Shareholders' Equity Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Class of Stock [Line Items]
Net cash proceeds of common stock	$ 19	$ 59,427
At The Market Equity Program
Class of Stock [Line Items]
Aggregate offering price of common share	400,000
Remaining capacity to issue	$ 128,300