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Stock Based Compensation (Tables) | 9 Months Ended
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Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Share-based Compensation, Stock Options, Activity [Table Text Block] | A summary of option plan activity under these plans is as follows:
| Number of Shares |  | Weighted Average Exercise Price |  | Aggregate Intrinsic Value
Outstanding July 1, 2017 | 72 |  |  | $ | 50.04 |  |  |
Granted | — |  |  | — |  |  |
Forfeited | — |  |  | — |  |  |
Exercised | (10 | ) |  | 17.45 |  |  |
Outstanding March 31, 2018 | 62 |  |  | $ | 55.32 |  |  | $ | 4,048 |
Vested and Expected to Vest March 31, 2018 | 62 |  |  | $ | 55.32 |  |  | $ | 4,048 |
Exercisable March 31, 2018 | 30 |  |  | $ | 21.58 |  |  | $ | 2,981 |
Schedule of Nonvested Restricted Stock Activity [Table Text Block] | The following table summarizes non-vested share awards as of March 31, 2018, as well as activity for the nine months then ended:
Share awards | Shares |  | Weighted Average Grant Date Fair Value
Outstanding July 1, 2017 | 36 |  |  | $ | 73.66 |
Granted | — |  |  | — |
Vested | (11 | ) |  | 58.30 |
Forfeited | (1 | ) |  | 64.60 |
Outstanding March 31, 2018 | 24 |  |  | $ | 80.54 |
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] | The following table summarizes non-vested unit awards as of March 31, 2018, as well as activity for the nine months then ended:
Unit awards | Units |  | Weighted Average Grant Date Fair Value |  | Aggregate Intrinsic Value
Outstanding July 1, 2017 | 386 |  |  | $ | 67.84 |  |  |
Granted | 115 |  |  | 96.46 |  |  |
Vested | (155 | ) |  | 56.87 |  |  |
Forfeited | (4 | ) |  | 80.81 |  |  |
Outstanding March 31, 2018 | 342 |  |  | $ | 82.28 |  |  | $ | 41,322 |
ScheduleOfShareBasedPaymentAwardRSUValuationAssumptionsTableTextBlock [Table Text Block] | The weighted average assumptions used in this model to estimate fair value at the measurement date and resulting values for 81 unit awards granted in fiscal 2018 are as follows:
Volatility | 15.60 | %
Risk free interest rate | 1.55 | %
Dividend yield | 1.20 | %
Stock Beta | 0.687 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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