XML 72 R58.htm IDEA: XBRL DOCUMENT v3.19.1
Investments in Securities and Fair Value Investments in Securities (Schedule of Carrying Value and Fair Value of Financial Assets) (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Financial Assets    
Cash $ 18,694 $ 20,214
Accrued interest and dividends 946 1,100
Equity securities, at fair value 48,489 47,367
Commercial paper and money market funds 32,787 23,780
Equity investments in unconsolidated affiliates, equity method 5,847 6,593
Equity investments in unconsolidated affiliates, measurement alternative 6,589 5,439
Assets, Fair Value Disclosure 113,352 104,493
Level 1    
Financial Assets    
Cash 18,694 20,214
Accrued interest and dividends 946 1,100
Equity securities, at fair value 48,489 47,367
Commercial paper and money market funds 32,787 23,780
Equity investments in unconsolidated affiliates, equity method 0 0
Equity investments in unconsolidated affiliates, measurement alternative 0 0
Assets, Fair Value Disclosure 100,916 92,461
Level 2    
Financial Assets    
Cash 0 0
Accrued interest and dividends 0 0
Equity securities, at fair value 0 0
Commercial paper and money market funds 0 0
Equity investments in unconsolidated affiliates, equity method 0 0
Equity investments in unconsolidated affiliates, measurement alternative 0 0
Assets, Fair Value Disclosure 0 0
Level 3    
Financial Assets    
Cash 0 0
Accrued interest and dividends 0 0
Equity securities, at fair value 0 0
Commercial paper and money market funds 0 0
Equity investments in unconsolidated affiliates, equity method 5,847 6,593
Equity investments in unconsolidated affiliates, measurement alternative 6,589 5,439
Assets, Fair Value Disclosure $ 12,436 $ 12,032