Stock-Based Compensation - Valuation Assumptions (Details) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Weighted average fair value of grants	$ 0.00	[1]	$ 7.17	[1]	$ 9.26	[1]	$ 9.57	[1]
Risk-free interest rate	0.00%		0.72%		0.95%		0.86%
Expected volatility	0.00%		54.44%		53.39%		55.22%
Expected life in years	0 years		5 years 4 months 2 days		5 years 2 months 12 days		5 years 1 month 24 days

[1] The weighted average fair value of grants was calculated utilizing the stock options granted during each respective period.