Condensed Consolidating Financial Information - Condensed Consolidated Statements of Comprehensive Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Comprehensive Income (Loss) [Line Items]
Net income	$ 7,307	$ 26,210
Other comprehensive income (loss):
Unrealized gain on interest rate swap	721	827
Foreign currency translation loss	(28)
Total comprehensive income	8,000	27,037
Comprehensive income attributable to non-controlling interests	(66)	(54)
Comprehensive income attributable to MPT common stockholders	7,934	26,983
Parent [Member]
Comprehensive Income (Loss) [Line Items]
Net income	7,307	26,210
Other comprehensive income (loss):
Unrealized gain on interest rate swap	721	827
Foreign currency translation loss	(28)
Total comprehensive income	8,000	27,037
Comprehensive income attributable to non-controlling interests	(66)	(54)
Comprehensive income attributable to MPT common stockholders	7,934	26,983
Subsidiary Issuers [Member]
Comprehensive Income (Loss) [Line Items]
Net income	7,307	26,210
Other comprehensive income (loss):
Unrealized gain on interest rate swap	721	827
Foreign currency translation loss	(28)
Total comprehensive income	8,000	27,037
Comprehensive income attributable to non-controlling interests	(66)	(54)
Comprehensive income attributable to MPT common stockholders	7,934	26,983
Subsidiary Guarantors [Member]
Comprehensive Income (Loss) [Line Items]
Net income	46,428	42,513
Other comprehensive income (loss):
Unrealized gain on interest rate swap
Foreign currency translation loss
Total comprehensive income	46,428	42,513
Comprehensive income attributable to non-controlling interests
Comprehensive income attributable to MPT common stockholders	46,428	42,513
Non-Guarantor Subsidiaries [Member]
Comprehensive Income (Loss) [Line Items]
Net income	(17,567)	2,407
Other comprehensive income (loss):
Unrealized gain on interest rate swap
Foreign currency translation loss
Total comprehensive income	(17,567)	2,407
Comprehensive income attributable to non-controlling interests
Comprehensive income attributable to MPT common stockholders	(17,567)	2,407
Eliminations [Member]
Comprehensive Income (Loss) [Line Items]
Net income	(36,168)	(71,130)
Other comprehensive income (loss):
Unrealized gain on interest rate swap	(721)	(827)
Foreign currency translation loss	28
Total comprehensive income	(36,861)	(71,957)
Comprehensive income attributable to non-controlling interests	66	54
Comprehensive income attributable to MPT common stockholders	$ (36,795)	$ (71,903)