Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash Flows from Operations
Net Income	$ 81,274	$ 86,598	$ 81,891
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization	36,944	32,449	33,140
Deferred income taxes	(3,441)	9,877	424
Net losses (gains) on disposal of property	418	(30,638)	140
Losses on impairment of property	0	1,066	312
Net income attributable to noncontrolling interests	(211)	(307)	(466)
Changes in assets and liabilities:
Trade receivables	(40,682)	29,764	(116,802)
Merchandise inventory	(31,633)	(20,629)	(5,774)
Other current assets	(15,261)	(4,108)	(7,616)
Other non-current assets	(127)	4,115	3,858
Trade accounts payable	56,946	(52,957)	90,816
Accrued payroll and benefit costs	(15,988)	(8,715)	22,454
Other current liabilities	11,955	7,855	(3,520)
Other non-current liabilities	10,694	5,487	(3,949)
Total adjustments to net income	9,614	(26,741)	13,017
Net cash provided by operations	90,888	59,857	94,908
Cash Flows from Investing Activities
Proceeds from disposal of property	447	34,079	296
Capital expenditures for property	(58,223)	(61,362)	(62,162)
Investment in affiliated company	0	478	870
Net cash used by investing activities	(57,776)	(26,805)	(60,996)
Cash Flows from Financing Activities
Net increase in short-term borrowings	11,326	28,554	22,867
Repayment of long-term debt	(7,386)	(38,851)	(43,864)
Principal payments under capital leases	(3,067)	(2,960)	(3,306)
Sales of common stock	12,839	11,925	11,121
Purchases of treasury stock	(12,772)	(11,172)	(9,264)
Sales of noncontrolling interests’ common stock	488	0	512
Purchases of noncontrolling interests’ common stock	(148)	(2,863)	(109)
Dividends paid	(37,401)	(51,978)	(22,258)
Net cash used by financing activities	(36,121)	(67,345)	(44,301)
Net Decrease in Cash	(3,009)	(34,293)	(10,389)
Cash, Beginning of Year	37,674	71,967	82,356
Cash, End of Year	34,665	37,674	71,967
Non-cash Investing and Financing Activities:
Acquisition of property under capital leases	3,632	1,971	2,332
Interest, net of amounts capitalized	1,508	2,376	10,880
Income taxes, net of refunds	$ 44,676	$ 58,018	$ 55,136