Basic and Diluted Net Income per Common Share (Schedule of Earnings Per Share Reconciliation) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	12 Months Ended
	Jan. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share [Abstract]
Income (Loss) from Operations before Extraordinary Items		$ 50,845	$ 5,951	$ (80,115)
Extraordinary Gain on Extinguishment of Junior Subordinate Debentures, Net of Income Taxes	32,800	0	0	32,839
Net income (loss)		$ 50,845	$ 5,951	$ (47,276)
Weighted Average Number of Shares Outstanding, Basic		47,186,756	47,127,737	43,628,044
Weighted Average Number Diluted Shares Outstanding Adjustment		296,956	150,287	0
Weighted-average shares outstanding - Diluted		47,483,712	47,278,024	43,628,044
Dilutive securities		64,171	139,346	114,593
Earnings Per Share, Basic and Diluted [Abstract]
Income (Loss) from Operations before Extraordinary Items, Per Basic and Diluted Share		$ 1.08	$ 0.13	$ (1.83)
Income (Loss) from Extraordinary Items, Net of Tax, Per Basic and Diluted Share		$ 0.00	$ 0.00	$ 0.75
Net income (loss) per common share (basic)		$ 1.08	$ 0.13	$ (1.08)
Net income per common share (diluted)		$ 1.07	$ 0.13	$ (1.08)