Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Assets
Cash and cash equivalents	$ 363,008	$ 248,128	[1]
Accounts receivable, net	141,928	122,989	[1]
Amounts receivable from vendors	72,366	58,185	[1]
Inventory	2,364,538	2,276,331	[1]
Other current assets	33,933	27,315	[1]
Total current assets	2,975,773	2,732,948	[1]
Property and equipment, at cost	3,524,762	3,269,570	[1]
Less: accumulated depreciation and amortization	1,146,364	1,057,980	[1]
Net property and equipment	2,378,398	2,211,590	[1]
Notes receivable, less current portion	14,556	5,347	[1]
Goodwill	758,523	758,410	[1]
Other assets, net	39,926	40,892	[1]
Total assets	6,167,176	5,749,187	[1]
Liabilities and shareholders' equity
Accounts payable	2,075,525	1,929,112	[1]
Self-insurance reserves	57,030	54,190	[1]
Accrued payroll	61,135	60,120	[1]
Accrued benefits and withholdings	44,110	42,417	[1]
Deferred income taxes	10,968	19,472	[1]
Income taxes payable		5,932	[1]
Other current liabilities	190,220	161,400	[1]
Current portion of long-term debt	68	222	[1]
Total current liabilities	2,439,056	2,272,865	[1]
Long-term debt, less current portion	1,396,031	1,095,734	[1]
Deferred income taxes	96,549	79,544	[1]
Other liabilities	199,653	192,737	[1]
Shareholders' equity:
Common stock, $0.01 par value: Authorized shares - 245,000,000 Issued and outstanding shares - 107,667,354 as of September 30, 2013, and 112,963,413 as of December 31, 2012	1,077	1,130	[1]
Additional paid-in capital	1,115,710	1,083,910	[1]
Retained earnings	919,100	1,023,267	[1]
Total shareholders' equity	2,035,887	2,108,307	[1]
Total liabilities and shareholders' equity	$ 6,167,176	$ 5,749,187	[1]

[1] The balance sheet at December 31, 2012, has been derived from the audited consolidated financial statements at that date, but does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.