Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2015	Dec. 31, 2014
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	207,804,000	172,743,000
Common stock, shares outstanding	207,804,000	172,743,000
General Partner [Member] | MPT Operating Partnership, L.P. [Member]
General partner, units issued	2,073,000	1,722,000
General partner, units outstanding	2,073,000	1,722,000
LTIP Units [Member] | MPT Operating Partnership, L.P. [Member]
LTIP Units, shares issued	292,000	292,000
LTIP Units, shares outstanding	292,000	292,000
Common Units [Member] | MPT Operating Partnership, L.P. [Member]
Limited Partners, units issued	205,731,000	171,021,000
Limited Partners, units outstanding	205,731,000	171,021,000