Lessee, operating lease, annual rent payment, adjustment year one.

No definition available.

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- Definition

Lessee, operating lease, annual rent payment, adjustment year two.

+ References

No definition available.

+ Details

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Namespace Prefix:	expo_
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Balance Type:	na
Period Type:	duration

- Definition

Number of options to renew lease.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Number of states in which entity has lease arrangements.

+ References

No definition available.

+ Details

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Namespace Prefix:	expo_
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Balance Type:	na
Period Type:	instant

- Definition

Area of land held.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A

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-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Indicates (true false) whether lessee has option to extend operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Description of terms and conditions of option to extend lessee's operating lease. Includes, but is not limited to, information about option recognized as part of right-of-use asset and lease liability.

+ References

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

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Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Income earned by providing the use of assets to an outside party in exchange for a payment or series of payments that is nonoperating in nature.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
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Balance Type:	debit
Period Type:	duration

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- Details

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- Details

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- Details

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Leases - Additional Information (Detail)		3 Months Ended			9 Months Ended
Leases - Additional Information (Detail)	Jun. 19, 2024 USD ($)	Sep. 27, 2024 USD ($) a Option State	Jun. 28, 2024 USD ($)	Sep. 29, 2023 USD ($)	Sep. 27, 2024 USD ($) a Option State	Sep. 29, 2023 USD ($)
Lessee Lease Description [Line Items]
Lease payment obligation per year		$ 131,090,000			$ 131,090,000
Additional right-of-use asset in exchange for operating lease liability					56,714,000	$ 13,803,000
Other Income [Member]
Lessee Lease Description [Line Items]
Rental Income		$ 742,000		$ 882,000	$ 2,511,000	$ 2,491,000
Office, Laboratory, and Storage Space [Member]
Lessee Lease Description [Line Items]
Number of States in which Entity Has Lease Arrangements \| State		13			13
Office, Laboratory, and Storage Space [Member] \| Minimum
Lessee Lease Description [Line Items]
Lessee, Operating Lease, Term of Contract		1 year			1 year
Office, Laboratory, and Storage Space [Member] \| Maximum
Lessee Lease Description [Line Items]
Lessee, Operating Lease, Term of Contract		10 years			10 years
Phoenix Arizona [Member]
Lessee Lease Description [Line Items]
Lessee, Operating Lease, Term of Contract		30 years			30 years
Area of Land \| a		147			147
Number of Options to Renew Lease \| Option		2			2
Lessee, Operating Lease, Option to Extend					The Company leases this land from the State of Arizona under a 30-year lease agreement that expires in January of 2028 and has options to renew for two fifteen-year periods.
Lessee, Operating Lease, Existence of Option to Extend [true false]					true
Lessee, Operating Lease, Renewal Term	15 years	15 years			15 years
Annual rent payment adjustment year one	2033
Annual rent payment adjustment year two	2038
Additional right-of-use asset in exchange for operating lease liability			$ 48,683,000
Phoenix Arizona [Member] \| Lease Period Until January 16, 2028 [Member]
Lessee Lease Description [Line Items]
Lease payment obligation per year	$ 1,009,000
Phoenix Arizona [Member] \| Lease Period After January 16, 2028 [Member]
Lessee Lease Description [Line Items]
Lease payment obligation per year	$ 6,183,000