Significant Risks and Uncertainties - Additional Information (Detail) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Concentration Risk [Line Items]
Cash in short-term deposits in interest bearing accounts	$ 8,652,000	$ 10,053,000
U.S. [Member]
Concentration Risk [Line Items]
Cash in bank deposit and money market accounts	95,200,000	165,400,000
Cash in short-term deposits in interest bearing accounts	8,700,000	10,100,000
U.S. [Member] | Maximum [Member]
Concentration Risk [Line Items]
Cash deposit insured amount	250,000	250,000
China [Member]
Concentration Risk [Line Items]
Cash in bank deposit and money market accounts	12,500,000	25,900,000
Turkey [Member]
Concentration Risk [Line Items]
Cash in bank deposit and money market accounts	39,300,000	42,600,000
Mexico [Member]
Concentration Risk [Line Items]
Cash in bank deposit and money market accounts	2,400,000	2,100,000
India [Member]
Concentration Risk [Line Items]
Cash in bank deposit and money market accounts	4,900,000	5,700,000
Other Countries [Member]
Concentration Risk [Line Items]
Cash in bank deposit and money market accounts	$ 700,000	$ 500,000