Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

No definition available.

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Operating Leases (Details) - USD ($) $ in Millions	12 Months Ended
Operating Leases (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense						$ 0.4	$ 0.2	$ 0.2
Scenario, Forecast [Member]
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense	$ 0.1	$ 0.1	$ 0.1	$ 0.4	$ 1.1