Contingent Liabilities - Additional Information (Detail) Tire in Millions	12 Months Ended
	Dec. 31, 2017 USD ($) Tire	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Minimum estimated sale of passenger, light truck, SUV, radial medium truck and motorcycle tires per year in North America | Tire	30
Maximum estimated sale of passenger, light truck, SUV, radial medium truck and motorcycle tires per year in North America | Tire	35
Estimated number of Company produced tires of different specifications | Tire	300
Product liability expenses, minimum	$ 0
Product liability expenses, maximum	33,000,000
Increase in product liability reserve due to self insured incidents	48,039,000
Settlements and changes in amount of reserves estimated liability increase (decrease)	38,938,000
Company paid to resolve cases and claims	55,671,000	$ 31,697,000
Product liability reserve balance	129,892,000	176,995,000
Current portion product liability reserve balance	44,700,000	58,054,000
Product liability expenses	$ 25,970,000	$ 65,448,000	$ 78,800,000
Workforce subject to collective bargaining units (as a percent)	40.00%