Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash Flows from Operations
Net Income	$ 29,905	$ 59,286
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization	18,017	15,954
Deferred income taxes	(3,990)	1,195
Net gains on disposal of property	(28)	(30,725)
Loss on impairment of property	0	257
Net income attributable to noncontrolling interests	(68)	(143)
Changes in assets and liabilities:
Trade receivables	(78,276)	30,951
Merchandise inventory	(22,254)	(48,841)
Other current assets	(535)	1,572
Other non-current assets	2,778	(588)
Trade accounts payable	128,224	(10,549)
Accrued payroll and benefit costs	(57,107)	(64,232)
Other current liabilities	14,058	25,016
Other non-current liabilities	4,742	4,047
Total adjustments to net income	5,561	(76,086)
Net cash provided (used) by operations	35,466	(16,800)
Cash Flows from Investing Activities
Proceeds from disposal of property	123	33,302
Capital expenditures for property	(24,989)	(21,652)
Net cash (used) provided by investing activities	(24,866)	11,650
Cash Flows from Financing Activities
Net increase in short-term borrowings	12,561	58,543
Repayment of long-term debt	(7,386)	(35,101)
Principal payments under capital leases	(1,516)	(1,418)
Sale of common stock	9,036	8,323
Purchases of common stock	(7,025)	(4,736)
Purchases of noncontrolling interests' common stock	(70)	(2,808)
Dividends paid	(9,376)	(20,776)
Net cash (used) provided by financing activities	(3,776)	2,027
Net Increase (Decrease) in Cash	6,824	(3,123)
Cash, Beginning of Year	37,674	71,967
Cash, End of Period	44,498	68,844
Non-cash Investing and Financing Activities
Acquisitions of equipment under capital leases	$ 1,789	$ 564