Leases Leases Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Leases [Abstract]
Other assets	$ 138,222
Current operating lease liability	24,606	$ 0
Other noncurrent liabilities	116,590
Total operating lease liabilities	141,196
Net property, plant and equipment	3,793
Current portion of long-term debt	660
Long-term debt	3,174
Total finance lease liabilities	$ 3,834
Weighted average remaining lease term, operating leases	11 years 4 months 24 days
Weighted average remaining lease term, finance leases	6 years
Weighted average discount rate, operating leases, percent	3.85%
Weighted average discount rate, finance leases, percent	2.88%