Dividends and Distributions (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended				2 Months Ended					3 Months Ended				6 Months Ended		8 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018	Apr. 30, 2020	Jan. 31, 2020	Jul. 31, 2019	Apr. 30, 2019	Jan. 31, 2019	Jul. 31, 2020	Jun. 30, 2020	Jul. 31, 2019	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Jul. 31, 2020	Jul. 31, 2019
Dividends Payable [Line Items]
Dividend Per Share (in USD per share)					$ 0.2100	$ 0.2000	$ 0.2000	$ 0.2000	$ 0.1875		$ 0.21		$ 0.20	$ 0.42	$ 0.40
Common Shares
Distributions Declared					$ 42,568	$ 0		$ 30,235	$ 0			$ 38,764					$ 68,999
Distributions Paid					42,568	38,796		30,235	28,218			$ 0					$ 58,206
Dividend equivalents accrued on unvested restricted stock units to be paid when the awards vest.
Common Shares
Distributions Paid	$ 233	$ 169	$ 142	$ 127
Dividend equivalents paid on unvested restricted stock units that are not expected to vest (recognized as additional compensation).
Common Shares
Distributions Paid					$ 10	$ 4		$ 15	$ 7
Subsequent Event
Dividends Payable [Line Items]
Dividend Per Share (in USD per share)										$ 0.2100
Common Shares
Distributions Declared										$ 43,271						$ 85,839
Distributions Paid										$ 0						$ 80,976