Organization and Significant Accounting Policies - Assets or Liabilities Measured at Fair Value (Detail) - USD ($) $ in Thousands	Jun. 29, 2018	Dec. 29, 2017
Forward Contracts [Member]
Other assets:
Assets measured at fair value	$ 457	$ 1,302
Interest Rate Swap [Member]
Other assets:
Assets measured at fair value	14	30
Significant Other Observable Inputs (Level 2) [Member] | Forward Contracts [Member]
Other assets:
Assets measured at fair value	457	1,302
Significant Other Observable Inputs (Level 2) [Member] | Interest Rate Swap [Member]
Other assets:
Assets measured at fair value	$ 14	$ 30