Income Taxes - Provision For (Benefit From) Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Income Tax Reconciliation
Federal tax provision at statutory rate	$ 57,058	$ 73,621	$ 73,723
State income taxes	1,231	967	1,153
Tax Cuts and Jobs Act	5,162	0	0
Effect of foreign operations	4,700	2,912	3,581
Foreign taxes and rate differences	(164)	(206)	(663)
Stock-based compensation	(2,951)	991	1,359
Tax credits	(7,912)	(6,614)	(3,867)
Tax contingencies	(185)	(19,645)	(581)
Return to provision adjustments	(487)	464	658
Domestic Production Activity Deduction	(4,869)	(6,261)	(4,892)
Valuation allowance	2,326	1,522	49
Other	746	399	168
Provision for income taxes	$ 54,655	$ 48,150	$ 70,688

Represents an increase (decrease) in the return to the income tax provision (benefit).

No definition available.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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Amount of the difference between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for qualified production activity.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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