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Summary of Significant Accounting Policies - Schedule of Information Relating to Property, Plant and Equipment (Detail)	12 Months Ended
	Dec. 31, 2014
Motor Vehicles [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Buildings [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	38 years
Leasehold Improvement and Building Improvement [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	shorter of lease term or 5 years
Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Minimum [Member] | Electronic and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	3 years
Minimum [Member] | Medical Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	20 years
Maximum [Member] | Electronic and Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	5 years
Maximum [Member] | Medical Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life	20 years

X

- Definition

Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 35

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6539997&loc=d3e1205-110223

+ Details

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- Details

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X

- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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