Notes Payable - Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Interest Expense
Interest expense on debt and finance lease obligations	$ 10,728	$ 11,509
Noncash interest on derivatives and finance lease obligations, net	6,080	2,119
Amortization of deferred financing costs	699	698
Total interest expense	$ 17,507	$ 14,326