Notes Payable - Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Total interest incurred	$ 73,284	$ 74,929	$ 65,182
Interest capitalized	(6,257)	(14,324)	(11,219)
Total interest expense	$ 67,027	$ 60,605	$ 53,963