Business acquisition, percentage of voting interests transferred to third party.

No definition available.

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- Definition

Minority Interest Ownership Percentage Acquired By Parent

+ References

No definition available.

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- Definition

Number Of Shares Per Unit

+ References

No definition available.

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- Definition

Number Of Years For Contingent Consideration Arrangements

+ References

No definition available.

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- Definition

Date when an entity was incorporated

+ References

No definition available.

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- Definition

The net amount, measured at acquisition-date fair value, of all the assets acquired and liabilities assumed that arise from contingencies and were recognized by the entity.

+ References

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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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 55

-Paragraph 37

-URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Definition

Amount of the entity's equity method investment which has been sold.

+ References

No definition available.

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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- Definition

Number of new stock issued during the period.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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- Definition

Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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Organization and Basis of Presentation - Additional Information (Detail) In Thousands, except Share data, unless otherwise specified	12 Months Ended		0 Months Ended		12 Months Ended			0 Months Ended						0 Months Ended
	Dec. 31, 2014 USD ($)	Dec. 31, 2014 CNY	Dec. 16, 2009 American Depositary Shares [Member] USD ($)	Dec. 16, 2009 American Depositary Shares [Member] CNY	Dec. 31, 2014 Guangzhou HuananTaihe Medical Technology Co. Ltd. ("GZ Proton") [Member]	Jun. 06, 2013 Guangzhou HuananTaihe Medical Technology Co. Ltd. ("GZ Proton") [Member]	Nov. 27, 2007 Guangzhou HuananTaihe Medical Technology Co. Ltd. ("GZ Proton") [Member]	Dec. 18, 2014 Datang Healthcare Corporation Limited ("Datang") [Member] USD ($)	Dec. 18, 2014 Datang Healthcare Corporation Limited ("Datang") [Member] CNY	Dec. 03, 2014 Datang Healthcare Corporation Limited ("Datang") [Member] USD ($)	Dec. 03, 2014 Datang Healthcare Corporation Limited ("Datang") [Member] CNY	Dec. 18, 2014 Datang Healthcare Corporation Limited ("Datang") [Member]	Dec. 03, 2014 Datang Healthcare Corporation Limited ("Datang") [Member]	Jun. 28, 2013 Beijing Jinweiyikang Technology Co., Ltd. ("JWYK") [Member]	Jun. 28, 2013 Beijing Jinweiyikang Technology Co., Ltd. ("JWYK") [Member] CNY	Apr. 26, 2012 Beijing Jinweiyikang Technology Co., Ltd. ("JWYK") [Member]
Noncontrolling Interest [Line Items]
Initial public offering of ordinary shares, shares			12,000,000	12,000,000
Price per share			$ 11.0
Number of ordinary shares comprising each unit			3	3
Initial public offering of ordinary shares			$ 119,211	813,938
Percentage of equity interests acquired							90.00%									51.00%
Percentage of equity interest transferred						20.00%
Date of establishment					Jun. 29, 2011
Percentage of remaining ownership acquired by the company															49.00%
Purchase price of entity															1,850
Contingent amount of consideration															3,150
Number of years for consideration plus contingent amount payment														3 years
Percentage of equity interest sold	100.00%	100.00%										52.00%	52.00%
Total consideration of equity interest sold	$ 51,167	317,470						$ 64,134	397,923	$ 64,134	397,923