CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - 6 months ended Jun. 30, 2015 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Restricted Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2014	$ 947,830	$ 1	$ 30,935	$ 67,422	$ 1,035,716	$ (186,244)
Beginning Balance (in shares) at Dec. 31, 2014		83,742	564
Net income	100,600				100,600
Other comprehensive income, net of tax	(4,621)					(4,621)
Excess tax benefits on stock compensation plan	295		$ 295
Restricted stock activity	3,414		$ 3,414
Restricted stock activity (in shares)		58	(67)
Ending Balance at Jun. 30, 2015	$ 1,047,518	$ 1	$ 34,644	$ 67,422	$ 1,136,316	$ (190,865)
Ending Balance (in shares) at Jun. 30, 2015		83,800	497