XML 47 R35.htm IDEA: XBRL DOCUMENT v3.20.2
Investments - Other Investments (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Investments [Abstract]    
SERP investments at fair value $ 2,096 $ 2,278
Cost method investments 9,993 9,497
Equity method investments 572 613
Total investments $ 12,661 $ 12,388