XML 50 R59.htm IDEA: XBRL DOCUMENT v2.4.0.6

Stock-Based Compensation Arrangements (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2010
Stock-based compensation
Vesting period	4 years
Percentage of the award vesting one year from the date of grant	0.25
Period for vesting of one-fourth award	1 year
Percentage of the award vesting each month after one year	0.0208
Percentage of the award vesting each month		0.0208
Executive officers | Minimum
Stock-based compensation
Vesting period	3 years
Executive officers | Maximum
Stock-based compensation
Vesting period	5 years

X

- Definition

Represents the percentage of the awards vesting each month from the date of grant.

+ References

No definition available.

+ Details

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X

- Definition

Represents the percentage of the awards vesting each month after one year from the date of grant.

+ References

No definition available.

+ Details

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X

- Definition

Percentage of the award vesting at the first year from the date of grant.

+ References

No definition available.

+ Details

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X

- Definition

Represents the period from the date of grant for the vesting of one-fourth of the award .

+ References

No definition available.

+ Details

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X

- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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