Goodwill and Intangible Assets - Estimated Future Amortized Intangible Expense by Purchased Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Acquired Indefinite-lived Intangible Assets [Line Items]
2020	$ 3,963
2021	498
Total future amortization expense	4,461	$ 12,817
Cost of Sales [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
2020	951
2021	0
Total future amortization expense	951
Operating expense [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
2020	3,012
2021	498
Total future amortization expense	$ 3,510