Notes Payable - Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest Expense
Interest expense on debt and finance lease obligation	$ 7,783	$ 10,728
Noncash interest on derivatives	(869)	6,080
Amortization of deferred financing costs	735	699
Total interest expense	$ 7,649	$ 17,507