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Stockholders' Equity Matters - Classification of Dividends Paid (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Percent of dividends paid	100.00%	100.00%	100.00%
Nonqualified ordinary dividends
Class of Stock [Line Items]
Percent of dividends paid	43.00%	54.80%	83.00%
Qualified ordinary dividends
Class of Stock [Line Items]
Percent of dividends paid	0.00%	4.50%	4.80%
Capital gains
Class of Stock [Line Items]
Percent of dividends paid	49.50%	14.70%	5.80%
Return of capital
Class of Stock [Line Items]
Percent of dividends paid	7.50%	26.00%	6.40%

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- Definition

Represents the percentage of total dividends paid.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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