XML 76 R99.htm IDEA: XBRL DOCUMENT

Assumptions in Option Pricing Models (Detail) (Misys Stock Plan)	7 Months Ended	12 Months Ended
	Dec. 31, 2010	May 31, 2010
Discounted Cash Flow Pricing Model, by Assumption [Line Items]
Risk-free interest rate	1.22%	2.04%
Dividend yield	0.00%	0.00%
Nil Cost Awards
Discounted Cash Flow Pricing Model, by Assumption [Line Items]
Volatility	47.00%	46.00%
Expected life (years)	3 years	3 years

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References+ Details