Name:	dlx_LeasesNotYetCommencedAmountDueAfterYearFive
Namespace Prefix:	dlx_
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Period Type:	instant

For operating leases not yet commenced as of the end of the reporting period, amount of lessee's undiscounted obligation for lease payments to be paid in next fiscal year following current fiscal year.

No definition available.

Name:	dlx_LeasesNotYetCommencedAmountDueInNextFiscalYear
Namespace Prefix:	dlx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

For leases not yet commenced as of the end of the reporting period, amount of lessee's undiscounted obligation for lease payment to be paid in fourth fiscal year following current fiscal year.

No definition available.

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Namespace Prefix:	dlx_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

For leases not yet commenced as of the end of the reporting period, amount of lessee's undiscounted obligation for lease payment to be paid in third fiscal year following current fiscal year.

No definition available.

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Namespace Prefix:	dlx_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

For leases not yet commenced as of the end of the reporting period, amount of lessee's undiscounted obligation for lease payments to be paid in second fiscal year following current fiscal year.

No definition available.

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Namespace Prefix:	dlx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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For leases not yet commenced, amount of lessee's undiscounted obligation for operating lease to be paid in fifth fiscal year following current fiscal year.

No definition available.

Name:	dlx_LeasesNotYetCommencedAmountsDueInYearFive
Namespace Prefix:	dlx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

For leases not yet commenced as of the end of the reporting period, the amount of the applicable early termination penalty.

No definition available.

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Namespace Prefix:	dlx_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Obligations under operating leases that have not yet commenced as of the end of the reporting period.

No definition available.

Name:	dlx_LesseeOperatingLeaseNotYetCommencedAmount
Namespace Prefix:	dlx_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Remaining lease term for operating leases.

No definition available.

Name:	dlx_Remainingleaseterm
Namespace Prefix:	dlx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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.

No definition available.

Name:	us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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Period Type:	duration

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	instant

- References

No definition available.

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Data Type:	xbrli:stringItemType
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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
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Present value of lessee's discounted obligation for lease payments from operating lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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Namespace Prefix:	us-gaap_
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Period Type:	instant

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Name:	us-gaap_OperatingLeasePayments
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount of lessee's right to use underlying asset under operating lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Weighted average discount rate for operating lease calculated at point in time.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Name:	us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
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Name:	us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1
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Period Type:	instant

- References

No definition available.

Name:	us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract
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Data Type:	xbrli:stringItemType
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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

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

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
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Name:	us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LandAndBuildingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis=stpr_MN
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis=stpr_GA
Namespace Prefix:
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