Subsequent Events	3 Months Ended
Mar. 27, 2013
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Refinancing of Credit Facility On April 24, 2013, Denny's Corporation and certain of its subsidiaries refinanced our credit facility (the "Old Credit Facility") and entered into a new senior secured credit agreement in an aggregate principal amount of $250 million (the “New Credit Facility”). The New Credit Facility is comprised of a $60 million senior secured term loan and a $190 million senior secured revolver (with a $30 million letter of credit sublimit). As of the closing, there were $105 million of borrowings outstanding under the new revolver. Borrowings under the New Credit Facility bear a tiered interest rate based on the Company's consolidated leverage ratio and is initially set at LIBOR plus 200 basis points. The New Credit Facility includes an accordion feature that would allow us to increase the size of the facility to $300 million. The maturity date for the New Credit Facility is April 24, 2018. The New Credit Facility is being used to refinance the Old Credit Facility (described in Note 7) and will also be available for working capital, capital expenditures and other general corporate purposes. The New Credit Facility is guaranteed by the Company and its material subsidiaries and is secured by substantially all of the assets of the Company and its subsidiaries, including the stock of the Company's subsidiaries. It includes negative covenants that are usual for facilities and transactions of this type. The New Credit Facility also includes certain financial covenants with respect to a maximum consolidated leverage ratio, a minimum consolidated fixed charge coverage ratio and maximum capital expenditures. The term loan under the New Credit Facility requires amortization of the original term loan balance of 5% per year in the first two years, 7.5% in the subsequent two years and 10% in the fifth year with the balance due at maturity. We will be required to make certain mandatory prepayments under certain circumstances and will have the option to make certain prepayments under the New Credit Facility. The New Credit Facility includes events of default (and related remedies, including acceleration and increased interest rates following an event of default) that are usual for facilities and transactions of this type. We estimate that the refinancing will result in a one-time charge to other nonoperating expense of approximately $1.2 million in the second quarter of 2013, as a result of charges for the unamortized portion of deferred financing costs related to the Old Credit Facility, and a portion of the fees related to the New Credit Facility. Share Repurchase Authorization On April 25, 2013, we announced that our Board of Directors approved a new share repurchase program authorizing us to repurchase up to an additional 10.0 million shares of our Common Stock. Under this program, we may, from time to time, purchase shares in the open market (including pre-arranged stock trading plans in accordance with the guidelines specified in Rule 10b5-1 under the Securities Exchange Act of 1934) or in privately negotiated transactions, subject to market and business conditions. As of April 24, 2013, there were approximately 2.4 million shares remaining available to be repurchased under our previous share repurchase program (as described above in Note 13). Interest Rate Hedges Our existing interest rate hedges remain in effect under the New Credit Facility until April 13, 2014 (see Note 7). In addition, on April 30, 2013, we entered into interest rate hedges that cap the LIBOR rate on borrowings under the New Credit Facility. The 200 basis point LIBOR cap applies to $150 million of borrowings from April 14, 2014 through March 31, 2015. Also, on April 30, 2013, we entered into interest rate swaps to hedge a portion of the cash flows of our floating rate debt from March 31, 2015 through March 29, 2018. We designated the interest rate swaps as cash flow hedges of our exposure to variability in future cash flows attributable to payments of LIBOR due on a related $150 million notional debt obligation from March 31, 2015 through March 31, 2017 and a related $140 million notional debt obligation from April 1, 2017 through March 29, 2018. Under the terms of the swaps, we will pay an average fixed rate of 3.12% on the notional amounts and receive payments from a counterparty based on the 30-day LIBOR rate.

Subsequent Events

Refinancing of Credit Facility

On April 24, 2013, Denny's Corporation and certain of its subsidiaries refinanced our credit facility (the "Old Credit Facility") and entered into a new senior secured credit agreement in an aggregate principal amount of $250 million (the “New Credit Facility”). The New Credit Facility is comprised of a $60 million senior secured term loan and a $190 million senior secured revolver (with a $30 million letter of credit sublimit). As of the closing, there were $105 million of borrowings outstanding under the new revolver. Borrowings under the New Credit Facility bear a tiered interest rate based on the Company's consolidated leverage ratio and is initially set at LIBOR plus 200 basis points. The New Credit Facility includes an accordion feature that would allow us to increase the size of the facility to $300 million. The maturity date for the New Credit Facility is April 24, 2018.

The New Credit Facility is being used to refinance the Old Credit Facility (described in Note 7) and will also be available for working capital, capital expenditures and other general corporate purposes. The New Credit Facility is guaranteed by the Company and its material subsidiaries and is secured by substantially all of the assets of the Company and its subsidiaries, including the stock of the Company's subsidiaries. It includes negative covenants that are usual for facilities and transactions of this type. The New Credit Facility also includes certain financial covenants with respect to a maximum consolidated leverage ratio, a minimum consolidated fixed charge coverage ratio and maximum capital expenditures.

The term loan under the New Credit Facility requires amortization of the original term loan balance of 5% per year in the first two years, 7.5% in the subsequent two years and 10% in the fifth year with the balance due at maturity. We will be required to make certain mandatory prepayments under certain circumstances and will have the option to make certain prepayments under the New Credit Facility. The New Credit Facility includes events of default (and related remedies, including acceleration and increased interest rates following an event of default) that are usual for facilities and transactions of this type. We estimate that the refinancing will result in a one-time charge to other nonoperating expense of approximately $1.2 million in the second quarter of 2013, as a result of charges for the unamortized portion of deferred financing costs related to the Old Credit Facility, and a portion of the fees related to the New Credit Facility.

Share Repurchase Authorization

On April 25, 2013, we announced that our Board of Directors approved a new share repurchase program authorizing us to repurchase up to an additional 10.0 million shares of our Common Stock. Under this program, we may, from time to time, purchase shares in the open market (including pre-arranged stock trading plans in accordance with the guidelines specified in Rule 10b5-1 under the Securities Exchange Act of 1934) or in privately negotiated transactions, subject to market and business conditions. As of April 24, 2013, there were approximately 2.4 million shares remaining available to be repurchased under our previous share repurchase program (as described above in Note 13).

Interest Rate Hedges

Our existing interest rate hedges remain in effect under the New Credit Facility until April 13, 2014 (see Note 7). In addition, on April 30, 2013, we entered into interest rate hedges that cap the LIBOR rate on borrowings under the New Credit Facility. The 200 basis point LIBOR cap applies to $150 million of borrowings from April 14, 2014 through March 31, 2015.

Also, on April 30, 2013, we entered into interest rate swaps to hedge a portion of the cash flows of our floating rate debt from March 31, 2015 through March 29, 2018. We designated the interest rate swaps as cash flow hedges of our exposure to variability in future cash flows attributable to payments of LIBOR due on a related $150 million notional debt obligation from March 31, 2015 through March 31, 2017 and a related $140 million notional debt obligation from April 1, 2017 through March 29, 2018. Under the terms of the swaps, we will pay an average fixed rate of 3.12% on the notional amounts and receive payments from a counterparty based on the 30-day LIBOR rate.