Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash Flows from Operations
Net Income	$ 51,124	$ 40,791
Adjustments to reconcile net income to cash provided by operations:
Depreciation and amortization	24,020	22,875
Deferred income taxes	(2,343)	2,585
Net gains on disposal of property	(193)	(1,719)
Net income attributable to noncontrolling interests	(109)	(111)
Changes in assets and liabilities:
Trade receivables	(69,899)	(49,792)
Merchandise inventory	(68,812)	(101,735)
Other current assets	(1,488)	2,684
Other non-current assets	(4,987)	19,006
Trade accounts payable	79,553	79,513
Accrued payroll and benefit costs	(51,138)	(40,762)
Other current liabilities	12,021	9,589
Other non-current liabilities	(10,809)	(16,373)
Total adjustments to net income	(94,184)	(74,240)
Net cash used by operations	(43,060)	(33,449)
Cash Flows from Investing Activities
Proceeds from disposal of property	1,675	3,039
Capital expenditures for property	(17,668)	(16,547)
Net cash used by investing activities	(15,993)	(13,508)
Cash Flows from Financing Activities
Net increase in short-term borrowings	67,697	58,512
Repayment of long-term debt	0	(1,853)
Principal payments under capital leases	(2,754)	(3,101)
Sale of common stock	12,272	11,963
Purchases of common stock	(6,613)	(5,503)
Purchases of noncontrolling interests’ common stock	(359)	(353)
Dividends paid	(10,624)	(9,977)
Net cash provided by financing activities	59,619	49,688
Net Increase in Cash	566	2,731
Cash, Beginning of Year	43,339	37,931
Cash, End of Period	43,905	40,662
Non-cash Investing and Financing Activities
Acquisitions of equipment under capital leases	$ 351	$ 27