Summary of Significant Accounting Policies - Insurance (Detail) |
9 Months Ended |
|---|---|
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Sep. 30, 2018
USD ($)
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| Accounting Policies [Abstract] | |
| Employer's liability claims subject to deductible per occurrence | $ 1,000,000.0 |
| Worker's compensation claims per occurrence | 5,000,000.0 |
| Auto liability insurance claims deductible | 10,000,000.0 |
| General liability insurance claims deductible | 10,000,000 |
| Employee health care benefit plans subject to deductible per claimant | $ 500,000 |
| X | ||||||||||
- Definition Auto liability insurance claims deductible amount per occurrence. No definition available.
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| X | ||||||||||
- Definition Employer's liability claims deductible amount per occurrence. No definition available.
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| X | ||||||||||
- Definition General liability insurance claims deductible amount per occurrence. No definition available.
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| X | ||||||||||
- Definition Health care deductible. No definition available.
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| X | ||||||||||
- Definition Workers' compensation insurance claims deductible. No definition available.
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| X | ||||||||||
- References No definition available.
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