Consolidated Statement of Total Equity (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Retained Earnings	Total Shareholders' Equity	Noncontrolling Interests
Beginning Balance at Dec. 31, 2014	$ 4,352,748	$ 671	$ 3,243,619	$ (106,159)	$ 1,213,035	$ 4,351,166	$ 1,582
Beginning Balance (in shares) at Dec. 31, 2014		67,293,000
Consolidated net earnings	6,159				6,126	6,126	33
Other comprehensive (loss) earnings	(562)			(564)		(564)	2
Dividends declared	(28,354)				(28,354)	(28,354)
Issuances of common stock for stock award plans	9,286	2	9,284			9,286
Issuances of common stock for stock award plans (in shares)		182,000
Stock-based compensation expense	2,906		2,906			2,906
Ending Balance at Mar. 31, 2015	$ 4,342,183	$ 673	$ 3,255,809	$ (106,723)	$ 1,190,807	$ 4,340,566	$ 1,617
Ending Balance (in shares) at Mar. 31, 2015		67,475,000