Per Share Information (Reconciliation of the Numerators and Denominators of the Basic and Diluted Per Share Computations) (Details) (USD $) In Thousands, except Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Per Share Information
Net income (loss) attributable to CCIC stockholders	$ 51,278	$ (135,009)	$ 122,166	$ (351,813)
Dividends on preferred stock and losses on purchases of preferred stock	(7,541)	(5,201)	(17,944)	(15,604)
Net income (loss) attributable to CCIC stockholders after deduction of dividends on preferred stock for basic and diluted computations	$ 43,737	$ (140,210)	$ 104,222	$ (367,417)
Basic weighted-average number of common stock outstanding	282,031,000	286,119,000	284,770,000	286,883,000
Effect of assumed dilution from potential common shares relating to stock options and restricted stock awards	1,868,000	0	2,098,000	0
Diluted weighted-average number of common shares outstanding	283,899,000	286,119,000	286,868,000	286,883,000
Basic	$ 0.16	$ (0.49)	$ 0.37	$ (1.28)
Diluted	$ 0.15	$ (0.49)	$ 0.36	$ (1.28)