Stock-Based Compensation Plans (Weighted Average Assumptions Used To Determine The Options Fair Value) (Detail)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Share-based Compensation [Abstract]
Expected dividend yield	0.50%	0.60%
Expected volatility	59.10%	62.60%
Risk-free rate	0.70%	0.70%
Expected option life (in years)	4 years 6 months	4 years 6 months