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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Cash flows from operating activities:    
Net income $ 20,967 $ 18,760
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 26,417 10,809
Stock based compensation expense 10,721 7,147
Provision for losses on accounts receivable 977 445
Deferred income taxes (62) 212
Other 101 182
Changes in operating assets and liabilities-net of business acquisitions:    
Accounts receivable 46,781 17,663
Inventories (8,768) (6,985)
Prepaid expenses and other assets (5,649) 11,373
Accounts payable (32,798) 37,876
Accrued payroll and related expenses (464) (4,874)
Advances from customers (10,648) (13,900)
Accrued warranties (5) (2,728)
Deferred revenue 27,542 (3,567)
Other accrued expenses and liabilities (139) (9,597)
Net cash provided by operating activities 74,973 62,816
Cash flows from investing activities:    
Acquisition of property and equipment (41,702) (117,616)
Acquisition of businesses (10,087) (5,787)
Acquisition of intangible and other assets (2,467) (2,039)
Net cash used in investing activities (54,256) (125,442)
Cash flows from financing activities:    
Net borrowings on bank lines of credit 1,000 15,000
Proceeds from long-term debt 2,841 11,100
Payments on long-term debt (1,562) (375)
Proceeds from exercise of stock options and employee stock purchase plan 1,501 2,974
Repurchase of common shares (12,056) (9,928)
Taxes paid related to net share settlements of equity awards (8,230) (2,397)
Net cash provided by (used in) financing activities (16,506) 16,374
Effect of exchange rate changes on cash 991 1,650
Net increase (decrease) in cash and cash equivalents 5,202 (44,602)
Cash and cash equivalents-beginning of period 34,697 91,452
Cash and cash equivalents-end of period 39,899 46,850
Cash paid, net during the period for:    
Interest 2,878 1,858
Income taxes $ 8,716 $ 5,615