Income Taxes (Details) $ in Thousands  | 
3 Months Ended | 
|---|---|
| 
 Dec. 31, 2018  
USD ($) 
 | |
| Income Tax Disclosure [Abstract] | |
| Tax benefit related to TCJA | $ 11,300 | 
| X | ||||||||||
- Definition Tax Cuts And Jobs Act Of 2017 Incomplete Accounting Change In Tax Rate Deferred Tax Liability Provisional Income Tax Benefit No definition available. 
  | 
| X | ||||||||||
- References No definition available. 
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