Business Acquisition [Axis] Business Acquisition [Axis] Shares repurchased (shares) Stock Repurchased During Period, Shares Stock Repurchased During Period, Shares Reconciliation to cash flows: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Intersegment sales Segment Reporting, Measurement for Transactions Between Reportable Segments Total Lessee, Operating Lease, Liability, to be Paid Goodwill and Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Income tax expense Income Tax Expense (Benefit) DEFERRED INCOME TAXES Deferred Income Tax Liabilities, Net Fiscal 2027 Lessee, Operating Lease, Liability, to be Paid, Year Four Income Statement [Abstract] Income Statement [Abstract] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Document Fiscal Period Focus Document Fiscal Period Focus Basic earnings per share Earnings Per Share, Basic [Abstract] Cost of sales Cost of Goods and Services Sold Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Weighted average number of shares outstanding - diluted Weighted-average common shares outstanding—diluted Weighted Average Number of Shares Outstanding, Diluted Loss (Gain) on deferred compensation assets Gain (Loss) on Investments Less accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Summary of Inventories Schedule of Inventory, Current [Table Text Block] Cash dividends declared and paid Payments of Ordinary Dividends, Common Stock PROPERTY, PLANT, AND EQUIPMENT: Property, Plant and Equipment, Gross Income Tax Disclosure [Abstract] Common Stock, Dividends, Per Share, Cash Paid Common Stock, Dividends, Per Share, Cash Paid Summary of Inventories Inventory, Net [Abstract] Southeast Water Systems LLC Southeast Water Systems LLC [Member] Southeast Water Systems LLC Common stock; authorized: 60,000,000 shares of $0.01 par value; 20,850,454 and 20,889,777 shares issued and outstanding as of January 1, 2023 and April 3, 2022, respectively Common Stock, Value, Issued Deferred compensation plan asset Deferred Compensation Plan Assets Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Other Payments for (Proceeds from) Other Investing Activities Granted, Weighted average grant date fair value (usd per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Range [Domain] Statistical Measurement [Domain] Vesting of restricted stock (shares) Stock Issued During Period, Shares, Restricted Stock Award, Gross Operating Lease, Weighted Average Discount Rate, Percent Operating Lease, Weighted Average Discount Rate, Percent Short-term Lease, Expense Short-Term Lease, Cost Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Share-Based Payment Arrangement [Abstract] Asset Acquisition [Table] Asset Acquisition [Table] Additional paid-in capital Additional Paid in Capital, Common Stock Lessee, Operating Lease, Option to Extend Lessee, Operating Lease, Option to Extend Cash and cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Liabilities, Current [Abstract] Liabilities, Current [Abstract] Common Stock, Shares, Issued Common Stock, Shares, Issued Net income Net income Net income Net Income (Loss) Attributable to Parent Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Shares or stock options excluded from the calculation of diluted EPS Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Other Intangible Assets Other Intangible Assets [Member] Noncash investing activities - capital expenditures in accounts payable Capital Expenditures Incurred but Not yet Paid Water and Waste Specialties, Inc. Water and Waste Specialties, Inc. [Member] Water and Waste Specialties, Inc. Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Equity Component [Domain] Equity Component [Domain] Amendment Flag Amendment Flag Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Other Comprehensive Income (Loss), Net of Tax Other Comprehensive Income (Loss), Net of Tax ESPP shares issued Stock Issued During Period, Value, Employee Stock Purchase Plan Total comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Fair Value, Liabilities Measured on Recurring Basis [Table Text Block] Fair Value, Liabilities Measured on Recurring Basis [Table Text Block] Lessee, Operating Leases [Text Block] Lessee, Operating Leases [Text Block] Operating leases Finance Lease, Right-of-Use Asset, Amortization Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Summary of Segment Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Entity Current Reporting Status Entity Current Reporting Status Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Other Other Assets, Noncurrent Investment Company, Capital Share Transactions, Stock Repurchased [Abstract] Investment Company, Capital Share Transactions, Stock Repurchased [Abstract] SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION Supplemental Cash Flow Information [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Other [Member] Other [Member] Other [Member] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Remaining fiscal 2023 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Goodwill [Line Items] Goodwill [Line Items] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Entity Address, State or Province Entity Address, State or Province Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Industrial [Member] Industrial [Member] Industrial [Member] Industrial. ESPP shares issued (shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Award Type [Axis] Award Type [Axis] Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Short-term lease liability Operating Lease, Liability, Current Manufactured, blended or repackaged products Manufactured, blended or repackaged products [Member] Manufactured, blended or repackaged products Net property, plant, and equipment Property, Plant and Equipment, Net Summary of performance-based restricted stock units Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Lease liabilities Operating Lease, Payments LIFO Inventory Amount LIFO Inventory Amount Forfeited or expired (Shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Senior secured revolving loan Long-Term Debt Other income (expense) Other Nonoperating Income (Expense) LONG-TERM DEBT, LESS CURRENT PORTION Total long-term debt Long-Term Debt, Excluding Current Maturities Common Stock, Shares Authorized Common Stock, Shares Authorized Total liabilities Liabilities Operating Lease, Weighted Average Remaining Lease Term Operating Lease, Weighted Average Remaining Lease Term Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Income tax payable Accrued Income Taxes, Current Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Maximum [Member] Maximum [Member] CASH FLOWS FROM INVESTING ACTIVITIES: Net Cash Provided by (Used in) Investing Activities [Abstract] Water Treatment [Member] Water Treatment [Member] Water treatment. Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Other Assets [Abstract] Other Assets [Abstract] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Deferred compensation plan asset Assets Held-in-trust, Noncurrent Total current assets Assets, Current Cash paid for income taxes Income Taxes Paid, Net Document Type Document Type Entity Small Business Entity Small Business Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Share Repurchase Program Stockholders' Equity Note Disclosure [Text Block] Cash dividends declared per common share Common Stock, Dividends, Per Share, Declared Common Stock, Dividends, Per Share, Declared Total finite-life intangible assets, Net Finite-Lived Intangible Assets, Net Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Beginning Balance, Weighted average grant date fair value (usd per share) Ending Balance, Weighted average grant date fair value (usd per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Business Segments [Axis] Segments [Axis] Debt Debt Disclosure [Text Block] Restricted stock activity Restricted Stock Activity [Abstract] Restricted stock activity. Product and Service [Domain] Product and Service [Domain] Disaggregation of Revenue [Abstract] Disaggregation of Revenue [Abstract] Entity Shell Company Entity Shell Company Accrued liabilities Increase (Decrease) in Accrued Liabilities Fiscal 2024 Lessee, Operating Lease, Liability, to be Paid, Year One Trade receivables Increase (Decrease) in Accounts Receivable Title of 12(b) Security Title of 12(b) Security Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Document Period End Date Document Period End Date Present value of lease liabilities Operating Lease, Liability Total assets Assets Segment Information Segment Reporting Disclosure [Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Schedule of intangible assets and goodwill Schedule of Intangible Assets and Goodwill [Table Text Block] Performance-Based Restricted Stock [Member] Performance Shares [Member] Liabilities and Equity [Abstract] Liabilities and Equity [Abstract] Shares outstanding, beginning balance Shares outstanding, ending balance Shares, Issued Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Current portion of long-term debt Less: current portion of long-term debt Long-Term Debt, Current Maturities Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Summary of basic and diluted EPS Weighted Average Number of Shares Outstanding, Diluted [Abstract] Accounting Policies [Abstract] Inventories Inventory, Net, Total Inventory, Net Accrued payroll and employee benefits Employee-related Liabilities, Current Accounts payable — trade Accounts Payable, Current SHAREHOLDERS’ EQUITY: Stockholders' Equity Attributable to Parent [Abstract] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Segment [Domain] Segment [Domain] Segments [Domain] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Earnings per Share Earnings Per Share [Text Block] Proceeds from revolving loan borrowings Proceeds from Other Debt DEFERRED COMPENSATION LIABILITY Deferred Compensation Liability, Classified, Noncurrent NAPCO Chemical Company, Inc. NAPCO Chemical Company, Inc. [Member] NAPCO Chemical Company, Inc. PENSION WITHDRAWAL LIABILITY Liability, Defined Benefit Pension Plan, Noncurrent Entity Filer Category Entity Filer Category Weighted average number of shares outstanding - basic Weighted-average common shares outstanding—basic Weighted Average Number of Shares Outstanding, Basic Award Type [Domain] Award Type [Domain] New shares issued Proceeds from Stock Plans Vesting of restricted stock Stock Issued During Period, Value, Restricted Stock Award, Gross Acquisitions Payments to Acquire Businesses, Gross Payments to Acquire Businesses, Gross Inventory, Finished Goods, Gross Inventory, Finished Goods, Gross Compensation expense Share-Based Payment Arrangement, Expense Gross profit Gross profit Gross Profit COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Security Exchange Name Security Exchange Name Entity Registrant Name Entity Registrant Name Restricted Stock Awards [Member] Restricted Stock [Member] Customer Relationships [Member] Customer Relationships [Member] Entity Address, City or Town Entity Address, City or Town Income taxes Increase (Decrease) in Income Taxes Payable Leases [Abstract] Leases [Abstract] Payments on revolving loan Repayments of Other Debt Cover [Abstract] Share-Based Compensation Share-Based Payment Arrangement [Text Block] Total other assets Other Assets Minimum [Member] Minimum [Member] Business Combinations [Abstract] Revenue from Contract with Customer Revenue from Contract with Customer [Text Block] Segment Reporting [Abstract] Segment Reporting [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Entity Emerging Growth Company Entity Emerging Growth Company Common stock, par value (usd per share) Common Stock, Par or Stated Value Per Share Unrealized (loss) gain on interest rate swap Unrealized Gain (Loss) on Derivatives Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Distributed specialty products Distributed specialty products [Member] Distributed specialty products Interest expense, net Interest Income (Expense), Net Shares surrendered for payroll taxes Payroll taxes paid in exchange for shares withheld Payment, Tax Withholding, Share-Based Payment Arrangement Total liabilities and shareholders’ equity Liabilities and Equity Trading Symbol Trading Symbol Entity File Number Entity File Number Number of customer representing 10 percent or more of revenue (customers) Segment Reporting, Disclosure of Major Customers Diluted earnings per share Earnings Per Share, Diluted [Abstract] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Granted (Shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Effective Income Tax Rate Reconciliation, Percent Effective Income Tax Rate Reconciliation, Percent Current Fiscal Year End Date Current Fiscal Year End Date Total debt, net of debt issuance costs Total debt, net of debt issuance costs total debt, net of debt issuance costs Less: Interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Summary of Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Diluted earnings per share Earnings Per Share, Diluted Intangible assets, net of accumulated amortization Total intangible assets, net Intangible Assets, Net (Excluding Goodwill) Business Combination Disclosure Business Combination Disclosure [Text Block] Accounts payable Increase (Decrease) in Accounts Payable Share-based compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Sales Revenue Revenues Total current liabilities Liabilities, Current Business Combination, Consideration Transferred, Liabilities Incurred Business Combination, Consideration Transferred, Liabilities Incurred Fiscal 2025 Lessee, Operating Lease, Liability, to be Paid, Year Two Income Tax Disclosure [Text Block] Income Tax Disclosure [Text Block] Bulk products Bulk products [Member] Bulk products Total Intangible Assets, Gross Intangible Assets, Gross (Excluding Goodwill) Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Basic earnings per share Earnings Per Share, Basic Fiscal 2026 Lessee, Operating Lease, Liability, to be Paid, Year Three Lessee, Operating Lease, Liability, Maturity [Table Text Block] Lessee, Operating Lease, Liability, Maturity [Table Text Block] Entity Address, Address Line One Entity Address, Address Line One Total shareholders’ equity Stockholders' equity, beginning balance Stockholders' equity, ending balance Stockholders' Equity Attributable to Parent Product and Service [Axis] Product and Service [Axis] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Entity Interactive Data Current Entity Interactive Data Current Finite-life intangible assets, Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Changes in operating accounts providing (using) cash: Increase (Decrease) in Operating Capital [Abstract] Inventories Inventory Disclosure [Text Block] Schedule of Long-term Debt Instruments Schedule of Long-Term Debt Instruments [Table Text Block] Quarterly Financial Information, Segment Reporting, Segment Assets, Material Change Quarterly Financial Information, Segment Reporting, Segment Assets, Material Change Retained Earnings [Member] Retained Earnings [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Cash dividends declared and paid Dividends, Common Stock, Cash Vested (Shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Entity Tax Identification Number Entity Tax Identification Number Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Less: unamortized debt issuance costs Unamortized Debt Issuance Expense Inventory, LIFO Reserve Inventory, LIFO Reserve NET INCREASE IN CASH AND CASH EQUIVALENTS Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Income before income taxes Income (Loss) Attributable to Parent, before Tax Common Stock [Member] Common Stock [Member] Number of reportable segments (segments) Number of Reportable Segments Health and Nutrition [Member] Health and Nutrition [Member] Health and Nutrition [Member] Asset Acquisition [Line Items] Asset Acquisition [Line Items] Lease, Cost Lease, Cost [Table Text Block] Shares repurchased Shares repurchased Payments for Repurchase of Equity Statement [Table] Statement [Table] Disaggregation of Revenue [Table Text Block] Disaggregation of Revenue [Table Text Block] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Lessee, Operating Lease, Renewal Term Lessee, Operating Lease, Renewal Term Document Quarterly Report Document Quarterly Report Shares surrendered for payroll taxes (shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Assets, Current [Abstract] Assets, Current [Abstract] LONG-TERM LEASE LIABILITY Operating Lease, Liability, Noncurrent Range [Axis] Statistical Measurement [Axis] Indefinite-life intangible assets Indefinite-Lived Intangible Assets (Excluding Goodwill) Dilutive impact of performance units and restricted stock Weighted Average Number of Shares Outstanding, Diluted, Adjustment Retained earnings Retained Earnings (Accumulated Deficit) Other Other Operating Activities, Cash Flow Statement Trade accounts receivables, net Accounts Receivable, after Allowance for Credit Loss, Current Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Entity Central Index Key Entity Central Index Key Equity Components [Axis] Equity Components [Axis] Trademarks [Member] Trademarks [Member] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block] Fair Value Measurement and Measurement Inputs, Recurring and Nonrecurring [Text Block] Other current liabilities Other Accrued Liabilities, Current Stock Repurchase Program, Number of Shares Authorized to be Repurchased Stock Repurchase Program, Number of Shares Authorized to be Repurchased Document Fiscal Year Focus Document Fiscal Year Focus CASH FLOWS FROM OPERATING ACTIVITIES: Net Cash Provided by (Used in) Operating Activities [Abstract] City Area Code City Area Code Statement [Line Items] Statement [Line Items] Assets [Abstract] Assets [Abstract] Interest rate swap Cash Flow Hedge Derivative Instrument Assets at Fair Value Other Increase (Decrease) in Other Operating Assets and Liabilities, Net Unvested at beginning of period (Shares) Unvested at end of period (Shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Finite-life intangible assets, Gross Carrying Amount Finite-Lived Intangible Assets, Gross Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Selling, general and administrative expenses Selling, general, and administrative expenses Selling, General and Administrative Expense CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided by (Used in) Financing Activities [Abstract] Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased Right-of-use assets Operating Lease, Right-of-Use Asset Stock Repurchased During Period, Value Stock Repurchased During Period, Value AOCI Attributable to Parent [Member] AOCI Attributable to Parent [Member] Stock compensation expense Share-Based Payment Arrangement, Noncash Expense OTHER LONG-TERM LIABILITIES Other Liabilities, Noncurrent Operating Lease, Expense Operating Lease, Expense Document Transition Report Document Transition Report Local Phone Number Local Phone Number Purchases of property, plant, and equipment Payments to Acquire Property, Plant, and Equipment Number of operating segments aggregated (segments) Number of Operating Segments Aggregated Number of operating segments aggregated. Operating income Operating income Operating Income (Loss) Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Inventories Increase (Decrease) in Inventories Summary of basic and diluted EPS Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Common Stock, Shares, Outstanding Common Stock, Shares, Outstanding Goodwill Goodwill Goodwill