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Income Taxes Income Tax Rate Reconciliation (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Sep. 30, 2017
Effective Income Tax Rate Reconciliation, Percent [Abstract] |  |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 24.50% | 35.00% | 24.50% | 35.00% | 35.00%
Adjustments to reconcile to the effective tax rate: |  |  |  |  |
State tax rate change | 0.00% | 0.00% | 0.00% | 1.70% |
State income taxes, net of federal benefit | 4.80% | 3.90% | 4.50% | 3.90% |
Tax benefits from stock compensation | (0.20%) | (0.20%) | (1.20%) | (4.60%) |
U.S. manufacturing deduction | (1.70%) | (4.70%) | (1.60%) | (4.50%) |
Tax credits | (1.10%) | (1.00%) | (1.00%) | (1.70%) |
Other | (1.90%) | 2.70% | (0.20%) | (2.30%) |
Effective Income Tax Rate Reconciliation, Recurring, Percent | 28.20% | 35.70% | 25.40% | 32.10% |
Effective Income Tax Rate Reconciliation, Transition Tax, Percent | 0.00% | 0.00% | 12.30% | 0.00% |
Change in rate for deferred taxes | 0.00% | 0.00% | (69.80%) | 0.00% |
Effective income tax rate | 28.20% | 35.70% | (32.10%) | 32.10% |

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 + Details
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