CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified		Total	Preferred stock	Common stock	Additional paid-in capital	Accumulated other comprehensive income (loss)	Retained earnings	Treasury shares
Balance at Dec. 31, 2012		$ 2,505,318	$ 169,920	$ 53,886	$ 490,339	$ 86,582	$ 1,738,957	$ (34,366)
Balance (in shares) at Dec. 31, 2012				53,885,886
Increase (Decrease) in Stockholders' Equity
Net income	[1]	174,897					174,897
Other comprehensive income (loss), net of tax		(96,937)				(96,937)
Issuance of shares under share-based compensation plans		21,546		514	11,742			9,290
Issuance of shares under share-based compensation plans (in shares)				514,161
Share-based employee compensation expense		13,241			13,241
Tax benefit from share-based compensation plans		3,646			3,646
Dividends: Preferred		(7,219)					(7,219)
Dividends: Common		(27,395)					(27,395)
Net change in deferred compensation plans		772			773			(1)
Change in redeemable noncontrolling interest		19			19
Balance at Sep. 30, 2013		2,587,888	169,920	54,400	519,760	(10,355)	1,879,240	(25,077)
Balance (in shares) at Sep. 30, 2013				54,400,047
Balance at Dec. 31, 2013		2,740,986	267,616	54,667	541,210	(15,641)	1,918,163	(25,029)
Balance (in shares) at Dec. 31, 2013				54,667,295
Increase (Decrease) in Stockholders' Equity
Net income	[1]	189,863					189,863
Other comprehensive income (loss), net of tax		8,049				8,049
Issuance of shares under share-based compensation plans		17,481		391	14,402			2,688
Issuance of shares under share-based compensation plans (in shares)				390,442
Share-based employee compensation expense		13,305			13,305
Tax benefit from share-based compensation plans		4,188			4,188
Dividends: Preferred		(12,281)					(12,281)
Dividends: Common		(54,877)					(54,877)
Net change in deferred compensation plans		882			884			(2)
Change in redeemable noncontrolling interest		(8,167)			(8,167)
Balance at Sep. 30, 2014		$ 2,899,429	$ 267,616	$ 55,058	$ 565,822	$ (7,592)	$ 2,040,868	$ (22,343)
Balance (in shares) at Sep. 30, 2014				55,057,737

[1] Net income excludes net income attributable to redeemable noncontrolling interest of $2,056 and $1,657 for the nine month periods ended September 30, 2014 and 2013, respectively. Redeemable noncontrolling interest is reflected in the mezzanine section of the consolidated balance sheets. See Note 17 of the Notes to the Unaudited Consolidated Financial Statements.