Leases Supplemental Balance Sheets Information (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease right-of-use assets	$ 21,056	$ 19,830	$ 0
Property, plant and equipment, net	6,412
Lease right-of-use assets	27,468
Current operating lease liabilities	3,750	3,240	0
Current portion of long-term debt	2,424
Long-term operating lease liabilities	18,247	$ 17,385	$ 0
Long-term debt	4,161
Total lease liabilities	28,582
Operating lease, accumulated amortization	8,500
Finance lease, accumulated amortization	$ 4,669