Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Assets
Cash and cash equivalents	$ 511,831	$ 231,318	[1]
Accounts receivable, net	142,703	131,504	[1]
Amounts receivable from vendors	69,034	66,619	[1]
Inventory	2,397,042	2,375,047	[1]
Other current assets	40,663	30,713	[1]
Total current assets	3,161,273	2,835,201	[1]
Property and equipment, at cost	3,676,061	3,606,837	[1]
Less: accumulated depreciation and amortization	1,212,962	1,181,734	[1]
Net property and equipment	2,463,099	2,425,103	[1]
Notes receivable, less current portion	12,165	13,066	[1]
Goodwill	756,225	756,225	[1]
Other assets, net	37,011	37,613	[1]
Total assets	6,429,773	6,067,208	[1]
Liabilities and shareholders' equity
Accounts payable	2,160,897	2,056,521	[1]
Self-insurance reserves	68,625	57,700	[1]
Accrued payroll	64,473	65,520	[1]
Accrued benefits and withholdings	42,405	41,262	[1]
Deferred income taxes	21,977	20,222	[1]
Income taxes payable	51,971	0	[1]
Other current liabilities	187,428	181,718	[1]
Current portion of long-term debt	74	67	[1]
Total current liabilities	2,597,850	2,423,010	[1]
Long-term debt, less current portion	1,396,242	1,396,141	[1]
Deferred income taxes	75,162	80,713	[1]
Other liabilities	197,295	201,023	[1]
Shareholders' equity:
Common stock, $0.01 par value: Authorized shares - 245,000,000 Issued and outstanding shares - 106,303,884 as of March 31, 2014, and 105,939,766 as of December 31, 2013	1,063	1,059	[1]
Additional paid-in capital	1,162,413	1,118,929	[1]
Retained earnings	999,748	846,333	[1]
Total shareholders' equity	2,163,224	1,966,321	[1]
Total liabilities and shareholders' equity	$ 6,429,773	$ 6,067,208	[1]

[1] The balance sheet at December 31, 2013, 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.