Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Schedule of basic and diluted EPS calculations

The basic and diluted EPS calculations for the three and nine months ended September 30, 2020 and 2019 are presented below:

	Three Months Ended September 30,				Nine Months Ended September 30,
(in thousands, except per share amounts)	2020		2019		2020		2019
Income attributable to common stockholders	$	44,895	$	33,597	$	110,546	$	89,646
Weighted average common shares outstanding, basic	67,141		66,685		67,001		66,681
Effect of dilutive securities:
Restricted stock units (a)	682		544		602		450
Stock options	144		132		122		109
Weighted average common shares outstanding, diluted	67,967		67,361		67,725		67,240
Basic income per common share	$	0.67	$	0.50	$	1.65	$	1.34
Diluted income per common share	$	0.66	$	0.50	$	1.63	$	1.33

(a) Includes service-based and contingently issuable performance-based restricted stock units.