Leases - Summary of Other Lease Related Information (Detail) $ in Thousands	9 Months Ended
	Sep. 28, 2019 USD ($)
Other information
Cash paid for amounts included in the measurement of operating leases	$ 24,283
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 8,983
Weighted-average remaining lease term	4 years 7 months 6 days
Weighted-average discount rate	5.00%
With Affiliates [Member]
Other information
Cash paid for amounts included in the measurement of operating leases	$ 8,572
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 3,483
Weighted-average remaining lease term	5 years 1 month 6 days
Weighted-average discount rate	5.00%
With Third Parties [Member]
Other information
Cash paid for amounts included in the measurement of operating leases	$ 15,711
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 5,500
Weighted-average remaining lease term	4 years 3 months 18 days
Weighted-average discount rate	5.00%