Leases - Additional Information (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 30, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Leases [Abstract] | |||
| Minimum lease period (in excess of) | 1 year | ||
| Rental expense for all operating leases | $ 16,663 | $ 16,160 | $ 14,300 |
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- Definition Minimum Lease Period No definition available.
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- References No definition available.
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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