Stockholders' Equity Tax Treatment of Dividends Paid (Details) - $ / shares		3 Months Ended
		Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021
Class of Stock [Line Items]
Common Stock, Dividends, Per Share, Cash Paid		$ 1.47	$ 1.33	$ 1.33	$ 1.33
Common Stock [Member]
Class of Stock [Line Items]
Payment Date		Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021
Common Stock [Member]
Class of Stock [Line Items]
Non-Taxable Distribution		$ 0.603135	$ 0.545694	$ 0.545694	$ 0.545694
Ordinary Taxable Dividend Per Share [Member]
Class of Stock [Line Items]
Common Stock, Dividends, Per Share, Cash Paid		0.866865	0.784306	0.784306	0.784306
Qualified Taxable Dividend Per Share [Member]
Class of Stock [Line Items]
Common Stock, Dividends, Per Share, Cash Paid	[1]	0.013617	0.012321	0.012321	0.012321
Long-Term Capital Gain Distribution Per Share [Member]
Class of Stock [Line Items]
Common Stock, Dividends, Per Share, Cash Paid		$ 0.853248	$ 0.771985	$ 0.771985	$ 0.771985

[1] Qualified taxable dividend and section 199A dividend amounts are included in ordinary taxable dividend amounts.