XML 46 R103.htm IDEA: XBRL DOCUMENT v3.20.1
Rental Expense And Contractual Commitments (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Leases, Operating [Abstract]      
Rental expenses for continuing operations from the consecutive year $ 5.6 $ 5.2 $ 4.4