Equity (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Common stock, shares authorized	100,000,000				100,000,000		60,000,000
At-The Market Shelf Registration, Equity Offering Sales Agreement, Aggregate Sales Price	$ 500,000				$ 500,000
Stock Issued During Period, Shares, New Issues				462,925	0	618,654
Stock Issued During Period, Value, New Issues	$ 206	$ 85	$ 11,942	$ 35,913
Authorized Shares, Prior to Charter Amendment [Member]
Common stock, shares authorized	60,000,000				60,000,000
Authorized Shares, After Charter Amendment [Member]
Common stock, shares authorized	100,000,000				100,000,000
Gross ATM Proceeds [Member]
Stock Issued During Period, Value, New Issues						$ 47,999