Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Operating Leases
Other non-current assets	$ 12,018	$ 12,858
Accrued liabilities	3,634	3,972
Other long-term liabilities	8,469	8,989
Total operating lease liabilities	12,103	12,961
Finance Leases
Property, plant and equipment, gross	471	524
Accumulated Depreciation	(242)	(265)
Property, plant and equipment, net	229	259
Current maturities of long-term debt and finance lease obligations	76	90
Long-term debt and finance lease obligations, net of current maturities	145	174
Total finance lease liabilities	$ 221	$ 264
Operating Leases Weighted Average Remaining Lease Term	5 years 18 days	5 years 1 month 6 days
Finance Leases Weighted Average Remaining Lease Term	3 years 5 months 1 day	3 years 5 months 19 days
Operating Lease Weighted Average Discount Rate (as percent)	3.31%	3.29%
Finance Lease Weighted Average Discount Rate (as percent)	3.43%	3.39%