Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - 3 months ended Mar. 31, 2017 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Total stockholders' equity	Noncontrolling Interests
Balance value at Dec. 31, 2016	$ 3,014,349	$ 1	$ 2,191,756	$ 1,046,822	$ (230,400)	$ 3,008,179	$ 6,170
Balance shares at Dec. 31, 2016	109,944	109,944
Net income for three months ended March 31, 2017	$ 58,069	$ 0	0	58,282	0	58,282	(213)
Dividends on common shares	(37,495)	0	0	(37,495)	0	(37,495)	0
Shares issued in connection with share-based compensation plans, value	(5,947)	$ 0	(5,078)	(869)	0	(5,947)	0
Shares issued in connection with share-based compensation plans, shares		584
Share-based compensation	17,032	$ 0	17,032	0	0	17,032	0
Net activity related to noncontrolling interests	(841)	0	0	0	0	0	(841)
Other comprehensive income (Note 12)	32,418	0	0	0	32,411	32,411	7
Balance value at Mar. 31, 2017	$ 3,077,585	$ 1	$ 2,203,710	$ 1,066,740	$ (197,989)	$ 3,072,462	$ 5,123
Balance shares at Mar. 31, 2017	110,528	110,528