Reconciliation of Real Estate Properties and Accumulated Depreciation (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022		Dec. 31, 2021	Dec. 31, 2020
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]
Beginning balance		$ 663,733		$ 660,449	$ 627,395
Impact of consolidation of an LP	[1]			19,771
Additions	[2]	22,555		11,346	31,145
Acquisitions		11,802		12,071	1,919
Disposals/Divestitures	[3]	(121)		(39,904)	(10)
Ending balance		697,969	[4]	663,733	660,449
Beginning balance		225,584		216,648	194,888
Impact of consolidation of an LP	[1]			4,847
Disposals/Divestitures	[3]	(121)		(19,796)	(10)
Depreciation expense		23,309		23,885	21,770
Ending balance		$ 248,772		$ 225,584	$ 216,648

[1] During the fourth quarter of 2021, we purchased the 5% minority ownership interest held by a third-party member in an LP in which we previously held a non-controlling majority ownership interest. As a result of this minority interest purchase, we now own 100% of the LP and the financial results are included in our consolidated financial statements.

[2] Included in the additions for 2022 and 2021 are approximately $18.0 million and $2.9 million related to the construction of a new MOB, which is anticipated to be completed in March, 2023, and is located on the campus of a UHS wholly-owned hospital that was completed and opened in April, 2022. Included in the additions for 2020 are approximately $25.1 million related to the construction of Clive Behavioral Health, located in Clive, Iowa, for which construction was substantially completed in December 2020.

[3] 2021 includes the sale of the Auburn Medical Office Building II, the sale of the Children’s Clinic at Springdale as well as the exchange of Inland Valley Campus of Southwest Healthcare System, located in Wildomar, CA.

[4] The aggregate cost for federal income tax purposes is $681 million (unaudited) with a net book value of $406 million (unaudited).