Equity - Common Stock ATM (Details) - USD ($) $ / shares in Units, $ in Thousands			9 Months Ended	12 Months Ended
	Jan. 16, 2020	Jan. 13, 2020	Sep. 30, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Common Stock, Shares Authorized			300,000,000	300,000,000
Net proceeds from the sale of common stock	$ 173,100
Sale of Stock, Number of Shares Issued in Transaction		10,062,500
Shares Issued, Price Per Share		$ 30.9022
Warrant [Member]
Class of Stock [Line Items]
Sale of Stock, Number of Shares Issued in Transaction		4,462,500
Common Stock
Class of Stock [Line Items]
Sale of Stock, Number of Shares Issued in Transaction		5,600,000
At The Market Program 2019 $600 Million
Class of Stock [Line Items]
Common Stock Value Authorized under Stock Offering Program			$ 600,000
At The Market Program 2019 $600 Million | Common Stock
Class of Stock [Line Items]
Aggregate value of common stock available to be sold under the ATM			$ 318,248
Number of shares sold			0	9,711,706
Net proceeds from the sale of common stock				$ 279,156
Over-Allotment Option
Class of Stock [Line Items]
Sale of Stock, Number of Shares Issued in Transaction		1,312,500
Weighted Average | At The Market Program 2019 $600 Million | Common Stock
Class of Stock [Line Items]
Sale of Stock, Price Per Share				$ 29.01