Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Principal Amount	$ 950,000	$ 550,000
Deferred Loan Fees	(10,079)	(4,406)
Carrying Value	939,921	545,594
Senior unsecured notes | 2028 Senior unsecured notes payable
Debt Instrument [Line Items]
Principal Amount	400,000	0
Deferred Loan Fees	(6,158)	0
Carrying Value	393,842	0
Senior unsecured notes | 2025 Senior unsecured notes payable
Debt Instrument [Line Items]
Principal Amount	300,000	300,000
Deferred Loan Fees	(2,952)	(3,331)
Carrying Value	297,048	296,669
Senior unsecured term loan
Debt Instrument [Line Items]
Principal Amount	200,000	200,000
Deferred Loan Fees	(969)	(1,075)
Carrying Value	199,031	198,925
Unsecured revolving credit facility
Debt Instrument [Line Items]
Principal Amount	50,000	50,000
Deferred Loan Fees	0	0
Carrying Value	$ 50,000	$ 50,000