Business Segments - Segment Financial Information (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Net sales	$ 728,271	$ 764,850	$ 496,259	$ 531,694	$ 750,212	$ 704,134	$ 679,130	$ 619,163	$ 2,521,074	$ 2,752,639	$ 2,808,062
Operating profit (loss)	60,291	171,507	5,311	(6,228)					230,881	174,455	165,245
Interest expense	(5,793)	(5,400)	(6,507)	(5,007)	(7,590)	(7,476)	(7,810)	(8,314)	(22,707)	(31,189)	(32,181)
Interest income	664	559	650	1,696	2,571	1,507	1,999	3,380	3,569	9,458	10,216
Other pension and postretirement benefit expense	(10,007)	(5,621)	(5,582)	(4,210)	(13,355)	(9,562)	(9,288)	(9,362)	(25,419)	(41,567)	(27,806)
Other non-operating income (expense)	901	2,303	(397)	1,773	(892)	(509)	(1,463)	1,380	4,579	(1,485)	(1,416)
Income before income taxes	46,056	163,348	(6,525)	(11,976)	44,317	36,729	15,109	13,515	190,903	109,672	114,058
Consolidated depreciation and amortization expense									158,847	148,054	147,161
Consolidated assets	2,971,573				2,802,338				2,971,573	2,802,338	2,634,205
Consolidated expenditures for long-lived assets									151,198	202,722	193,299
Americas Tire
Segment Reporting Information [Line Items]
Net sales									2,148,828	2,315,497	2,330,457
International Tire
Segment Reporting Information [Line Items]
Net sales									372,246	437,143	477,621
Operating Segments
Segment Reporting Information [Line Items]
Operating profit (loss)					63,583	52,769	31,671	26,431
Operating Segments | Americas Tire
Segment Reporting Information [Line Items]
Net sales	628,773	659,538	425,523	457,055	654,526	601,957	582,307	514,936	2,170,889	2,353,726	2,362,646
Operating profit (loss)	72,378	175,747	21,808	10,416	84,209	67,941	46,814	38,789	280,349	237,753	229,500
Consolidated depreciation and amortization expense									93,469	95,761	93,978
Consolidated assets	1,478,125				1,543,779				1,478,125	1,543,779	1,513,534
Consolidated expenditures for long-lived assets									114,565	111,819	112,444
Operating Segments | International Tire
Segment Reporting Information [Line Items]
Net sales	136,191	142,153	100,924	102,387	119,434	132,270	138,514	143,785	481,655	534,003	640,976
Operating profit (loss)	3,234	8,766	1,447	(10,279)	(5,924)	(4,831)	(1,296)	(1,339)	3,167	(13,390)	(14,044)
Consolidated depreciation and amortization expense									41,654	31,654	34,564
Consolidated assets	736,877				739,076				736,877	739,076	662,226
Consolidated expenditures for long-lived assets									31,383	62,334	71,667
Eliminations
Segment Reporting Information [Line Items]
Net sales	(36,693)	(36,841)	(30,188)	(27,748)	(23,748)	(30,093)	(41,691)	(39,558)	(131,470)	(135,090)	(195,560)
Operating profit (loss)	607	349	511	586	484	710	(569)	(566)	2,055	60	1,353
Eliminations | Americas Tire
Segment Reporting Information [Line Items]
Net sales									22,061	38,229	32,189
Eliminations | International Tire
Segment Reporting Information [Line Items]
Net sales									109,409	96,860	163,355
Corporation
Segment Reporting Information [Line Items]
Operating profit (loss)	(15,928)	$ (13,355)	$ (18,455)	$ (6,951)	(15,186)	$ (11,051)	$ (13,278)	$ (10,453)	(54,690)	(49,968)	(51,564)
Consolidated depreciation and amortization expense									23,724	20,639	18,619
Consolidated assets	$ 756,571				$ 519,483				756,571	519,483	458,445
Consolidated expenditures for long-lived assets									$ 5,250	$ 28,569	$ 9,188