Nature of Operations and Summary of Significant Accounting Policies (Policies)	3 Months Ended
Mar. 30, 2024
Accounting Policies [Abstract]
Use of Estimates and Critical Accounting Policies	Use of Estimates and Critical Accounting Policies The preparation of financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. Although the Company makes every effort to ensure the accuracy of the estimates and assumptions used in the preparation of its condensed consolidated financial statements or in the application of accounting policies, if business conditions were different, or if the Company were to use different estimates and assumptions, it is possible that materially different amounts could be reported in the Company's condensed consolidated financial statements.
Restricted Cash	Restricted Cash The Company's restricted cash generally serves as collateral for bank guarantees associated with providing assurance to customers that the Company will fulfill certain customer obligations entered into in the normal course of business and for certain banker's acceptance drafts issued to vendors. The majority of these restrictions will expire over the next twelve months.
Intangible Assets, Net	Intangible assets are recorded at fair value at the date of acquisition. Subsequent impairment charges are reflected as a reduction in the gross balance, as applicable. Definite-lived intangible assets are stated net of accumulated amortization and currency translation in the accompanying condensed consolidated balance sheet. The Company amortizes definite-lived intangible assets over lives that have been determined based on the anticipated cash flow benefits of the intangible asset.
Warranty Obligations	Warranty Obligations The Company's contracts covering the sale of its products include warranty provisions that provide assurance to its customers that the products will comply with agreed-upon specifications during a defined period of time. The Company provides for the estimated cost of product warranties at the time of sale based on historical occurrence rates and repair costs, as well as knowledge of any specific warranty problems that indicate projected warranty costs may vary from historical patterns. The Company negotiates the terms regarding warranty coverage and length of warranty depending on the products and applications. The Company's liability for warranties is included in other current liabilities in the accompanying condensed consolidated balance sheet.
Revenue Recognition	Revenue Recognition Most of the Company’s revenue relates to products and services that require minimal customization and is recognized at a point in time for each performance obligation under the contract when the customer obtains control of the goods or service. The remaining portion of the Company’s revenue is recognized over time based on an input method that compares the costs incurred to date to the total expected costs required to satisfy the performance obligation. Contracts are accounted for on an over time basis when they include products which have no alternative use and an enforceable right to payment over time. Most of the contracts recognized on an over time basis are for large capital equipment projects. These projects are highly customized for the customer and, as a result, would include a significant cost to rework in the event of cancellation. The Company disaggregates its revenue from contracts with customers by reportable operating segment, product type and geography as this best depicts how its revenue is affected by economic factors. Contract assets represent unbilled revenue associated with revenue recognized on contracts accounted for on an over time basis, which will be billed in future periods based on the contract terms. Contract liabilities consist of short- and long-term customer deposits, advanced billings, and deferred revenue. Deferred revenue is included in other current liabilities, and long-term customer deposits are included in other long-term liabilities in the accompanying condensed consolidated balance sheet. Contract liabilities will be recognized as revenue in future periods once the revenue recognition criteria are met. The majority of the contract liabilities relate to advance payments on contracts accounted for at a point in time. These advance payments will be recognized as revenue when the Company's performance obligations have been satisfied, which typically occurs when the product has shipped and control of the asset has transferred to the customer.
Banker's Acceptance Drafts Included in Accounts Receivable	Banker's Acceptance Drafts Included in Accounts Receivable The Company's Chinese subsidiaries may receive banker's acceptance drafts from customers as payment for their trade accounts receivable. The drafts are non-interest bearing obligations of the issuing bank and generally mature within six months of the origination date. The Company's Chinese subsidiaries may sell the drafts at a discount to a third-party financial institution or transfer the drafts to vendors in settlement of current accounts payable prior to the scheduled maturity date.
Income Taxes	Income Taxes In accordance with Accounting Standards Codification (ASC) 740, Income Taxes (ASC 740), the Company recognizes deferred income taxes based on the expected future tax consequences of differences between the financial statement basis and the tax basis of assets and liabilities, calculated using enacted tax rates in effect for the year in which these differences are expected to reverse. A tax valuation allowance is established, as needed, to reduce deferred tax assets to the amount expected to be realized. In the period in which it becomes more likely than not that some or all of the deferred tax assets will be realized, the valuation allowance will be adjusted. It is the Company's policy to provide for uncertain tax positions and the related interest and penalties based upon management's assessment of whether a tax benefit is more likely than not to be sustained upon examination by tax authorities. The Company recognizes accrued interest and penalties related to unrecognized tax benefits in the provision for income taxes. At March 30, 2024, the Company believes that it has appropriately accounted for any liability for unrecognized tax benefits. To the extent the Company prevails in matters for which a liability for an unrecognized tax benefit is established, the statute of limitations expires for a tax jurisdiction year, or the Company is required to pay amounts in excess of the liability, its effective tax rate in a given financial statement period may be affected.
Recent Accounting Pronouncements Not Yet Adopted	Recent Accounting Pronouncements Not Yet Adopted Business Combinations - Joint Venture Formations (Topic 805), Recognition and Initiation Measurement. In August 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2023-05, to address the diversity in practice on the accounting treatment of joint venture formations. Under this ASU, a joint venture is required to apply a new basis of accounting at its formation date by valuing the net assets contributed at fair value for both business and asset transactions. The value of the net assets in total is then allocated to individual assets and liabilities by applying Topic 805 with certain exceptions. This new guidance is effective for joint ventures with a formation date on or after January 1, 2025 and is required to be applied prospectively. Additionally, joint ventures with a formation date prior to January 1, 2025, have an option to elect to apply the guidance retrospectively, provided adequate information is available. The impact of the adoption of this ASU on the Company's consolidated financial statements will be dependent upon joint ventures formed in future periods. Segment Reporting - Improving Reportable Segment Disclosures (Topic 280). In November 2023, the FASB issued ASU No. 2023-07, to improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant expenses. Under this ASU, a company is required to enhance its segment disclosures to include significant segment expenses that are regularly provided to the chief operating decision maker (CODM), a description of other segment items by reportable segment, and any additional measures of a segment's profit or loss used by the CODM when deciding how to allocate resources. This ASU also requires all annual disclosures currently required by Topic 280 to be included in interim periods. This ASU is effective for the Company's fiscal year ending December 28, 2024, and interim periods beginning in fiscal 2025, with early adoption permitted, and requires retrospective application to all prior periods presented in the financial statements. The Company is currently evaluating the effects that the adoption of this ASU will have on its consolidated financial statements. Income Taxes - Improvements to Income Tax Disclosures (Topic 740). In December 2023, the FASB issued ASU No. 2023-09, to improve income tax disclosure requirements, primarily through enhanced disclosures related to the income tax rate reconciliation and income taxes paid. This ASU is effective for fiscal 2025, with early adoption permitted, and may be applied retrospectively. The Company is currently evaluating the effects that the adoption of this ASU will have on its consolidated financial statements.
Acquisitions	AcquisitionsThe Company’s acquisitions have been accounted for using the acquisition method of accounting and the results of the acquired businesses are included in its condensed consolidated financial statements from the date of acquisition. Historically, acquisitions have been made at prices above the fair value of identifiable net assets, resulting in goodwill.
Stock-Based Compensation	The Company recognizes compensation expense for all stock-based awards granted to employees and directors based on the grant date estimate of fair value for those awards. The fair value of RSUs is based on the grant date price of the Company's common stock, reduced by the present value of estimated dividends foregone during the requisite service period. For time-based RSUs, compensation expense is recognized ratably over the requisite service period for the entire award based on the grant date fair value, and net of actual forfeitures recorded when they occur. For performance-based RSUs, compensation expense is recognized ratably over the requisite service period for each separately vesting portion of the award based on the grant date fair value, net of actual forfeitures recorded when they occur, and remeasured each reporting period until the total number of RSUs to be issued is known.The RSUs are subject to adjustment based on the achievement of the performance measure selected for the fiscal year, which is a specified target for adjusted earnings before interest, taxes, depreciation, and amortization (target adjusted EBITDA) generated from operations for the fiscal year. The RSUs are adjusted by comparing the actual adjusted EBITDA for the performance period to the target adjusted EBITDA. Actual adjusted EBITDA between 50% and 100% of the target adjusted EBITDA results in an adjustment of 50% to 100% of the target RSU amount. Actual adjusted EBITDA between 100% and 115% of the target adjusted EBITDA results in an adjustment using a straight-line linear scale between 100% and 150% of the target RSU amount. Actual adjusted EBITDA in excess of 115% results in an adjustment capped at 150% of the target RSU amount. If actual adjusted EBITDA is below 50% of the target adjusted EBITDA for the 2024 fiscal year, these performance-based RSUs will be forfeited. The Company recognizes compensation expense based on the probable number of performance-based RSUs expected to vest. Following the adjustment, the performance-based RSUs will be subject to additional time-based vesting, and will vest in three equal annual installments on March 10 of 2025, 2026, and 2027, provided that the officer is employed by the Company on the applicable vesting dates.
Forward Currency-Exchange Contracts	The Company uses forward currency-exchange contracts that generally have maturities of twelve months or less to hedge exposures resulting from fluctuations in currency exchange rates. Such exposures result from assets and liabilities that are denominated in currencies other than the functional currencies of the Company's subsidiaries. Forward currency-exchange contracts that hedge forecasted accounts receivable or accounts payable are designated as cash flow hedges and unrecognized gains and losses are recorded to AOCI, net of tax. Deferred gains and losses are recognized in the statement of income in the period in which the underlying transaction occurs. The fair values of forward currency-exchange contracts that are designated as fair value hedges and forward currency-exchange contracts that are not designated as hedges are recognized currently in earnings.
Fair Value Measurement	Fair value measurement is defined as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. A fair value hierarchy is established, which prioritizes the inputs used in measuring fair value into three broad levels as follows: •Level 1—Quoted prices in active markets for identical assets or liabilities. •Level 2—Inputs, other than quoted prices in active markets, that are observable either directly or indirectly. •Level 3—Unobservable inputs based on the Company's own assumptions. The Company uses the market approach technique to value its financial assets and liabilities, and there were no changes in valuation techniques during the first quarter of 2024. Banker's acceptance drafts are carried at face value, which approximates their fair value due to the short-term nature of the negotiable instrument. The fair values of the forward currency-exchange contracts are based on quoted forward foreign exchange rates at the reporting date. The forward currency-exchange contracts are hedges of either recorded assets or liabilities or anticipated transactions and represent the estimated amount the Company would receive or pay upon liquidation of the contracts. Changes in values of the underlying hedged assets and liabilities or anticipated transactions are not reflected in the table above. The carrying value of the Company's revolving credit facility approximates the fair value as the obligation bears variable rates of interest, which adjust frequently, based on prevailing market rates. The fair value of the senior promissory notes is primarily calculated based on quoted market rates plus an applicable margin available to the Company at the respective period end, which represent Level 2 measurements.
Litigation	Litigation From time to time, the Company is subject to various claims and legal proceedings covering a range of matters that arise in the ordinary course of business. Such litigation may include, but is not limited to, claims and counterclaims by and against the Company for breach of contract or warranty, canceled contracts, product liability, or bankruptcy-related claims. For legal proceedings in which a loss is probable and estimable, the Company accrues a loss based on the low end of the range of estimated loss when there is no better estimate within the range. If the Company were found to be liable for any of the claims or counterclaims against it, the Company would incur a charge against earnings for amounts in excess of legal accruals.

Nature of Operations and Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 30, 2024

Use of Estimates and Critical Accounting Policies

The preparation of financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting period. Although the Company makes every effort to ensure the accuracy of the estimates and assumptions used in the preparation of its condensed consolidated financial statements or in the application of accounting policies, if business conditions were different, or if the Company were to use different estimates and assumptions, it is possible that materially different amounts could be reported in the Company's condensed consolidated financial statements.

Restricted Cash

The Company's restricted cash generally serves as collateral for bank guarantees associated with providing assurance to customers that the Company will fulfill certain customer obligations entered into in the normal course of business and for certain banker's acceptance drafts issued to vendors. The majority of these restrictions will expire over the next twelve months.

Intangible Assets, Net

Intangible assets are recorded at fair value at the date of acquisition. Subsequent impairment charges are reflected as a reduction in the gross balance, as applicable. Definite-lived intangible assets are stated net of accumulated amortization and currency translation in the accompanying condensed consolidated balance sheet. The Company amortizes definite-lived intangible assets over lives that have been determined based on the anticipated cash flow benefits of the intangible asset.

Warranty Obligations

The Company's contracts covering the sale of its products include warranty provisions that provide assurance to its customers that the products will comply with agreed-upon specifications during a defined period of time. The Company provides for the estimated cost of product warranties at the time of sale based on historical occurrence rates and repair costs, as well as knowledge of any specific warranty problems that indicate projected warranty costs may vary from historical patterns. The Company negotiates the terms regarding warranty coverage and length of warranty depending on the products and applications.

The Company's liability for warranties is included in other current liabilities in the accompanying condensed consolidated balance sheet.

Revenue Recognition

Most of the Company’s revenue relates to products and services that require minimal customization and is recognized at a point in time for each performance obligation under the contract when the customer obtains control of the goods or service. The remaining portion of the Company’s revenue is recognized over time based on an input method that compares the costs incurred to date to the total expected costs required to satisfy the performance obligation. Contracts are accounted for on an over time basis when they include products which have no alternative use and an enforceable right to payment over time. Most of the contracts recognized on an over time basis are for large capital equipment projects. These projects are highly customized for the customer and, as a result, would include a significant cost to rework in the event of cancellation.

The Company disaggregates its revenue from contracts with customers by reportable operating segment, product type and geography as this best depicts how its revenue is affected by economic factors.

Contract assets represent unbilled revenue associated with revenue recognized on contracts accounted for on an over time basis, which will be billed in future periods based on the contract terms. Contract liabilities consist of short- and long-term customer deposits, advanced billings, and deferred revenue. Deferred revenue is included in other current liabilities, and long-term customer deposits are included in other long-term liabilities in the accompanying condensed consolidated balance sheet. Contract liabilities will be recognized as revenue in future periods once the revenue recognition criteria are met. The majority of the contract liabilities relate to advance payments on contracts accounted for at a point in time. These advance payments will be recognized as revenue when the Company's performance obligations have been satisfied, which typically occurs when the product has shipped and control of the asset has transferred to the customer.

Banker's Acceptance Drafts Included in Accounts Receivable

The Company's Chinese subsidiaries may receive banker's acceptance drafts from customers as payment for their trade accounts receivable. The drafts are non-interest bearing obligations of the issuing bank and generally mature within six months of the origination date. The Company's Chinese subsidiaries may sell the drafts at a discount to a third-party financial institution or transfer the drafts to vendors in settlement of current accounts payable prior to the scheduled maturity date.

Income Taxes

In accordance with Accounting Standards Codification (ASC) 740, Income Taxes (ASC 740), the Company recognizes deferred income taxes based on the expected future tax consequences of differences between the financial statement basis and the tax basis of assets and liabilities, calculated using enacted tax rates in effect for the year in which these differences are expected to reverse. A tax valuation allowance is established, as needed, to reduce deferred tax assets to the amount expected to be realized. In the period in which it becomes more likely than not that some or all of the deferred tax assets will be realized, the valuation allowance will be adjusted.

It is the Company's policy to provide for uncertain tax positions and the related interest and penalties based upon management's assessment of whether a tax benefit is more likely than not to be sustained upon examination by tax authorities. The Company recognizes accrued interest and penalties related to unrecognized tax benefits in the provision for income taxes. At March 30, 2024, the Company believes that it has appropriately accounted for any liability for unrecognized tax benefits. To the extent the Company prevails in matters for which a liability for an unrecognized tax benefit is established, the statute of limitations expires for a tax jurisdiction year, or the Company is required to pay amounts in excess of the liability, its effective tax rate in a given financial statement period may be affected.

Recent Accounting Pronouncements Not Yet Adopted

Business Combinations - Joint Venture Formations (Topic 805), Recognition and Initiation Measurement. In August 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2023-05, to address the diversity in practice on the accounting treatment of joint venture formations. Under this ASU, a joint venture is required to apply a new basis of accounting at its formation date by valuing the net assets contributed at fair value for both business and asset transactions. The value of the net assets in total is then allocated to individual assets and liabilities by applying Topic 805 with certain exceptions. This new guidance is effective for joint ventures with a formation date on or after January 1, 2025 and is required to be applied prospectively. Additionally, joint ventures with a formation date prior to January 1, 2025, have an option to elect to apply the guidance retrospectively, provided adequate information is available. The impact of the adoption of this ASU on the Company's consolidated financial statements will be dependent upon joint ventures formed in future periods.

Segment Reporting - Improving Reportable Segment Disclosures (Topic 280). In November 2023, the FASB issued ASU No. 2023-07, to improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant expenses. Under this ASU, a company is required to enhance its segment disclosures to include significant segment expenses that are regularly provided to the chief operating decision maker (CODM), a description of other segment items by reportable segment, and any additional measures of a segment's profit or loss used by the CODM when deciding how to allocate resources. This ASU also requires all annual disclosures currently required by Topic 280 to be included in interim periods. This ASU is effective for the Company's fiscal year ending December 28, 2024, and interim periods beginning in fiscal 2025, with early adoption permitted, and requires retrospective application to all prior periods presented in the financial statements. The Company is currently evaluating the effects that the adoption of this ASU will have on its consolidated financial statements.

Income Taxes - Improvements to Income Tax Disclosures (Topic 740). In December 2023, the FASB issued ASU No. 2023-09, to improve income tax disclosure requirements, primarily through enhanced disclosures related to the income tax rate reconciliation and income taxes paid. This ASU is effective for fiscal 2025, with early adoption permitted, and may be applied retrospectively. The Company is currently evaluating the effects that the adoption of this ASU will have on its consolidated financial statements.

Acquisitions

AcquisitionsThe Company’s acquisitions have been accounted for using the acquisition method of accounting and the results of the acquired businesses are included in its condensed consolidated financial statements from the date of acquisition. Historically, acquisitions have been made at prices above the fair value of identifiable net assets, resulting in goodwill.

Stock-Based Compensation

The Company recognizes compensation expense for all stock-based awards granted to employees and directors based on the grant date estimate of fair value for those awards. The fair value of RSUs is based on the grant date price of the Company's common stock, reduced by the present value of estimated dividends foregone during the requisite service period. For time-based RSUs, compensation expense is recognized ratably over the requisite service period for the entire award based on the grant date fair value, and net of actual forfeitures recorded when they occur. For performance-based RSUs, compensation expense is recognized ratably over the requisite service period for each separately vesting portion of the award based on the grant date fair value, net of actual forfeitures recorded when they occur, and remeasured each reporting period until the total number of RSUs to be issued is known.The RSUs are subject to adjustment based on the achievement of the performance measure selected for the fiscal year, which is a specified target for adjusted earnings before interest, taxes, depreciation, and amortization (target adjusted EBITDA) generated from operations for the fiscal year. The RSUs are adjusted by comparing the actual adjusted EBITDA for the performance period to the target adjusted EBITDA. Actual adjusted EBITDA between 50% and 100% of the target adjusted EBITDA results in an adjustment of 50% to 100% of the target RSU amount. Actual adjusted EBITDA between 100% and 115% of the target adjusted EBITDA results in an adjustment using a straight-line linear scale between 100% and 150% of the target RSU amount. Actual adjusted EBITDA in excess of 115% results in an adjustment capped at 150% of the target RSU amount. If actual adjusted EBITDA is below 50% of the target adjusted EBITDA for the 2024 fiscal year, these performance-based RSUs will be forfeited. The Company recognizes compensation expense based on the probable number of performance-based RSUs expected to vest. Following the adjustment, the performance-based RSUs will be subject to additional time-based vesting, and will vest in three equal annual installments on March 10 of 2025, 2026, and 2027, provided that the officer is employed by the Company on the applicable vesting dates.

Forward Currency-Exchange Contracts

The Company uses forward currency-exchange contracts that generally have maturities of twelve months or less to hedge exposures resulting from fluctuations in currency exchange rates. Such exposures result from assets and liabilities that are denominated in currencies other than the functional currencies of the Company's subsidiaries.

Forward currency-exchange contracts that hedge forecasted accounts receivable or accounts payable are designated as cash flow hedges and unrecognized gains and losses are recorded to AOCI, net of tax. Deferred gains and losses are recognized in the statement of income in the period in which the underlying transaction occurs. The fair values of forward currency-exchange contracts that are designated as fair value hedges and forward currency-exchange contracts that are not designated as hedges are recognized currently in earnings.

Fair Value Measurement

Fair value measurement is defined as the price that would be received to sell an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. A fair value hierarchy is established, which prioritizes the inputs used in measuring fair value into three broad levels as follows:

•Level 1—Quoted prices in active markets for identical assets or liabilities.

•Level 2—Inputs, other than quoted prices in active markets, that are observable either directly or indirectly.

•Level 3—Unobservable inputs based on the Company's own assumptions.

The Company uses the market approach technique to value its financial assets and liabilities, and there were no changes in valuation techniques during the first quarter of 2024. Banker's acceptance drafts are carried at face value, which approximates their fair value due to the short-term nature of the negotiable instrument. The fair values of the forward currency-exchange contracts are based on quoted forward foreign exchange rates at the reporting date. The forward currency-exchange contracts are hedges of either recorded assets or liabilities or anticipated transactions and represent the estimated amount the Company would receive or pay upon liquidation of the contracts. Changes in values of the underlying hedged assets and liabilities or anticipated transactions are not reflected in the table above.

The carrying value of the Company's revolving credit facility approximates the fair value as the obligation bears variable rates of interest, which adjust frequently, based on prevailing market rates. The fair value of the senior promissory notes is primarily calculated based on quoted market rates plus an applicable margin available to the Company at the respective period end, which represent Level 2 measurements.

Litigation

From time to time, the Company is subject to various claims and legal proceedings covering a range of matters that arise in the ordinary course of business. Such litigation may include, but is not limited to, claims and counterclaims by and against the Company for breach of contract or warranty, canceled contracts, product liability, or bankruptcy-related claims. For legal proceedings in which a loss is probable and estimable, the Company accrues a loss based on the low end of the range of estimated loss when there is no better estimate within the range. If the Company were found to be liable for any of the claims or counterclaims against it, the Company would incur a charge against earnings for amounts in excess of legal accruals.