• Filing Date: 2018-05-10
  • Form Type: 10-Q
  • Description: Quarterly report
v3.8.0.1
Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Income Tax Disclosure [Abstract]    
Effective tax rate (as percent) 0.00% 0.00%
Accounting Standards Update 2016-06    
Tax Credit Carryforward [Line Items]    
Elimination of deferred income tax charge as result of adoption of new accounting guidance $ 17.6