Condensed Consolidated Statements of Equity / Capital (Parenthetical) - $ / shares	3 Months Ended						9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Dividends (Distributions) declared per common share / unit	$ 0.26	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.76	$ 0.75
MPT Operating Partnership, L.P. [Member]
Dividends (Distributions) declared per common share / unit	0.26	0.25	0.25	0.25	0.25	0.25	$ 0.76	$ 0.75
MPT Operating Partnership, L.P. [Member] | General Partner [Member]
Dividends (Distributions) declared per common share / unit	0.26	0.25	0.25	0.25	0.25	0.25
Retained Earnings (Deficit) [Member]
Dividends (Distributions) declared per common share / unit	0.26	0.25	0.25	0.25	0.25	0.25
Common Par Value [Member] | MPT Operating Partnership, L.P. [Member] | Limited Partner [Member]
Dividends (Distributions) declared per common share / unit	$ 0.26	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.25