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Shareholders' Equity (Tables) | 9 Months Ended
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Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | Accumulated Other Comprehensive (Loss) Income Changes in the accumulated other comprehensive (loss) income, are comprised of the following amounts shown net of taxes:
|  | Three Months Ended March 31, 2018
|  | Foreign currency translation adjustment |  |  | Unrealized gain on securities available for sale |  |  | Postemployment benefits |  |  | Total Accumulated other comprehensive income (loss) |
Balance at December 31, 2017 |  | $ | (77,355 | ) |  | $ | 35 |  |  | $ | (2,294 | ) |  | $ | (79,614 | )
Other comprehensive (loss) income |  | (378 | ) |  | 6 |  |  | — |  |  | (372 | )
Amounts reclassified from accumulated other comprehensive (loss) income |  | — |  |  | — |  |  | (14 | ) |  | (14 | )
Net current-period other comprehensive (loss) income |  | (378 | ) |  | 6 |  |  | (14 | ) |  | (386 | )
Balance at March 31, 2018 |  | $ | (77,733 | ) |  | $ | 41 |  |  | $ | (2,308 | ) |  | $ | (80,000 | )
|  | Three Months Ended March 31, 2017
|  | Foreign currency translation adjustment |  |  | Unrealized (loss) gain on securities available for sale |  |  | Postemployment benefits |  |  | Total Accumulated other comprehensive income (loss) |
Balance at December 31, 2016 |  | $ | (93,964 | ) |  | $ | 11 |  |  | $ | (3,669 | ) |  | $ | (97,622 | )
Other comprehensive income |  | 8,132 |  |  | 1 |  |  | — |  |  | 8,133 |
Amounts reclassified from accumulated other comprehensive (loss) income |  | — |  |  | — |  |  | 77 |  |  | 77 |
Net current-period other comprehensive income |  | 8,132 |  |  | 1 |  |  | 77 |  |  | 8,210 |
Balance at March 31, 2017 |  | $ | (85,832 | ) |  | $ | 12 |  |  | $ | (3,592 | ) |  | $ | (89,412 | )
|  | Nine Months Ended March 31, 2018
|  | Foreign currency translation adjustment |  |  | Unrealized (loss) gain on securities available for sale |  |  | Postemployment benefits |  |  | Total Accumulated other comprehensive income (loss) |
Balance at July 1, 2017 |  | $ | (79,447 | ) |  | $ | 21 |  |  | $ | (2,276 | ) |  | $ | (81,702 | )
Other comprehensive income |  | 1,714 |  |  | 20 |  |  | — |  |  | 1,734 |
Amounts reclassified from accumulated other comprehensive (loss) income |  | — |  |  | — |  |  | (32 | ) |  | (32 | )
Net current-period other comprehensive income (loss) |  | 1,714 |  |  | 20 |  |  | (32 | ) |  | 1,702 |
Balance at March 31, 2018 |  | $ | (77,733 | ) |  | $ | 41 |  |  | $ | (2,308 | ) |  | $ | (80,000 | )
|  | Nine Months Ended March 31, 2017
|  | Foreign currency translation adjustment |  |  | Unrealized loss on securities available for sale |  |  | Postemployment benefits |  |  | Total Accumulated other comprehensive income (loss) |
Balance at July 1, 2016 |  | $ | (81,685 | ) |  | $ | (38 | ) |  | $ | (3,823 | ) |  | $ | (85,546 | )
Other comprehensive (loss) income |  | (4,147 | ) |  | 50 |  |  | — |  |  | (4,097 | )
Amounts reclassified from accumulated other comprehensive (loss) income |  | — |  |  | — |  |  | 231 |  |  | 231 |
Net current-period other comprehensive (loss) income |  | (4,147 | ) |  | 50 |  |  | 231 |  |  | (3,866 | )
Balance at March 31, 2017 |  | $ | (85,832 | ) |  | $ | 12 |  |  | $ | (3,592 | ) |  | $ | (89,412 | )
Schedule of Comprehensive Income (Loss) [Table Text Block] | Details of other comprehensive (loss) income are as follows:
|  | Three Months Ended March 31,
|  | 2018 |  | 2017
|  | Pre-Tax Amount |  | Tax Expense (Benefit) |  | Net Amount |  | Pre-Tax Amount |  | Tax Expense |  | Net Amount
Foreign currency translation adjustments |  | $ | (353 | ) |  | $ | 25 |  |  | $ | (378 | ) |  | $ | 8,132 |  |  | $ | — |  |  | $ | 8,132 |
Postemployment benefits: |  |  |  |  |  |  |  |  |  |  |  |
Reclassification of actuarial (gains) losses and prior service cost into other (income) expense, net and included in net periodic pension costs |  | (19 | ) |  | (5 | ) |  | (14 | ) |  | 125 |  |  | 48 |  |  | 77 |
Unrealized gain on investment securities available for sale |  | (3 | ) |  | (9 | ) |  | 6 |  |  | 11 |  |  | 10 |  |  | 1 |
Other comprehensive (loss) income |  | $ | (375 | ) |  | $ | 11 |  |  | $ | (386 | ) |  | $ | 8,268 |  |  | $ | 58 |  |  | $ | 8,210 |
|  | Nine Months Ended March 31,
|  | 2018 |  | 2017
|  | Pre-Tax Amount |  | Tax Expense (Benefit) |  | Net Amount |  | Pre-Tax Amount |  | Tax Expense |  | Net Amount
Foreign currency translation adjustments |  | $ | 1,775 |  |  | $ | 61 |  |  | $ | 1,714 |  |  | $ | (4,147 | ) |  | $ | — |  |  | $ | (4,147 | )
Postemployment benefits: |  |  |  |  |  |  |  |  |  |  |  |
Reclassification of actuarial (gains) losses and prior service cost into other (income) expense, net and included in net periodic pension costs |  | (55 | ) |  | (23 | ) |  | (32 | ) |  | 377 |  |  | 146 |  |  | 231 |
Unrealized gain on investment securities available for sale |  | 39 |  |  | 19 |  |  | 20 |  |  | 77 |  |  | 27 |  |  | 50 |
Other comprehensive income (loss) |  | $ | 1,759 |  |  | $ | 57 |  |  | $ | 1,702 |  |  | $ | (3,693 | ) |  | $ | 173 |  |  | $ | (3,866 | )

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e526-108580 + Details
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