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

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Percentage of voting equity interests acquired at the acquisition date 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=56956515&loc=d3e1392-128463

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- Definition

The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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-Name Accounting Standards Codification
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-Section 50
-Paragraph 1
-Subparagraph (d)
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- Definition

This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

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-Name Accounting Standards Codification
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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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- Definition

Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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- Definition

Amount of assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

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

+ References

No definition available.

+ Details

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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- Definition

The amount of business acquisition cost of acquired entity debt issued on the date of acquisition.

+ References

No definition available.

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Business acquisition number of installments to payment of purchase consideration.

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No definition available.

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Amount of business acquisition principal installments payable at cost of acquired by entity at accrued interest.

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No definition available.

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- Definition

Amount of net tangible asset acquired at the acquisition date.

+ References

No definition available.

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- Definition

Useful life of acquired finite-lived intangible assets in business combination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The amount of non-competition agreements recognized as of the acquisition date.

+ References

No definition available.

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- Definition

Amount of referral relationships at the acquisition date.

+ References

No definition available.

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- Definition

The amount of tradename recognized as of the acquisition date.

+ References

No definition available.

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- References

No definition available.

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- Definition

Payments to acquire businesses total consideration.

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No definition available.

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Acquisitions of Businesses (Details)													12 Months Ended
Acquisitions of Businesses (Details)	Dec. 31, 2015 USD ($) Installment	Aug. 31, 2015 USD ($)	Jun. 30, 2015 USD ($)	Apr. 30, 2015 USD ($) Installment	Jan. 31, 2015 USD ($) Installment	Aug. 31, 2014 USD ($)	Apr. 30, 2014 USD ($) Installment	Dec. 13, 2013 USD ($) Installment	Dec. 09, 2013 USD ($)	May. 31, 2013 USD ($) Installment	Apr. 30, 2013 USD ($) Installment	Feb. 18, 2013 USD ($) Installment	Dec. 31, 2015 USD ($) Clinic	Dec. 31, 2014 USD ($) Clinic	Dec. 31, 2013 USD ($) Clinic
Business Acquisition [Line Items]
Seller notes issued for acquisition of interest in clinic	$ 1,800,000												$ 1,800,000	$ 400,000	$ 1,300,000
Cash paid, net of cash acquired													18,965,000	12,270,000	46,628,000
Seller notes	1,800,000												1,800,000	400,000	1,300,000
Total consideration	20,765,000												20,765,000	12,670,000	47,928,000
Estimated fair value of net tangible assets acquired: [Abstract]
Total current assets	2,146,000												2,146,000	1,213,000	3,177,000
Total non-current assets	1,404,000												1,404,000	1,051,000	1,541,000
Total liabilities	(1,036,000)												(1,036,000)	(406,000)	(538,000)
Net tangible assets acquired	2,514,000												2,514,000	1,858,000	4,180,000
Referral relationships	3,069,000												3,069,000	280,000	6,140,000
Non-compete	731,000												731,000	330,000	1,080,000
Tradename	3,315,000												3,315,000	1,600,000	3,700,000
Goodwill	23,428,000												23,428,000	13,327,000	43,369,000
Fair value of noncontrolling interest	(12,292,000)												(12,292,000)	(4,725,000)	(10,541,000)
Total consideration	$ 20,765,000												$ 20,765,000	$ 12,670,000	$ 47,928,000
Minimum [Member]
Business Acquisition [Line Items]
Percentage of interest acquired	5.00%												5.00%	1.00%
Maximum [Member]
Business Acquisition [Line Items]
Percentage of interest acquired	35.00%												35.00%	35.00%
Referral Relationships [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Estimated useful lives of acquired intangibles													4 years 6 months
Referral Relationships [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Estimated useful lives of acquired intangibles													13 years
Non-compete Agreements [Member]
Business Acquisition [Line Items]
Estimated useful lives of acquired intangibles													6 years
Tradenames [Member]
Business Acquisition [Line Items]
Estimated useful lives of acquired intangibles													6 years
January 2015 Acquisition [Member]
Business Acquisition [Line Items]
Acquisition date													Jan. 31, 2015
Percentage of interest acquired	60.00%												60.00%
Number of Clinics \| Clinic													9
April 2015 Acquisition [Member]
Business Acquisition [Line Items]
Acquisition date													Apr. 30, 2015
Percentage of interest acquired	70.00%												70.00%
Number of Clinics \| Clinic													3
June 2015 Acquisition [Member]
Business Acquisition [Line Items]
Acquisition date													Jun. 30, 2015
Percentage of interest acquired	70.00%												70.00%
Number of Clinics \| Clinic													4
December 2015 Acquisition [Member]
Business Acquisition [Line Items]
Acquisition date													Dec. 31, 2015
Percentage of interest acquired	59.00%												59.00%
Number of Clinics \| Clinic													4
April 2014 Acquisition [Member]
Business Acquisition [Line Items]
Acquisition date													Apr. 30, 2014	Apr. 30, 2014
Percentage of interest acquired														70.00%
Number of Clinics \| Clinic													13	13
August 2014 Acquisition [Member]
Business Acquisition [Line Items]
Acquisition date													Aug. 01, 2014	Aug. 01, 2014
Percentage of interest acquired														100.00%
Number of Clinics \| Clinic													3	3
February 2013 Acquisition [Member]
Business Acquisition [Line Items]
Acquisition date													Feb. 28, 2013		Feb. 28, 2013
Percentage of interest acquired															72.00%
Number of Clinics \| Clinic													9		9
April 2013 Acquisition [Member]
Business Acquisition [Line Items]
Acquisition date													Apr. 30, 2013		Apr. 30, 2013
Percentage of interest acquired															50.00%
Number of Clinics \| Clinic													5		5
May 2013 Acquisition [Member]
Business Acquisition [Line Items]
Acquisition date													May 24, 2013		May 24, 2013
Percentage of interest acquired															80.00%
Number of Clinics \| Clinic													5		5
December 9, 2013 Acquisition [Member]
Business Acquisition [Line Items]
Acquisition date													Dec. 09, 2013		Dec. 09, 2013
Percentage of interest acquired															60.00%
Number of Clinics \| Clinic													12		12
December 13, 2013 Acquisition [Member]
Business Acquisition [Line Items]
Acquisition date													Dec. 13, 2013		Dec. 13, 2013
Percentage of interest acquired															90.00%
Number of Clinics \| Clinic													11		11
Acquisition Of Single Clinic Practices [Member]
Business Acquisition [Line Items]
Percentage of interest acquired	60.00%	60.00%											60.00%
Number of Clinics \| Clinic													1	4	3
Cash paid for acquisition of interest in clinic		$ 150,000
Seller notes issued for acquisition of interest in clinic		50,000
Aggregate purchase price for the acquired clinic practices															$ 238,000
Seller notes		50,000
Acquisition Of Single Clinic Practices [Member] \| August 2016 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest		$ 50,000
Acquisition Of Three Clinic Practices [Member]
Business Acquisition [Line Items]
Percentage of interest acquired				70.00%
Cash paid for acquisition of interest in clinic				$ 4,700,000		$ 1,000,000
Seller notes issued for acquisition of interest in clinic				$ 150,000										$ 595,000
Business acquisition number of installments to payment of purchase consideration \| Installment				2
Seller notes				$ 150,000										$ 595,000
Acquisition Of Three Clinic Practices [Member] \| April 2016 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest				75,000
Acquisition Of Three Clinic Practices [Member] \| April 2017 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest				$ 75,000
Acquisition Of Four Clinic Practices [Member]
Business Acquisition [Line Items]
Percentage of interest acquired	59.00%		70.00%										59.00%
Cash paid for acquisition of interest in clinic	$ 4,600,000		$ 3,600,000
Seller notes issued for acquisition of interest in clinic	$ 400,000		700,000										$ 400,000
Business acquisition number of installments to payment of purchase consideration \| Installment	2
Seller notes	$ 400,000		700,000										$ 400,000
Acquisition Of Four Clinic Practices [Member] \| December 2016 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest	200,000
Acquisition Of Four Clinic Practices [Member] \| December 2017 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest	$ 200,000
Acquisition Of Four Clinic Practices [Member] \| June 2018 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest			$ 700,000
Acquisition Of Five Clinic Practices [Member]
Business Acquisition [Line Items]
Percentage of interest acquired										80.00%	50.00%
Cash paid for acquisition of interest in clinic										$ 3,600,000	$ 2,400,000
Seller notes issued for acquisition of interest in clinic										$ 200,000	$ 200,000
Business acquisition number of installments to payment of purchase consideration \| Installment										2	2
Seller notes										$ 200,000	$ 200,000
Acquisition Of Five Clinic Practices [Member] \| April 2015 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest											100,000
Acquisition Of Five Clinic Practices [Member] \| April 2014 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest											$ 100,000
Acquisition Of Five Clinic Practices [Member] \| May 2014 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest										100,000
Acquisition Of Five Clinic Practices [Member] \| May 2015 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest										$ 100,000
Acquisition Of Nine Clinic Practices [Member]
Business Acquisition [Line Items]
Percentage of interest acquired					60.00%							72.00%
Cash paid for acquisition of interest in clinic					$ 6,700,000							$ 4,300,000
Seller notes issued for acquisition of interest in clinic					$ 500,000							$ 400,000
Business acquisition number of installments to payment of purchase consideration \| Installment					2							2
Seller notes					$ 500,000							$ 400,000
Acquisition Of Nine Clinic Practices [Member] \| January 2016 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest					250,000
Acquisition Of Nine Clinic Practices [Member] \| January 2017 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest					$ 250,000
Acquisition Of Nine Clinic Practices [Member] \| February 2014 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest												200,000
Acquisition Of Nine Clinic Practices [Member] \| February 2015 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest												$ 200,000
Acquisition Of Eleven Clinic Practices [Member]
Business Acquisition [Line Items]
Percentage of interest acquired								90.00%
Cash paid for acquisition of interest in clinic								$ 35,500,000
Seller notes issued for acquisition of interest in clinic								$ 500,000
Business acquisition number of installments to payment of purchase consideration \| Installment								2
Seller notes								$ 500,000
Acquisition Of Eleven Clinic Practices [Member] \| December 2014 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest								250,000
Acquisition Of Eleven Clinic Practices [Member] \| December 2015 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest								$ 250,000
Acquisition Of Twelve Clinic Practices [Member]
Business Acquisition [Line Items]
Percentage of interest acquired									60.00%
Cash paid for acquisition of interest in clinic									$ 1,700,000
Acquisition Of Thirteen Clinic Practices [Member]
Business Acquisition [Line Items]
Percentage of interest acquired							70.00%
Cash paid for acquisition of interest in clinic							$ 10,600,000
Seller notes issued for acquisition of interest in clinic							$ 400,000
Business acquisition number of installments to payment of purchase consideration \| Installment							2
Seller notes							$ 400,000
Acquisition Of Thirteen Clinic Practices [Member] \| April 2016 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest							200,000
Acquisition Of Thirteen Clinic Practices [Member] \| April 2015 [Member]
Business Acquisition [Line Items]
Acquisition cost payable in installments including accrued interest							$ 200,000