XML 52 R40.htm IDEA: XBRL DOCUMENT v3.19.2
Income Taxes - Narrative (Details) - U.S. Federal, State and Local tax authorities - USD ($)
$ in Millions
Mar. 31, 2019
Dec. 31, 2018
Operating Loss Carryforwards [Line Items]    
Operating loss carry-forward   $ 100.5
Operating loss carry-forward available $ 46.0 $ 46.0