CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income	$ 29,490	$ 20,967
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	32,082	26,417
Stock based compensation expense	12,078us-gaap_ShareBasedCompensation	10,721us-gaap_ShareBasedCompensation
Provision for losses on accounts receivable	647us-gaap_ProvisionForDoubtfulAccounts	977us-gaap_ProvisionForDoubtfulAccounts
Other	215us-gaap_OtherNoncashIncomeExpense	39us-gaap_OtherNoncashIncomeExpense
Changes in operating assets and liabilities-net of business acquisitions:
Accounts receivable	456	46,781
Inventories	(29,164)us-gaap_IncreaseDecreaseInInventories	(8,768)us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other current assets	4,186	(5,649)
Accounts payable	19,201	(32,798)
Advances from customers	(8,465)	(10,648)
Deferred revenue	(7,557)	27,542
Other accrued expenses and current liabilities	7,781	(608)
Net cash provided by operating activities	60,950	74,973
Cash flows from investing activities:
Acquisition of property and equipment	(6,447)	(41,702)
Acquisition of businesses, net of cash acquired	(14,687)	(10,087)
Acquisition of intangible and other assets	(3,376)	(2,467)
Net cash used in investing activities	(24,510)	(54,256)
Cash flows from financing activities:
Net borrowings on bank lines of credit	(1,000)	1,000
Proceeds from long-term debt	653	2,841
Payments on long-term debt	(1,470)us-gaap_RepaymentsOfLongTermDebt	(1,562)us-gaap_RepaymentsOfLongTermDebt
Proceeds from exercise of stock options and employee stock purchase plan	1,941	1,501
Repurchase of common shares	(22,617)	(12,056)
Taxes paid related to net share settlement of equity awards	(6,847)	(8,230)
Net cash used in financing activities	(29,340)	(16,506)
Effect of exchange rate changes on cash	(1,151)	991
Net increase in cash and cash equivalents	5,949	5,202
Cash and cash equivalents-beginning of period	38,831	34,697
Cash and cash equivalents-end of period	44,780	39,899
Cash paid, net during the period for:
Interest	1,347us-gaap_InterestPaidNet	2,878us-gaap_InterestPaidNet
Income taxes	$ 6,559us-gaap_IncomeTaxesPaidNet	$ 8,716us-gaap_IncomeTaxesPaidNet

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