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Post-Retirement Benefits (Tables) | 6 Months Ended
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Dec. 31, 2017
Compensation And Retirement Disclosure [Abstract] |
Schedule of Net Periodic Pension Costs | Net periodic pension costs associated with the Swiss Plan included the following ($000):
|  | Three Months Ended |  |  | Six Months Ended |
|  | December 31, |  |  | December 31, |
|  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Service cost |  | $ | 946 |  |  | $ | 871 |  |  | $ | 1,898 |  |  | $ | 1,768 |
Interest cost |  |  | 107 |  |  |  | 38 |  |  |  | 214 |  |  |  | 78 |
Expected return on plan assets |  |  | (213 | ) |  |  | (175 | ) |  |  | (428 | ) |  |  | (356 | )
Net amortization |  |  | 45 |  |  |  | 561 |  |  |  | 150 |  |  |  | 397 |
Net periodic pension costs |  | $ | 885 |  |  | $ | 1,295 |  |  | $ | 1,834 |  |  | $ | 1,887 |

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- Definition Tabular disclosure of the costs related to the various types of retirement plans including defined benefit pension plan cost, defined contribution plan cost, other postretirement benefit plan cost, and net periodic benefit cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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