Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Operating Leases
Other assets, non-current	$ 60,139
Accrued liabilities and other	13,207	$ 0
Other long-term liabilities	45,796
Total operating lease liabilities	59,003
Finance Leases
Property and equipment, gross	111,462
Accumulated depreciation	(31,005)
Property and equipment, net	80,457
Total finance lease liabilities	$ 70,740
Weighted Average Remaining Lease Term
Weighted-average remaining lease term - finance leases	1 year 9 months 25 days
Weighted-average remaining lease term - operating leases	5 years 2 months 8 days
Weighted Average Discount Rate
Weighted-average discount rate - finance leases	5.90%
Weighted-average discount rate - operating leases	5.19%