Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Operating leases:
Operating lease right-of-use assets	$ 27,070	$ 0
Short-term lease liabilities, included in Other accrued liabilities	5,176
Long-term lease liabilities	22,006	$ 0
Total operating lease liabilities	27,182
Finance leases:
Property, plant and equipment	740
Accumulated depreciation	(195)
Property, plant and equipment, net	545
Short-term lease liabilities, included in debt	109
Long-term lease liabilities, included in debt	13
Total finance lease liabilities	$ 122
Weighted average remaining lease term:
Operating leases	7 years 6 months
Finance leases	12 years