CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net income	$ 13,494	$ 16,931	$ 27,725	$ 32,998
Other comprehensive income, net of tax:
Foreign currency translation adjustments	(76)	189	(11)	(990)
Comprehensive income	13,418	17,120	27,714	32,008
Comprehensive loss attributable to non-controlling interest	(48)		(8)
Comprehensive income attributable to CAI common stockholders	$ 13,370	$ 17,120	$ 27,706	$ 32,008