CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Current Assets
Cash and cash equivalents	$ 74,284	$ 80,900
Short-term investments	35,528	27,944
Trade accounts receivable, less allowance of $8,650 and $6,591	408,787	368,377
Other receivables, including advances to independent contractors, less allowance of $4,657 and $5,384	55,278	53,263
Deferred income taxes and other current assets	18,067	21,308
Total current assets	591,944	551,792
Operating property, less accumulated depreciation and amortization of $158,999 and $145,804	158,953	142,146
Goodwill	57,470	57,470
Other assets	71,054	57,041
Total assets	879,421	808,449
Current Liabilities
Cash overdraft	33,647	25,905
Accounts payable	188,981	163,307
Current maturities of long-term debt	19,016	17,212
Insurance claims	64,509	76,624
Other current liabilities	38,186	48,065
Total current liabilities	344,339	331,113
Long-term debt, excluding current maturities	95,125	115,130
Insurance claims	21,896	27,494
Deferred income taxes and other noncurrent liabilities	38,607	34,135
Shareholders' Equity
Common stock, $0.01 par value, authorized 160,000,000 shares, issued 66,859,864 and 66,602,486 shares	669	666
Additional paid-in capital	173,976	165,712
Retained earnings	1,042,956	947,156
Cost of 20,411,736 and 19,882,289 shares of common stock in treasury	(839,517)	(813,684)
Accumulated other comprehensive income	1,370	727
Total shareholders' equity	379,454	300,577
Total liabilities and shareholders'equity	$ 879,421	$ 808,449