Common and Preferred Stock - Additional Information (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Equity [Abstract]
Common stock, shares authorized	125,000,000	125,000,000
Common stock, par value	$ 0.001	$ 0.001
Voting description	Each share of common stock entitles the holder to one vote for the election of directors and on all matters submitted to a vote of the Company’s stockholders.
Preferred stock, authorize for future issuance	5,000,000	5,000,000
Preferred stock, par value	$ 0.001	$ 0.001