Treasury Stock - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 29, 2019	Mar. 30, 2018	Dec. 31, 2016	Dec. 31, 2017
Class Of Stock Disclosures [Abstract]
Stock repurchase program, authorized amount	$ 30,000,000.0		$ 10,000,000.0
Stock repurchase program, period			2 years
Treasury stock purchase, shares	0	25,000
Additional stock repurchase program, authorized amount		$ 10,000,000.0		$ 10,000,000.0
Treasury stock repurchased, shares	3,200,000
Shares authorized to repurchase, remaining amount	$ 7,700,000	$ 22,500,000
Issued treasury stock, shares	215,000	364,000