CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net income	$ 31,011	$ 78,596	$ 72,060
Other comprehensive income, net of tax:
Foreign currency translation adjustments	(117)	(391)	2,010
Comprehensive income before preferred stock dividends	30,894	78,205	74,070
Dividends on preferred stock	(8,829)	(5,124)
Comprehensive income available to CAI common stockholders	$ 22,065	$ 73,081	$ 74,070