Guarantor Financial Information (Condensed Consolidated Statements of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 32,405	$ 28,571
Earnings in investments in subsidiaries	0	0
Other operating cash flows	27,077	25,000
Net cash provided by operating activities	59,482	53,571
Cash flows from investing activities:
Capital expenditures	(26,392)	(24,690)
Investment in unconsolidated subsidiary	(12,535)	(11,351)
Gross proceeds from disposal of property, plant and equipment and other assets	412	2,228
Payments related to routes and other intangibles	(613)	0
Net cash used by investing activities	(39,128)	(33,813)
Cash flows from financing activities:
Payments on long-term debt	(21)	(30,002)
Issuance of common stock	16	64
Proceeds from Contributions from Parent	0	0
Minimum withholding taxes paid on stock awards	(2,523)	(2,157)
Excess tax benefits from stock-based compensation	702	985
Net cash used by financing activities	(1,826)	(31,110)
Net increase (decrease) in cash and cash equivalents	18,528	(11,352)
Cash and cash equivalents at beginning of period	103,249	38,936
Cash and cash equivalents at end of period	121,777	27,584
Issuer [Member]
Cash flows from operating activities:
Net income	32,405	28,571
Earnings in investments in subsidiaries	(29,718)	(30,332)
Other operating cash flows	46,516	42,974
Net cash provided by operating activities	49,203	41,213
Cash flows from investing activities:
Capital expenditures	(13,173)	(8,123)
Investment in unconsolidated subsidiary	(12,560)	(11,376)
Gross proceeds from disposal of property, plant and equipment and other assets	131	1,111
Payments related to routes and other intangibles	(613)
Net cash used by investing activities	(26,215)	(18,388)
Cash flows from financing activities:
Payments on long-term debt	0	(30,000)
Issuance of common stock	16	64
Proceeds from Contributions from Parent	0	0
Minimum withholding taxes paid on stock awards	(2,523)	(2,157)
Excess tax benefits from stock-based compensation	702	985
Net cash used by financing activities	(1,805)	(31,108)
Net increase (decrease) in cash and cash equivalents	21,183	(8,283)
Cash and cash equivalents at beginning of period	96,945	35,207
Cash and cash equivalents at end of period	118,128	26,924
Guarantors [Member]
Cash flows from operating activities:
Net income	30,435	30,474
Earnings in investments in subsidiaries	0	0
Other operating cash flows	(20,600)	(16,795)
Net cash provided by operating activities	9,835	13,679
Cash flows from investing activities:
Capital expenditures	(13,219)	(16,567)
Investment in unconsolidated subsidiary	0	0
Gross proceeds from disposal of property, plant and equipment and other assets	281	1,117
Payments related to routes and other intangibles	0
Net cash used by investing activities	(12,938)	(15,450)
Cash flows from financing activities:
Payments on long-term debt	(21)	(2)
Issuance of common stock	0	0
Proceeds from Contributions from Parent	0	0
Minimum withholding taxes paid on stock awards	0	0
Excess tax benefits from stock-based compensation	0	0
Net cash used by financing activities	(21)	(2)
Net increase (decrease) in cash and cash equivalents	(3,124)	(1,773)
Cash and cash equivalents at beginning of period	5,577	1,773
Cash and cash equivalents at end of period	2,453	0
Non-guarantors [Member]
Cash flows from operating activities:
Net income	(717)	(142)
Earnings in investments in subsidiaries	0	0
Other operating cash flows	1,161	(1,179)
Net cash provided by operating activities	444	(1,321)
Cash flows from investing activities:
Capital expenditures	0	0
Investment in unconsolidated subsidiary	(12,535)	(11,351)
Gross proceeds from disposal of property, plant and equipment and other assets	0	0
Payments related to routes and other intangibles	0
Net cash used by investing activities	(12,535)	(11,351)
Cash flows from financing activities:
Payments on long-term debt	0	0
Issuance of common stock	0	0
Proceeds from Contributions from Parent	12,560	11,376
Minimum withholding taxes paid on stock awards	0	0
Excess tax benefits from stock-based compensation	0	0
Net cash used by financing activities	12,560	11,376
Net increase (decrease) in cash and cash equivalents	469	(1,296)
Cash and cash equivalents at beginning of period	727	1,956
Cash and cash equivalents at end of period	1,196	660
Eliminations [Member]
Cash flows from operating activities:
Net income	(29,718)	(30,332)
Earnings in investments in subsidiaries	29,718	30,332
Other operating cash flows	0	0
Net cash provided by operating activities	0	0
Cash flows from investing activities:
Capital expenditures	0	0
Investment in unconsolidated subsidiary	12,560	11,376
Gross proceeds from disposal of property, plant and equipment and other assets	0	0
Payments related to routes and other intangibles	0
Net cash used by investing activities	12,560	11,376
Cash flows from financing activities:
Payments on long-term debt	0	0
Issuance of common stock	0	0
Proceeds from Contributions from Parent	(12,560)	(11,376)
Minimum withholding taxes paid on stock awards	0	0
Excess tax benefits from stock-based compensation	0	0
Net cash used by financing activities	(12,560)	(11,376)
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and cash equivalents at end of period	$ 0	$ 0