Remaining Renewal Options and Terms for Hospital Facilities Leased from Trust (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2013 RenewalOptions
McAllen Medical Center
Capital Leased Assets [Line Items]
Number of renewal options at existing lease rates	3
Renewal options term at existing lease rates	5 years
Wellington Regional Medical Center
Capital Leased Assets [Line Items]
Number of renewal options at existing lease rates	1
Renewal options term at existing lease rates	5 years
Southwest Healthcare System, Inland Valley Campus
Capital Leased Assets [Line Items]
Number of renewal options at existing lease rates	2
Renewal options term at existing lease rates	5 years
The Bridgeway
Capital Leased Assets [Line Items]
Number of renewal options at existing lease rates	2
Renewal options term at existing lease rates	5 years
Maximum | McAllen Medical Center
Capital Leased Assets [Line Items]
Renewal options at existing lease rates expiration year	2031
Maximum | Wellington Regional Medical Center
Capital Leased Assets [Line Items]
Renewal options at existing lease rates expiration year	2021
Renewal options at fair market value lease rates expiration year	2031
Maximum | Southwest Healthcare System, Inland Valley Campus
Capital Leased Assets [Line Items]
Renewal options at existing lease rates expiration year	2021
Renewal options at fair market value lease rates expiration year	2031
Maximum | The Bridgeway
Capital Leased Assets [Line Items]
Renewal options at fair market value lease rates expiration year	2024
Minimum | Wellington Regional Medical Center
Capital Leased Assets [Line Items]
Renewal options at fair market value lease rates expiration year	2022
Minimum | Southwest Healthcare System, Inland Valley Campus
Capital Leased Assets [Line Items]
Renewal options at fair market value lease rates expiration year	2022
Minimum | The Bridgeway
Capital Leased Assets [Line Items]
Renewal options at fair market value lease rates expiration year	2015