Common Stock - Additional Information (Detail) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($) $ / shares shares
Equity [Abstract]
Issuance of common stock, shares | shares	6,241,473
Common stock price per share | $ / shares	$ 104.14
Proceeds from public offering of common stock, net of commissions and underwriting discounts and offering costs | $	$ 650.0