Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net income	$ 28,412us-gaap_NetIncomeLoss	$ 20,824us-gaap_NetIncomeLoss
Adjustments to reconcile net income to cash flows provided by operating activities:
Depreciation and amortization	7,815	8,783
Non-cash interest expense	755	1,642
Deferred income taxes	(10,378)us-gaap_DeferredIncomeTaxExpenseBenefit	(10,031)us-gaap_DeferredIncomeTaxExpenseBenefit
Non-cash stock-based compensation expense	2,432us-gaap_ShareBasedCompensation	3,143us-gaap_ShareBasedCompensation
Tax benefit from stock-based compensation	4,696	3,524
Excess tax benefit from stock-based compensation	(4,526)	(4,455)
Closure and impairment charges	1,827	200
(Gain) loss on disposition of assets	(9)us-gaap_GainLossOnDispositionOfAssets	927us-gaap_GainLossOnDispositionOfAssets
Other	31	(396)
Changes in operating assets and liabilities:
Accounts receivable, net	(2,742)us-gaap_IncreaseDecreaseInReceivables	(9,767)us-gaap_IncreaseDecreaseInReceivables
Current income tax receivables and payables	22,341	18,020
Gift card receivables and payables	5,623	2,982
Prepaid expenses and other current assets	(1,638)	(751)
Accounts payable	1,034	9,175
Accrued employee compensation and benefits	(14,810)	(14,857)
Other accrued expenses	267	23,877
Cash flows provided by operating activities	41,130	52,840
Cash flows from investing activities:
Additions to property and equipment	(2,617)	(2,039)
Proceeds from sale of property and equipment	0	681
Principal receipts from notes, equipment contracts and other long-term receivables	4,442	3,415
Other	(40)	(55)
Cash flows provided by investing activities	1,785	2,002
Cash flows from financing activities:
Repayment of long-term debt	0us-gaap_RepaymentsOfLongTermDebt	(1,200)us-gaap_RepaymentsOfLongTermDebt
Principal payments on capital lease and financing obligations	(3,165)	(2,695)
Repurchase of DineEquity common stock	(15,003)	(15,002)
Dividends paid on common stock	(16,598)us-gaap_PaymentsOfDividends	(14,293)us-gaap_PaymentsOfDividends
Repurchase of restricted stock	(2,961)	(1,831)
Proceeds from stock options exercised	8,206	6,623
Excess tax benefit from stock-based compensation	4,526	4,455
Change in restricted cash	11,561	(3,692)
Other	(15)	0
Cash flows used in financing activities	(13,449)	(27,635)
Net change in cash and cash equivalents	29,466	27,207
Cash and cash equivalents at beginning of period	104,004	106,011
Cash and cash equivalents at end of period	133,470	133,218
Supplemental disclosures:
Interest paid in cash	28,387us-gaap_InterestPaidNet	8,901us-gaap_InterestPaidNet
Income taxes paid in cash	$ 1,172us-gaap_IncomeTaxesPaid	$ 2,294us-gaap_IncomeTaxesPaid

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

- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

+ Details

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

- Definition

The net cash inflow or outflow from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3095-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 9

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3098-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

+ Details

Name:	us-gaap_ProceedsFromSaleOfProductiveAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (j)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer).

+ References

+ Details

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

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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Period Type:	duration

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration