Contingent Liabilities - Additional Information (Detail)
Tire in Millions |
3 Months Ended |
|
|
Mar. 31, 2018
USD ($)
Tire
|
Mar. 31, 2017
USD ($)
|
Dec. 31, 2017
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
|
|
|
| Maximum estimated sale of passenger car, 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
|
|
|
| Product liability reserve balance |
130,862,000
|
|
$ 129,892,000
|
| Increase in product liability reserve due to self insured incidents |
11,003,000
|
|
|
| Increase (decrease) in product liability reserve due to changes in estimated amounts on existing reserves |
267,000
|
|
|
| Company paid to resolve cases and claims |
10,300,000
|
|
|
| Current portion product liability reserve balance |
44,960,000
|
|
$ 44,700,000
|
| Product liability expenses |
$ 15,068,000
|
$ 16,268,000
|
|