Permanent and Temporary Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Temporary Equity [Line Items]
Common stock outstanding percentage of beneficial ownership acquired threshold for excess shares		9.00%
Preferred stock outstanding percentage of beneficial ownership acquired threshold for excess shares		9.90%
Maximum deferral payment period of purchase price for excess shares		5 years
Number of excess shares held by trustee		0
At The Market Equity Offering Program [Member]
Temporary Equity [Line Items]
Equity offering program, authorized offering amount		$ 1,000,000
Equity offering program, remaining authorized offering amount		$ 755,500
Stock issued during period, shares, new issues, equity offering program		1,500,000	2,700,000
Shares Issued, Price Per Share		$ 44.88	$ 66.75
Stock Issued During Period, Shares, New Issues				0
June 2019 Registered Public Offering [Member]
Temporary Equity [Line Items]
Shares Issued, Price Per Share	$ 62.75
Stock Issued During Period, Shares, New Issues	12,700,000