Selected Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2018

Selected Quarterly Financial Data [Abstract]

Schedule Of Key Interim Financial Information

	2018 Quarters Ended								2017 Quarters Ended
	Dec. 31		Sept. 30		June 30		Mar. 31		Dec. 31		Sept. 30		June 30		Mar. 31
Revenue	$	115,567	$	115,452	$	105,705	$	95,374	$	94,034	$	90,161	$	82,692	$	81,506
Operating expenses		72,578		72,571		65,786		60,658		57,631		58,267		57,924		63,555
Operating income		42,989		42,881		39,919		34,716		36,403		31,894		24,768		17,951
Net income attributable to
CAI common stockholders		17,200		20,006		19,149		17,117		36,563		17,587		12,638		5,272
Net income per share attributable
to CAI common stockholders:
Basic	$	0.90	$	1.04	$	0.98	$	0.84	$	1.86	$	0.92	$	0.66	$	0.28
Diluted	$	0.89	$	1.03	$	0.97	$	0.83	$	1.81	$	0.90	$	0.65	$	0.27