Summary of Significant Accounting Policies - Additional Information (Detail)		12 Months Ended
	Jan. 01, 2019	Dec. 31, 2019
Accounting Policies [Abstract]
Cash equivalents original maturity period		three months or less
Adoption of new accounting standard percentage of increase decrease in total assets	0.50%
Adoption of new accounting standard percentage of increase decrease in total liabilities	1.20%