Name:	us-gaap_EquityAbstract
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Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price).

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

Name:	us-gaap_FairValueAssumptionsExpectedDividendRate
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Description of the expected term under the specified contract (or assumed time period) the instrument will be outstanding before being exercised, placed into service or terminated, the reason and justification for its use, and the periods for which the method was used.

Name:	us-gaap_FairValueAssumptionsExpectedTermSimplifiedMethod
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Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

Name:	us-gaap_FairValueAssumptionsExpectedVolatilityRate
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Data Type:	num:percentItemType
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Risk-free interest rate assumption used in valuing an instrument.