CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (USD $) In Thousands	Total	Common Stock	Restricted Stock	Additional Paid-In Capital	Retained Earnings	Accumulated other Comprehensive Loss
Beginning Balance at Dec. 31, 2012	$ 565,670	$ 1	$ 18,062	$ 67,422	$ 566,318	$ (86,133)
Beginning Balance (in shares) at Dec. 31, 2012		41,660	261
Net income	46,424				46,424
Other comprehensive income, net of tax	1,554					1,554
Restricted stock activity (in shares)		3	(8)
Restricted stock activity	1,011		1,011
Ending Balance at Mar. 31, 2013	$ 614,659	$ 1	$ 19,073	$ 67,422	$ 612,742	$ (84,579)
Ending Balance (in shares) at Mar. 31, 2013		41,663	253