Income Taxes - Reconciliation of unrecognized tax benefits (Details 6) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits at beginning of period	$ 12,261	$ 6,565	$ 6,180
Additions based on tax positions related to prior periods	1,276	4,996	216
Additions based on tax positions related to the current period	1,036	404	646
Reductions related to settlements with tax authorities	(2,215)
Reductions due to lapse of statute of limitations	(5,157)
Exchange effect	219	296	(477)
Unrecognized tax benefits at end of period	$ 7,420	$ 12,261	$ 6,565