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Stock-based Compensation Plans (Tables) | 3 Months Ended
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Dec. 31, 2018
Share-based Compensation [Abstract] |
Share-based Compensation, Activity [Table Text Block] |
|  | Number granted |  | Weighted average grant date fair value per instrument |  | Total grant date fair value (in millions)
Restricted stock units |  | 147,409 |  |  | $ | 10.53 |  |  | $ | 1.6 |
Employee stock purchase plan instruments |  | 45,464 |  |  | 2.30 |  |  | 0.1 |
Phantom Plan awards |  | 168,380 |  |  | 10.53 |  |  | 1.8 |
PRSUs: 2019 award |  | 110,595 |  |  | 10.53 |  |  | 1.2 |
2018 award |  | 49,236 |  |  | 10.53 |  |  | 0.5 |
2017 award |  | 31,229 |  |  | 10.53 |  |  | 0.3 |
|  |  |  |  |  | $ | 5.5 |

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- Definition Tabular disclosure for share-based compensation 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- References No definition available. + Details
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