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Organization, Nature of Operations and Basis of Presentation - Acquisition (Details)

12 Months Ended

Dec. 31, 2021

Clinic

Jun. 30, 2021

Clinic

Mar. 31, 2021

Clinic

Nov. 30, 2020

Clinic

Sep. 30, 2020

Contract

Feb. 27, 2020

Partnership

Clinic

Sep. 30, 2019

Clinic

Aug. 31, 2018

Clinic

Dec. 31, 2021

Clinic

Segment

Partnership

Dec. 31, 2020

Clinic

Partnership

Dec. 31, 2019

Partnership

Nov. 30, 2021

Business Combination, Description [Abstract]

Number of reportable segments | Segment

2

Number of clinics

5

3

Number of partnerships | Partnership

5

5

4

Multi-Clinic Practices [Member]

Business Combination, Description [Abstract]

Number of clinics

7

IIPS [Member]

Business Combination, Description [Abstract]

Percentage of interest acquired

70.00%

Number of clinics

3

Remaining contract term

5 years

December 2021 Acquisition [Member]

Business Combination, Description [Abstract]

Acquisition date

Dec. 31, 2021

Percentage of interest acquired

75.00%

75.00%

Number of clinics

3

November 2021 Acquisition [Member]

Business Combination, Description [Abstract]

Acquisition date

Nov. 30, 2021

Percentage of interest acquired

70.00%

70.00%

Number of clinics

^[1]

September 2021 Acquisition [Member]

Business Combination, Description [Abstract]

Acquisition date

Sep. 30, 2021

Percentage of interest acquired

100.00%

100.00%

Number of clinics

^[1]

June 2021 Acquisition [Member]

Business Combination, Description [Abstract]

Acquisition date

Jun. 30, 2021

Percentage of interest acquired

65.00%

65.00%

Number of clinics

8

March 2021 Acquisition [Member]

Business Combination, Description [Abstract]

Acquisition date

Mar. 31, 2021

Percentage of interest acquired

70.00%

70.00%

Number of clinics

6

November 2020 Acquisition [Member]

Business Combination, Description [Abstract]

Acquisition date

Nov. 30, 2020

Percentage of interest acquired

75.00%

75.00%

Number of clinics

3

September 2020 Acquisition [Member]

Business Combination, Description [Abstract]

Acquisition date

Sep. 30, 2020

Percentage of interest acquired

70.00%

70.00%

Number of clinics

^[2],[3]

February 2020 Acquisition [Member]

Business Combination, Description [Abstract]

Acquisition date

Feb. 27, 2020

Percentage of interest acquired

^[4]

65.00%

65.00%

Number of clinics

4

September 2019 Acquisition [Member]

Business Combination, Description [Abstract]

Acquisition date

Sep. 30, 2019

Percentage of interest acquired

67.00%

67.00%

67.00%

Number of clinics

11

11

April 2019 Acquisition [Member]

Business Combination, Description [Abstract]

Acquisition date

Apr. 11, 2019

Percentage of interest acquired

100.00%

100.00%

100.00%

Number of clinics

^[1]

Management Contracts [Member]

Business Combination, Description [Abstract]

Percentage of interest acquired

70.00%

Number of management contracts | Contract

6

Remaining contract term

5 years

Clinic Practice [Member]

Business Combination, Description [Abstract]

Percentage of interest acquired

75.00%

65.00%

70.00%

75.00%

65.00%

75.00%

Number of clinics

3

8

5

3

4

Number of partnerships | Partnership

4

Clinic Practice [Member] | Minimum [Member]

Business Combination, Description [Abstract]

Percentage of interest acquired

5.00%

10.00%

5.00%

20.00%

1.00%

Clinic Practice [Member] | Maximum [Member]

Business Combination, Description [Abstract]

Percentage of interest acquired

35.00%

83.80%

35.00%

35.00%

20.00%

[1]	Industrial injury prevention business
[2]	The business includes six management and services contracts which have been in place for a number of years. As of the date acquired, the contracts had a remaining term of five years.
[3]	The business includes six management and services contracts which have been in place for a number of years. As of the date acquired, the contracts had a remaining term of five years.
[4]	The four clinics are in four separate partnerships. The Company's interest in the four partnerships range from 10.0% to 83.8%, with an overall 65.0% based on the initial purchase transaction.

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