Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating activities:
Net income	$ 66,503us-gaap_ProfitLoss	$ 110,882us-gaap_ProfitLoss	$ 109,003us-gaap_ProfitLoss
Adjustments to reconcile net income to cash provided by (used for) operating activities of continuing operations:
Depreciation and amortization	63,407	50,586	39,604
Share-based compensation expense	8,207us-gaap_ShareBasedCompensation	6,381us-gaap_ShareBasedCompensation	5,697us-gaap_ShareBasedCompensation
Deferred income tax (benefit) expense	(3,385)us-gaap_DeferredIncomeTaxExpenseBenefit	3,713us-gaap_DeferredIncomeTaxExpenseBenefit	1,060us-gaap_DeferredIncomeTaxExpenseBenefit
Provision for losses on accounts and notes receivable	448us-gaap_ProvisionForDoubtfulAccounts	787us-gaap_ProvisionForDoubtfulAccounts	1,004us-gaap_ProvisionForDoubtfulAccounts
Loss on early retirement of debt	14,890	0	0
Changes in operating assets and liabilities:
Accounts and notes receivable	(17,803)	(38,645)	27,161
Merchandise inventories	(57,329)us-gaap_IncreaseDecreaseInInventories	(7,064)us-gaap_IncreaseDecreaseInInventories	58,734us-gaap_IncreaseDecreaseInInventories
Accounts payable	(52,148)	47,374	(18,694)
Net change in other assets and liabilities	(25,828)	(32,337)	(4,490)
Other, net	(723)us-gaap_OtherNoncashIncomeExpense	(1,123)us-gaap_OtherNoncashIncomeExpense	(573)us-gaap_OtherNoncashIncomeExpense
Cash (used for) provided by operating activities	(3,761)	140,554	218,506
Investing activities:
Acquisition, net of cash acquired	(248,536)	0	(155,210)
Payments to Acquire Software	22,384us-gaap_PaymentsToAcquireSoftware	32,010us-gaap_PaymentsToAcquireSoftware	29,131us-gaap_PaymentsToAcquireSoftware
Additions to property and equipment	(48,424)	(28,119)	(9,832)
Proceeds from sale of property and equipment	156	3,051	3,298
Proceeds from investment sale	1,937	0	0
Cash used for investing activities	(317,251)	(57,078)	(190,875)
Financing activities:
Proceeds from issuance of debt	547,693	0	0
Proceeds from revolver	33,700us-gaap_ProceedsFromLinesOfCredit	0us-gaap_ProceedsFromLinesOfCredit	0us-gaap_ProceedsFromLinesOfCredit
Repayment of debt	(217,352)us-gaap_RepaymentsOfLongTermDebt	0us-gaap_RepaymentsOfLongTermDebt	0us-gaap_RepaymentsOfLongTermDebt
Cash dividends paid	(63,104)us-gaap_PaymentsOfDividends	(60,731)us-gaap_PaymentsOfDividends	(55,681)us-gaap_PaymentsOfDividends
Repurchases of common stock	(9,934)	(18,876)	(15,000)
Financing costs paid	(5,391)us-gaap_PaymentsOfFinancingCosts	0us-gaap_PaymentsOfFinancingCosts	(1,303)us-gaap_PaymentsOfFinancingCosts
Proceeds from exercise of stock options	1,180	5,352	4,986
Excess tax benefits related to share-based compensation	582	898	1,293
Purchase of noncontrolling interest	(1,500)	0	0
Other, net	(7,314)	(8,623)	(2,710)
Cash provided by (used for) financing activities	278,560	(81,980)	(68,415)
Effect of exchange rate changes on cash and cash equivalents	(2,681)	2,521	2,734
Net increase (decrease) in cash and cash equivalents	(45,133)	4,017	(38,050)
Cash and cash equivalents at beginning of year	101,905	97,888	135,938
Cash and cash equivalents at end of year	$ 56,772	$ 101,905	$ 97,888

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.