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Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2017 | Jun. 30, 2016
--- | --- | ---
Deferred tax assets: |  |
Tax credits and net operating losses | $ 134,052 | $ 116,277
Employee benefits accrual | 106,637 | 109,524
Stock-based compensation | 15,252 | 13,607
Inventory reserves | 95,200 | 94,783
Non-deductible reserves | 43,140 | 34,484
Depreciation and amortization | 3,415 | 15,857
Unearned revenue | 15,757 | 14,375
Other | 26,538 | 26,877
Gross deferred tax assets | 439,991 | 425,784
Valuation allowance | (120,708) | (104,968)
Net deferred tax assets | 319,283 | 320,816
Deferred tax liabilities: |  |
Unremitted earnings of foreign subsidiaries not indefinitely reinvested | (13,213) | (11,571)
Deferred profit | (13,657) | (10,346)
Unrealized gain on investments | (2,707) | (604)
Total deferred tax liabilities | (29,577) | (22,521)
Total net deferred tax assets | $ 289,706 | $ 298,295

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