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Borrowings - Additional Information (Detail) - Senior Convertible Note Purchase Agreement - USD ($)		1 Months Ended	3 Months Ended
	Mar. 07, 2019	Apr. 30, 2019	Mar. 31, 2026
Debt Instrument [Line Items]
Date of issuance and sale of notes	Mar. 07, 2019
Face amount	$ 16,000,000
Proceeds from debt, net of issuance costs	14,700,000
Payment of debt issuance costs	$ 1,300,000
Debt conversion, converted instrument, amount		$ 2,000,000
Notes maturity date	Mar. 15, 2025
Repayment of debt			$ 14,000,000
Common Stock
Debt Instrument [Line Items]
Debt Conversion, Converted Instrument, Shares Issued		162,600