Stockholders' Equity - Narrative (Details) - USD ($)	1 Months Ended		12 Months Ended
	May 31, 2020	Mar. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Oct. 31, 2020	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares authorized (in shares)			300,000,000	300,000,000
Preferred stock, shares authorized (in shares)			100,000,000	100,000,000
Preferred stock, shares issued (in shares)			0	0
Preferred stock, shares outstanding (in shares)			0	0
Issuance of common stock in public offering of common stock, shares (in shares)	2,587,500	2,985,575
Issuance of common stock in public offering of common stock, net	$ 1,700,000,000	$ 1,200,000,000
Short term dividend payable			$ 12,027,000	$ 10,873,000
Long term dividend payable			9,750,000	7,947,000
Special Distribution
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Short term dividend payable			12,000,000	10,900,000
Long term dividend payable			$ 9,700,000	$ 7,900,000
2018 ATM Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock in public offering of common stock, shares (in shares)				415,512	903,555
Issuance of common stock in public offering of common stock, net				$ 298,300,000	$ 447,500,000
Sale of stock, equity offering agreement, authorized							$ 750,000,000
2020 ATM Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock in public offering of common stock, shares (in shares)			637,617	0
Issuance of common stock in public offering of common stock, net			$ 497,900,000
Sale of stock, equity offering agreement, authorized						$ 1,500,000,000
Series A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock, shares authorized (in shares)			25,000,000
Series A-1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock, shares authorized (in shares)			25,000,000
Undesignated
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock, shares authorized (in shares)			50,000,000