Unaudited Condensed Consolidated Statement of Equity Statement (USD $)
In Thousands
Total
Common Stock [Member]
Treasury Stock [Member]
Capital in Excess of Par Value [Member]
Accumulated Deficit [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Noncontrolling Interest [Member]
Balance at beginning of period at Dec. 31, 2009$ 1,482,788$ 254,027$ (10)$ 1,735,493$ (603,876)$ 97,142$ 12
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]       
Net income90,23200089,9620270
Dividends declared on common stock(29,830)00(29,830)000
Foreign currency translation4,76300004,7612
Employee share-based compensation earned6,714006,714000
Stock option exercises1,46938901,080000
Tax benefits related to share based awards86800868000
Restricted stock awards, net of forfeitures05320(532)000
Purchase of Company common stock(86,871)0(10,358)(76,513)000
Other611360548000
Balance at end of period at Sep. 30, 20101,470,744254,951(10,308)1,637,828(513,914)101,903284
Balance at beginning of period at Dec. 31, 20101,479,948242,020(985)1,603,112(477,459)112,768492
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]       
Net income101,682   100,353 1,329
Dividends declared on common stock(35,140)  (35,140)   
Foreign currency translation(13,229)    (13,216)(13)
Employee share-based compensation earned6,843  6,843   
Stock option exercises7,6941,137 6,557   
Restricted stock awards, net of forfeitures0539 (539)   
Purchase of Company common stock(146,590) (14,785)(109,914)(21,891)  
Acquisition18,857     18,857
Noncontrolling interest payment(568)     (568)
Other75272 680   
Balance at end of period at Sep. 30, 2011$ 1,420,249$ 243,768$ (15,770)$ 1,471,599$ (398,997)$ 99,552$ 20,097