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Segment Information (Details Textual) (USD $)
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6 Months Ended | 3 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
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Jun. 30, 2012
Country
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Jun. 30, 2011
|
Dec. 31, 2011
|
Jun. 30, 2012
Primary Reporting Segment [Member]
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Dec. 31, 2011
Primary Reporting Segment [Member]
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Jun. 30, 2012
China [Member]
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Jun. 30, 2011
China [Member]
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Dec. 31, 2011
China [Member]
|
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| Segment Information (Textual) [Abstract] | ||||||||
| China salesperson compensation and service fee costs | $ 59,300,000 | $ 45,500,000 | $ 33,500,000 | $ 23,700,000 | ||||
| Total assets for the Company's Segment | $ 1,530,792,000 | $ 1,446,209,000 | $ 1,416,000,000 | $ 1,357,400,000 | $ 114,800,000 | $ 88,800,000 | ||
| Segment Information (Additional Textual) [Abstract] | ||||||||
| Number of countries where the products are sold | 83 | |||||||
| X | ||||||||||
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- Definition
Foreign salesperson compensation and service fee costs. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of countries in which the entity operates as of balance sheet date. No definition available.
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