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Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2015
Statement of Comprehensive Income [Abstract] |  |  |
Net income (loss) | $ 6,239 | $ (54,465) | $ 47,557
Other comprehensive income (loss), net of tax: |  |  |
Unrealized hedge gain (loss) arising during the period, net of tax of $0.1 million in 2017 and $0 million in 2016 and 2015, respectively | (758) | (3,375) | 0
Net hedge (gain) loss reclassified into earnings, net of tax of $0.1 million in 2017 and $0 million in 2016 and 2015, respectively | 459 | 2,131 | 0
Unrealized loss on hedging instruments | (299) | (1,244) | 0
Foreign currency translation adjustment, net of tax of $0 for all periods | 16,593 | 408 | (47,177)
Unrealized loss on marketable securities, net of tax of $0 for all periods | (22) | (122) | 0
Amortization of net actuarial pension loss included in net income, net of tax of $1.0 million, $0.7 million, and $18.5 million in 2017, 2016 and 2015, respectively | 2,392 | 1,609 | 52,249
Pension net gain (loss) arising during the period net of tax of ($3.6 million), $3.5 million and $1.6 million in 2017, 2016, and 2015, respectively | 8,636 | (8,646) | (4,797)
Change in unamortized pension loss during the period related to changes in foreign currency | (1,254) | (216) | 2,350
Other comprehensive income (loss) | 26,046 | (8,211) | 2,625
Comprehensive income (loss) | $ 32,285 | $ (62,676) | $ 50,182

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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e557-108580 + Details
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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