Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Assets
Cash and cash equivalents	$ 231,318	$ 248,128
Accounts receivable, less allowance for doubtful accounts $6,661 in 2013 and $6,447 in 2012	131,504	122,989
Amounts receivable from vendors	66,619	58,185
Inventory	2,375,047	2,276,331
Other current assets	30,713	27,315
Total current assets	2,835,201	2,732,948
Property and equipment, at cost	3,606,837	3,269,570
Less: accumulated depreciation and amortization	1,181,734	1,057,980
Net property and equipment	2,425,103	2,211,590
Notes receivable, less current portion	13,066	5,347
Goodwill	756,225	758,410
Other assets, net	37,613	40,892
Total assets	6,067,208	5,749,187
Liabilities and shareholders' equity
Accounts payable	2,056,521	1,929,112
Self-insurance reserves	57,700	54,190
Accrued payroll	65,520	60,120
Accrued benefits and withholdings	41,262	42,417
Deferred income taxes	20,222	19,472
Income taxes payable	0	5,932
Other current liabilities	181,718	161,400
Current portion of long-term debt	67	222
Total current liabilities	2,423,010	2,272,865
Long-term debt, less current portion	1,396,141	1,095,734
Deferred income taxes	80,713	79,544
Other liabilities	201,023	192,737
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 - 105,939,766 as of December 31, 2013, and 112,963,413 as of December 31, 2012	1,059	1,130
Additional paid-in capital	1,118,929	1,083,910
Retained earnings	846,333	1,023,267
Total shareholders' equity	1,966,321	2,108,307
Total liabilities and shareholders' equity	$ 6,067,208	$ 5,749,187