|3 Months Ended|
Mar. 31, 2019
|Business Combinations [Abstract]|
|Accounting Method, Carrying Value and Underlying Equity in Net Assets of Unconsolidated Investments||The following table reflects the accounting method, carrying value and underlying equity in net assets of our unconsolidated investments as of March 31, 2019:
|Schedule of Net Gains and Losses on Equity Securities||Net gains and losses on our equity securities for the three months ended March 31, 2019 are as follows:
A table of investments, shown as a text block.
Reference 1: http://www.xbrl.org/2003/role/presentationRef