Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Principal Amount	$ 500,000	$ 560,000
Deferred Loan Fees	(4,891)	(5,376)
Carrying Value	495,109	554,624
Senior unsecured notes payable
Debt Instrument [Line Items]
Principal Amount	300,000	300,000
Deferred Loan Fees	(3,710)	(4,089)
Carrying Value	296,290	295,911
Senior unsecured term loan
Debt Instrument [Line Items]
Principal Amount	200,000	200,000
Deferred Loan Fees	(1,181)	(1,287)
Carrying Value	198,819	198,713
Unsecured revolving credit facility
Debt Instrument [Line Items]
Principal Amount	0	60,000
Deferred Loan Fees	0	0
Carrying Value	$ 0	$ 60,000