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Net Fair Value of Commodity Price Risk (Detail) - USD ($) $ in Thousands | Apr. 18, 2020 | Dec. 28, 2019
--- | --- | ---
Derivative Instruments, Gain (Loss) [Line Items] |  |
Assets | $ 2,646 | $ 3,780
Liabilities | (4,856) | (1,606)
Net Fair Value | (2,210) | 2,174
Level 1 |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Assets | 2,646 | 3,780
Liabilities | (4,856) | (1,606)
Net Fair Value | (2,210) | 2,174
Other Current Assets |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Assets | 1,942 | 3,191
Other Current Assets | Level 1 |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Assets | 1,942 | 3,191
Other LongTerm Assets |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Assets | 704 | 589
Other LongTerm Assets | Level 1 |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Assets | 704 | 589
Other Current Liabilities |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Liabilities | (3,634) | (814)
Other Current Liabilities | Level 1 |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Liabilities | (3,634) | (814)
Other LongTerm Liabilities |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Liabilities | (1,222) | (792)
Other LongTerm Liabilities | Level 1 |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Liabilities | $ (1,222) | $ (792)

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