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Organization, Nature of Operations and Basis of Presentation - Schedule of Multi, Clinic Acquisition (Details) - Clinic	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Combination, Description [Abstract]
Percentage of interest acquired		35.00%
Number of clinics	5	2	2
August 2018 Acquisition [Member]
Business Combination, Description [Abstract]
Acquisition date	Aug. 31, 2018
Percentage of interest acquired	70.00%
Number of clinics	4
January 2017 Acquisition [Member]
Business Combination, Description [Abstract]
Acquisition date		Jan. 01, 2017
Percentage of interest acquired		70.00%
Number of clinics		17
May 2017 Acquisition [Member]
Business Combination, Description [Abstract]
Acquisition date		May 31, 2017
Percentage of interest acquired		70.00%
Number of clinics		4
June 2017 Acquisition [Member]
Business Combination, Description [Abstract]
Acquisition date		Jun. 30, 2017
Percentage of interest acquired		60.00%
Number of clinics		9
October 2017 Acquisition [Member]
Business Combination, Description [Abstract]
Acquisition date		Oct. 31, 2017
Percentage of interest acquired		70.00%
Number of clinics		9
February 2016 Acquisition [Member]
Business Combination, Description [Abstract]
Acquisition date			Feb. 29, 2016
Percentage of interest acquired			55.00%
Number of clinics			8
November 2016 Acquisition [Member]
Business Combination, Description [Abstract]
Acquisition date			Nov. 30, 2016
Percentage of interest acquired			60.00%
Number of clinics			12

X

- Definition

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 at the acquisition date in the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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