XML 74 R63.htm IDEA: XBRL DOCUMENT

Share-Based Compensation and Capital Stock Pre-Tax Stock-Based Compensation Expenses And Associated Income Tax Benefits (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Pre-tax stock-based compensation expenses	$ 3.1	$ 2.7	$ 8.6	$ 8.0
Income tax benefits	1.1	1.0	3.2	3.0
Stock Options [Member]
Pre-tax stock-based compensation expenses	0.5	0.7	1.6	2.0
Restricted Stock [Member]
Pre-tax stock-based compensation expenses	1.8	1.9	5.7	5.6
Performance Vested Restricted Stock Units [Member]
Pre-tax stock-based compensation expenses	$ 0.8	$ 0.1	$ 1.3	$ 0.4

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References+ Details