Debt and Financial Instruments - Additional Information (Detail)					1 Months Ended			3 Months Ended				6 Months Ended
	Apr. 10, 2024 USD ($)	May 15, 2023 USD ($)	Jul. 02, 2021 USD ($)	Mar. 27, 2018 USD ($) Option	Dec. 31, 2023 USD ($) Derivative	Mar. 31, 2020 USD ($) Derivative	Jan. 31, 2020 USD ($) Derivative	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Sep. 30, 2019 USD ($) Derivative	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)
Debt Instrument [Line Items]
Net borrowings on the line of credit												$ 16,300,000	$ 13,300,000
Credit facility, Interest Rate Terms												Borrowings under the Credit Agreement will bear interest at a rate equal to, at our option, at adjusted term SOFR for either one, three, or six months or the Base Rate, plus in either case, a specified margin depending on our total leverage ratio, as determined by the formula set forth in the Credit Agreement. The applicable margin after the first amendment ranges from 1.10% to 1.35% for adjusted term SOFR loans and 0.10% to 0.35% for Base Rate loans.
Outstanding borrowings under revolving credit agreement					$ 326,600,000			$ 342,900,000				$ 342,900,000
Letters Of Credit Outstanding Amount					3,100,000
Available borrowing capacity					45,300,000			32,100,000				32,100,000
Compensating Balance Amount								0				0
Interest Rate Swap
Debt Instrument [Line Items]
Notional amount					$ 25,000,000
Derivative interest rate cap, payment received or accrued from counterparties								1,600,000		$ 1,400,000		3,300,000	2,600,000
Interest Rate Swap | Cash Flow Hedge
Debt Instrument [Line Items]
Number of interest rate cap agreements | Derivative					1
Derivative instruments, fixed rate					3.9495%
Expiration date of interest rate					Dec. 01, 2027
Interest Rate Swap Agreement One | Cash Flow Hedge
Debt Instrument [Line Items]
Number of interest rate cap agreements | Derivative						1
Derivative instruments, fixed rate						0.565%
Notional amount						$ 55,000,000
Expiration date of interest rate						Mar. 25, 2027
Interest Rate Swap Agreement Two | Cash Flow Hedge
Debt Instrument [Line Items]
Number of interest rate cap agreements | Derivative							1
Derivative instruments, fixed rate							1.4975%
Notional amount							$ 35,000,000
Expiration date of interest rate							Sep. 16, 2024
Interest Rate Swap Agreement Three | Cash Flow Hedge
Debt Instrument [Line Items]
Number of interest rate cap agreements | Derivative											1
Derivative instruments, fixed rate											1.144%
Notional amount											$ 50,000,000
Expiration date of interest rate											Sep. 16, 2024
Level 2
Debt Instrument [Line Items]
Mortgage debt					$ 33,100,000			20,100,000				20,100,000
Mortgage loan fair value					$ 31,200,000			18,400,000				18,400,000
Level 2 | Interest Rate Swap
Debt Instrument [Line Items]
Liability derivatives, fair value								6,400,000				6,400,000
Summerlin Hospital Medical Office Building III Fixed Rate Mortgage Loan
Debt Instrument [Line Items]
Repayment of mortgage loan	$ 12,200,000
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Margin points added to the reference rate		0.10%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Interest Rate Swap | Cash Flow Hedge
Debt Instrument [Line Items]
Derivative instruments, fixed rate					3.9495%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Interest Rate Swap Agreement One | Cash Flow Hedge
Debt Instrument [Line Items]
Derivative instruments, fixed rate		0.505%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Interest Rate Swap Agreement Two | Cash Flow Hedge
Debt Instrument [Line Items]
Derivative instruments, fixed rate		1.41%
Notional amount		$ 35,000,000
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Interest Rate Swap Agreement Three | Cash Flow Hedge
Debt Instrument [Line Items]
Derivative instruments, fixed rate		1.065%
Notional amount		$ 50,000,000
Credit Agreement
Debt Instrument [Line Items]
Outstanding borrowing			$ 350,000,000	$ 375,000,000				375,000,000				375,000,000
Net borrowings on the line of credit			350,000,000	$ 50,000,000
Unsecured revolving amended credit agreement terminated date				Jul. 02, 2025
Increase in borrowing capacity			$ 375,000,000
Number of additional six month extension options | Option				2
Aggregate borrowings under Credit Agreement								25,200,000	$ 14,800,000			47,000,000	34,500,000
Aggregate repayments								$ 15,900,000	$ 11,800,000			$ 30,700,000	$ 21,200,000
Credit Agreement | Swingline/Short-Term Loans
Debt Instrument [Line Items]
Outstanding borrowing				$ 30,000,000
Credit Agreement | Letters of Credit
Debt Instrument [Line Items]
Outstanding borrowing				$ 40,000,000
Revolving A Facility | Minimum
Debt Instrument [Line Items]
Facility fee payable on commitment				0.15%
Revolving A Facility | Minimum | Base Rate
Debt Instrument [Line Items]
Margin points added to the reference rate				0.10%
Revolving A Facility | Minimum | Federal Funds Effective Rate
Debt Instrument [Line Items]
Margin points added to the base rate				0.50%
Revolving A Facility | Minimum | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Margin points added to the reference rate				1.10%
Margin points added to the base rate				1.00%
Revolving A Facility | Maximum
Debt Instrument [Line Items]
Facility fee payable on commitment				0.35%
Revolving A Facility | Maximum | Base Rate
Debt Instrument [Line Items]
Margin points added to the reference rate				0.35%
Revolving A Facility | Maximum | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Margin points added to the reference rate				1.35%
Revolving B Facility | Base Rate
Debt Instrument [Line Items]
Margin points added to the reference rate												0.20%
Revolving B Facility | Federal Funds Effective Rate
Debt Instrument [Line Items]
Facility fee payable on commitment												0.20%
Revolving B Facility | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Margin points added to the reference rate												1.20%