Earnings per share

9 Months Ended

Sep. 30, 2018

Earnings per share

Earnings per share

10.Earnings per Share

The following table sets forth the computation of basic and diluted net income per share (in thousands, except per share amounts):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2018		2017		2018		2017
Net income	$	34,937	$	20,616	$	124,232	$	67,506
Less net income allocated to non-controlling interests		(17)		—		(17)		—
Less net income allocated to participating securities:
Non-forfeitable dividends on participating securities		(89)		(80)		(268)		(269)
Income allocated to participating securities		(49)		—		(236)		(12)
Total net income allocated to participating securities		(138)		(80)		(504)		(281)
Net income available to common stockholders		34,782		20,536		123,711		67,225
Effect of dilutive securities:
Participating securities		138		80		504		281
Net income for diluted net income per share	$	34,920	$	20,616	$	124,215	$	67,506
Shares for basic net income per share		39,487		39,428		39,470		39,403
Effect of dilutive securities:
Stock options		4		9		3		11
Performance-based stock units		217		170		217		170
Participating securities		157		141		155		154
Total effect of dilutive securities		378		320		375		335
Shares for diluted net income per share		39,865		39,748		39,845		39,738
Basic net income per share	$	0.88	$	0.52	$	3.13	$	1.71
Diluted net income per share	$	0.88	$	0.52	$	3.12	$	1.70