Treasury Stock - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 28, 2019	Jun. 29, 2018	Jun. 28, 2019	Jun. 29, 2018
Class Of Stock Disclosures [Abstract]
Stock repurchase program, authorized amount	$ 30,000,000.0		$ 30,000,000.0
Treasury stock purchase, shares	0	1,548,000	0	1,573,000
Treasury stock repurchased, shares			3,200,000
Shares authorized to repurchase, remaining amount	$ 7,700,000	$ 8,900,000	$ 7,700,000	$ 8,900,000
Issued treasury stock, shares	203,000	516,000	419,000	880,000