XML 40 R39.htm IDEA: XBRL DOCUMENT v3.19.3
Commitments and Contingencies (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Commitments And Contingencies Disclosure [Abstract]        
Weighted average remaining lease term 32 years 2 months 12 days   32 years 2 months 12 days  
Weighted average discount rate 5.70%   5.70%  
Rent expense $ 0.4 $ 0.4 $ 1.3 $ 0.8