Borrowings Convertible Debt (Details) $ / shares in Units, $ in Millions	3 Months Ended			12 Months Ended
	Mar. 31, 2022 USD ($) shares	Mar. 31, 2021 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2021 $ / shares shares	May 04, 2016 USD ($) $ / shares
Schedule of Convertible Debt
Debt Instrument, Convertible, Conversion Ratio				54.2741
Debt Instrument, Convertible, Conversion Price | $ / shares				$ 18.4250
Shares Issued During Period, Value, Exercise of Warrants	$ 0.0
Treasury Stock
Schedule of Convertible Debt
Stock Issued During Period, Shares, Conversion of Convertible Securities | shares				400,000
Shares Issued During Period, Shares, Exercise of Warrants | shares	203,615
Shares Issued During Period, Value, Exercise of Warrants	$ (3.1)
Convertible Debt | Convertible Notes Due Twenty Twenty One
Schedule of Convertible Debt
Debt Instrument, Interest Rate, Stated Percentage					3.25%
Debt Instrument, Face Amount					$ 172.5
Interest Expense, Debt, Excluding Amortization		$ 1.4
Amortization of Debt Issuance Costs		0.3
Amortization of Debt Discount (Premium)		1.9
Interest Expense, Debt		$ 3.6
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares					$ 21.1050
Proceeds from issuance of warrants			$ 39.1