Revenue from Contracts with Customers Schedule of Disaggregated Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	$ 117,316	$ 125,568	$ 106,732
Instruments
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	47,830	31,074	21,441
Consumables
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	50,097	61,004	53,292
Total product revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	97,927	92,078	74,733
Service revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	13,517	11,636	8,790
Total product and service revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	111,444	103,714	83,523
Collaboration
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	5,872	21,854	23,209
Americas
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	79,787	86,139	74,137
Americas | Instruments
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	30,016	18,578	12,033
Americas | Consumables
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	34,922	37,983	32,667
Americas | Total product revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	64,938	56,561	44,700
Americas | Service revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	8,977	7,724	6,228
Americas | Total product and service revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	73,915	64,285	50,928
Americas | Collaboration
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	5,872	21,854	23,209
Asia Pacific
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	10,632	9,140	6,880
Asia Pacific | Instruments
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	6,680	4,413	2,731
Asia Pacific | Consumables
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	2,972	3,936	3,684
Asia Pacific | Total product revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	9,652	8,349	6,415
Asia Pacific | Service revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	980	791	465
Asia Pacific | Total product and service revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	10,632	9,140	6,880
Asia Pacific | Collaboration
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	0	0	0
Europe and Middle East
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	26,897	30,289	25,715
Europe and Middle East | Instruments
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	11,134	8,083	6,677
Europe and Middle East | Consumables
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	12,203	19,085	16,941
Europe and Middle East | Total product revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	23,337	27,168	23,618
Europe and Middle East | Service revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	3,560	3,121	2,097
Europe and Middle East | Total product and service revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	26,897	30,289	25,715
Europe and Middle East | Collaboration
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue	$ 0	$ 0	$ 0