Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2012	Dec. 31, 2011
Equity/Capital
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	134,524,000	110,786,000
Common stock, shares outstanding	134,524,000	110,786,000
MPT Operating Partnership, L.P. [Member]
Equity/Capital
Common stock, shares issued	23,575,000
General Partner, units issued	1,344,000	1,107,000
General Partner, units outstanding	1,344,000	1,107,000
MPT Operating Partnership, L.P. [Member] | Common Units [Member]
Equity/Capital
Limited Partners, units issued	133,180,000	109,679,000
Limited Partners, units outstanding	133,180,000	109,679,000
MPT Operating Partnership, L.P. [Member] | LTIP Units [Member]
Equity/Capital
Limited Partners, units issued	150,000	150,000
Limited Partners, units outstanding	150,000	150,000