Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2021	Dec. 31, 2020
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	750,000,000	750,000,000
Common stock, shares issued	596,145,000	541,419,000
Common stock, shares outstanding	596,145,000	541,419,000
General Partner [Member] \| MPT Operating Partnership, L.P. [Member]
General partner, units issued	5,962,000	5,414,000
General partner, units outstanding	5,962,000	5,414,000
Common Units \| MPT Operating Partnership, L.P. [Member]
Limited Partners, units issued	590,183,000	536,005,000
Limited Partners, units outstanding	590,183,000	536,005,000

Face amount or stated value per share of common stock.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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