Stock-Based Compensation Stock Option Black Scholes Option Pricing Model Assumptions (Details) (Employee Stock Option [Member])	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012	Jun. 30, 2011
Employee Stock Option [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis, Valuation Techniques [Line Items]
Dividend yield	0.00%	[1]	0.00%	[1]	0.00%	0.00%
Expected volatility	0.00%	[1]	0.00%	[1]	42.70%	46.60%
Risk free interest rate	0.00%	[1]	0.00%	[1]	0.90%	2.00%
Expected life (years)	0	[1]	0	[1]	5.14	4.85

[1] There were no employee stock options granted for the three months ended June 30, 2012 and 2011.