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Consolidated Statements of Comprehensive Income Statement - USD ($) $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2015
Statement of Comprehensive Income [Abstract] |  |  |
Net income | $ 6.4 | $ 54.7 | $ 55.7
Other comprehensive income (loss), net of tax [Abstract] |  |  |
Foreign currency translation adjustment | (1.4) | (7.4) | (4.0)
Pension liabilities adjustment | 1.2 | (0.2) | (1.5)
Net unrealized gain on available-for-sale securities | 0.0 | 0.0 | 2.7
Reclassification of adjustment for losses (gains) included in net income: |  |  |
Periodic pension costs (included in compensation and benefits) | 0.4 | 0.5 | 0.3
Realized gain on available-for-sale securities (included in trading gains, net and interest income) | 0.0 | 0.0 | (5.4)
Income tax expense from reclassification adjustments (included in income tax expense) | (0.1) | 0.0 | 2.0
Reclassification adjustment for losses (gains) included in net income | 0.3 | 0.5 | (3.1)
Other comprehensive income (loss) | 0.1 | (7.1) | (5.9)
Comprehensive income | $ 6.5 | $ 47.6 | $ 49.8

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- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -Subparagraph (b,c) -URI http://asc.fasb.org/extlink&oid=64808268&loc=d3e32211-110900 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669646-108580 + Details
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