Income Taxes - Tax Credit Carryforwards (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)
Tax credits available to offset future tax liabilities
Effective income tax rate reconciliation, tax credit, foreign, amount	$ 6.3
Additional gross interest expense carryforward	40.2
State
Tax credits available to offset future tax liabilities
Tax credits	4.6
State | Research and Development
Tax credits available to offset future tax liabilities
Tax credits	$ 7.8