Income Taxes - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance			$ 22,000,000.0
Federal deferred tax asset, increase (decrease), amount			22,000,000.0
Benefit recognized for net operating loss carryforwards	$ 0
Benefit recognized for other deferred tax assets	0
Increase (decrease) in valuation allowance	22,000,000.0	$ 22,100,000
Net operating loss carryforwards, federal	259,900,000
Net operating loss carryforwards, state	$ 153,800,000
Tax credit carryforwards expiration beginning year	2028
Unrecognized tax benefit	$ 1,800,000	$ 1,500,000	$ 900,000
Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards available to reduce future taxable income	5,100,000
State
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards available to reduce future taxable income	$ 2,700,000