Marketable Equity Securities (Tables)
|9 Months Ended|
Sep. 30, 2018
|Investments Debt And Equity Securities [Abstract]|
|Schedule of Investments in Marketable Equity Securities||
Investments in marketable equity securities as of September 30, 2018 consisted of the following:
Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.
No definition available.