Summarized Results of Operations for Discontinued Facilities (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2012
Discontinued Operations [Line Items]
Managed-only, Revenue	$ 193
Disposal Group, Including Discontinued Operation, Revenue, Total	193
Managed-only, Expenses	861
Disposal Group, Including Discontinued Operation, Operating Expense, Total	861
OPERATING LOSS	(668)
Other income	91
LOSS FROM DISCONTINUED OPERATIONS BEFORE INCOME TAXES BEFORE INCOME TAX	(577)
Income tax benefit	215
LOSS FROM DISCONTINUED OPERATIONS, NET OF TAXES	$ (362)

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Disposal Group Including Discontinued Operation Other Income.

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Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Amount of costs of goods sold attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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Amount of operating expenses attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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Amount of operating income or loss attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

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