Stockholders' Equity, Stock Plan (Details)	12 Months Ended				12 Months Ended
	Dec. 31, 2009 Omnibus Equity Incentive Plan 2000 [Member]	Feb. 28, 2010 Omnibus Equity Incentive Plan 2000 [Member]	Dec. 31, 2013 Equity Performance Incentive Plan 2010 [Member]	Feb. 28, 2010 Equity Performance Incentive Plan 2010 [Member]	Dec. 31, 2013 Equity Performance Incentive Plan 2010 [Member] Stock Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares authorized (in shares)	4,000,000	0		5,000,000
Maximum number of additional shares authorized each year (in shares)	2,000,000
Additional shares authorized per year, maximum (in hundredths)	5.00%
Term of incentive plan					10 years
Shares available for grant (in shares)			2,200,000