Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 26, 2016	Dec. 26, 2015
Current Assets
Cash and cash equivalents	$ 156,284	$ 114,520
Short-term investments	61,140	48,823
Trade accounts receivable, less allowance of $4,777 and $4,327	383,057	462,699
Other receivables, including advances to independent contractors, less allowance of $4,373 and $4,143	28,778	18,472
Other current assets	7,529	11,604
Total current assets	636,788	656,118
Operating property, less accumulated depreciation and amortization of $185,236 and $182,591	228,474	225,927
Goodwill	31,134	31,134
Other assets	61,096	78,339
Total assets	957,492	991,518
Current Liabilities
Cash overdraft	30,073	35,609
Accounts payable	172,035	223,709
Current maturities of long-term debt	43,148	42,499
Insurance claims	22,026	19,757
Other current liabilities	54,786	47,963
Total current liabilities	322,068	369,537
Long-term debt, excluding current maturities	81,385	81,793
Insurance claims	21,493	21,477
Deferred income taxes and other noncurrent liabilities	50,157	52,474
Shareholders' Equity
Common stock, $0.01 par value, authorized 160,000,000 shares, issued 67,473,450 and 67,391,616 shares	675	674
Additional paid-in capital	195,667	195,841
Retained earnings	1,415,763	1,389,975
Cost of 25,147,079 and 24,972,079 shares of common stock in treasury	(1,126,993)	(1,116,765)
Accumulated other comprehensive loss	(2,723)	(3,488)
Total shareholders' equity	482,389	466,237
Total liabilities and shareholders' equity	$ 957,492	$ 991,518