CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]
Balance at Dec. 31, 2009	$ 339,070	$ 87,364	$ 956,401	$ 2,756	$ (245,519)	$ (473,391)	$ 11,459
Balance (in shares) at Dec. 31, 2009		349,456				(37,128)
Acquisition of the Acquired Business (in shares)		678,530
Acquisition of the Acquired Business	5,217,899	169,633	5,048,266	0	0	0	0
Stock plans (in shares)						3,025
Stock plans	8,285	0	(31,927)	0	0	40,212	0
Dividends on common stock	(343,042)	0	(264,720)	(78,322)	0	0	0
Net income	109,095	0	0	106,681	0	0	2,414
Other comprehensive income, net of tax	4,172	0	0	0	4,172	0	0
Distributions	(1,500)	0	0	0	0	0	(1,500)
Balance at Sep. 30, 2010	5,333,979	256,997	5,708,020	31,115	(241,347)	(433,179)	12,373
Balance (in shares) at Sep. 30, 2010		1,027,986				(34,103)
Stock plans (in shares)						(28)
Stock plans	3,691	0	3,798	0	0	(107)	0
Dividends on common stock	(186,347)	0	(186,347)	0	0	0	0
Net income	46,622	0	0	45,992	0	0	630
Other comprehensive income, net of tax	11,798	0	0	0	11,798	0	0
Balance at Dec. 31, 2010	5,209,743	256,997	5,525,471	77,107	(229,549)	(433,286)	13,003
Balance (in shares) at Dec. 31, 2010		1,027,986				(34,131)
Stock plans (in shares)						1,282
Stock plans	8,964	0	(9,325)	0	0	18,289	0
Dividends on common stock	(559,803)	0	(559,803)	0	0	0	0
Net income	112,360	0	0	107,367	0	0	4,993
Other comprehensive income, net of tax	8,324	0	0	0	8,324	0	0
Distributions	(3,000)	0	0	0	0	0	(3,000)
Balance at Sep. 30, 2011	$ 4,776,588	$ 256,997	$ 4,956,343	$ 184,474	$ (221,225)	$ (414,997)	$ 14,996
Balance (in shares) at Sep. 30, 2011		1,027,986				(32,849)