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Income Taxes - Operating Loss Carry Forwards (Parenthetical) (Detail)	12 Months Ended
	Dec. 30, 2017
Minimum [Member] | 2018 - 2022 [Member]
Income Taxes [Line Items]
Expiration Dates	2018
Minimum [Member] | 2023 - 2027 [Member]
Income Taxes [Line Items]
Expiration Dates	2023
Minimum [Member] | 2028 - 2032 [Member]
Income Taxes [Line Items]
Expiration Dates	2028
Minimum [Member] | 2033 - 2037 [Member]
Income Taxes [Line Items]
Expiration Dates	2033
Maximum [Member] | 2018 - 2022 [Member]
Income Taxes [Line Items]
Expiration Dates	2022
Maximum [Member] | 2023 - 2027 [Member]
Income Taxes [Line Items]
Expiration Dates	2027
Maximum [Member] | 2028 - 2032 [Member]
Income Taxes [Line Items]
Expiration Dates	2032
Maximum [Member] | 2033 - 2037 [Member]
Income Taxes [Line Items]
Expiration Dates	2037

X

- Definition

Income Taxes [Line Items]

+ References

No definition available.

+ Details

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- Definition

Net operating loss carry forwards expiration dates.

+ References

No definition available.

+ Details

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