Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Components of Net Periodic Pension Cost (Details)

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Employee Benefit Plans - Components of Net Periodic Pension Cost (Details) - Foreign Pension Plans, Defined Benefit - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2013
Components of net periodic pension cost      
Service cost $ 3,905 $ 4,054 $ 3,399
Interest cost 1,562 1,401 1,320
Return on plan assets (450) (321) (315)
Amortization of transitional obligation 259 262 372
Amortization of prior service cost 46 52 58
Amortization of net loss 1,014 1,021 633
Adjustment (177) 0 (1,436)
Net periodic pension cost $ 6,159 $ 6,469 $ 4,031