3.26.1 html 272 302 1 true 62 0 false 5 false false R1.htm 0000001 - Document - Document Sheet http://www.deluxe.com/role/Document Document Cover 1 false false R2.htm 9952151 - Statement - CONSOLIDATED BALANCE SHEETS (Unaudited) Sheet http://www.deluxe.com/role/CONSOLIDATEDBALANCESHEETSUnaudited CONSOLIDATED BALANCE SHEETS (Unaudited) Statements 2 false false R3.htm 9952152 - Statement - CONSOLIDATED BALANCE SHEETS (Unaudited) (Parentheticals) Sheet http://www.deluxe.com/role/CONSOLIDATEDBALANCESHEETSUnauditedParentheticals CONSOLIDATED BALANCE SHEETS (Unaudited) (Parentheticals) Statements 3 false false R4.htm 9952153 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) Sheet http://www.deluxe.com/role/CONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUnaudited CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) Statements 4 false false R5.htm 9952154 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) Sheet http://www.deluxe.com/role/CONSOLIDATEDSTATEMENTSOFSHAREHOLDERSEQUITYUnaudited CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) Statements 5 false false R6.htm 9952155 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) (Parentheticals) Sheet http://www.deluxe.com/role/CONSOLIDATEDSTATEMENTSOFSHAREHOLDERSEQUITYUnauditedParentheticals CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) (Parentheticals) Statements 6 false false R7.htm 9952156 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) Sheet http://www.deluxe.com/role/CONSOLIDATEDSTATEMENTSOFCASHFLOWSUnaudited CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) Statements 7 false false R8.htm 9952157 - Disclosure - Consolidated financial statements Sheet http://www.deluxe.com/role/Consolidatedfinancialstatements Consolidated financial statements Notes 8 false false R9.htm 9952158 - Disclosure - New accounting pronouncements Sheet http://www.deluxe.com/role/Newaccountingpronouncements New accounting pronouncements Notes 9 false false R10.htm 9952159 - Disclosure - Supplemental balance sheet and cash flow information Sheet http://www.deluxe.com/role/Supplementalbalancesheetandcashflowinformation Supplemental balance sheet and cash flow information Notes 10 false false R11.htm 9952160 - Disclosure - Shareholders' equity Sheet http://www.deluxe.com/role/Shareholdersequity Shareholders' equity Notes 11 false false R12.htm 9952161 - Disclosure - Earnings per share Sheet http://www.deluxe.com/role/Earningspershare Earnings per share Notes 12 false false R13.htm 9952162 - Disclosure - Acquisition and divestitures Sheet http://www.deluxe.com/role/Acquisitionanddivestitures Acquisition and divestitures Notes 13 false false R14.htm 9952163 - Disclosure - Fair value measurements Sheet http://www.deluxe.com/role/Fairvaluemeasurements Fair value measurements Notes 14 false false R15.htm 9952164 - Disclosure - Restructuring and integration expense Sheet http://www.deluxe.com/role/Restructuringandintegrationexpense Restructuring and integration expense Notes 15 false false R16.htm 9952165 - Disclosure - Income taxes Sheet http://www.deluxe.com/role/Incometaxes Income taxes Notes 16 false false R17.htm 9952166 - Disclosure - Postretirement benefits Sheet http://www.deluxe.com/role/Postretirementbenefits Postretirement benefits Notes 17 false false R18.htm 9952167 - Disclosure - Debt Sheet http://www.deluxe.com/role/Debt Debt Notes 18 false false R19.htm 9952168 - Disclosure - Other commitments and contingencies Sheet http://www.deluxe.com/role/Othercommitmentsandcontingencies Other commitments and contingencies Notes 19 false false R20.htm 9952169 - Disclosure - Business segment information Sheet http://www.deluxe.com/role/Businesssegmentinformation Business segment information Notes 20 false false R21.htm 9952170 - Disclosure - Subsequent event Sheet http://www.deluxe.com/role/Subsequentevent Subsequent event Notes 21 false false R22.htm 995445 - Disclosure - Insider Trading Arrangements Sheet http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements Insider Trading Arrangements Notes 22 false false R23.htm 9955511 - Disclosure - Consolidated financial statements (Policies) Sheet http://www.deluxe.com/role/ConsolidatedfinancialstatementsPolicies Consolidated financial statements (Policies) Policies 23 false false R24.htm 9955512 - Disclosure - New accounting pronouncements (Policies) Sheet http://www.deluxe.com/role/NewaccountingpronouncementsPolicies New accounting pronouncements (Policies) Policies 24 false false R25.htm 9955513 - Disclosure - Supplemental balance sheet and cash flow information (Tables) Sheet http://www.deluxe.com/role/SupplementalbalancesheetandcashflowinformationTables Supplemental balance sheet and cash flow information (Tables) Tables http://www.deluxe.com/role/Supplementalbalancesheetandcashflowinformation 25 false false R26.htm 9955514 - Disclosure - Shareholders' equity (Tables) Sheet http://www.deluxe.com/role/ShareholdersequityTables Shareholders' equity (Tables) Tables http://www.deluxe.com/role/Shareholdersequity 26 false false R27.htm 9955515 - Disclosure - Earnings per share (Tables) Sheet http://www.deluxe.com/role/EarningspershareTables Earnings per share (Tables) Tables http://www.deluxe.com/role/Earningspershare 27 false false R28.htm 9955516 - Disclosure - Acquisition and divestitures (Tables) Sheet http://www.deluxe.com/role/AcquisitionanddivestituresTables Acquisition and divestitures (Tables) Tables http://www.deluxe.com/role/Acquisitionanddivestitures 28 false false R29.htm 9955517 - Disclosure - Fair value measurements (Tables) Sheet http://www.deluxe.com/role/FairvaluemeasurementsTables Fair value measurements (Tables) Tables http://www.deluxe.com/role/Fairvaluemeasurements 29 false false R30.htm 9955518 - Disclosure - Restructuring and integration expense (Tables) Sheet http://www.deluxe.com/role/RestructuringandintegrationexpenseTables Restructuring and integration expense (Tables) Tables http://www.deluxe.com/role/Restructuringandintegrationexpense 30 false false R31.htm 9955519 - Disclosure - Postretirement benefits (Tables) Sheet http://www.deluxe.com/role/PostretirementbenefitsTables Postretirement benefits (Tables) Tables http://www.deluxe.com/role/Postretirementbenefits 31 false false R32.htm 9955520 - Disclosure - Debt (Tables) Sheet http://www.deluxe.com/role/DebtTables Debt (Tables) Tables http://www.deluxe.com/role/Debt 32 false false R33.htm 9955521 - Disclosure - Business segment information (Tables) Sheet http://www.deluxe.com/role/BusinesssegmentinformationTables Business segment information (Tables) Tables http://www.deluxe.com/role/Businesssegmentinformation 33 false false R34.htm 9955522 - Disclosure - Supplemental balance sheet and cash flow information (trade accounts receivable, allowance for credit losses) (Details) Sheet http://www.deluxe.com/role/SupplementalbalancesheetandcashflowinformationtradeaccountsreceivableallowanceforcreditlossesDetails Supplemental balance sheet and cash flow information (trade accounts receivable, allowance for credit losses) (Details) Details http://www.deluxe.com/role/SupplementalbalancesheetandcashflowinformationTables 34 false false R35.htm 9955523 - Disclosure - Supplemental balance sheet and cash flow information (inventories and supplies) (Details) Sheet http://www.deluxe.com/role/SupplementalbalancesheetandcashflowinformationinventoriesandsuppliesDetails Supplemental balance sheet and cash flow information (inventories and supplies) (Details) Details http://www.deluxe.com/role/SupplementalbalancesheetandcashflowinformationTables 35 false false R36.htm 9955524 - Disclosure - Supplemental balance sheet and cash flow information (revenue in excess of billings) (Details) Sheet http://www.deluxe.com/role/SupplementalbalancesheetandcashflowinformationrevenueinexcessofbillingsDetails Supplemental balance sheet and cash flow information (revenue in excess of billings) (Details) Details http://www.deluxe.com/role/SupplementalbalancesheetandcashflowinformationTables 36 false false R37.htm 9955525 - Disclosure - Supplemental balance sheet and cash flow information (goodwill) (Details) Sheet http://www.deluxe.com/role/SupplementalbalancesheetandcashflowinformationgoodwillDetails Supplemental balance sheet and cash flow information (goodwill) (Details) Details http://www.deluxe.com/role/SupplementalbalancesheetandcashflowinformationTables 37 false false R38.htm 9955526 - Disclosure - Supplemental balance sheet and cash flow information (intangibles) (Details) Sheet http://www.deluxe.com/role/SupplementalbalancesheetandcashflowinformationintangiblesDetails Supplemental balance sheet and cash flow information (intangibles) (Details) Details http://www.deluxe.com/role/SupplementalbalancesheetandcashflowinformationTables 38 false false R39.htm 9955527 - Disclosure - Supplemental balance sheet and cash flow information (other non-current assets) (Details) Sheet http://www.deluxe.com/role/SupplementalbalancesheetandcashflowinformationothernoncurrentassetsDetails Supplemental balance sheet and cash flow information (other non-current assets) (Details) Details http://www.deluxe.com/role/SupplementalbalancesheetandcashflowinformationTables 39 false false R40.htm 9955528 - Disclosure - Supplemental balance sheet and cash flow information (accrued liabilities, supplemental cash flow information) (Details) Sheet http://www.deluxe.com/role/SupplementalbalancesheetandcashflowinformationaccruedliabilitiessupplementalcashflowinformationDetails Supplemental balance sheet and cash flow information (accrued liabilities, supplemental cash flow information) (Details) Details http://www.deluxe.com/role/SupplementalbalancesheetandcashflowinformationTables 40 false false R41.htm 9955529 - Disclosure - Shareholders' equity (accumulated other comprehensive loss) (Details) Sheet http://www.deluxe.com/role/ShareholdersequityaccumulatedothercomprehensivelossDetails Shareholders' equity (accumulated other comprehensive loss) (Details) Details http://www.deluxe.com/role/ShareholdersequityTables 41 false false R42.htm 9955530 - Disclosure - Shareholders' equity (reclassification adjustments) (Details) Sheet http://www.deluxe.com/role/ShareholdersequityreclassificationadjustmentsDetails Shareholders' equity (reclassification adjustments) (Details) Details http://www.deluxe.com/role/ShareholdersequityTables 42 false false R43.htm 9955531 - Disclosure - Earnings per share (Details) Sheet http://www.deluxe.com/role/EarningspershareDetails Earnings per share (Details) Details http://www.deluxe.com/role/EarningspershareTables 43 false false R44.htm 9955532 - Disclosure - Acquisition and divestitures (Details) Sheet http://www.deluxe.com/role/AcquisitionanddivestituresDetails Acquisition and divestitures (Details) Details http://www.deluxe.com/role/AcquisitionanddivestituresTables 44 false false R45.htm 9955533 - Disclosure - Fair value measurements (Details) Sheet http://www.deluxe.com/role/FairvaluemeasurementsDetails Fair value measurements (Details) Details http://www.deluxe.com/role/FairvaluemeasurementsTables 45 false false R46.htm 9955534 - Disclosure - Restructuring and integration expense (Details) Sheet http://www.deluxe.com/role/RestructuringandintegrationexpenseDetails Restructuring and integration expense (Details) Details http://www.deluxe.com/role/RestructuringandintegrationexpenseTables 46 false false R47.htm 9955535 - Disclosure - Restructuring and integration expense (accruals) (Details) Sheet http://www.deluxe.com/role/RestructuringandintegrationexpenseaccrualsDetails Restructuring and integration expense (accruals) (Details) Details http://www.deluxe.com/role/RestructuringandintegrationexpenseTables 47 false false R48.htm 9955536 - Disclosure - Income taxes (Details) Sheet http://www.deluxe.com/role/IncometaxesDetails Income taxes (Details) Details http://www.deluxe.com/role/Incometaxes 48 false false R49.htm 9955537 - Disclosure - Postretirement benefits (Details) Sheet http://www.deluxe.com/role/PostretirementbenefitsDetails Postretirement benefits (Details) Details http://www.deluxe.com/role/PostretirementbenefitsTables 49 false false R50.htm 9955538 - Disclosure - Debt (Details) Sheet http://www.deluxe.com/role/DebtDetails Debt (Details) Details http://www.deluxe.com/role/DebtTables 50 false false R51.htm 9955539 - Disclosure - Other commitments and contingencies (Details) Sheet http://www.deluxe.com/role/OthercommitmentsandcontingenciesDetails Other commitments and contingencies (Details) Details http://www.deluxe.com/role/Othercommitmentsandcontingencies 51 false false R52.htm 9955540 - Disclosure - Business segment information (Details) Sheet http://www.deluxe.com/role/BusinesssegmentinformationDetails Business segment information (Details) Details http://www.deluxe.com/role/BusinesssegmentinformationTables 52 false false R53.htm 9955541 - Disclosure - Business segment information (disaggregated revenue information) (Details) Sheet http://www.deluxe.com/role/BusinesssegmentinformationdisaggregatedrevenueinformationDetails Business segment information (disaggregated revenue information) (Details) Details http://www.deluxe.com/role/BusinesssegmentinformationTables 53 false false All Reports Book All Reports dlx-20260630.htm dlx-20260630.xsd dlx-20260630_cal.xml dlx-20260630_def.xml dlx-20260630_lab.xml dlx-20260630_pre.xml dlx-20260630_g1.jpg http://fasb.org/us-gaap/2026 http://xbrl.sec.gov/dei/2026 http://xbrl.sec.gov/ecd/2026 true true