Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities
Net income	$ 36,453us-gaap_NetIncomeLoss	$ 72,037us-gaap_NetIncomeLoss	$ 127,674us-gaap_NetIncomeLoss
Adjustments to reconcile net income to cash flows provided by operating activities:
Depreciation and amortization	34,745	35,355	39,538
Non-cash interest expense	5,770	6,246	5,985
Loss on extinguishment of debt	64,859	58	5,554
Closure and impairment charges	3,687	2,195	3,931
Deferred income taxes	(30,236)	(22,674)	(22,832)
Non-cash stock-based compensation expense	9,319us-gaap_ShareBasedCompensation	9,364us-gaap_ShareBasedCompensation	11,442us-gaap_ShareBasedCompensation
Tax benefit from stock-based compensation	4,316	3,690	6,814
Excess tax benefit from stock options exercised	(5,028)	(2,858)	(5,669)
Loss (gain) on disposition of assets	329us-gaap_GainLossOnDispositionOfAssets	(223)us-gaap_GainLossOnDispositionOfAssets	(102,597)us-gaap_GainLossOnDispositionOfAssets
Other	(3,344)	(492)	(8,991)
Changes in operating assets and liabilities:
Receivables	(7,997)us-gaap_IncreaseDecreaseInReceivables	(15,226)us-gaap_IncreaseDecreaseInReceivables	(11,629)us-gaap_IncreaseDecreaseInReceivables
Current income tax receivables and payables	(5,868)	6,143	1,272
Other current assets	(1,771)	9,334	(9,119)
Accounts payable	1,245	8,532	1,778
Accrued employee compensation and benefits	767	2,521	(3,756)
Gift card liability	7,803	10,266	14,735
Other accrued expenses	3,475	3,547	(1,251)
Cash flows provided by operating activities	118,524	127,815	52,879
Cash flows from investing activities
Additions to property and equipment	(5,937)	(7,037)	(16,952)
Proceeds from sale of property and equipment and assets held for sale	681	0	168,881
Principal receipts from notes, equipment contracts and other long-term receivables	15,284	13,982	12,250
Other	540	58	1,238
Cash flows provided by investing activities	10,568	7,003	165,417
Cash flows from financing activities
Borrowings under revolving credit facilities	0	0	50,000
Repayments under revolving credit facilities	0	0	(50,000)
Proceeds from issuance of long-term debt	1,300,000	0	0
Repayment of long-term debt (including premiums)	(1,264,086)us-gaap_RepaymentsOfLongTermDebt	(4,800)us-gaap_RepaymentsOfLongTermDebt	(216,037)us-gaap_RepaymentsOfLongTermDebt
Principal payments on capital lease and financing obligations	(11,825)	(9,968)	(10,849)
Payment of debt modification/issuance costs	(24,192)us-gaap_PaymentsOfDebtIssuanceCosts	(1,296)us-gaap_PaymentsOfDebtIssuanceCosts	0us-gaap_PaymentsOfDebtIssuanceCosts
Dividends paid on common stock	(42,733)us-gaap_PaymentsOfDividendsCommonStock	(57,445)us-gaap_PaymentsOfDividendsCommonStock	0us-gaap_PaymentsOfDividendsCommonStock
Repurchase of DineEquity common stock	(32,006)	(29,698)	0
Repurchase of restricted stock	(3,194)	(3,324)	(1,740)
Proceeds from stock options exercised	8,207	9,080	9,254
Excess tax benefit from stock options exercised	5,028	2,858	5,669
Change in restricted cash	(66,298)	1,249	(747)
Cash flows used in financing activities	(131,099)	(93,344)	(214,450)
Net change in cash and cash equivalents	(2,007)	41,474	3,846
Cash and cash equivalents at beginning of year	106,011	64,537	60,691
Cash and cash equivalents at end of year	104,004	106,011	64,537
Supplemental disclosures
Interest paid	104,164us-gaap_InterestPaidNet	106,784us-gaap_InterestPaidNet	123,926us-gaap_InterestPaidNet
Income taxes paid	$ 47,226us-gaap_IncomeTaxesPaid	$ 50,702us-gaap_IncomeTaxesPaid	$ 91,354us-gaap_IncomeTaxesPaid

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Increase Decrease Deferred Tax Expense Benefit

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Reductions in the entity's income taxes that arise when compensation cost (from non-qualified stock-based compensation) recognized on the entity's tax return exceeds compensation cost from stock-based compensation recognized on the income statement. This element increases net cash provided by operating activities.

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Amount of noncash expense included in interest expense to allocate debt discount and premium, and the costs to issue debt and obtain financing over the related debt instruments. Alternate captions include noncash interest expense.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.

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The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

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The increase (decrease) during the reporting period in the obligation for outstanding gift cards. Retail customers purchase gift cards or gift certificates that can be redeemed at a later date for merchandise or services; those unredeemed represent a liability of the entity because the revenue is being deferred.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow to reacquire other equity not otherwise defined in the taxonomy.

+ References

+ Details

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

- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

+ References

+ Details

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

- Definition

Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

+ References

+ Details

Name:	us-gaap_PaymentsOfDividendsCommonStock
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 cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

+ Details

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

- Definition

The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

+ Details

Name:	us-gaap_ProceedsFromLongTermLinesOfCredit
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

+ Details

Name:	us-gaap_ProceedsFromStockOptionsExercised
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

+ Details

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

- Definition

The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

+ Details

Name:	us-gaap_RepaymentsOfLongTermLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

+ Details

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

- Details

Name:	us-gaap_SupplementalCashFlowInformationAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration