|
Common Stock/Partners' Capital - Additional Information (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified |
3 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | |||||
|---|---|---|---|---|---|---|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
Dec. 31, 2012
|
Mar. 31, 2013
MPT Operating Partnership, L.P.
|
Mar. 31, 2012
MPT Operating Partnership, L.P.
|
Mar. 31, 2013
MPT Operating Partnership, L.P.
Employee
|
Mar. 31, 2013
MPT Operating Partnership, L.P.
Director
|
Feb. 07, 2012
Public Offering
|
Mar. 31, 2013
Public Offering
|
|
| Class of Stock [Line Items] | |||||||||
| Common stock, shares issued | 149,141,000 | 136,335,000 | 23,575,000 | 12,650,000 | |||||
| Underwriters' purchase of shares to cover additional shares | 1,650,000 | ||||||||
| Public offering price for common stock per share | $ 9.75 | $ 14.25 | |||||||
| Proceeds from issuance of common stock | $ 172,914 | $ 220,193 | $ 172,914 | $ 220,193 | $ 220,193 | $ 172,914 | |||
| Underwriters' purchase of shares to additional shares | 3,075,000 | ||||||||
| Ownership interest in equity | 99.80% | ||||||||
| Number of other partners | 3 | ||||||||
| Number of partners shared remaining ownership percentage | 2 | 1 | |||||||
| Units issued | 12,650,000 | 23,575,000 | |||||||