Restructuring - Narrative (Details) $ in Millions			3 Months Ended	9 Months Ended
	Nov. 07, 2019 employee	Jul. 16, 2019 employee	Dec. 29, 2019 USD ($)	Sep. 30, 2020 USD ($)
Restructuring Cost and Reserve [Line Items]
Sublease of facility, percentage				15.00%
Bryan Restructuring
Restructuring Cost and Reserve [Line Items]
Number of position eliminations | employee	43
Bryan Restructuring | One-time Termination Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred			$ 0.3
Bryan Restructuring | Other Exit Costs Liability
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred				$ 0.6
Evansville Restructuring
Restructuring Cost and Reserve [Line Items]
Number of position eliminations | employee		47
Remaining lease payments			$ 1.2	0.7
Evansville Restructuring | Other Exit Costs Liability
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred				$ 0.5