Leases - Lease Balances (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Operating	$ 61,910	$ 67,700	$ 0
Finance	6,417		5,002
Total	68,327		5,002
Current Operating Liability	16,473		0
Current Finance Liability	2,615		2,340
Long-term Operating Liability	80,268		0
Long-term Finance Liability	3,886		2,753
Total lease liabilities	$ 103,242		$ 5,093