Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

Reconciliation Of Basic And Diluted Net Income Per Share

	Year Ended December 31,
	2013		2012		2011
Numerator
Net income attributable to CAI common stockholders used in the calculation
of basic and diluted earnings per share	$	63,926	$	63,465	$	50,189
Denominator
Weighted-average shares used in the calculation of basic earnings per share		22,157		19,495		19,295
Effect of dilutive securities:
Stock options and restricted stock		515		450		398
Weighted-average shares used in the calculation of diluted earnings per share		22,672		19,945		19,693
Net income per share attributable to CAI common stockholders:
Basic	$	2.89	$	3.26	$	2.60
Diluted	$	2.82	$	3.18	$	2.55