Net Income Per Common Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net Income (Loss) Available to Common Stockholders, Basic	$ 18,353		$ 1,532		$ 53,675		$ 25,406
Effect of dilutive stock options on income	0		0		0		0
Diluted, Income	$ 18,353		$ 1,532		$ 53,675		$ 25,406
Weighted Average Common Shares	54,367,349		40,353,219		52,751,763		37,972,766
Effect of dilutive stock options on weighted average common shares	866		82		0		1,183
Diluted, Weighted Average Number Common Shares	54,368,215		40,353,301		52,751,763		37,973,949
Basic	$ 0.34		$ 0.04		$ 1.02		$ 0.67
Diluted	$ 0.34	[1]	$ 0.04	[1]	$ 1.02	[2]	$ 0.67	[2]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			15,000		15,000		15,000

[1] For the three months ended September 30, 2011, the calculation of diluted net income per common share excludes the effect of 15,000 unexercised stock option awards because their inclusion would have been anti-dilutive.

[2] For the nine months ended September 30, 2012 and September 30, 2011, the calculation of diluted net income per common share excludes the effect of 15,000 unexercised stock option awards because their inclusion would have been anti-dilutive.