Leases - Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Operating leased asset	$ 277,362	$ 276,618
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Operating leased asset
Finance leased asset	$ 9,123
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentNet
Total leased assets	$ 286,485
Operating lease liabilities, current	$ 70,438	69,866
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Operating lease liabilities, current
Finance lease liabilities, current	$ 4,332
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
Operating lease liabilities, noncurrent	$ 206,616	$ 206,357
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Operating lease liabilities, noncurrent
Finance lease liabilities, noncurrent	$ 3,498
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Longterm Debt Gross And Finance Leases Noncurrent
Total lease liabilities	$ 284,884
Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Finance Lease, Term of Contract	1 year
Lessee, Operating Lease, Term of Contract	1 year
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Finance Lease, Term of Contract	10 years
Lessee, Operating Lease, Term of Contract	10 years