Capital Expenditure Funding Capacity

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Consolidated Income Available To Debt Ratio

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Debt Instrument, Amount Redeemed

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Minimum Liquidity Requirement Amount

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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The average effective interest rate during the reporting period.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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Amount of accumulated amortization of right-of-use asset from finance lease.

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Amount, before accumulated amortization, of right-of-use asset from finance lease.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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The effective interest rate at the end of the reporting period.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The number of real estate properties owned as of the balance sheet date.

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Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Indebtedness (Details)	1 Months Ended						3 Months Ended		9 Months Ended
Indebtedness (Details)	Jan. 31, 2023 USD ($)	Oct. 31, 2022 USD ($) property	Jul. 31, 2022 USD ($) property	Jun. 30, 2022 USD ($)	Apr. 30, 2022 USD ($) property	Feb. 28, 2022 USD ($)	Sep. 30, 2022 USD ($) property	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) property	Sep. 30, 2021 USD ($)	Jan. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Indebtedness
Number of properties (property) \| property							379		379
Total real estate properties, gross							$ 6,596,866,000		$ 6,596,866,000			$ 6,813,556,000
Repayments of lines of credit									100,000,000	$ 0
Gain (loss) on extinguishment of debt							0	$ 0	(30,043,000)	$ (2,410,000)
Accrued interest							$ 32,157,000		$ 32,157,000			29,845,000
Debt ratio							150.00%		150.00%
Finance Leased Properties
Indebtedness
Number of properties (property) \| property							2		2
Finance lease obligations							$ 5,562,000		$ 5,562,000
Finance leased asset, gross							38,697,000		38,697,000			36,730,000
Finance leased asset, accumulated depreciation							18,839,000		18,839,000			$ 18,203,000
Unsecured Debt
Indebtedness
Debt face amount							2,350,000,000		2,350,000,000
Unsecured Revolving Credit Facility
Indebtedness
Unsecured revolving credit facility, maximum borrowing capacity						$ 700,000,000	$ 700,000,000		$ 700,000,000		$ 800,000,000
Revolving credit facility, interest rate payable (as a percent)							5.60%		5.60%
Debt instrument, facility fee (as a percent)									0.30%
Weighted average interest rate on debt (as a percent)							4.80%	2.90%	3.80%	2.90%
Repayments of lines of credit						100,000,000
Gain (loss) on extinguishment of debt									$ (483,000)
Capital expenditure						400,000,000
Minimum liquidity requirement						$ 200,000,000
Unsecured Revolving Credit Facility \| Forecast
Indebtedness
Unsecured revolving credit facility, maximum borrowing capacity	$ 586,373,000
Repayments of lines of credit	$ 113,627,000
Unsecured Revolving Credit Facility \| LIBOR
Indebtedness
Basis points per annum (as a percent)									2.50%
Unsecured Revolving Credit Facility \| Revolving Credit Facility \| LIBOR
Indebtedness
Basis points per annum (as a percent)						0.15%
Unsecured Revolving Credit Facility \| Medical Office And Life Science
Indebtedness
Number of properties (property) \| property							61		61
Total real estate properties, gross							$ 997,724,000		$ 997,724,000
Mortgages
Indebtedness
Aggregate principal amount of mortgage debt							$ 35,200,000		$ 35,200,000
Number of properties (property) \| property							3		3
Total real estate properties, gross							$ 65,957,000		$ 65,957,000
Mortgages 6.28 Percent Due July 2022 \| Medical Office Building
Indebtedness
Number of properties (property) \| property					1
Repayments of debt					$ 10,934,000
Coupon rate (percent)					6.28%
Mortgages 6.28 Percent Due July 2022 \| Senior Living Communities
Indebtedness
Number of properties (property) \| property			2
Repayments of debt			$ 15,273,000
Coupon rate (percent)			5.75%
Senior Unsecured Note Due 2022
Indebtedness
Gain (loss) on extinguishment of debt									$ (29,576,000)
Coupon rate (percent)				9.75%
Debt instrument, amount redeemed				$ 500,000,000
Redemption price (as a percent)				104.875%
Accrued interest				$ 1,083,000
Mortgages 4.85 Percent Matured In October 2022 \| Life Science Property \| Subsequent Event
Indebtedness
Number of properties (property) \| property		1
Repayments of debt		$ 10,287,000
Coupon rate (percent)		4.85%