Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Duties	$ 4,258	$ 4,865
Freight and handling fees	9,758	3,217
Operating lease obligations	4,158	0
Professional fees	1,157	1,930
Sales taxes and VAT	364	1,050
Short-term contingent consideration	4,951	4,190
Tooling	2,100	1,770
Other	9,341	6,989
Total other accrued liabilities	$ 36,087	$ 24,011