Earnings Per Share/Unit - Calculation of Earnings Per Share (Detail) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net (loss) income	$ (556,092)	$ 903,819	$ 656,940
Non-controlling interests’ share in earnings	(384)	(1,222)	(919)
Participating securities’ share in earnings	(1,644)	(1,602)	(2,161)
Net (loss) income, less participating securities' share in earnings	$ (558,120)	$ 900,995	$ 653,860
Basic weighted-average common shares	598,518	598,634	588,817
Dilutive potential common shares		203	1,322
Diluted weighted-average common shares	598,518	598,837	590,139
MPT Operating Partnership, L.P. [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net (loss) income	$ (556,092)	$ 903,819	$ 656,940
Non-controlling interests’ share in earnings	(384)	(1,222)	(919)
Participating securities’ share in earnings	(1,644)	(1,602)	(2,161)
Net (loss) income, less participating securities' share in earnings	$ (558,120)	$ 900,995	$ 653,860
Basic weighted-average common shares	598,518	598,634	588,817
Dilutive potential common shares		203	1,322
Diluted weighted-average common shares	598,518	598,837	590,139