CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning Balance at Dec. 31, 2016					$ (438,717)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 195,188
Other comprehensive loss	163,267
Ending Balance at Oct. 01, 2017					(275,450)
Beginning Balance (in shares) at Dec. 31, 2017		46,871				1,704
Beginning Balance at Dec. 31, 2017	2,430,531	$ 46,871	$ 591,721	$ 2,285,886	(265,091)	$ (228,856)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	110,212			110,212
Cash dividends ($1.02 per share)	(46,526)			(46,526)
Other comprehensive loss	(24,076)				(24,076)
Settlements of warrants (in shares)						(412)
Settlements of warrants	(40)		(56,115)			$ 56,075
Shares issued under compensation plans (in shares)		(321)				(47)
Shares issued under compensation plans	33,020	$ 321	$ 29,315			$ 3,384
Deferred compensation (in shares)			(398)			(10)
Deferred compensation	868					$ 470
Ending Balance (in shares) at Sep. 30, 2018		47,192				1,235
Ending Balance at Sep. 30, 2018	$ 2,507,065	$ 47,192	$ 565,319	$ 2,352,648	$ (289,167)	$ (168,927)