Property and Equipment, Net (Detail Textuals) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Property Plant And Equipment [Abstract] | |||
| Depreciation expense | $ 534.9 | $ 478.7 | $ 411.4 |
| Repairs and maintenance expenses including Dry-dock expenses | 199.5 | 157.2 | 155.4 |
| Interest costs capitalized | $ 30.4 | $ 29.0 | $ 33.7 |
| X | ||||||||||
- Definition The aggregate costs of keeping the property in good condition but that do not appreciably prolong the life or increase the value of the property. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of interest capitalized during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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