Income Taxes (Details)  | 
6 Months Ended | |
|---|---|---|
Jun. 30, 2019  | 
Jun. 30, 2018  | 
|
| Effective statutory federal income tax rate | 21.00% | 21.00% | 
| Effective Income Tax Rate, Continuing Operations | 24.70% | 25.30% | 
| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
  | 
| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
  |