XML 34 R40.htm IDEA: XBRL DOCUMENT v3.20.1
Fixed Assets (Schedule Of Fixed Assets) (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment [Abstract]    
Fixed assets, at cost $ 697,531 $ 678,367
Less accumulated depreciation and amortization 325,418 312,058
Fixed assets, net $ 372,113 $ 366,309