Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Assets
Cash and cash equivalents	$ 365,930	$ 248,128	[1]
Accounts receivable, net	175,877	122,989	[1]
Amounts receivable from vendors	82,235	58,185	[1]
Inventory	2,345,377	2,276,331	[1]
Other current assets	35,738	27,315	[1]
Total current assets	3,005,157	2,732,948	[1]
Property and equipment, at cost	3,431,756	3,269,570	[1]
Less: accumulated depreciation and amortization	1,129,485	1,057,980	[1]
Net property and equipment	2,302,271	2,211,590	[1]
Notes receivable, less current portion	16,295	5,347	[1]
Goodwill	758,537	758,410	[1]
Other assets, net	41,386	40,892	[1]
Total assets	6,123,646	5,749,187	[1]
Liabilities and shareholders' equity
Accounts payable	2,058,859	1,929,112	[1]
Self-insurance reserves	56,726	54,190	[1]
Accrued payroll	60,687	60,120	[1]
Accrued benefits and withholdings	41,273	42,417	[1]
Deferred income taxes	12,082	19,472	[1]
Income taxes payable	11,075	5,932	[1]
Other current liabilities	189,527	161,400	[1]
Current portion of long-term debt	69	222	[1]
Total current liabilities	2,430,298	2,272,865	[1]
Long-term debt, less current portion	1,395,922	1,095,734	[1]
Deferred income taxes	86,854	79,544	[1]
Other liabilities	204,429	192,737	[1]
Shareholders' equity:
Common stock, $0.01 par value: Authorized shares - 245,000,000 Issued and outstanding shares - 108,886,775 as of June 30, 2013, and 112,963,413 as of December 31, 2012	1,089	1,130	[1]
Additional paid-in capital	1,102,900	1,083,910	[1]
Retained earnings	902,154	1,023,267	[1]
Total shareholders' equity	2,006,143	2,108,307	[1]
Total liabilities and shareholders' equity	$ 6,123,646	$ 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.