Segment Reporting Information (Details) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Segment reporting information
Net sales	$ 922,207	$ 803,959	$ 1,828,169	$ 1,558,402
Operating profit	24,253	33,682	56,436	66,637
Interest expense	9,229	9,149	18,650	17,879
Interest income	(901)	(771)	(1,570)	(1,984)
Other income	(143)	(988)	(5,648)	(1,225)
Income from continuing operations before income taxes	16,068	26,292	45,004	51,967
North American Tire [Member]
Segment reporting information
Net sales	666,816	574,968	1,314,760	1,106,685
Operating profit	3,675	19,680	25,204	33,282
International Tire [Member]
Segment reporting information
Net sales	395,620	312,156	759,042	605,713
Operating profit	23,300	20,528	43,372	43,078
Eliminations [Member]
Segment reporting information
Net sales	(140,229)	(83,165)	(245,633)	(153,996)
Operating profit	(990)	42	(2,733)	(467)
Unallocated Corporate Charges [Member]
Segment reporting information
Operating profit	$ (1,732)	$ (6,568)	$ (9,407)	$ (9,256)