Condensed Consolidated Statement Of Stockholders' Equity (USD $) In Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Parent	Noncontrolling Interests
Balance value at Dec. 31, 2013	$ 2,456,243	$ 1	$ 2,077,828	$ 520,764	$ (145,544)	$ 2,453,049	$ 3,194
Balance shares at Dec. 31, 2013		105,900
Net income	21,852			21,724		21,724	128
Dividends on common shares	(38,368)			(38,368)		(38,368)
Shares issued in connection with share-based compensation plans, shares		802
Shares issued in connection with share-based compensation plans, value	3,634		3,958	(324)		3,634
Share-based compensation expense	9,397		9,397			9,397
Net activity related to noncontrolling interests	382		39			39	343
Other comprehensive income (Note 15)	10,051				10,048	10,048	3
Balance value at Mar. 31, 2014	$ 2,463,191	$ 1	$ 2,091,222	$ 503,796	$ (135,496)	$ 2,459,523	$ 3,668
Balance shares at Mar. 31, 2014		106,702