Leases - Other Lease Disclosures (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Lessee
Operating cash flows from finance leases			$ 4,516	$ 4,817
Operating cash flows from operating leases			1,301	2,602
Financing cash flows from finance leases			2,959	2,658
Right-of-use assets obtained in exchange for new operating lease liabilities			0	6,983
Finance Leases
2020	$ 7,475		7,475
2021	14,949		14,949
2022	14,949		14,949
2023	14,949		14,949
2024	14,949		14,949
Thereafter	55,532		55,532
Total lease payments	122,803		122,803
Less: imputed interest	(44,031)		(44,031)
Total finance lease liabilities	78,772		78,772		$ 81,730
Operating Leases
2020	261		261
2021	1,119		1,119
2022	929		929
2023	708		708
2024	234		234
Thereafter	1,085		1,085
Total lease payments	4,336		4,336
Less: imputed interest	(773)		(773)
Total operating lease liabilities	3,563		3,563		$ 3,545
Total
2020	7,736		7,736
2021	16,068		16,068
2022	15,878		15,878
2023	15,657		15,657
2024	15,183		15,183
Thereafter	56,617		56,617
Total lease payments	127,139		127,139
Less: imputed interest	(44,804)		(44,804)
Present value of lease liabilities	82,335		82,335
Lessor
Lease income	$ 1,543	$ 1,514	$ 4,633	$ 4,554