Leases - Lease Receivables (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Direct financing leases receivable
Lease [Line Items]
Total minimum rents receivable	$ 108.9	$ 126.7
Less: unearned income	(35.2)	(45.1)
Net investment in direct financing leases receivable	73.7	81.6
Less: current portion	(8.7)	(8.0)
Long-term direct financing lease receivable	65.0	73.6
Contingent rental income	16.7	14.1	$ 12.7
Net investment equipment lease
Lease [Line Items]
Less: current portion	(7.5)	(7.4)
Long-term direct financing lease receivable	88.0	99.9
Total minimum leases receivable	140.5	165.4
Less: unearned income	(45.0)	(58.1)
Net investment in equipment leases receivables	$ 95.5	$ 107.3

Lease [Line Items]

No definition available.

Name:	din_LeaseLineItems
Namespace Prefix:	din_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Net Investment in Leases Receivable, Current

+ References

No definition available.

+ Details

Name:	din_NetInvestmentInLeasesReceivableCurrent
Namespace Prefix:	din_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Net Investment in Leases Receivable, Noncurrent

+ References

No definition available.

+ Details

Name:	din_NetInvestmentInLeasesReceivableNoncurrent
Namespace Prefix:	din_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

For sales-type and direct financing leases, total contingent rentals received during the period.

+ References

+ Details

Name:	us-gaap_CapitalLeasesContingentRentalPaymentsReceived
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The net investment in direct financing leases as of the balance sheet date consisting of: (a) minimum lease payments due on direct financing leases, (b) unguaranteed residual value, and (c) any unamortized initial direct costs; less: (i) executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments.

+ References

+ Details

Name:	us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeases
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The remaining (unamortized) difference between the gross investment in a direct financing lease and the cost or carrying amount, if different, of the leased property as of the balance sheet date.

+ References

+ Details

Name:	us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeasesDeferredIncome
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of remaining payments as of the balance sheet date that lessees are obligated to make or can be required to make under direct financing leases, including any guarantee of residual value and executory costs. The amount also includes any guaranteed rental payments by an unrelated third-party provided that are financially capable of making such payments.

+ References

+ Details

Name:	us-gaap_CapitalLeasesNetInvestmentInDirectFinancingLeasesMinimumPaymentsToBeReceived
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The net investment in sales type leases as of the balance sheet date consisting of: (a) minimum lease payments on sales type leases and (b) unguaranteed residual value; less: (i) executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments.

+ References

+ Details

Name:	us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeases
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The remaining (unamortized) difference between the gross investment in a sales-type lease and the cost or carrying amount of the leased property as of the balance sheet date.

+ References

+ Details

Name:	us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesDeferredIncome
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of remaining payments as of the balance sheet date that lessees are obligated to make or can be required to make under sales-type leases, including any guarantee of residual value and executory costs. The amount also includes any guaranteed rental payments by an unrelated third-party provided that are financially capable of making such payments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=25496975&loc=d3e45377-112738

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 25
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=7661868&loc=d3e34102-112682

+ Details

Name:	us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesMinimumPaymentsToBeReceived
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	din_LeasetypeAxis=din_DirectFinancingLeasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	din_LeasetypeAxis=din_NetInvestmentEquipmentLeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: