Contingent Liabilities - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) Tire	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Minimum estimated sale of passenger car, light truck, SUV, radial medium truck and motorcycle tires per year in North America | Tire			30,000,000
Maximum estimated sale of passenger car, light truck, SUV, radial medium truck and motorcycle tires per year in North America | Tire			35,000,000
Estimated number of Company produced tires of different specifications | Tire			300,000,000
Product liability expenses, Minimum			$ 0
Product liability expenses, Maximum			33,000,000
Increased its product liability reserve			24,663,000
Increase in product liability reserve due to self insured incidents			24,512,000
Increase (Decrease) in product liability reserve due to changes in estimated amounts on existing reserves			$ 151,000
Period for resolution of few cases			5 years
Company paid to resolve cases and claims	$ 8,371,000		$ 13,346,000
Product liability reserve balance	175,366,000		175,366,000		$ 163,890,000
Current portion product liability reserve balance	70,177,000		70,177,000		$ 74,018,000
Product liability expenses	$ 18,920,000	$ 21,065,000	$ 35,014,000	$ 43,537,000