Leasing Arrangements - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Lessee, Lease, Description [Line Items]
Lease cost	$ 1,677	$ 1,215
Selling, General and Administrative Expenses
Lessee, Lease, Description [Line Items]
Lease cost	900	600
Cost of Sales
Lessee, Lease, Description [Line Items]
Lease cost	400	300
Research and Development Expense
Lessee, Lease, Description [Line Items]
Lease cost	$ 400	$ 300