Derivatives - Offsetting Arrangements (Loss) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Assets:
Derivative asset, fair market value	$ 160	$ 683
Derivative asset, gross amounts offset	(160)	(615)
Derivative Assets, net amounts of assets	0	68
Liabilities:
Derivative liability, gross amounts of liabilities	(142,874)	(64,361)
Derivative liability, gross amounts offset	160	615
Derivative liabilities, net amounts of liabilities	(142,714)	(63,746)
Derivative, net, gross amounts of assets/liabilities	(142,714)	(63,678)
Derivative assets, net amounts of assets/liabilities	$ (142,714)	$ (63,678)