Relationship with Universal Health Services, Inc. ("UHS") and Related Party Transactions - Additional Information (Detail) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |
Jan. 31, 2022 USD ($) ft² | May 31, 2021 USD ($) | Sep. 30, 2022 USD ($) Hospital Time Lease | Mar. 31, 2022 USD ($) Subsidiary | Sep. 30, 2021 USD ($) Hospital | Sep. 30, 2022 USD ($) Property Subsidiary Hospital Bed Time RenewalOption Lease | Sep. 30, 2021 USD ($) Hospital | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) |
Related Party Transaction [Line Items] | | | | | | | | | | |
Number of bed facility | Bed | | | | | | | 100 | | | |
Annual advisory fee as percentage of average invested real estate assets | | | | 0.70% | | 0.70% | 0.70% | 0.70% | | |
Grayson Properties Member | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Minority ownership interest held by a third-party | | | | | | | | | | 5% |
Ownership percentage upon completion of the minority ownership purchase | | | | | | | | | | 100% |
Minority ownership interest | | | | | | | | | | $ 3,100,000 |
Aiken Regional Medical Center | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Monthly lease rent receivable | | | | | $ 3,900,000 | | | | | |
Canyon Creek Behavioral Health | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Monthly lease rent receivable | | | | | 1,800,000 | | | | | |
Aiken Regional Medical Center and Canyon Creek Behavioral Health | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Fair market value of real estate assets received | | | | | | | $ 83,700,000 | | | 82,400,000 |
Monthly lease rent receivable | | | | | $ 5,700,000 | | | | | |
Aiken Regional Medical Center and Canyon Creek Behavioral Health | Forecast | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Lease payments expected | | | | | | | | | $ 5,500,000 | |
Aiken Regional Medical Center and Canyon Creek Behavioral Health | Southwest Healthcare System Inland Valley Campus | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Lease revenue | | | | | | | | | | 4,500,000 |
Aiken Regional Medical Center and Canyon Creek Behavioral Health | Southwest Healthcare System Inland Valley Campus | Base Rents | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Lease revenue | | | | | | | | | | 2,600,000 |
Aiken Regional Medical Center and Canyon Creek Behavioral Health | Southwest Healthcare System Inland Valley Campus | Bonus Rents | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Lease revenue | | | | | | | | | | $ 1,900,000 |
Universal Health Services Inc | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Percentage of lease guaranteed | | | | | | | 52% | | | |
Lease revenue | [1] | | | $ 7,471,000 | | $ 7,574,000 | $ 22,291,000 | $ 21,971,000 | | |
Number of acute care hospital leased | Hospital | | | | 3 | | 3 | 3 | 3 | | |
Number of behavioral health care hospital leased | Hospital | | | | 3 | | 1 | 3 | 1 | | |
Number of hospital facilities leased | Hospital | | | | | | | 6 | | | |
Number of medical office buildings and free standing emergency departments | Property | | | | | | | 20 | | | |
Option to renew lease, notice period prior to termination date of current term | | | | | | | 90 days | | | |
Period to purchase respective leased facilities at same price after lease terms | | | | | | | 180 days | | | |
Renewal period of respective leased facilities at same price after lease terms | | | | | | | 180 days | | | |
Number of ground leases | Lease | | | | 12 | | | 12 | | | |
Aggregate lease payments for 2022 | | | | $ 508,000 | | | $ 508,000 | | | |
Aggregate lease payments for 2023 | | | | 508,000 | | | 508,000 | | | |
Aggregate lease payments for 2024 | | | | 508,000 | | | 508,000 | | | |
Aggregate lease payments for 2025 | | | | 508,000 | | | 508,000 | | | |
Aggregate lease payments for 2026 | | | | 508,000 | | | 508,000 | | | |
Aggregate lease payments for thereafter | | | | $ 28,000,000 | | | $ 28,000,000 | | | |
Percentage ownership of outstanding shares | | | | 5.70% | | | 5.70% | | | 5.70% |
Universal Health Services Inc | Minimum | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Remaining lease terms on ground leases | | | | | | | 27 years | | | |
Universal Health Services Inc | Maximum | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Remaining lease terms on ground leases | | | | | | | 76 years | | | |
Universal Health Services Inc | Customer Concentration Risk | Revenues | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Percentage of revenues generated from leases and tenants | | | | 27% | | 26% | 27% | 26% | | |
Universal Health Services Inc | Customer Concentration Risk | Revenues | Tenants | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Percentage of revenues generated from leases and tenants | | | | 41% | | 37% | 41% | 36% | | |
Universal Health Services Inc | Base Rents | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Lease revenue | | | | $ 6,102,000 | | $ 5,392,000 | $ 18,303,000 | $ 15,820,000 | | |
Universal Health Services Inc | Bonus Rents | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Lease revenue | | | | $ 727,000 | | 1,828,000 | $ 2,048,000 | 5,171,000 | | |
Universal Health Services Inc | Acute Care Hospitals | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Number of hospitals operating lease terms of existing and renewal options | Hospital | | | | | | | 3 | | | |
Universal Health Services Inc | Behavioral Health Hospitals | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Number of hospitals operating lease terms of existing and renewal options | Hospital | | | | | | | 3 | | | |
Universal Health Services Inc | Wellington Regional Medical Center | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Renewal options term at fair market value lease rates | | | | | | | 5 years | | | |
Renewal options at fair market value lease rates expiration year | | | | | | | 2031 | | | |
Universal Health Services Inc | Clive, Iowa | Clive Behavioral Health | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Option to renew lease, notice period prior to termination date of current term | | | | | | | 270 days | | | |
Initial lease term on property | | | | | | | 20 years | | | |
Lessee operating lease, existence of option to extend | | | | | | | true | | | |
Number of term renewal options | Time | | | | 5 | | | 5 | | | |
Number of lease renewal option exercised | Time | | | | | | | 3 | | | |
Renewal option term | | | | | | | 10 years | | | |
Percentage of annual rental increase on cumulative and compound basis | | | | | | | 2.75% | | | |
Number of additional renewal options at fair market value lease rates | RenewalOption | | | | | | | 2 | | | |
Renewal options term at fair market value lease rates | | | | | | | 10 years | | | |
Period to purchase respective leased facilities prior to end of lease term or renewal terms | | | | | | | 270 days | | | |
Universal Health Services Inc | Clive, Iowa | Clive Behavioral Health | Minimum | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Renewal options at fair market value lease rates expiration year | | | | | | | 2071 | | | |
Universal Health Services Inc | Clive, Iowa | Clive Behavioral Health | Maximum | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Renewal options at fair market value lease rates expiration year | | | | | | | 2090 | | | |
Universal Health Services Inc | Palm Beach, Florida | Wellington Regional Medical Center | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Monthly lease rent receivable | | | | $ 6,300,000 | | | $ 6,300,000 | | | |
Lease revenue | | | | | | | | | | $ 5,500,000 |
Lessee operating lease, existence of option to extend | | | | | | | true | | | |
Percentage of annual rental increase on cumulative and compound basis | | | | | | | 2.50% | | | |
Operating lease renewal term | | | | 5 years | | | 5 years | | | |
Universal Health Services Inc | Palm Beach, Florida | Wellington Regional Medical Center | Base Rents | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Lease revenue | | | | | | | | | | 3,000,000 |
Universal Health Services Inc | Palm Beach, Florida | Wellington Regional Medical Center | Bonus Rents | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Lease revenue | | | | | | | | | | 2,500,000 |
Universal Health Services Inc | Subsidiary | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Number of wholly-owned subsidiaries | Subsidiary | | | | | 2 | | | | | |
Financing receivables | | | | $ 83,700,000 | | | $ 83,700,000 | | | |
Universal Health Services Inc | Subsidiary | Aiken Regional Medical Center and Canyon Creek Behavioral Health | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Financing receivables | | | | | | | | | | $ 82,400,000 |
Universal Health Services Inc | Asset Purchase and Sale Agreement | Subsidiary | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Cash received for sale of real estate asset | | | | | $ 4,100,000 | | | | | |
Universal Health Services Inc | Asset Purchase and Sale Agreement | Subsidiary | Inland Valley Campus of Southwest Healthcare System | Wildomar, California | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Fair market value of real estate asset sold | | | | | 79,600,000 | | | | | |
Universal Health Services Inc | Asset Purchase and Sale Agreement | Subsidiary | Aiken Regional Medical Center | Aiken, South Carolina | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Fair market value of real estate assets received | | | | | 57,700,000 | | | | | |
Universal Health Services Inc | Asset Purchase and Sale Agreement | Subsidiary | Canyon Creek Behavioral Health | Temple, Texas | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Fair market value of real estate assets received | | | | | 26,000,000 | | | | | |
Universal Health Services Inc | Asset Purchase and Sale Agreement | Subsidiary | Aiken Regional Medical Center and Canyon Creek Behavioral Health | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Number of wholly-owned subsidiaries | Subsidiary | | | | | | | 2 | | | |
Fair market value of real estate assets received | | | | | $ 83,700,000 | | | | | |
Universal Health Services Inc | Ground Lease and Master Flex-lease Agreement | Reno, Nevada | Sierra Medical Plaza I | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Rentable square feet | ft² | | 86,000 | | | | | | | | |
Cost of medical office building | | $ 34,600,000 | | | | | | | | |
Cost Of Medical Office Building Incurred | | | | | | | $ 16,900,000 | | | |
Percentage of rentable square feet | | 68% | | | | | | | | |
Universal Health Services Inc | Ground Lease and Master Flex-lease Agreement | Reno, Nevada | Sierra Medical Plaza I | Minimum | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Initial rent | | $ 1,300,000 | | | | | | | | |
Catholic Health Initiatives Iowa | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Percentage of lease guaranteed | | | | | | | 48% | | | |
Fire Mesa Office Building [Member] | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Payment to acquire business | | | $ 12,900,000 | | | | | | | |
Lease percentage | | | 100% | | | | | | | |
Lease expiration date | | | Aug. 31, 2027 | | | | | | | |
Universal Health Services of Delaware Inc | | | | | | | | | | |
Related Party Transaction [Line Items] | | | | | | | | | | |
Advisory fee | | | | $ 1,300,000 | | $ 1,100,000 | $ 3,800,000 | $ 3,300,000 | | |
Cost, Product and Service [Extensible List] | | | | Management Service | | Management Service | Management Service | Management Service | | |
Average invested real estate assets | | | | $ 741,000,000 | | $ 641,000,000 | $ 721,000,000 | $ 623,000,000 | | |
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[1]Includes bonus rental on McAllen Medical Center, a UHS acute care hospital facility of $727 and $2,048 for the three and nine-month periods ended September 30, 2022, respectively, and includes bonus rental on three UHS acute care hospital facilities of $1,828 and $5,171 for the three and nine-month periods ended September 30, 2021, respectively | |