Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013 General Partner MPT Operating Partnership, L.P.	Dec. 31, 2012 General Partner MPT Operating Partnership, L.P.	Sep. 30, 2013 Common Units MPT Operating Partnership, L.P.	Dec. 31, 2012 Common Units MPT Operating Partnership, L.P.	Sep. 30, 2013 LTIP Units MPT Operating Partnership, L.P.	Dec. 31, 2012 LTIP Units MPT Operating Partnership, L.P.
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares outstanding
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	160,880,000	136,335,000
Common stock, shares outstanding	160,880,000	136,335,000
General partner, units issued			1,603,000	1,357,000
General partner, units outstanding			1,603,000	1,357,000
Limited Partners, units issued					159,277,000	134,978,000
Limited Partners, units outstanding					159,277,000	134,978,000
LTIP Units, shares issued							221,000	221,000
LTIP Units, shares outstanding							221,000	221,000