Consolidated Statements of Equity / Capital - USD ($) shares in Thousands, $ in Thousands	Total	MPT Operating Partnership, L.P. [Member]	MPT Operating Partnership, L.P. [Member] General Partner [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] MPT Operating Partnership, L.P. [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] MPT Operating Partnership, L.P. [Member] General Partner [Member]	Common Par Value [Member]	Common Par Value [Member] MPT Operating Partnership, L.P. [Member] Limited Partner [Member]	Common Par Value [Member] Cumulative Effect, Period of Adoption, Adjustment [Member] MPT Operating Partnership, L.P. [Member] Limited Partner [Member]	Additional Paid-in Capital [Member]	Retained Earnings (Deficit) [Member]	Retained Earnings (Deficit) [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Other Comprehensive Loss [Member] MPT Operating Partnership, L.P. [Member]	Treasury Shares [Member]	Non-Controlling Interests [Member]	Non-Controlling Interests [Member] MPT Operating Partnership, L.P. [Member]	Long Term Incentive Plan [Member] MPT Operating Partnership, L.P. [Member] Limited Partner [Member]
Beginning balance at Dec. 31, 2018	$ 4,560,938	$ 4,561,328	$ 46,084				$ 371	$ 4,559,616		$ 4,442,948	$ 162,768		$ (58,202)	$ (58,202)	$ (777)	$ 13,830	$ 13,830
Beginning balance (in shares) at Dec. 31, 2018			3,706				370,637	366,931										232
Net income	376,401	376,401	$ 3,746					$ 370,938			374,684					1,717	1,717
Unrealized gain (loss) on interest rate swaps, net of tax	(9,033)	(9,033)											(9,033)	(9,033)
Foreign currency translation gain (loss)	4,330	4,330											4,330	4,330
Stock vesting and amortization of stock-based compensation	32,188	32,188	$ 322				$ 2	$ 31,866		32,186
Stock (Unit) vesting and amortization of stock (unit)-based compensation (shares)			15				1,536	1,521
Distributions to non-controlling interests, net	(15,440)	(15,440)														(15,440)	(15,440)
Proceeds from offering (net of offering costs)	2,533,210	2,533,210	$ 25,332				$ 145	$ 2,507,878		2,533,065
Proceeds from offering (net of offering costs) (shares)			1,455				145,349	143,894
Dividends (Distributions) declared	(454,440)	(454,440)	$ (4,545)					$ (449,895)			(454,440)
Ending balance at Dec. 31, 2019	7,028,154	7,028,544	$ 70,939				$ 518	$ 7,020,403		7,008,199	83,012		(62,905)	(62,905)	(777)	107	107
Ending balance (Accounting Standards Update 2016-13) at Dec. 31, 2019					$ (8,399)	$ (84)			$ (8,315)
Ending balance (in shares) at Dec. 31, 2019			5,176				517,522	512,346										232
Net income	432,272	432,272	$ 4,315					$ 427,135			431,450					822	822
Unrealized gain (loss) on interest rate swaps, net of tax	(33,091)	(33,091)											(33,091)	(33,091)
Foreign currency translation gain (loss)	44,672	44,672											44,672	44,672
Stock vesting and amortization of stock-based compensation	47,154	47,154	$ 472				$ 2	$ 46,682		47,152
Stock (Unit) vesting and amortization of stock (unit)-based compensation (shares)			29				2,893	2,864
Sale of non-controlling interests	5,097	5,097														5,097	5,097
Redemption of MOP units	(4,928)	(4,928)						$ (4,928)		(4,928)
Redemption of common units (shares)								(232)
Conversion of LTIP units to common units (shares)								232										(232)
Distributions to non-controlling interests, net	(701)	(701)														(701)	(701)
Proceeds from offering (net of offering costs)	411,101	411,101	$ 4,111				$ 21	$ 406,990		411,080
Proceeds from offering (net of offering costs) (shares)			209				21,004	20,795
Dividends (Distributions) declared	(577,474)	(577,474)	$ (5,776)					$ (571,698)			(577,474)
Ending balance at Dec. 31, 2020	7,343,857	7,344,247	$ 73,977				$ 541	$ 7,316,269		7,461,503	(71,411)		(51,324)	(51,324)	(777)	5,325	5,325
Ending balance (Accounting Standards Update 2016-02) at Dec. 31, 2020				$ (8,399)								$ (8,399)
Ending balance (in shares) at Dec. 31, 2020			5,414				541,419	536,005
Net income	656,940	656,940	$ 6,560					$ 649,461			656,021					919	919
Unrealized gain (loss) on interest rate swaps, net of tax	52,288	52,288											52,288	52,288
Foreign currency translation gain (loss)	(37,691)	(37,691)											(37,691)	(37,691)
Stock vesting and amortization of stock-based compensation	52,110	52,110	$ 521				$ 3	$ 51,589		52,107
Stock (Unit) vesting and amortization of stock (unit)-based compensation (shares)			23				2,332	2,309
Distributions to non-controlling interests, net	(761)	(761)														(761)	(761)
Proceeds from offering (net of offering costs)	1,051,229	1,051,229	$ 10,512				$ 53	$ 1,040,717		1,051,176
Proceeds from offering (net of offering costs) (shares)			531				53,063	52,532
Dividends (Distributions) declared	(672,301)	(672,301)	$ (6,723)					$ (665,578)			(672,301)
Ending balance at Dec. 31, 2021	$ 8,445,671	$ 8,446,061	$ 84,847				$ 597	$ 8,392,458		$ 8,564,786	$ (87,691)		$ (36,727)	$ (36,727)	$ (777)	$ 5,483	$ 5,483
Ending balance (in shares) at Dec. 31, 2021			5,968				596,814	590,846