Net Purchase Price of Facilities' Assets and Liabilities on their Estimated Fair Value (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010 2010 Acquisitions of Assets and Businesses	Dec. 31, 2010 2010 Acquisitions of Assets and Businesses Psychiatric Solutions Inc	Nov. 15, 2010 2010 Acquisitions of Assets and Businesses Psychiatric Solutions Inc	Dec. 31, 2012 2012 Acquisitions of Assets and Businesses
Business Acquisition [Line Items]
Working capital, net				$ 60,000		$ 21,000
Assets held for sale				67,000
Property, plant & equipment				932,000		60,000
Goodwill				1,921,000		446,000
Other assets				132,000		9,000
Income tax assets, net of deferred tax liabilities				(14,000)		(1,000)
Debt			(1,082,000)	(1,082,000)	(1,080,000)
Liabilities held for sale	(850)	(2,329)		(1,000)
Redeemable noncontrolling interests	(234,000)	(218,000)		(5,000)
Other liabilities				(52,000)		(7,000)
Cash paid for acquisitions and deposits			$ 1,958,000	$ 1,958,000	$ 1,960,000	$ 528,000