Per Share Information (Reconciliation of the Numerators and Denominators of the Basic and Diluted Per Share Computations) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Per Share Information
Net income (loss) attributable to CCIC stockholders	$ 116,013	$ 30,871	$ 166,044	$ 70,888
Dividends on preferred stock	0	(5,202)	(2,629)	(10,403)
Net income (loss) attributable to CCIC stockholders after deduction of dividends on preferred stock for basic and diluted computations	$ 116,013	$ 25,669	$ 163,415	$ 60,485
Basic weighted-average number of common stock outstanding	290,649,000	285,280,000	287,781,000	286,139,000
Effect of assumed dilution from potential common shares relating to stock options and restricted stock awards	554,000	1,746,000	1,248,000	2,076,000
Diluted weighted-average number of common shares outstanding	291,203,000	287,026,000	289,029,000	288,215,000
Basic	$ 0.40	$ 0.09	$ 0.57	$ 0.21
Diluted	$ 0.40	$ 0.09	$ 0.57	$ 0.21