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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Cash flows from operating activities: |  |
Net income | $ 5,510 | $ 10,913
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization | 32,175 | 28,050
Stock based compensation expense | 14,059 | 8,754
Impairment charges | 5,418 | 8,741
Other | 228 | 1,390
Changes in operating assets and liabilities-net of business acquisitions: |  |
Accounts receivable | (12,550) | 19,366
Inventories | 14,216 | (44,872)
Prepaid expenses and other assets | (12,028) | (11,121)
Accounts payable | (966) | 15,528
Advances from customers | (20,055) | 3,884
Deferred revenue | (13,196) | (11,091)
Other | 5,454 | (9,984)
Net cash provided by operating activities | 18,265 | 19,558
Cash flows from investing activities: |  |
Acquisition of property and equipment | (4,329) | (4,940)
Acquisition of businesses, net of cash acquired | (189,014) | (2,109)
Acquisition of intangible and other assets | (2,735) | (2,682)
Net cash used in investing activities | (196,078) | (9,731)
Cash flows from financing activities: |  |
Net borrowings on bank lines of credit | 224,000 | 55,000
Proceeds from long-term debt | 240 | 215
Payments on long-term debt | (1,440) | (1,423)
Proceeds from exercise of stock options and employee stock purchase plan | 6,457 | 4,394
Repurchase of common shares | (7,367) | (22,629)
Taxes paid related to net share settlement of equity awards | (9,015) | (13,049)
Net cash provided by financing activities | 212,875 | 22,508
Effect of exchange rate changes on cash | (1,184) | (139)
Net increase in cash and cash equivalents | 33,878 | 32,196
Cash and cash equivalents-beginning of period | 104,370 | 47,593
Cash and cash equivalents-end of period | 138,248 | 79,789
Supplemental disclosure of cash flow information: |  |
Interest | 2,918 | 895
Income taxes | $ 12,665 | $ 12,268

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