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Debt - Maturities (Details) - USD ($) $ in Thousands	Jul. 14, 2020	Jun. 30, 2020	May 06, 2020	Dec. 31, 2019
Debt maturities
2022		$ 200,000
2023		199,000
2024		325,000
Thereafter		900,000
Total principal outstanding		1,624,000		$ 1,487,500
Unamortized deferred financing costs		(8,759)		(9,098)
Total debt		$ 1,615,241		$ 1,478,402
2027 Senior Unsecured notes
Debt maturities
Total principal outstanding	$ 50,000		$ 100,000