Restructuring - Narrative (Details) $ in Millions			3 Months Ended
	Nov. 07, 2019 employee	Jul. 16, 2019 employee	Mar. 31, 2020 USD ($)	Dec. 29, 2019 USD ($)
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			$ 0.5
Evansville Restructuring
Restructuring Cost and Reserve [Line Items]
Number of position eliminations | employee		47
Remaining lease payments			1.0	$ 1.2
Evansville Restructuring | Other Exit Costs Liability
Restructuring Cost and Reserve [Line Items]
Restructuring costs incurred			$ 0.4