Investments in Preferred Stock (Tables)

9 Months Ended

Sep. 30, 2017

Investment in Preferred Stock [Abstract]

Schedule of Changes in Level 3 Investments

The following table summarizes the changes in the Level 3 investments in preferred stock during the nine months ended September 30, 2017.

	Nine Months Ended   September 30, 2017
Beginning balance	$	129,545
Purchase of preferred stock	766
Dividend income from investments in preferred stock	12,303
Unrealized appreciation in the fair value of the investments in preferred stock	5,885
Ending balance	$	148,499