Goodwill (Detail) $ in Thousands	9 Months Ended
Mar. 27, 2020 USD ($)
Goodwill [Roll Forward]
Beginning Balance	$ 562,146
Ending Balance	614,830
SMP
Goodwill [Roll Forward]
Beginning Balance	140,783
Ending Balance	193,020
AMS
Goodwill [Roll Forward]
Beginning Balance	222,379
Ending Balance	222,379
MDS
Goodwill [Roll Forward]
Beginning Balance	198,984
Ending Balance	199,431
Germane Systems
Goodwill [Roll Forward]
Goodwill adjustment	447
Germane Systems \| MDS
Goodwill [Roll Forward]
Goodwill adjustment	447
GECO Avionics, LLC
Goodwill [Roll Forward]
Goodwill adjustment	(200)
GECO Avionics, LLC \| SMP
Goodwill [Roll Forward]
Goodwill adjustment	(200)
APC
Goodwill [Roll Forward]
Goodwill acquired during period	52,437
APC \| SMP
Goodwill [Roll Forward]
Goodwill acquired during period	$ 52,437

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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