Summary of Significant Accounting Policies (Details) $ in Millions |
12 Months Ended |
|---|---|
|
Dec. 31, 2017
USD ($)
| |
| Summary of Significant Accounting Policies | |
| Provisional deferred tax expense | $ 117.3 |
| X | ||||||||||
- Definition Amount of reasonable estimate for income tax expense (benefit) for remeasurement of deferred tax from change in tax rate pursuant to Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete. No definition available.
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| X | ||||||||||
- References No definition available.
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