Commitments and Contingencies Management Agreement (Details)	9 Months Ended
	Sep. 30, 2019 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Percent per annum of equity used to calculate management fees	1.50%
Incentive fee calculation, core earnings multiplication factor	20.00%
Incentive fee calculation, rolling period	12 months
Incentive fee calculation, equity multiplication factor	8.00%
Incentive fee calculation, period incentive fee paid	9 months
Incentive fee, rolling period for threshold	3 years
Incentive fee, threshold amount of core earnings	$ 0
Management agreement, renewal term	1 year
Management agreement, termination fee factor	3
Management agreement, termination fee period	24 months