, which are considered when determining </span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">the lease term. Allowances for bad debts are recognized as a direct reduction of rental income. In certain circumstances, some leases provide the tenant with the right to terminate if the legislature or other funding authority does not appropriate the funding necessary for the tenant to meet its lease obligations; we have determined the fixed non-cancelable lease term of these leases to be the full term of the lease because we believe the occurrence of early terminations to be a remote contingency based on both our historical experience and our assessments of the likelihood of lease cancellation on a separate lease basis.</span></div>
CY2024Q3	us-gaap	Straight Line Rent Adjustments StraightLineRentAdjustments	8854000	usd
CY2023Q3	us-gaap	Straight Line Rent Adjustments StraightLineRentAdjustments	8691000	usd
	us-gaap	Straight Line Rent Adjustments StraightLineRentAdjustments	23796000	usd
	us-gaap	Straight Line Rent Adjustments StraightLineRentAdjustments	17120000	usd
CY2024Q3	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	134218000	usd
CY2023Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	112440000	usd
CY2024Q3	us-gaap	Variable Lease Income VariableLeaseIncome	22291000	usd
	us-gaap	Variable Lease Income VariableLeaseIncome	65120000	usd
CY2024Q3	opi	Tenant Reimbursement Income TenantReimbursementIncome	21271000	usd
	opi	Tenant Reimbursement Income TenantReimbursementIncome	61667000	usd
CY2023Q3	us-gaap	Variable Lease Income VariableLeaseIncome	21067000	usd
CY2023Q3	opi	Tenant Reimbursement Income TenantReimbursementIncome	19722000	usd
	opi	Tenant Reimbursement Income TenantReimbursementIncome	60641000	usd
	opi	Number Of Operating Lease Executed NumberOfOperatingLeaseExecuted	39	lease
	opi	Operating Leases Committed Expenditures On Leases Executed In Period Area Of Leased Property OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriodAreaOfLeasedProperty	1683000	sqft
	opi	Operating Leases Weighted Average Lease Term OperatingLeasesWeightedAverageLeaseTerm	P9Y1M6D
	opi	Operating Leases Committed Expenditures On Leases Executed In Period OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriod	80875000	usd
CY2024Q3	opi	Operating Leases Committed Expenditures On Leases Executed In Period Committed But Unspent Tenant Related Obligations OperatingLeasesCommittedExpendituresOnLeasesExecutedInPeriodCommittedButUnspentTenantRelatedObligations	100646000	usd
CY2024Q3	us-gaap	Impairment Charge On Reclassified Assets ImpairmentChargeOnReclassifiedAssets	2573000	usd
CY2024Q3	opi	Number Of Joint Ventures NumberOfJointVentures	1	joint_venture
	us-gaap	Revenue Recognition Leases RevenueRecognitionLeases	<div style="margin-bottom:10pt;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Our leases provide for base rent payments and, in addition, may include variable payments. Rental income from operating leases, including any payments derived by index or market-based indices, is recognized on a straight line basis over the lease term once we have determined that the collectability of substantially all of the lease payments is probable. Some of our leases have options to extend or terminate the lease exercisable at the option of our tenants, which are considered when determining </span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">the lease term. Allowances for bad debts are recognized as a direct reduction of rental income. In certain circumstances, some leases provide the tenant with the right to terminate if the legislature or other funding authority does not appropriate the funding necessary for the tenant to meet its lease obligations; we have determined the fixed non-cancelable lease term of these leases to be the full term of the lease because we believe the occurrence of early terminations to be a remote contingency based on both our historical experience and our assessments of the likelihood of lease cancellation on a separate lease basis.</span></div>
CY2024Q3	us-gaap	Straight Line Rent Adjustments StraightLineRentAdjustments	8854000	usd
CY2023Q3	us-gaap	Straight Line Rent Adjustments StraightLineRentAdjustments	8691000	usd
	us-gaap	Straight Line Rent Adjustments StraightLineRentAdjustments	23796000	usd
CY2024Q3	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	134218000	usd
CY2023Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	112440000	usd
CY2024Q3	us-gaap	Variable Lease Income VariableLeaseIncome	22291000	usd
	us-gaap	Variable Lease Income VariableLeaseIncome	65120000	usd
CY2024Q3	opi	Tenant Reimbursement Income TenantReimbursementIncome	21271000	usd
	opi	Tenant Reimbursement Income TenantReimbursementIncome	61667000	usd
CY2023Q3	us-gaap	Variable Lease Income VariableLeaseIncome	21067000	usd
	us-gaap	Variable Lease Income VariableLeaseIncome	64627000	usd
CY2024Q3	us-gaap	Straight Line Rent Adjustments StraightLineRentAdjustments	8854000	usd
CY2023Q3	us-gaap	Straight Line Rent Adjustments StraightLineRentAdjustments	8691000	usd
	us-gaap	Straight Line Rent Adjustments StraightLineRentAdjustments	23796000	usd
	us-gaap	Straight Line Rent Adjustments StraightLineRentAdjustments	17120000	usd
CY2024Q3	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	134218000	usd
CY2023Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	112440000	usd
CY2024Q3	us-gaap	Variable Lease Income VariableLeaseIncome	22291000	usd
	us-gaap	Variable Lease Income VariableLeaseIncome	65120000	usd
CY2024Q3	opi	Tenant Reimbursement Income TenantReimbursementIncome	21271000	usd
	opi	Tenant Reimbursement Income TenantReimbursementIncome	61667000	usd
CY2023Q3	us-gaap	Variable Lease Income VariableLeaseIncome	21067000	usd
	us-gaap	Variable Lease Income VariableLeaseIncome	64627000	usd
CY2023Q3	opi	Tenant Reimbursement Income TenantReimbursementIncome	19722000	usd
	opi	Tenant Reimbursement Income TenantReimbursementIncome	60641000	usd
CY2024Q2	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	567429000	usd
CY2024Q2	us-gaap	Debt Conversion Converted Instrument Rate DebtConversionConvertedInstrumentRate	0.09000
CY2024Q2	us-gaap	Debt Conversion Original Debt Amount1 DebtConversionOriginalDebtAmount1	865219000	usd
CY2024Q2	us-gaap	Debt Conversion Original Debt Amount1 DebtConversionOriginalDebtAmount1	865219000	usd
CY2024Q2	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	567429000	usd
	us-gaap	Impairment Charge On Reclassified Assets ImpairmentChargeOnReclassifiedAssets	14590000	usd
CY2024Q3	opi	Number Of Real Estate Properties With Impairment Reclassified From Held For Sale NumberOfRealEstatePropertiesWithImpairmentReclassifiedFromHeldForSale	1	property
CY2024Q2	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	1406952	shares
CY2024Q2	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	2.26
CY2024Q2	opi	Number Of Trustees NumberOfTrustees	9	trustee
CY2024Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	11627	shares
CY2024Q2	us-gaap	Share Price SharePrice	2.15
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	544555	shares
CY2024Q3	us-gaap	Share Price SharePrice	2.13
CY2024Q3	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	76642	shares
	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	85016	shares
CY2024Q3	opi	Stock Repurchased During Period Price Per Share StockRepurchasedDuringPeriodPricePerShare	2.22
	opi	Stock Repurchased During Period Price Per Share StockRepurchasedDuringPeriodPricePerShare	2.25
CY2024Q2	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	567429000	usd
CY2024Q2	us-gaap	Debt Conversion Converted Instrument Rate DebtConversionConvertedInstrumentRate	0.09000
CY2024Q2	us-gaap	Debt Conversion Original Debt Amount1 DebtConversionOriginalDebtAmount1	865219000	usd
CY2024Q2	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	567429000	usd
	us-gaap	Impairment Charge On Reclassified Assets ImpairmentChargeOnReclassifiedAssets	14590000	usd
CY2024Q3	opi	Number Of Real Estate Properties With Impairment Reclassified From Held For Sale NumberOfRealEstatePropertiesWithImpairmentReclassifiedFromHeldForSale	1	property
CY2024Q2	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	1406952	shares
CY2024Q2	us-gaap	Share Price SharePrice	2.15
CY2024Q3	us-gaap	Share Price SharePrice	2.13
	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	85016	shares
CY2024Q3	opi	Stock Repurchased During Period Price Per Share StockRepurchasedDuringPeriodPricePerShare	2.22
	opi	Stock Repurchased During Period Price Per Share StockRepurchasedDuringPeriodPricePerShare	2.25
CY2024Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.01
CY2024Q1	us-gaap	Dividends Common Stock DividendsCommonStock	487000	usd
CY2024Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.01
CY2024Q2	us-gaap	Dividends Common Stock DividendsCommonStock	488000	usd
CY2024Q2	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	567429000	usd
CY2024Q2	us-gaap	Debt Conversion Converted Instrument Rate DebtConversionConvertedInstrumentRate	0.09000
CY2024Q2	us-gaap	Debt Conversion Original Debt Amount1 DebtConversionOriginalDebtAmount1	865219000	usd
CY2024Q2	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	567429000	usd
	us-gaap	Impairment Charge On Reclassified Assets ImpairmentChargeOnReclassifiedAssets	14590000	usd
CY2024Q3	opi	Number Of Real Estate Properties With Impairment Reclassified From Held For Sale NumberOfRealEstatePropertiesWithImpairmentReclassifiedFromHeldForSale	1	property
CY2024Q2	us-gaap	Share Price SharePrice	2.15
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	544555	shares
CY2024Q3	us-gaap	Share Price SharePrice	2.13
CY2024Q3	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	76642	shares
	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	85016	shares
CY2024Q3	opi	Stock Repurchased During Period Price Per Share StockRepurchasedDuringPeriodPricePerShare	2.22
CY2024Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.01
CY2024Q1	us-gaap	Dividends Common Stock DividendsCommonStock	487000	usd
CY2024Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.01
CY2024Q2	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	567429000	usd
CY2024Q2	us-gaap	Debt Conversion Converted Instrument Rate DebtConversionConvertedInstrumentRate	0.09000
CY2024Q2	us-gaap	Debt Conversion Original Debt Amount1 DebtConversionOriginalDebtAmount1	865219000	usd
	us-gaap	Impairment Charge On Reclassified Assets ImpairmentChargeOnReclassifiedAssets	14590000	usd
CY2024Q3	opi	Number Of Real Estate Properties With Impairment Reclassified From Held For Sale NumberOfRealEstatePropertiesWithImpairmentReclassifiedFromHeldForSale	1	property
CY2024Q2	us-gaap	Share Price SharePrice	2.15
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	544555	shares
CY2024Q3	us-gaap	Share Price SharePrice	2.13
CY2024Q3	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	76642	shares
	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	85016	shares
CY2024Q3	opi	Stock Repurchased During Period Price Per Share StockRepurchasedDuringPeriodPricePerShare	2.22
	opi	Stock Repurchased During Period Price Per Share StockRepurchasedDuringPeriodPricePerShare	2.25
CY2024Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.01
CY2024Q1	us-gaap	Dividends Common Stock DividendsCommonStock	487000	usd
CY2024Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.01
CY2024Q3	us-gaap	Dividends Common Stock DividendsCommonStock	502000	usd
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.03
	us-gaap	Dividends Common Stock DividendsCommonStock	1477000	usd
CY2024Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.01
CY2024Q1	us-gaap	Dividends Common Stock DividendsCommonStock	487000	usd
CY2024Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.01
CY2024Q2	us-gaap	Dividends Common Stock DividendsCommonStock	488000	usd
CY2024Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.01
CY2024Q3	us-gaap	Dividends Common Stock DividendsCommonStock	502000	usd
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.03
CY2024Q2	us-gaap	Dividends Common Stock DividendsCommonStock	488000	usd
CY2024Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.01
CY2024Q3	us-gaap	Dividends Common Stock DividendsCommonStock	502000	usd
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.03
	us-gaap	Dividends Common Stock DividendsCommonStock	1477000	usd
CY2024Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.01
CY2024Q3	us-gaap	Dividends Common Stock DividendsCommonStock	502000	usd

Files In Submission

Name	View Source	Status
FilingSummary.xml	Edgar Link	unprocessable
opi-20240930_pre.xml	Edgar Link	unprocessable
0001456772-24-000052-index-headers.html	Edgar Link	pending
0001456772-24-000052-index.html	Edgar Link	pending
0001456772-24-000052.txt	Edgar Link	pending
0001456772-24-000052-xbrl.zip	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
opi-20240930.htm	Edgar Link	pending
opi-20240930.xsd	Edgar Link	pending
opi-20240930_cal.xml	Edgar Link	unprocessable
opi-20240930_def.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
opi-20240930_lab.xml	Edgar Link	unprocessable
opi-20240930_htm.xml	Edgar Link	completed
opi_93024x10qex311.htm	Edgar Link	pending
opi_93024x10qex312.htm	Edgar Link	pending
opi_93024x10qex313.htm	Edgar Link	pending
opi_93024x10qex314.htm	Edgar Link	pending
opi_93024x10qex321.htm	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
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R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
opi-20240930_pre.xml	Edgar Link	unprocessable
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
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R5.htm	Edgar Link	pending
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R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
0001456772-24-000052-index-headers.html	Edgar Link	pending
0001456772-24-000052-index.html	Edgar Link	pending
0001456772-24-000052.txt	Edgar Link	pending
0001456772-24-000052-xbrl.zip	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
opi-20240930.htm	Edgar Link	pending
opi-20240930.xsd	Edgar Link	pending
opi_93024x10qex311.htm	Edgar Link	pending
opi_93024x10qex312.htm	Edgar Link	pending
opi_93024x10qex313.htm	Edgar Link	pending
opi_93024x10qex314.htm	Edgar Link	pending
opi_93024x10qex321.htm	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
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R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
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R38.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
opi-20240930_cal.xml	Edgar Link	unprocessable
opi-20240930_def.xml	Edgar Link	unprocessable
opi-20240930_lab.xml	Edgar Link	unprocessable
opi-20240930_htm.xml	Edgar Link	completed
R6.htm	Edgar Link	pending
R7.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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$OPI
OFFICE PROPERTIES INCOME TRUST Stock $opi

2024 Q4 Form 10-Q Financial Statement

#000145677224000052 Filed on October 30, 2024

Income Statement

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Cashflow Statement

Facts In Submission

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$OPI OFFICE PROPERTIES INCOME TRUST Stock $opi

2024 Q4 Form 10-Q Financial Statement

#000145677224000052 Filed on October 30, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$OPI
OFFICE PROPERTIES INCOME TRUST Stock $opi