Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share [Abstract]
Net income	$ 14,377	$ 17,611
Basic	83,369	87,791
Basic EPS, Per Share Amount	$ 0.17	$ 0.20
Effect of restricted stock	$ 0	$ 0
Effect of restricted stock, Shares	91	174
Diluted EPS, Net Income	$ 14,377	$ 17,611
Diluted EPS, Shares	83,460	87,965
Diluted EPS, Per Share Amount	$ 0.17	$ 0.20