Condensed Consolidated Statements of Equity / Capital (Parenthetical) - $ / shares	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Dividends (Distributions) declared per common share / unit	$ 0.28			$ 0.27			$ 0.84	$ 0.81
MPT Operating Partnership, L.P. [Member]
Dividends (Distributions) declared per common share / unit	0.28	$ 0.28	$ 0.28	0.27	$ 0.27	$ 0.27	$ 0.84	$ 0.81
MPT Operating Partnership, L.P. [Member] | General Partner [Member]
Dividends (Distributions) declared per common share / unit	0.28	0.28	0.28	0.27	0.27	0.27
Retained Earnings (Deficit) [Member]
Dividends (Distributions) declared per common share / unit	0.28	0.28	0.28	0.27	0.27	0.27
Common Par Value [Member] | MPT Operating Partnership, L.P. [Member] | Limited Partner [Member]
Dividends (Distributions) declared per common share / unit	$ 0.28	$ 0.28	$ 0.28	$ 0.27	$ 0.27	$ 0.27