Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	$ 154,562	$ 163,000
Operating Lease, Liability, Current	43,247
Operating Lease, Liability, Noncurrent	118,783
Operating Lease, Liability	162,030
Finance Lease, Right-of-Use Asset	11,856
Finance Lease, Liability, Current	1,526
Finance Lease, Liability, Noncurrent	8,350
Finance Lease, Liability	9,876
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	$ 909