Debt - Debt related expenses included within Interest expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt related expenses included within Interest expense:
Interest Expense, Debt	$ 23,552	$ 16,788	$ 6,158
Amortization of debt issuance costs	4,749	1,979	70
Total	$ 28,301	$ 18,767	$ 6,228