Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

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

	Three months ended June 30, 2017
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	14,616	83,294	$	0.18
Effect of restricted stock	—		44
Diluted EPS	$	14,616	83,338	$	0.18

	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

	Six months ended June 30, 2017
	Net Income (numerator)		Shares (denominator)	Per Share Amount
Basic EPS	$	28,653	83,293	$	0.34
Effect of restricted stock	—		44
Diluted EPS	$	28,653	83,337	$	0.34

	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