Commitments and Contingencies - Favorable Settlements (Details) $ in Millions			12 Months Ended
	Jun. 28, 2018 USD ($)	May 15, 2018 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2018 item
Commitments and Contingencies
Number of matters that received favorable resolution | item				2
Net favorable settlement		$ 1.7
Payment for claims	$ 2.2
Favorable amount over previously estimated liabilities	$ 0.5
Period covered by unclaimed property claims	12 years
Interest of unclaimed properties settlement not required to be paid			$ 1.5