Earnings Per Common Share (Tables)

12 Months Ended

Dec. 31, 2019

Schedule of basic and diluted EPS calculations

The basic and diluted EPS calculations for the years ended December 31, 2019, 2018 and 2017 are presented below:



	Year Ended December 31,
(in thousands, except per share amounts)	2019		2018		2017
Income attributable to common stockholders	$	109,845	$	119,738	$	57,425

Weighted average common shares outstanding, basic	66,701		67,273		66,900
Effect of dilutive securities:
Restricted stock units (a)	509		324		235
Stock options	122		135		204
Restricted stock	—		16		65
Weighted average common shares outstanding, diluted	67,332		67,748		67,404

Basic income per common share	$	1.65	$	1.78	$	0.86
Diluted income per common share	$	1.63	$	1.77	$	0.85

(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 December 31, 2019, 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.



	Year Ended December 31,
(in thousands)	2019	2018	2017
Restricted stock units	—	85	—
Stock options	—	349	—
Restricted stock	—	—	—