Earnings Per Share/Unit - Calculation of Earnings Per Share (Detail) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net (loss) income	$ (275,937)	$ (2,408,287)	$ (556,092)
Non-controlling interests’ share in earnings	(1,112)	(1,984)	(384)
Participating securities’ share in earnings	(889)	(946)	(1,644)
Net loss, less participating securities' share in earnings	$ (277,938)	$ (2,411,217)	$ (558,120)
Basic weighted-average common shares	600,892	600,248	598,518
Dilutive potential common shares	0	0	0
Diluted weighted-average common shares	600,892	600,248	598,518
MPT Operating Partnership, L.P. [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net (loss) income	$ (275,937)	$ (2,408,287)	$ (556,092)
Non-controlling interests’ share in earnings	(1,112)	(1,984)	(384)
Participating securities’ share in earnings	(889)	(946)	(1,644)
Net loss, less participating securities' share in earnings	$ (277,938)	$ (2,411,217)	$ (558,120)
Basic weighted-average common shares	600,892	600,248	598,518
Dilutive potential common shares	0	0	0
Diluted weighted-average common shares	600,892	600,248	598,518