Net Earnings Per Share Net 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]

Net Earnings Per Share

The following table sets forth the reconciliation of the numerator and denominator utilized in the computation of basic and diluted earnings per share (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Numerator for earnings per share:
Net earnings for basic and diluted earnings per share	$	51,413	$	45,368	$	93,984	$	46,493
Denominator for earnings per share:
Weighted average number of common shares outstanding	136,865		137,861		136,613		137,686
Assumed exercise of stock options and vesting of restricted stock awards, net of shares assumed reacquired under the treasury stock method	1,584		1,132		1,653		1,146
Diluted shares outstanding	138,449		138,993		138,266		138,832