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Acquisitions and Divestiture (Details)	1 Months Ended		12 Months Ended							12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended
	Jul. 31, 2010 Clinic	Mar. 31, 2010 Clinic	Dec. 31, 2012 Clinic	May 22, 2012	Jul. 25, 2011	Jun. 30, 2011	Dec. 31, 2010	Dec. 21, 2010	Feb. 26, 2010	Dec. 31, 2012 May 2012 Acquisition [Member] Clinic	Dec. 03, 2012 May 2012 Acquisition [Member]	Dec. 31, 2012 July 2011 Acquisition [Member] Clinic	Dec. 03, 2012 July 2011 Acquisition [Member]	Dec. 31, 2012 February 2010 Acquisition [Member] Clinic	Dec. 03, 2012 February 2010 Acquisition [Member]	Dec. 31, 2012 December 21, 2010 Acquisition [Member] Clinic	Dec. 03, 2012 December 21, 2010 Acquisition [Member]	Dec. 31, 2012 December 31, 2010 Acquisition [Member] Clinic	Dec. 03, 2012 December 31, 2010 Acquisition [Member]
Schedule of multi clinic acquisition
Acquisition date										May 22, 2012		Jul. 25, 2011		Feb. 26, 2010		Dec. 21, 2010		Dec. 31, 2010
Percentage of interest acquired				70.00%	51.00%	100.00%	65.00%	70.00%	70.00%	70.00%	70.00%	51.00%	51.00%	70.00%	70.00%	70.00%	70.00%	65.00%	65.00%
Number of clinics	1	1	7							7		20		5		6		14

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Date when the business acquisition agreement was executed, in CCYY-MM-DD format.

+ References

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- Definition

Percentage of voting equity interests acquired in the business combination.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463



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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 68

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The number of businesses acquired by the entity during the period.

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