Leases Leases Supplemental Cash Flow Information (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Leases [Abstract]
Operating Lease, Payments	$ 4,197
Finance Lease, Interest Payment on Liability	1,398
Total Lease Payments in Operating Cash Flows	5,595
Finance Lease, Principal Payments	$ 1,330