Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest paid, capitalized	$ 840	$ 2,320	$ 1,425
MPT Operating Partnership, L.P. [Member]
Interest paid, capitalized	$ 840	$ 2,320	$ 1,425