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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Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.

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Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

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Equity - Class of Stock Disclosures - Dividends and AOCI (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended						6 Months Ended
	Jul. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Dividend Distributions
Paid								$ 45,583	$ 45,168
Dividends declared and paid per common share (in dollars per share)		$ 0.57				$ 0.57		$ 1.14	$ 1.14
Dividends paid per common share (in dollars per share)		$ 0.57	$ 0.57	$ 0.57	$ 0.57	$ 0.57	$ 0.57
Common Stock
Dividend Distributions
Declared		$ 45,583				$ 45,168		$ 45,583	$ 45,168
Paid								$ 45,583	$ 45,168
Dividends paid per common share (in dollars per share)								$ 0.19	$ 0.19
Common Stock \| Subsequent Event \| Dividend Payable, July 31, 2019
Dividend Distributions
Dividends declared and paid per common share (in dollars per share)	$ 0.19
Common Stock \| Subsequent Event \| Dividend Payable, August 30, 2019
Dividend Distributions
Dividends declared and paid per common share (in dollars per share)	0.19
Common Stock \| Subsequent Event \| Dividend Payable, September 30, 2019
Dividend Distributions
Dividends declared and paid per common share (in dollars per share)	$ 0.19