Leases - Summary of Leases Table (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases [Abstract]
Operating leases - Other assets	$ 3,985
Finance leases - Net property, plant, and equipment	7,892
Operating leases - Accrued liabilities	1,805
Finance leases - Short-term debt	7,873
Operating leases - Other liabilities	3,035
Total lease liabilities - operating leases	$ 4,840
Weighted-average remaining lease term (years) - operating leases	5 years
Weighted-average discount rate - operating leases	4.70%
Weighted-average discount rate - finance leases	2.90%
Additions to ROU assets and lease liabilities - finance leases	$ 8,500
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:AccruedLiabilitiesCurrent
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesNoncurrent
Operating Lease, Liability, Statement of Financial Position [Extensible List]	us-gaap:AccruedLiabilitiesCurrent us-gaap:OtherLiabilitiesNoncurrent