Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Reconciliation Of Basic And Diluted Net Income Per Share

	Year Ended December 31,
	2014		2013		2012
Numerator
Net income attributable to CAI common stockholders used in the calculation
of basic and diluted earnings per share	$	60,274	$	63,926	$	63,465
Denominator
Weighted-average shares used in the calculation of basic earnings per share		20,732		22,157		19,495
Effect of dilutive securities:
Stock options and restricted stock		423		515		450
Weighted-average shares used in the calculation of diluted earnings per share		21,155		22,672		19,945
Net income per share attributable to CAI common stockholders:
Basic	$	2.91	$	2.89	$	3.26
Diluted	$	2.85	$	2.82	$	3.18