Debt Instrument Covenant, Total Leverage Ratio, Maximum

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- Definition

Debt Instrument, Covenant Total Leverage Ratio, Thereafter, Maximum

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- Definition

Debt Instrument, Early Elimination, Interest Expense not Incurred Due to Elimination

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- Definition

Debt Instrument Offering Price Percentage

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- Definition

Debt Instrument, Redemption Price

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- Definition

Debt Instrument Yield To Maturity

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- Definition

Increase in Long Term Debt net of Repayments and Discount Amortization

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- Definition

Shelf Registration Statement Maximum Amount Of securities Authorized For Issuance

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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-Topic 210

-SubTopic 10

-Section S99

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-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section S99

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-Subparagraph (SX 210.5-02.19(b),22(b))

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-Name Regulation S-X (SX)

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-Section 02

-Paragraph 19, 22

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Long-Term Debt - Additional Information (Detail) (USD $)	12 Months Ended	0 Months Ended
	Dec. 28, 2014	Feb. 13, 2015	Dec. 29, 2013	Sep. 28, 2014	Oct. 01, 2014
Debt Instrument [Line Items]
Increase in long term debt net of repayments	$ 781,000,000
Shelf registration statement maximum amount of securities authorized for issuance	7,000,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Remaining borrowing capacity	625,500,000
Maximum borrowing capacity	1,300,000,000
Unsecured notes bearing fixed rate interest at 8.75% due November 2014
Debt Instrument [Line Items]
Repayments of debt	250,000,000
Total principal long-term debt	0		250,000,000
Interest rate stated percentage	8.75%
Unsecured notes bearing fixed rate interest at 9.375% due November 2017
Debt Instrument [Line Items]
Repayments of debt	250,000,000
Redemption price (as a percent)	104.688%
Interest expense saved due to early redemption	19,000,000
Total principal long-term debt	0		250,000,000
Interest rate stated percentage	9.375%
Unsecured notes bearing fixed rate interest at 4.875% due September 2021
Debt Instrument [Line Items]
Total principal long-term debt	350,000,000		0	350,000,000
Interest rate stated percentage	4.875%			4.875%
Offering price (as a percent)				98.531%
Debt instrument yield to maturity				5.125%
Unsecured notes bearing fixed rate interest at 5.50% due September 2024
Debt Instrument [Line Items]
Total principal long-term debt	325,000,000		0	325,000,000
Interest rate stated percentage	5.50%			5.50%
Offering price (as a percent)				99.038%
Debt instrument yield to maturity				5.625%
Unsecured notes bearing fixed rate interest at 10% due June 2015
Debt Instrument [Line Items]
Total principal long-term debt	$ 66,568,000		$ 66,568,000
Interest rate stated percentage	10.00%
Cars.com
Debt Instrument [Line Items]
Percentage of ownership interests in subsidiary	73.00%				73.00%
Subsequent Event \| Revolving Credit Facility
Debt Instrument [Line Items]
Total leverage ratio through September 30, 2016		4.0
Total leverage ratio thereafter		3.75
Minimum \| Subsequent Event \| Revolving Credit Facility
Debt Instrument [Line Items]
Commitment fee percentage		0.375%
Maximum \| Subsequent Event \| Revolving Credit Facility
Debt Instrument [Line Items]
Commitment fee percentage		0.50%
Federal Funds Rate \| Subsequent Event \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate		0.50%
LIBOR \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
LIBOR \| Subsequent Event \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate		1.00%
LIBOR \| Minimum \| Subsequent Event \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate		1.75%
LIBOR \| Maximum \| Subsequent Event \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate		2.50%
ABR \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%
ABR \| Minimum \| Subsequent Event \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate		0.75%
ABR \| Maximum \| Subsequent Event \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate		1.50%