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INTANGIBLE ASSETS, NET - Additional Information (Details)	3 Months Ended
	Mar. 31, 2015
Referral relationships [Member] | Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life	6 years
Referral relationships [Member] | Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life	16 years
Non-competition agreements [Member] | Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life	5 years
Non-competition agreements [Member] | Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Estimated useful life	6 years

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- Details

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- Definition

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

+ References

No definition available.

+ Details

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- Details

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- Details

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