Subsequent Event (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended						4 Months Ended		12 Months Ended
	Dec. 28, 2013	Oct. 05, 2013	Jul. 13, 2013	Dec. 29, 2012	Oct. 06, 2012	Jul. 14, 2012	Apr. 20, 2013	Apr. 21, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Number of States in which Entity Operates	39								39
Loans Payable	$ 0			$ 0					$ 0	$ 0
Line of Credit Facility, Amount Outstanding	0			0					0	0
Business Acquisition, Cost of Acquired Entity, Cash Paid									186,137	8,369	23,133
Business acquisition, expected proceeds from sale of certain assets	16,798								16,798
Net sales	1,408,813	1,520,144	1,549,553	1,329,201	1,457,527	1,460,983	2,015,304	1,957,292	6,493,814	6,205,003	6,170,462
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	33,691								33,691
Following GPI acquisition [Member]
Number of States in which Entity Operates	45								45
Pro Forma [Member]
Net sales									9,456,000
GPI Selling, general and administrative expenses [Member]
Business Combination, Acquisition Related Costs									24,983
Subsequent Event [Member]
Loans Payable	700,000								700,000
Line of Credit Facility, Amount Outstanding	306,046								306,046
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	6,650								6,650
GPI interest expense [Member]
Business Combination, Acquisition Related Costs									1,987
GPI [Member]
Cash paid in acquisition									1,307,724
Repayment of GPI debt									694,301
Amount paid for make-whole fees and transaction related fees									78,512
Business Combination, Acquisition Related Costs									26,970
GPI Worldpac [Member]
Number of Stores	105								105
Carquest indepently owned locations [Member]
Number of Stores	1,400								1,400
GPI [Member]
Number of Stores	1,248								1,248
Business Acquisition, Cost of Acquired Entity, Purchase Price									$ 2,080,537