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

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

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Shareholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	Apr. 18, 2019	Apr. 05, 2019	Feb. 21, 2019
Distributions
Common stock, quarterly per share distribution (in dollars per share)			$ 0.53
Common stock dividend			$ 87,154
Subsequent event
Distributions
Shares repurchased (in shares)		1,642
Treasury stock repurchased (in dollars per share)		$ 26.64
Common stock dividend	$ 88,798
Quarterly distribution declared (in dollars per share)	$ 0.54