Condensed Consolidated Statement of Changes in Shareholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock
Beginning Balance at Dec. 31, 2013	$ 568,924	$ 670	$ 548,935	$ 30,084	$ (10,765)
Beginning Balance, shares at Dec. 31, 2013	65,652,690	66,959,000			1,306,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock	181,875	75	181,800
Issuance of common stock, shares		7,500,000
Cost to issue equity	(590)		(590)
Common stock issued to Board advisors	10	0	10
Common stock issued to Board advisors, shares		17,000
Stock options expense related to equity based awards	1,067		1,067
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		(2,000)
Stock Issued During Period, Value, Stock Options Exercised	6	0	6
Liability based stock option awards exercised, forfeited or expired	10		10
Restricted stock issued		2	(2)
Stock Issued During Period, Value, Restricted Stock Award, Forfeitures	(18)		(18)
Restricted stock issued, shares		180,000
Restricted stock forfeited, shares					24,000
Restricted stock and restricted stock units expense	1,369		1,369
Net income	34,589			34,589
Ending Balance at Jun. 30, 2014	$ 787,242	$ 747	$ 732,587	$ 64,673	$ (10,765)
Ending Balance, shares at Jun. 30, 2014	73,327,906	74,658,000			1,330,000