Income Taxes - Reconciliation of unrecognized tax benefits (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance July 1	$ 153,091	$ 147,506	$ 139,907
Additions for tax positions related to current year	2,272	4,195	4,735
Additions for tax positions of prior years	45	8,333	2,618
Additions for acquisitions	0		3,939
Reductions for tax positions of prior years	(927)	(3,790)	(1,175)
Reductions for settlements	(832)	(315)	(3,020)
Reductions for expiration of statute of limitations	(9,388)	(4,480)	(2,792)
Effect of foreign currency translation - decrease	(3,599)
Effect of foreign currency translation - increase		1,642	3,294
Balance June 30	$ 140,662	$ 153,091	$ 147,506

Unrecognized Tax Benefits, Increases Resulting from Acquired Reserves

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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Amount of unrecognized tax benefits.

+ References

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Amount of decrease in unrecognized tax benefits resulting from foreign currency translation.

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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