Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 248,128	$ 361,552
Accounts receivable, less allowance for doubtful accounts of $6,447 in 2012 and $6,403 in 2011	122,989	135,149
Amounts receivable from vendors	58,185	68,604
Inventory	2,276,331	1,985,748
Other current assets	27,315	56,557
Total current assets	2,732,948	2,607,610
Property and equipment at cost	3,269,570	3,026,996
Less: accumulated depreciation and amortization	1,057,980	933,229
Net property and equipment	2,211,590	2,093,767
Notes receivable, less current portion	5,347	10,889
Goodwill	758,410	743,907
Other assets, net	40,892	44,328
Total assets	5,749,187	5,500,501
Liabilities and shareholders' equity
Accounts payable	1,929,112	1,279,294
Self-insurance reserves, current	54,190	53,155
Accrued payroll	60,120	52,465
Accrued benefits and withholdings	42,417	41,512
Deferred income taxes	19,472	1,990
Income taxes payable	5,932
Other current liabilities	161,400	150,932
Current portion of long-term debt	222	662
Total current liabilities	2,272,865	1,580,010
Long-term debt, less current portion	1,095,734	796,912
Deferred income taxes	79,544	88,864
Other liabilities	192,737	189,864
Shareholders' equity:
Preferred stock, $0.01 par value: Authorized shares - 5,000,000 Issued and outstanding shares - none	0	0
Common stock, $0.01 par value: Authorized shares - 245,000,000 Issued and outstanding shares - 112,963,413 as of December 31, 2012, and 127,179,792 as of December 31, 2011	1,130	1,272
Additional paid-in capital	1,083,910	1,110,105
Retained earnings	1,023,267	1,733,474
Total shareholders' equity	2,108,307	2,844,851
Total liabilities and shareholders' equity	$ 5,749,187	$ 5,500,501