Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Statement of Cash Flows [Abstract]
Net income	$ 71,342	$ 52,516
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	51,871	41,597
Loss on early retirement of debt	0	14,890
Share-based compensation expense	7,611	6,136
Provision for losses on accounts and notes receivable	(182)	(356)
Deferred income tax (benefit) expense	3,643	(7,387)
Changes in operating assets and liabilities:
Accounts and notes receivable	(13,758)	(21,456)
Merchandise inventories	(25,339)	(63,883)
Accounts payable	83,434	54,634
Net change in other assets and liabilities	25,890	3,131
Other, net	1,526	1,322
Cash provided by (used for) operating activities	206,038	81,144
Investing activities:
Additions to property and equipment	(15,321)	(36,169)
Additions to computer software and intangible assets	(16,876)	(17,988)
Proceeds from sale of investment	0	1,937
Proceeds from sale of property and equipment	119	151
Cash used for investing activities	(32,078)	(52,069)
Financing activities:
Long-term debt borrowings	0	547,693
Repayment of revolving credit facility	(33,700)	0
Cash dividends paid	(47,780)	(47,335)
Repurchases of common stock	(15,821)	(9,934)
Excess tax benefits related to share-based compensation	521	514
Proceeds from exercise of stock options	0	1,180
Purchase of noncontrolling interest	0	(1,500)
Debt issuance costs	0	(4,178)
Other, net	(6,296)	(5,671)
Cash provided by (used for) financing activities	(103,076)	480,769
Effect of exchange rate changes on cash and cash equivalents	(2,411)	(1,602)
Net increase in cash and cash equivalents	68,473	508,242
Cash and cash equivalents at beginning of period	56,772	101,905
Cash and cash equivalents at end of period	125,245	610,147
Supplemental disclosure of cash flow information:
Income taxes paid, net	38,709	65,140
Interest paid	$ 20,195	$ 8,417