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Recent Accounting Pronouncements - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended
		Sep. 26, 2019	Mar. 26, 2020	Jun. 28, 2019	Jun. 27, 2019	Mar. 28, 2019
Change in Accounting Estimate [Line Items]
Right of use assets			$ 4,638		$ 0	$ 0
Lease liability			$ 4,633
Retained Earnings [Member]
Change in Accounting Estimate [Line Items]
Impact of adopting ASU 2018-02	[1]	$ 976
Accounting Standards Update 2016-02 [Member]
Change in Accounting Estimate [Line Items]
Right of use assets				$ 5,361
Lease liability				$ 5,320
[1] See Note 15 – “Recent Accounting Pronouncements” for additional information.

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Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
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Amount of lessee's right to use underlying asset under operating lease.

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Amount of increase (decrease) in accumulated other comprehensive income (AOCI) for reclassification to retained earnings of tax effect from remeasurement of deferred tax pursuant to Tax Cuts and Jobs Act.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
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-Subparagraph (a)
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