Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 01, 2019
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 86,547	$ 92,700
Operating Lease, Liability, Current	26,210
Operating Lease, Liability, Noncurrent	60,626
Operating Lease, Liability	$ 86,836	$ 93,500