Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash Flows from Operations
Net Income	$ 79,366	$ 68,340
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization	24,013	24,640
Deferred income taxes	3,000	5,360
Net gains on disposal of property	(30,732)	(36)
Loss on impairment of property	257	0
Net income attributable to noncontrolling interests	(211)	(345)
Changes in assets and liabilities:
Trade receivables	14,936	(170,094)
Merchandise inventory	(58,738)	(38,681)
Other current assets	3,355	318
Other non-current assets	(2,135)	2,811
Trade accounts payable	8,285	98,529
Accrued payroll and benefit costs	(37,367)	(9,932)
Other current liabilities	14,194	23,870
Other non-current liabilities	8,003	(7,808)
Total adjustments to net income	(53,140)	(71,368)
Net cash provided (used) by operations	26,226	(3,028)
Cash Flows from Investing Activities
Proceeds from disposal of property	33,577	495
Capital expenditures for property	(30,662)	(52,093)
Net cash provided (used) by investing activities	2,915	(51,598)
Cash Flows from Financing Activities
Net increase in short-term borrowings	33,114	71,557
Repayment of long-term debt	(35,101)	(25,432)
Principal payments under capital leases	(2,186)	(2,426)
Sale of common stock	10,501	9,745
Purchases of common stock	(8,119)	(7,340)
Sales of noncontrolling interests' common stock	0	512
Purchases of noncontrolling interests' common stock	(2,855)	(104)
Dividends paid	(24,672)	(22,258)
Net cash (used) provided by financing activities	(29,318)	24,254
Net Decrease in Cash	(177)	(30,372)
Cash, Beginning of Year	71,967	82,356
Cash, End of Period	71,790	51,984
Non-cash Investing and Financing Activities
Acquisitions of equipment under capital leases	$ 1,674	$ 1,976