New and Recently Adopted Accounting Pronouncements - Additional Information (Detail) - ASU 2016-02 [Member] $ in Millions	Dec. 29, 2018 USD ($)
Minimum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use asset	$ 30.0
Lease liability	34.0
Maximum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use asset	36.0
Lease liability	$ 40.0