CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Stock and Additional Paid-In Capital	Retained Earnings	Cumulative Translation Adjustment	Retirement Benefits Adjustment	Cumulative Unrealized Gain (Loss) on Derivatives	Treasury Stock
Balance at Dec. 31, 2013	$ 1,572,989	$ 608,658	$ 1,293,740	$ 52,211	$ (23,857)	$ (31,659)	$ (326,104)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	217,766		217,766
Cumulative translation adjustment	(41,530)			(41,530)
Pension and other postretirement adjustments (net of tax of $834)	2,570				2,570
Amortization of forward starting swaps (net of tax of $1,979)	3,453					3,453
Issuance of 503,046 shares of common stock from issuance of unvested shares, exercise of stock options and deferred compensation plans	13,756	13,756
Excess tax benefit from share-based compensation	5,360	5,360
Repurchase of 1,984,337 shares of common stock	(149,692)						(149,692)
Shares surrendered for tax withholding	(4,903)						(4,903)
Share-based compensation	13,165	13,165
Cash dividends declared - $.56 per common share	(45,034)		(45,034)
Balance at Sep. 30, 2014	$ 1,587,900	$ 640,939	$ 1,466,472	$ 10,681	$ (21,287)	$ (28,206)	$ (480,699)