Share-Based Compensation (Details) - Stock Option Assumptions	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock Option Assumptions [Abstract]
Expected option term	6 years 292 days	6 years 255 days	6 years 292 days
Expected volatility	56.50%	57.80%	62.50%
Risk-free interest rate	0.80%	0.80%	2.00%
Dividend yield	3.10%