Securities and Exchange Commission

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Deprecated 2012-01-31)

The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior.

Compare To Other Companies

Annual (pure)

Value	Reported On	Form	FY	FP	Start Date	End Date	Fiscal Period
4.5	2013-02-28	10-K	2012	FY	2010-01-01	2010-12-31	CY2010
4.5	2013-02-28	10-K	2012	FY	2011-01-01	2011-12-31	CY2011
4.5	2013-02-28	10-K	2012	FY	2012-01-01	2012-12-31	CY2012

All Reported Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Deprecated 2012-01-31) (pure)

Value	Reported On	Form	FY	FP	Start Date	End Date	Fiscal Period
4.5	2013-02-28	10-K	2012	FY	2010-01-01	2010-12-31	CY2010
4.5	2013-02-28	10-K	2012	FY	2011-01-01	2011-12-31	CY2011
4.5	2013-02-28	10-K	2012	FY	2012-01-01	2012-12-31	CY2012

Annual (years)

Value	Reported On	Form	FY	FP	Start Date	End Date	Fiscal Period
4.5	2013-02-28	10-K	2012	FY	2010-01-01	2010-12-31	CY2010
4.5	2013-02-28	10-K	2012	FY	2011-01-01	2011-12-31	CY2011
4.5	2013-02-28	10-K	2012	FY	2012-01-01	2012-12-31	CY2012

All Reported Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term (Deprecated 2012-01-31) (years)

Value	Reported On	Form	FY	FP	Start Date	End Date	Fiscal Period
4.5	2013-02-28	10-K	2012	FY	2010-01-01	2010-12-31	CY2010
4.5	2013-02-28	10-K	2012	FY	2011-01-01	2011-12-31	CY2011
4.5	2013-02-28	10-K	2012	FY	2012-01-01	2012-12-31	CY2012