Stockholders' Equity Computation of diluted weighted average shares outstanding (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Weighted average shares outstanding - basic	49,964,819	50,529,476	50,944,349
Weighted average number diluted shares outstanding adjustment	1,953,484	883,034	785,164
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities	64,317	0	0
Weighted average shares outstanding - diluted	51,982,620	51,412,510	51,729,513
Antidilutive securities excluded from computation of earnings per share, amount	438,000	3,679,000	1,956,000