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Exit Activities (Detail) (USD $)	3 Months Ended		6 Months Ended		4 Months Ended	6 Months Ended	3 Months Ended
Exit Activities (Detail) (USD $)	Jun. 30, 2013 Agencies	Jun. 30, 2012	Jun. 30, 2013 Agencies	Jun. 30, 2012	Apr. 30, 2013 Alaska and Washington Care Centers [Member]	Jun. 30, 2013 Unconsolidated Joint Venture [Member]	Jun. 30, 2013 Severance [Member]	Jun. 30, 2013 Intangible Assets Write-Off [Member]	Jun. 30, 2013 Lease Termination [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs							$ 700,000	$ 2,300,000	$ 800,000
Number Of Care Centers Consolidated	19		28
Gains (Losses) on Sales of Assets	357,000	0	357,000	0	1,000,000	(700,000)
Proceeds from Divestiture of Business			$ 2,082,000	$ 0	$ 1,600,000	$ 500,000

The charge against earnings in the period, comprised of costs associated with restructuring activities not otherwise specified in the taxonomy pursuant to a duly authorized plan, excluding a discontinued operation as defined by generally accepted accounting principles. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, but excludes costs associated with the retirement of a long-lived asset and severance costs associated with established compensation plans.

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