Earnings Per Common Share

6 Months Ended

Jun. 30, 2015

2. Earnings Per Common Share

Basic earnings per common share are calculated by dividing net income by the weighted average number of common shares outstanding during the period. Diluted earnings per common share adjust basic earnings per common share for the effects of potentially dilutive common shares. Potentially dilutive common shares include the dilutive effects of shares issuable under our equity compensation plans, including stock options and restricted stock, each using the treasury stock method.


	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
Numerator—basic and diluted
Net income	$	21,709	$	17,247	$	45,395	$	35,364

Denominator
Weighted average number of common shares outstanding—basic		40,792		39,681		40,607		39,560
Effect of dilutive stock options		451		288		414		322
Effect of dilutive restricted shares		453		781		508		722

Weighted average number of common shares outstanding—diluted		41,696		40,750		41,529		40,604

Earnings per common share—basic	$	0.53	$	0.43	$	1.12	$	0.89

Earnings per common share—diluted	$	0.52	$	0.42	$	1.09	$	0.87

Antidilutive stock options and restricted shares		1,524		3,637		1,849		3,408