Commitments and Contingencies - Insurance (Detail) - USD ($) $ in Thousands |
Sep. 30, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Commitment And Contingencies [Line Items] | ||
| Insurance and other non-current liabilities | $ 388,395 | $ 342,356 |
| Insurance Claims | ||
| Commitment And Contingencies [Line Items] | ||
| Gross amount accrued for insurance claims | 245,500 | 254,700 |
| Insurance and other non-current liabilities | 186,900 | 200,000 |
| Related insurance recoveries/receivables | 36,900 | 50,400 |
| Related insurance recoveries/receivables included in prepaid expenses and other current assets | 300 | 400 |
| Related insurance recoveries/receivables included in other assets net | 36,600 | $ 50,000 |
| Atlantic Bridge Project Insurance Claim | ||
| Commitment And Contingencies [Line Items] | ||
| Related insurance recoveries/receivables | $ 11,300 |
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- Definition Commitment And Contingencies [Line Items] No definition available.
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- Definition Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy. No definition available.
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- Definition Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Carrying amount due after one year of the balance sheet date (or one operating cycle, if longer) of amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount needed to reflect the estimated ultimate cost of settling claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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