Provision for Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating Loss Carryforwards [Line Items]
Undistributed earnings of foreign subsidiaries	$ 5,700,000
Unrecognized tax benefits	2,568,000	$ 358,000	$ 10,738,000
Unrecognized tax benefits that impact annual effective tax rate	2,600,000
Accrued interest	0
Amount of unrecognized tax benefits reasonably possible to be resolved in next twelve months	2,600,000
Continuing Operations
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance	33,500,000
Current Year Acquisition
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance	2,100,000
Convertible Debt Revision
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance	3,200,000
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	633,800,000	536,500,000
Federal | Expire if not Utilized
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	201,200,000
Federal | No Expiration
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	432,600,000
Federal | Research Tax Credit Carryforward
Operating Loss Carryforwards [Line Items]
Tax credits	8,900,000	8,200,000
State
Operating Loss Carryforwards [Line Items]
Tax credits	$ 3,000,000	$ 2,200,000