Leases Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Lease, Cost [Abstract]
Operating Lease, Right-of-Use Asset	$ 18,066	$ 18,066	$ 0
Operating Lease, Cost	2,150	4,270
Finance Lease, Right-of-Use Asset, Amortization	22	43
Finance Lease, Interest Expense	8	15
Finance Lease cost	30	58
Sublease Income	(157)	(422)
Lease, Cost	$ 2,023	$ 3,906