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, 2016
Jun. 30, 2015
Jun. 30, 2014
Components of net periodic pension cost      
Service cost $ 3,349 $ 3,905 $ 4,054
Interest cost 1,322 1,562 1,401
Return on plan assets (406) (450) (321)
Amortization of transitional obligation 249 259 262
Amortization of prior service cost 46 46 52
Amortization of net loss 1,132 1,014 1,021
Adjustment 0 (177) 0
Net periodic pension cost $ 5,692 $ 6,159 $ 6,469