Leases - Balance Sheet Location (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Operating leases
Operating lease right of use assets	$ 18,275	$ 13,274
Operating lease liability, current	3,227	3,006
Operating lease liability, noncurrent	15,048	10,268
Total operating lease liabilities	18,275	13,274
Finance leases
Property, plant, and equipment	3,469	3,518
Accumulated amortization	(3,095)	(2,943)
Property, plant, and equipment - net	374	575
Finance lease liability, current	231	405
Finance lease liability, noncurrent	143	170
Total finance lease liabilities	$ 374	$ 575