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Amount of cash inflow from exercise of option under share-based payment arrangement.

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Per share or unit weighted-average intrinsic value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The estimated amount of dividends to be paid to holders of the underlying shares (expected dividends) over the option's term. Dividends are taken into account because payment of dividends to shareholders reduces the fair value of the underlying shares, and option holders generally do not receive dividends.

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Stock-Based Compensation (Details) $ / shares in Units, $ in Thousands						3 Months Ended			5 Months Ended	6 Months Ended			12 Months Ended
	Jul. 29, 2024 USD ($) $ / shares	Jun. 24, 2024 USD ($) shares	Jun. 20, 2024 USD ($) shares	May 17, 2024 shares	May 22, 2023 USD ($) $ / shares shares	Jun. 30, 2025 USD ($) $ / shares	Jun. 28, 2025 USD ($) shares	Jun. 29, 2024 USD ($)	Dec. 31, 2024 USD ($) $ / shares shares	Jun. 30, 2025 USD ($) $ / shares	Jun. 28, 2025 USD ($) shares	Jun. 29, 2024 USD ($)	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 28, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($)	Dec. 30, 2023 USD ($)	Dec. 31, 2022 USD ($) $ / shares	Dec. 31, 2022 USD ($) $ / shares	Dec. 31, 2025 $ / shares	Dec. 30, 2024 $ / shares
Share-Based Compensation [Line Items]
Deferred compensation													$ 27,800
Stock compensation expense					$ 200				$ 64,626	$ 2,980			62,300
Net of cash consideration													$ 10,500
Share option issued (in Shares) \| shares					125,000				1,000,000				1,000,000
Exercise price (in Dollars per share) \| $ / shares					$ 11.5
Weighted average exercise price (in Dollars per share) \| $ / shares					$ 1.647
Types of restricted stock units													2
Weighted average price (in Dollars per share) \| $ / shares									$ 20				$ 20
Consecutive trading day													10 days
Volatility rate													59.50%
Risk free interest rate													3.54%
Weighted average period													2 years 2 months 12 days
Share option forfeited (in Shares) \| shares				12,367
Cash payment									$ 20,800				$ 20,800
Incremental compensation expenses													19,500
Unrecognized compensation expense for tranche options			$ 1,200
Recognized compensation expense			$ 14,800
Shares of common stock (in Shares) \| shares		262,324
Aggregated principal amount		$ 28,300
Exercise price amount		19,600
Withholding taxes		$ 8,700
Remaining unrecognized compensation expense									10,000				$ 10,000
Expected volatility rate													46.47%
Tranche C Options [Member]
Share-Based Compensation [Line Items]
Deferred compensation													$ 7,400
Share option (in Shares) \| shares			28,824
Tranche A Options [Member]
Share-Based Compensation [Line Items]
Share option (in Shares) \| shares			157,844
Tranche B Options [Member]
Share-Based Compensation [Line Items]
Share option (in Shares) \| shares			75,656
Tranche A and Tranche B Options [Member]
Share-Based Compensation [Line Items]
Incremental compensation expenses													17,800
NV5 Global, Inc. [Member]
Share-Based Compensation [Line Items]
Stock compensation expense											$ 14,040	$ 13,988		$ 25,981		$ 22,379	$ 19,326
Share-based compensation expense							$ 6,295	$ 6,460			12,065	12,179		23,287	$ 20,193		18,195
Additional Paid-In Capital
Share-Based Compensation [Line Items]
Share-based compensation expense						$ 1,900				$ 3,000
Additional Paid-In Capital \| NV5 Global, Inc. [Member]
Share-Based Compensation [Line Items]
Share-based compensation expense							$ 6,295	6,460			$ 12,065	12,179		$ 23,287	20,193		18,195
Equity Plan 2011 [Member] \| NV5 Global, Inc. [Member]
Share-Based Compensation [Line Items]
Number of shares authorized (in Shares) \| shares														7,266,383
Equity Plan 2023 \| NV5 Global, Inc. [Member]
Share-Based Compensation [Line Items]
Number of shares authorized (in Shares) \| shares							5,560,825				5,560,825
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation [Line Items]
Deferred compensation													$ 7,200
Volatility rate													35.00%
Risk free interest rate										3.37%			3.37%
Weighted average period													2 years 6 months
Unrecognized compensation expense for market-based units									$ 3,700				$ 3,700
Number of types of RSUs										3
Expected volatility rate										35.00%
Restricted Stock Units (RSUs) [Member] \| Time Vesting Units
Share-Based Compensation [Line Items]
Deferred compensation						$ 900				$ 1,700
Weighted average exercise price (in Dollars per share) \| $ / shares										$ 20
Weighted average price (in Dollars per share) \| $ / shares						$ 9.66				$ 9.66										$ 10
Cost not yet recognized, term										2 years 3 months 18 days
Service period										3 years
Consecutive trading day										10 days
Unrecognized compensation expense						$ 9,300				$ 9,300
Restricted Stock Units (RSUs) [Member] \| Performance Vesting
Share-Based Compensation [Line Items]
Deferred compensation						$ 700				$ 700
Weighted average price (in Dollars per share) \| $ / shares						$ 9.19				$ 9.19
Cost not yet recognized, term										2 years 9 months 18 days
Service period										3 years
Unrecognized compensation expense						$ 8,700				$ 8,700
Restricted Stock Units (RSUs) [Member] \| Market Vesting Units
Share-Based Compensation [Line Items]
Deferred compensation						$ 300				$ 600
Weighted average price (in Dollars per share) \| $ / shares						$ 5.35				$ 5.35										$ 5.35
Cost not yet recognized, term										1 year 8 months 12 days
Unrecognized compensation expense						$ 2,500				$ 2,500
Restricted Stock Units (RSUs) [Member] \| Successor [Member]
Share-Based Compensation [Line Items]
Deferred compensation													$ 1,000
Market-based RSUs (in Dollars per share) \| $ / shares									$ 500,000				$ 500,000
Common Stock Awards [Member]
Share-Based Compensation [Line Items]
Deferred compensation													$ 600
Vested shares issued (in Shares) \| shares													63,700
Stock Option Plans and Stock Grants [Member]
Share-Based Compensation [Line Items]
Stock compensation expense	$ 17,900														$ 5,000		$ 2,600
Stock Option Plans and Stock Grants [Member] \| Tranche A Options [Member]
Share-Based Compensation [Line Items]
Exchange of shares (in Shares) \| shares				42,240
Stock Option Plans and Stock Grants [Member] \| Tranche B Options [Member]
Share-Based Compensation [Line Items]
Exchange of shares (in Shares) \| shares				21,120
Restricted Stock
Share-Based Compensation [Line Items]
Weighted average price (in Dollars per share) \| $ / shares														$ 26.16			$ 16.59	$ 16.59
Restricted Stock \| NV5 Global, Inc. [Member]
Share-Based Compensation [Line Items]
Deferred compensation							$ 7,270	7,322			$ 14,040	13,988		$ 25,981		22,379	$ 19,326
Weighted average price (in Dollars per share) \| $ / shares						$ 25.96				$ 25.96									$ 23.58
Stock-based compensation expense														2,694		2,186	$ 1,131
Total estimated fair value											8,948			8,164
Weighted average vesting period							60,562				$ 60,562			$ 38,403
Cost not yet recognized, term											2 years 3 days			1 year 7 months 2 days
Fair value of restricted shares vested											$ 10,656	18,653		$ 20,887		$ 29,792		$ 17,137
Liability Based Awards \| NV5 Global, Inc. [Member]
Share-Based Compensation [Line Items]
Deferred compensation							$ 975	$ 862			$ 1,975	$ 1,809
Minimum \| Promissory Notes [Member]
Share-Based Compensation [Line Items]
Bear interest rate													6.00%
Minimum \| Restricted Stock \| Equity Plan 2011 [Member] \| NV5 Global, Inc. [Member]
Share-Based Compensation [Line Items]
Award vesting period														2 years
Minimum \| Restricted Stock \| Equity Plan 2023 \| NV5 Global, Inc. [Member]
Share-Based Compensation [Line Items]
Award vesting period											2 years
Maximum \| Promissory Notes [Member]
Share-Based Compensation [Line Items]
Bear interest rate													3.00%
Maximum \| Restricted Stock \| Equity Plan 2011 [Member] \| NV5 Global, Inc. [Member]
Share-Based Compensation [Line Items]
Award vesting period														4 years
Maximum \| Restricted Stock \| Equity Plan 2023 \| NV5 Global, Inc. [Member]
Share-Based Compensation [Line Items]
Award vesting period											4 years
Series A Preferred Stock [Member]
Share-Based Compensation [Line Items]
Future annual dividend													$ 72,800