Earnings Per Common Share (EPS) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share, Basic and Diluted [Abstract]
Net Income (Loss) Available to Common Stockholders, Basic	$ 5,607	$ 7,226	$ 10,030	$ 19,069
Shares, Basic EPS	42,596	42,202	42,560	42,087
Per Share Amount, Basic EPS	$ 0.13	$ 0.17	$ 0.24	$ 0.45
Shares, Effect of dilutive stock options and warrants	276	490	233	449
Net Income, Diluted EPS	$ 5,607	$ 7,226	$ 10,030	$ 19,069
Shares, Diluted EPS	42,872	42,692	42,793	42,536
Per Share Amount, Diluted EPS	$ 0.13	$ 0.17	$ 0.23	$ 0.45
Stock options excluded from the calculation of common stock equivalents as the impact was anti-dilutive	1,857	1,542	2,125	1,608