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Income Taxes - Additional Information (Detail)
 3 Months Ended
Mar. 31, 2020
USD ($)
Income Taxes [Line Items]  
Net deferred tax asset $ 0
Income tax expense 0
Valuation allowance, net operating loss $ 1,300,000
Estimated Annual Effective Tax Rate 43.31%
Effective tax rate 0.00%
Federal [Member]  
Income Taxes [Line Items]  
Net operating loss carryforwards subject to expiration $ 182,400,000
Net operating loss carryforwards expiration year 2025
Net operating loss carryforwards expiration year 2038
Net operating loss carryforwards $ 2,500,000
Foreign [Member]  
Income Taxes [Line Items]  
Net operating loss carryforwards subject to expiration 61,200,000
Net operating loss carryforwards $ 522,000