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Equity (Dividends) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Dividends [Abstract]
Operating loss carryforwards		$ 460,600
Common stock dividends	$ 32,815	$ 25,324	$ 12,333
Common stock dividends paid (in dollars per share)	$ 0.43	$ 0.39
Capital gains distribution percentage	100.00%	100.00%
Unrecaptured Section 1250 gain percentage		34.01%
Common Stock
Dividends [Abstract]
Capital gains distribution percentage		100.00%
Unrecaptured Section 1250 gain percentage		34.01%

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Capital Gains Distribution, Percentage

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Unrecaptured Section 1250 Gain, Percentage of Dividend

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Aggregate dividends paid during the period for each share of common stock outstanding.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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