Stock-Based Compensation (Details 3)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Risk-free interest rate	0.96%	0.98%	2.04%
Expected life (years)	5 years 3 months 18 days	5 years 3 months 18 days	5 years 2 months 12 days
Expected volatility	48.90%	50.20%	49.60%
Expected dividend yield	2.38%	2.56%	2.75%