Income Taxes - Schedule of Other Taxes (Details) - USD ($) $ in Millions |
12 Months Ended | ||
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Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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Income Tax Disclosure [Abstract] | |||
Payroll taxes | $ 17.3 | $ 18.9 | $ 19.2 |
Property and franchise taxes | $ 4.7 | $ 4.8 | $ 4.9 |
X | ||||||||||
- Definition Payroll Tax Expense No definition available.
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X | ||||||||||
- Definition Real Estate and Franchise Tax Expense No definition available.
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X | ||||||||||
- References No definition available.
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