Earnings Per Share/Unit - Calculation of Earnings Per Share (Detail) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net loss	$ (118,016)	$ (875,377)
Non-controlling interests' share in net income	(259)	(248)
Participating securities’ share in earnings	(117)	0
Net loss, less participating securities' share in earnings	$ (118,392)	$ (875,625)
Basic weighted-average common shares	600,594	600,304
Dilutive potential common shares	0	0
Diluted weighted-average common shares	600,594	600,304
MPT Operating Partnership, L.P. [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net loss	$ (118,016)	$ (875,377)
Non-controlling interests' share in net income	(259)	(248)
Participating securities’ share in earnings	(117)	0
Net loss, less participating securities' share in earnings	$ (118,392)	$ (875,625)
Basic weighted-average common shares	600,594	600,304
Dilutive potential common shares	0	0
Diluted weighted-average common shares	600,594	600,304