Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Three months ended June 30, 2016
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	16,368	83,248	$	0.20
Effect of restricted stock	—		71
Diluted EPS	$	16,368	83,319	$	0.20

	Three months ended June 30, 2015
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	23,316	87,814	$	0.27
Effect of restricted stock	—		153
Diluted EPS	$	23,316	87,967	$	0.27

	Six Months Ended June 30, 2016
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	30,745	83,308	$	0.37
Effect of restricted stock	—		82
Diluted EPS	$	30,745	83,390	$	0.37

	Six Months Ended June 30, 2015
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	40,928	87,802	$	0.47
Effect of restricted stock	—		164
Diluted EPS	$	40,928	87,966	$	0.47