(14) Earnings Per Share

Basic earnings per share is computed by dividing income available to common stockholders by the weighted average number of common shares outstanding for the period. Diluted earnings per share reflects the potential dilution that would occur if securities or other contracts to issue common stock were exercised or converted into common stock; however, potential common equivalent shares are excluded if their effect is anti-dilutive.

The following table sets forth the reconciliation of basic and diluted net income per share for the three months ended March 31, 2018 and 2017 (in thousands, except per share data):




	Three Months Ended March 31,
	2018		2017
Numerator
Net income attributable to CAI common stockholders	$	17,117	$	5,272
Denominator
Weighted-average shares used in per share computation - basic		20,414		19,010
Effect of dilutive securities:
Stock options and restricted stock		258		221
Weighted-average shares used in per share computation - diluted		20,672		19,231

Net income per share attributable to CAI common stockholders:
Basic	$	0.84	$	0.28
Diluted	$	0.83	$	0.27

The calculation of diluted earnings per share for the three months ended March 31, 2018 and 2017, excluded from the denominator 160,528 and 1,066,787 shares, respectively, of common stock options because their effect would have been anti-dilutive.