CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Shares	Capital in Excess of Par Value	Accumulated Other Comprehensive Income	Retained Earnings	Treasury Shares	Non-controlling Interest	Total
Balance at Dec. 31, 2013	$ 324	$ 2,392,585	$ 216,140	$ 4,304,664	$ (944,627)	$ 12,091	$ 5,981,177
Balance (in shares) at Dec. 31, 2013	323,711
Increase (Decrease) in Equity
Net income (loss)				114,363		826	115,189
Dividends to shareholders				(23,792)			(23,792)
Redemption of subsidiary preferred stock				(1,688)			(1,688)
Other comprehensive income (loss), net of tax			(27,587)			(102)	(27,689)
Issuance of common shares for stock options exercised	$ 3	29,045					$ 29,048
Issuance of common shares for stock options exercised (in shares)	2,911						2,900
Share-based compensation		19,301					$ 19,301
Other	$ 1	(7,305)	(1)			(2,319)	(9,624)
Other (in shares)	1,512
Balance at Jun. 30, 2014	$ 328	2,433,626	188,552	4,393,547	(944,627)	10,496	6,081,922
Balance (in shares) at Jun. 30, 2014	328,134
Balance at Dec. 31, 2014	$ 328	2,452,261	77,522	3,573,172	(1,194,664)	10,170	4,918,789
Balance (in shares) at Dec. 31, 2014	328,196
Increase (Decrease) in Equity
Net income (loss)				86,813		(133)	86,680
Dividends to shareholders				(34,980)			(34,980)
Other comprehensive income (loss), net of tax			(52,366)			(718)	(53,084)
Issuance of common shares for stock options exercised		1,198					$ 1,198
Issuance of common shares for stock options exercised (in shares)	130						100
Share-based compensation		30,102					$ 30,102
Other	$ 3	(7,429)				(1,904)	(9,330)
Other (in shares)	2,317
Balance at Jun. 30, 2015	$ 331	$ 2,476,132	$ 25,156	$ 3,625,005	$ (1,194,664)	$ 7,415	$ 4,939,375
Balance (in shares) at Jun. 30, 2015	330,643