Debt, Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest costs [Abstract]
Total interest expense	$ 31,482	$ 17,198	$ 50,162	$ 31,088
Debt [Member]
Interest costs [Abstract]
Interest per contractual rates	46,471	19,766	67,305	38,640
Amortization of fair value adjustments to assumed debt obligations	(10,295)	0	(10,295)	0
Amortization of debt issuance costs, premiums and discounts	1,925	5,728	2,412	10,350
Interest expense incurred on finance lease obligations	50	0	50	0
Total interest costs	38,151	25,494	59,472	48,990
Capitalized interest	6,669	8,296	9,310	17,902
Total interest expense	$ 31,482	$ 17,198	$ 50,162	$ 31,088