Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Schedule of basic and diluted EPS calculations

The basic and diluted EPS calculations for the three months ended March 31, 2020 and 2019 are presented below:

	Three Months Ended March 31,
(in thousands, except per share amounts)	2020		2019
Income attributable to common stockholders	$	22,029	$	20,350
Weighted average common shares outstanding, basic	66,839		66,782
Effect of dilutive securities:
Restricted stock units (a)	670		415
Stock options	134		85
Weighted average common shares outstanding, diluted	67,643		67,282
Basic income per common share	$	0.33	$	0.30
Diluted income per common share	$	0.33	$	0.30

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

Schedule of anti-dilutive securities excluded from computation of earnings per share

The following table provides the securities that could potentially dilute EPS in the future, but were not included in the computation of diluted EPS for the periods presented because to do so would have been anti-dilutive. The amounts included in this table exclude performance-based restricted stock units. As of March 31, 2020, the number of currently outstanding performance-based restricted stock units that are issued upon vesting could range from zero to a maximum of 0.9 million.

	Three Months Ended March 31,
(in thousands)	2020	2019
Stock options	—	212
Restricted stock units	44	383