Summarized Results of Operations for Discontinued Facilities (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Discontinued Operations [Line Items]
Managed-only, Revenue	$ 2,007	$ 9,126	$ 19,984	$ 27,237
Disposal Group, Including Discontinued Operation, Revenue, Total	2,007	9,126	19,984	27,237
Managed-only, Expenses	2,945	8,747	22,529	27,252
Depreciation and amortization, Expenses	124	224	799	645
Asset impairments			2,637
Disposal Group, Including Discontinued Operation, Operating Expense, Total	3,069	8,971	25,965	27,897
OPERATING (LOSS) INCOME	(1,062)	155	(5,981)	(660)
Other (expense) income	(16)		(17)	90
(LOSS) INCOME FROM DISCONTINUED OPERATIONS BEFORE INCOME TAXES	(1,078)	155	(5,998)	(570)
Income tax benefit (expense)	415	(56)	2,241	215
(LOSS) INCOME FROM DISCONTINUED OPERATIONS, NET OF TAXES	$ (663)	$ 99	$ (3,757)	$ (355)