Insurance Claims - Additional Information (Details) - USD ($) |
3 Months Ended | 12 Months Ended | 114 Months Ended | ||
|---|---|---|---|---|---|
Sep. 30, 2008 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2017 |
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| Insurance [Abstract] | |||||
| Retention amount per occurrence | $ 10,000,000 | ||||
| Maximum insurance coverage policy limit due to named windstorms for per incident | 150,000,000 | ||||
| Maximum insurance coverage policy limit except for property damage due to named windstorms | $ 250,000,000 | ||||
| Insurance reimbursements | $ 31,700,000 | $ 10,200,000 | $ 200,000 | ||
| Cumulative insurance recoveries related to hurricanes | $ 203,100,000 | ||||
| Outstanding hurricane claims | $ 0 | $ 0 | |||
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable to insurance entities to mitigate potential loss from various risks or to satisfy a promise to provide certain coverage's to employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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- Definition The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of cash inflow for proceeds from settlement of insurance claim, classified as operating activities. Excludes insurance settlement classified as investing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Stated amount that is the upper retention limit per entity policy. No definition available.
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- Definition Maximum coverage per incident except property damage. No definition available.
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| X | ||||||||||
- Definition Maximum Insurance coverage policy limit due to named windstorms for per Incident. No definition available.
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