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Dispositions and Acquisitions - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended			3 Months Ended	9 Months Ended	1 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Arbor Group, L.L.C Contract Bed	Jun. 30, 2014 Psychiatric Institute Bed	Sep. 30, 2014 Palo Verde Behavioral Health Bed	Nov. 30, 2010 Cygnet Health Care Limited Facility	Sep. 30, 2014 Cygnet Health Care Limited Hospital Facility Bed	Sep. 30, 2013 Peak Bed	Sep. 30, 2013 Previously Closed Facilities Facility
Significant Acquisitions and Disposals [Line Items]
Number of management contracts				3
Number of beds				66	124	48		734
Cash paid/reserved related to acquisition of property and businesses		$ 402,405,000	$ 1,320,000
Number of facilities							18	18		5
Number of hospitals								16
Number of nursing homes							2	2
Aggregate cash proceeds from divestiture of businesses		15,000,000	37,000,000
Pre-tax gain (loss) proceeds from divestiture of businesses	$ (2,000,000)	$ 8,000,000
Number of acute care hospital beds included in sale									104

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

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-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133



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-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

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