Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The table below sets forth the reconciliation between net income and the weighted average shares outstanding used for calculating basic and diluted EPS:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2018		2017		2018		2017
Earnings (numerator)
Net income attributable to common stockholders	$	25,068	$	13,179	$	43,594	$	14,396
Shares (denominator)
Weighted average common shares outstanding (basic)		49,680		48,518		49,509		48,418
Dilutive effect of stock options and stock awards outstanding		1,112		1,426		1,218		1,389
Adjusted weighted average common shares outstanding (diluted)		50,792		49,944		50,727		49,807
Earnings per share attributable to common stockholders
Basic	$	0.50	$	0.27	$	0.88	$	0.30
Diluted	$	0.49	$	0.26	$	0.86	$	0.29
Stock options and stock awards excluded from EPS   calculation because the effect would be anti-dilutive		24		854		13		801